291results about How to "Improve yield per unit area" patented technology

The invention discloses a peach tree shape applicable for high-density planting. The peach tree shape of the invention is Y-shaped, and consists of a trunk and two large branch groups. Two large fruit branch groups can be produced on the upside of the trunk, and are arrayed oppositely in a line, and respectively extend into the two side rows; the extension direction is perpendicular to the row direction, as well as has a 45-55 degrees angle with the vertical direction. Fruit branches and small sized fruit branch groups are produced on the large fruit branch groups. The peach tree shape of the invention is applicable for high density planting, the structure of the tree is simple, the pruning is simple, the forming is quick, and the cost is low. The method of the invention is easy to be learned, the operation is simple. Standard management can be conducted for the invention to ensure that the peach orchard realize early rich and high-quality yield, high yield and stable yield.

The invention discloses premix compound for aquatic products, the application thereof in feed additive and the batch thereof. In the premix compound per kilogram, vitamin B complex accounts for 80 to 140g, composite trace element accounts for 110 to 200g, taurine accounts for 100 to 300g, phytase accounts for 10 to 30g, glutamine accounts for 100 to 300g, DMPT accounts for 5 TO 20 g, composite microbial ecological agent accounts for 1 to 10g, composite traditional Chinese medicine composition accounts for 1 to 10g, and the margin is a carrier. The ingredients of the composite microbial ecological agent include fermented powder of bacillus subtilis CGMCC, No. 4628, fermented powder of bacillus licheniformis CGMCC, No. 5094 and fermented powder of enterococcus faecalis CGMCC, No. 5092. The main ingredients of the composite microbial ecological agent include three probiotics. Not only the probiotic function is achieved, but also the premix compound can be used for purification and conditioning to aquaculture water body, the environmental suitability is strong, the function is stable, and pollutants such as ammonia nitrogen, tric nitrogen, trite nitrogen, COD and the like in the water body are effectively degraded.

The invention belongs to the technical field of application biology and relates to a composite micro-ecological preparation for an aquatic product and a premix thereof. The efficient and multifunctional composite micro-ecological preparation is formed by combining multiple beneficial strains having different functions in a certain proportion; the preparation can obviously promote individual weight increment of an aquatic animal and improve yield per unit area and total yield, thereby increasing the income of aquaculture and improving benefits; and the preparation provided by the invention has the effects in multiple aspects of improving water quality, increasing algae in water, inhibiting harmful flora, improving the environment in the intestinal tract of an aquaculture animal, increasing feed and the like.

The invention discloses a cultivation method for improving corn yield in saline-alkali land. The method comprises the following steps: irrigating the saline-alkali land for flooding for once in the middle of March, wherein the irrigation volume for per mu is 60-100 m<3>, airing for 1-1.5 months until the surface of earth is dry enough to allow people to step on, applying 1000kg-1500kg of miscellaneous manure or 50kg-55kg of compound fertilizer per mu, then performing rotary tillage for 1-2 times to mix soil and the fertilizer, pressing by using a harrow and preserving soil moisture, and leveling the surface of earth; treating corn by using a seed coating agent before the corn is seeded, wherein the seed coating agent comprises actinomycin, bacillus mucilaginosus, azospirillum, diatomite, spicy powder, heteroauxin, potassium sulphate, magnesium sulfate, zinc sulfate, an alpha-pimacol growth regulator, an EDTA-2Na chelating agent, humic acid and turf; mixing bactericide and insecticide with seeds for treating the seeds, namely, firstly adding the insecticide, and then adding the bactericide after piling for 3-6 hours; and immediately seeding after the seed mixing treatment is finished.

The present invention discloses a method to plant Moringa oleifera used to dry-land fruit trees at the dry and hot valley of Jinsha River, pertaining to the field of forestry planting technologies. The method includes five steps, i.e. nutrition-bag seedling raising, selection of planting land, planting, caring and protection, and seed collection. A 60cm wide streaky level-ground is prepared 1-2 months prior to planting, the row spacing is 250cm, the plant spacing is 250-300cm, 60 multiply 60 multiply 70cm pits for Moringa oleifera planting are dug, 3-5kg farmyard manure or 1kg fertilizer mixture containing 16 percent of calcium superphosphate is filled in each pit as basal fertilizer; the seedlings are raised from April to May, and planted during the rainy season from June to July; the Moringa oleifera is trimmed and sheared carefully; irrigation is conducted 2-3 times during dry seasons, and fertilized once during the irrigation in January. The method is comprehensive, simple and easy to promote, and is capable to achieve 40-57kg Moringa oleifera seeds per mu 3-4 years after planting, the yield is increased by 24-78 percent and 27-81 percent compared with 1 and 2 respectively; thereby, the yield per unit area and the income are increased.

The invention discloses a pond poly-culture method for tilapia mossambica and litopenaeus vannamei. The pond poly-culture method comprises the following steps of: adding quick lime into a dry pond in spring every year, injecting water to carry out water sterilization, adding 50 kg-100 kg of fermented chicken manure into each mu of the pond when the water temperature is stabilized to over 20 DEG C, injecting water until water depth is 40cm-60cm, waiting for 1-2 weeks, adding 8000-12000 litopenaeus vannamei shrimp seeds into each mu of the pond, and feeding special poly-culture feed; injecting water after 15-20 days until water depth is 100cm-120cm, adding 1500-2500 tilapia mossambica fries into each mu of the pond, feeding the poly-culture feed, injecting water after 15-20 days until water depth is 200cm-250cm, oxygenating for 3-7 hours every day, and mixing 20kg-30kg of the quick lime with water to spray for each mu of the pond once to twice every month; catching the tilapia mossambica and litopenaeus vannamei after 120-150 days. According to the pond poly-culture method disclosed by the invention, the special poly-culture feed is fed, prawn quality is high, water pollution is less, management is easy, cost is low and benefits are high.

The invention discloses an artificial cultivation method for savatier monochasma herb. The method comprises the aspects of planting base establishing, breeding, planting, field managing, harvesting, processing, storing and seed reserving. By adopting the cultivation method, the survival rate of medicine materials is high, the per unit area yield is high, the content of the flavonoid and other effective components is high, the quality of the medicine materials is stable, the pesticide residue does not exist, the pollution does not exist, the heave metal content is low, the quality control is easy to carry out during large-area generalizing and planting, the environmentally-friendly Chinese medicine materials are achieved, the medicine material products are accordant with the standard in the Chinese pharmacopoeia in the 2010 edition.

The invention discloses a fructus momordicae high-yield cultivation technology allowing the fructus momordicae to be planted one time and harvested two times in a year, which is characterized by comprising the following steps: selecting high-yield disease-resistant and early-maturing tissue culture cutting seedlings for germchit; setting the field planting time before March 25; arranging a layer of 40-45 mesh fly net at area around and 50-60 cm above a conventional shed frame before field planting, and placing the fructus momordicae plants in the fly net; hollowing out a pan-depth pit on each planting hole three days before planting, applying 0.3 jin of compound fertilizer and 0.5 jin of biological organic fertilizer in each hole in such a way that the fertilizers are dissolved by water to spray at the periphery of the hole, and followed by soil covering so as to form a turtleback shape; and adopting a three-level vine branch for bearing fruits by the whole vine, reserving 12 fruit-bearing vines by each plant, after first time harvesting, carrying out shearing and reserving 10-14 branches by each plant for secondary fruit-bearing vines. According to the method provided by the invention, two harvestings in one year are achieved, the yield is improved, and the proportion of large and middle-size fructus momordicae is increased; and besides, continuous cropping can be realized, multiple harvestings in a year can be also achieved, both labor and investment are saved, and the economic benefits are remarkable.

A high-yield cultivating method of corns belongs to agriculture and overcomes the shortcoming that an existing planting method is difficult in continuing to increase yield. The high-yield cultivating method of the corns comprises performing deep scarification of furrows at intervals one by one on ridged cultivated land, and applying farmyard manure in a deep scarification layer while performing deep scarification, watering in the furrows after deep scarification and fertilization, sowing seeds in the watered furrows, paving straw in the furrows where the straw is cut in autumn harvest, in the next year performing the deep scarification, fertilization, watering and seeding cultivation in furrows which are idle in the last year, idling the furrows where the seeds are sown and the straw is paved, repeating the cycle, and forming the law that cultivation is performed to each furrow every other year, namely performing alternate cultivation to adjacent furrows on an annual basis. The high-yield cultivating method of the corns has the advantages of water retention and duration of soil fertility-keeping ability. Crops are good in light transmission and ventilation, deep in root system and resistant to lodging. The straw returning to the field keeps warm, preserves soil moisture, resists soil loss and is high in corrosion utilizing rate. A process of stubble cleaning cultivation is omitted. On the premises of saving energy and labor input, the high-yield cultivating method can obviously improve unit area yield of the corns and improve quality of corn kernels.

The invention relates to an efficient cultivation method for fine varieties of small watermelons. By taking measures of single-line high-density planting, 'one-main and one-side' pruning, double-curtain covering temperature raising, bacterial manure application and efficacy enhancement, under-film micro-jetting heat insulation, carbon dioxide application, continuous cropping and fruit setting by using the second crop of watermelons, the unimaginable yield of the fine varieties of the small watermelons is improved.

The invention discloses a three-machine-driving double-mass-body subresonance self-synchronizing probability constant thickness screen which is mainly applied to industrial and mining enterprises. Double mass bodies of the three-machine-driving double-mass-body subresonance self-synchronizing probability constant thickness screen are of a novel structure, one mass body drives the other mass body, so that a sensitive subresonance system is formed, and the overall mechanical performance is affected by variation of loading capacity. Compared with a single-mass-body system, a double-mass-body system can achieve the same effect by smaller power. Compared with a traditional single-stage system and a double-stage system, the driving frequency is improved, screening is more complete, and the working efficiency is further improved. Three different coupling vibration exciters have the same rotating direction, so that self-synchronous driving is achieved, and energy saving is achieved. Through application of a probability constant thickness screen theory, probability quick layering, screen blockage preventing and constant thickness high-efficiency screening of materials on a machine body are achieved, the screening efficiency and the yield are improved, and large-scale screening machines are achieved. Three-machine self-synchronizing driving is adopted to improve the uniform distribution of exciting force on a screening machine.

The invention relates to a high-yield and high-quality cultivation method of intimating wild gastrodia elata of the Changbai mountains and belongs to the traditional Chinese medicinal material cultivation field. The method comprises the steps of slag ash compost preparation and gastrodia elata cultivation, wherein the slag ash compost preparation comprises the steps of preparing nutrient solution; adding ten times of water to the nutrient solution and dissolving two to three parts of monopotassium phosphate and four to five parts of potato starch in the solution; and blending the nutrient solution with slag ash till water content of the slag ash reaches to 40-50% to obtain the slag ash compost for use. The usage of the slag ash not only does not reduce yield, but also enables the technique to be popularized in a larger area, and waste can be turned into wealth and environment is protected. Germination bacterium is used for being inoculated on leaves to enable the contact area and the contact chance between seeds and the germination bacterium to be increased, and therefore the germination rate is increased, and usage amount of the germination bacterium is reduced. The usage of the nutrient solution greatly increases per unit area yield of the gastrodia elata, benefits of growers are increased, and large-area popularization is possible. Plastic cloth is used for insulation of sources of plant diseases and insect pests and preventing the gastrodia elata from being polluted by pesticide.

The invention discloses a comprehensive technology for agricultural planting and breeding, and particularly relates to a method for three-dimensional planting and breeding of agricultural products including two types of plants and one type of animal, mainly referring to a three-in-one method for three-dimensional planting and breeding of luffa, cress and crabs so as to achieve high economic benefits for high-tech agricultural planting and breeding. The method for three-dimensional planting and breeding of agricultural products like luffa, cress and crabs realizes the three-in-one three-dimensional planting and breeding of the agricultural products like luffa, cress and crabs including two types of plants, namely, luffa and cress, and one type of crustacean, namely, crabs through the building of a crab pool and a cress field, the planting and breeding of luffa and cress, and the breeding and disease prevention of the crabs. The agricultural products planted and bred by the method have low cost, high yield and high benefit, the quality of the agricultural products is greatly improved, the yield and benefit are doubled, more than ten thousand yuan per mu yield a year is realized, and the method has significant promotional value.

The invention discloses a foliage spraying preparation for promoting fruit setting and fruit swelling and enhancing crop stress resistance. The preparation comprises the ingredients including fulvic acid, DA-6, 2,4-D sodium salt, alpha-pimacol, gibberellin, zeatin, dimethyl sulfoxide, butylcellosolve, sodium tetraborate, zinc sulfate, ferrous sulfate, molybdenum sulfate and magnesium sulfate. After the preparation is sprayed, nutrient substances are rapidly transferred from blade surfaces and are gathered at the plant reproduction active part, and the center endogenous hormones level of fruits is improved; the cell division is promoted, the cell size is amplified, the fruit swelling is accelerated, the chloroplast development and the chlorophyll formation are promoted, the photosynthetic efficiency of leaves is improved, and the unit area yield is increased; the flowing of nutrient substances to female flowers is enhanced, the fruit development speed is accelerated, the uniform fruit development is controlled, the deformity is reduced, the fruit surface is kept fresh, bright and smooth, and the commodity rate is obviously improved; and the immunological competence of plants are excited, the resistance is improved, the occurrence of the pest and disease damage is reduced, the senescence is delayed, and the picking period and the fruit shelf period are prolonged.

The invention relates to a cultivation method of teasel root, comprising reasonable land selection, land preparation, seedling breeding, transplanting and field management, wherein the transplanting is carried out by selecting seedlings which meet certain properties. The cultivation method is obtained through tests and researches of seedling breeding means test, density test, fertilizer test and seedling test, can ensure about 1,000-1,400kg of yield per mu of fresh roots and tubers of medicinal parts of the teasel root which is cultivated for two years, improves by about 10-20% compared with the reported highest yield per unit area, can greatly improve the yield per unit area, increases the economic revenue and is of significance to guide and promote the industrialization development of the teasel root; meanwhile, the cultivation method has strong comprehensiveness, simple and standard operation and easy popularization and application.

The invention relates to a flue-cured tobacco cultivation method resisting spring drought. The method comprises the steps that variety distribution is reasonably planned; ditching and ridging are carried out, and a two-row concave ridge which is 200-240cm in width and 20-25cm in height is implemented; for transplantation, seedlings are transplanted early in good time, transplantation is generally finished during the period from the end of March to the middle ten days of April, the method of a well cellar with the diameter of 8-9cm and the depth of 16-20cm is adopted, and a shovel is utilized for marking out a concave furrow which is 8-10cm in width and 2-3cm in depth on the ridge, so that the well cellar is dug easily, and water is prevented from being wasted; fertilizer is applied according to the equal nitrogen principle, and 30-50% of organic nitrogenous fertilizer is additionally applied to soil for the second time; film mulching is carried out, a film is uniformly compacted through soil in a line-shaped mode, and a gap between the surface of the soil and the film is 0.5-1cm. The method simple and easy to implement is adopted for carrying out flue-cured tobacco cultivation, harm to growth and development of flue-cured tobaccos due to the drought can be reduced, an effective yield increase way is provided for tobacco-growing areas suffering from the drought, the output value is increased, and the economic benefit is increased.

The invention discloses organic fertilizer which is special for aloe saponaria. The organic fertilizer is characterized by being prepared from the following raw materials in parts by weight: 35 to 45parts of sheep manure, 30 to 40 parts of cow dung, 20 to 30 parts of crop straws, 5 to 12 parts of bran, 40 to 55 parts of Chinese herbal medicine slag, 7 to 15 parts of soybean pulp, 8 to 10 parts ofbone meal, 20 to 30 parts of tung bran, 5 of 8 parts of vermiculite and 2 to 3 parts of a microbial fermentation agent. The organic fertilizer has rich raw materials, is scientific in proportioning and has comprehensive nutritional elements; foul smells caused by the sheep manure and the cow dung are eliminated; macromolecular substances are decomposed to release nutritional elements, so that required nutritional substances are supplied to the aloe saponaria; the fertilizer effect is fast and durable, and development of roots, stems and leaves can be promoted; the yield in a unit area is increased, and the disease resistance is enhanced; the insect pest incidence rate is reduced by 16 percent; soil hardening is relieved, absorption and utilization of the nutritional elements are facilitated, and yield and income are increased; all the raw materials are wastes, so that the environment is protected; and the source is wide, and the cost is reduced.

The invention relates to a method for breeding rice field eels at high density in flowing water under controlled-temperature condition, which belongs to the technical field of fishery science application, and is characterized in that: a flowing water culture pool is built in a fully-closed greenhouse, and strong rice field eel fry are selected; fry are added according to a density of 5 to 6kg / m<2>; the fed feed is the mixture of commercial rice field eel compound feed and fresh silver carp flesh; the daily additive amount of feed is 4 to 6 percent based on the weight of the rice field eels; and micro flowing water is kept in the flowing water culture pool, the flow rate is kept between 0.05 and 0.10m<3> / h, and the water temperature of the flowing water culture pool is kept between 25 and 28 DEG C. In the invention, the large-scale soilless flowing water culture pool is built, an in-greenhouse controlled-temperature culture mode has the advantages of fresh culture water with rich dissolved oxygen, high culture density, and high feeding drive and growth speed and few diseases of the rice field eels and is an industrial culture mode; and compared with the prior pool net cage culture mode, the culture mode has higher per unit area yield and greater economic benefit.

The invention belongs to the technical field of crop cultivation, and particularly relates to a composite substrate cultivation nutrient solution of tomato, rock wool and coco coir. The composite substrate cultivation nutrient solution of tomato, rock wool and coco coir is characterized by being respectively prepared into a nutrient solution for an early stage of the bloom, a nutrient solution for 1-3 spike flower stages of the tomato, a nutrient solution for 4-5 spike flower stages of the tomato, a nutrient solution for 6-10 spike flower stages of the tomato, and a nutrient solution for 11-30 spike flower stages of the tomato according to different growth stages of the tomato. By adopting the nutrient solution disclosed by the invention, compared with the formula of a contrast nutrient solution, the tomato plant is robust, developed in root and upright in fruit; the yield per unit area is relatively higher than 3.5kg / m<2> and can be up to 33.6kgm<2>; the incidence of navel rot is relatively reduced by 10%; the upright degree of the fruit is high; the occupancy rate of the first-class goods fruit is relatively improved by 5%.

The invention relates to a method for cultivating corn in saline-alkali soil. The method includes: broad irrigating the saline-alkali soil in the middle of March with the irrigation amount of 60-100m<3> each mu, airing for 1-1.5 months to allow earth surface to be dried enough for entering, applying 1000-1500kg of miscellaneous manure or 50-55kg of composite fertilizer to each mu, performing rotary tillage once to twice to mix the soil and the fertilizer, raking to preserve soil moisture, and levelling soil surface; processing with seed coating before sowing corn, adding pesticide first during germicide and pesticide seed dressing, piling and stuffing for 3-6 hours, then adding germicide, and sowing immediately after seed dressing, wherein the seed coating comprises actinomycin, bacillus subtilis, azospirillum, fulvic acid, carry powder, indole acetic acid, trace elements, alpha-pimacol growth regulator, EDTA-2Na chelating agent, humic acid and turf.

A lotus root triple-cropping cultivation technique includes the steps of A, seed selection, B, field selection, C, soil preparation and base fertilizer applying, D, sowing, E, field management, F, harvest and seed reserving for planting and the like. According to the lotus root triple-cropping cultivation technique, early-maturing variety selection, spring lotus root and summer lotus root planting during a specific time, sowing quantity, cultivation density and fertilizing amount increasing and other measures are adopted, so that based on double cropping, lotus root triple-cropping cultivation can be achieved, that is, a person can plant and harvest the lotus roots three times in one year in the same field, a traditional agricultural production farming mode is changed, the agricultural production resources are fully utilized, the multiple-cropping index is increased, the yield production per unit area is increased greatly, benefits are improved greatly, product supply is enriched, the continuous growing market demands are met, the development of the relevant sidelines are promoted, and the sustainability development of the lotus root industry is promoted by returning lotus leaves to the field and repairing fertility soil fertility.

A device for cultivating and maintaining aquatic crustaceans and the method for the same are provided, whereby aquatic crustaceans are cultured in a culture tank having at least one effective resting and / or hiding area that provides visual only or both visual and tactile sensations for aquatic crustaceans. The present invention creates effective resting and / or hiding areas by utilizing the sensitivity of aquatic crustaceans to physical environment, thereby allowing aquatic crustaceans to live within confined spaces in high densities without cannibalizing those fall outside the effective resting and / or hiding areas (the non-effective habitat areas). The device of the present invention can cultivate and maintain aquatic crustaceans successfully in shallow waters and a plurality of which may be vertically incorporated into a multi-layered culture system to bring about higher culture and maintenance densities per unit floor area.

The invention provides a spring thin skin melon grafting seedling raising method. The absorbing ability of a grafted seedling root system can be improved, the survival rate of grafted seedlings is improved, the uniformity and evenness of the grafted seedlings are guaranteed, and the mechanical operation of commercial seedlings is facilitated. The method mainly comprises the steps of variety selecting, sowing and seedling raising, grafting, grafted seedling managing and the like, wherein the melon variety is selected from moderate sugar I or abundant sugar I or Huang Zi Jin Yu, and the stock is selected from garden stock I or melon free stock or early maturing new tosa or black seed pumpkin. The double-root-cutting grafting method is adopted in the grafting step. In the seedling raising process, the pest control needs to conform to the principle of giving priority to the agricultural control, ecological control, physical control and biological control and complementing the chemical control.

The invention belongs to the technical field of biotechnology and genetic engineering, and provides a gene LBA5 for regulating and controlling a lateral branch angle, growth habit and plant type of apeanut, and application thereof. A major gene LBA5 for controlling the lateral branch angle, growth habit and plant type of the peanut is located and cloned in the peanut, and comprises two homologousgenes LBA5b and LBA5a and promoters thereof; genetic improvement of an included angle between a lateral branch and a main stem of the peanut can be achieved through selection of gene allelic variation via hybridization, backcross and the like; the functions or expression quantity of the gene in a creeping variety peanut can be regulated so that the included angle between the lateral branch and the main stem of the peanut is regulated; and thus, the two homologous genes LBA5b and LBA5a and the promoters thereof of the gene LBA5 can be applied to the genetic improvement and genetic engineeringimprovement of the lateral branch angle, growth habit and plant type of the peanut, even other crops.

The invention discloses a nutritional and healthcare yam beverage and a preparation method. 1000 parts of yam beverage is prepared from the following raw materials in parts by weight: 25-60 parts of yam, 2-50 parts of pear, 20-80 parts of tea polyphenol, 683-901 parts of water, 15-40 parts of chrysanthemum, 1-7 parts of stabilizer, 16-65 parts of sweetening agent and 2-15 parts of sour agent. The production method comprises the steps as follows: preprocessing the raw materials; pulping; mixing; carrying out enzyme reaction; blending; homogenizing; filling; sterilizing; and checking. The yam beverage is sour, sweet, tasty, unique in flavor, rich in nutrition and rich in theaflavin, and has the effects of lowering blood fat and preventing cardiovascular and cerebrovascular diseases.

The invention discloses a pure breeding method for soft-shelled turtles. Soft-shelled turtle fries, soft-shelled turtles cultured in an outdoor storage pond, soft-shelled turtles cultured in a factory greenhouse and fertilized eggs of the soft-shelled turtles are purified, rejuvenated and selected for many times by multiple steps, and meanwhile, each culture condition is controlled; the soft-shelled turtles are multi-generationally bred and cyclically selected. According to the method, a temperature and periodical humidity combination control method is adopted for an artificial incubation process of the fertilized eggs, the purity of second-generation soft-shell turtle generations purely bred by the method reaches more than 98 percent, the purity of third-generation soft-shell turtle generations purely bred by the method is higher than 99.5 percent, and the shape similarity, the uniformity, the resilience, the growth speed and the yield per unit of soft-shelled turtle individuals are remarkably improved.

The invention relates to a cultivation model of three-row peanuts in a large ridge and intercropped corn in furrows, which is a novel scientific planting technology, changes the traditional planting method and simultaneously plants two kinds of plants with high and short stalks. The cultivation model of the three-row peanuts in the large ridge and the intercropped corn in the furrows comprises the following steps of planting peanuts in a ridge table, changing the original two ridges to one ridge, planting three rows of the peanuts in the ridge, and planting corn in the furrows. According to the cultivation model of the three-row peanuts in the large ridge and the intercropped corn in the furrows, the border effect of the corn is remarkable, and each corn is planted on the border so as to facilitate the crop rotation and the irrigation; complete stalks or high stubbles of the corn after the autumn can be reserved in the field to be utilized as wind curtains for stopping and slowing down the wind, so that the soil loss is released, meanwhile the soil organic matters are increased and the soil is fertilized; when the two kinds of plants are planted in a matching manner, the corn can keep out the wind and the cold, shade and prevent the drought for the peanuts; the root system of the corn is well developed and enjoys water and fertilizers, and after being planted in the furrows, the corn can fully absorb the rainwater in the furrows after raining and the lost fertilizer of a shallow surface layer, so that the growth of the corn is facilitated; the corn is planted in separate furrows, so that the ventilation effect is good, and the pest and disease damage is effectively prevented from occurring.

The invention relates to a greenhouse fruit tree root restriction planting method; after a fruit tree is colonized in a greenhouse, the growth of the root system of the fruit tree is restricted in a area smaller than the natural growing area of the root through a physical isolation method; a round of tiles are inserted into the soil around the fruit tree to restrict the horizontal growth area of the root system; the fruit tree can be also transplanted to a flower pot which restricts the horizontal growth area and the downward growth area of the root system. The method controls the growth of the tree by root restriction, which is good for balancing nutrient growth and reproductive growth, so that fewer abnormal branches and more blossom buds grow, so as to improve the fruit yield in unit area and obviously improve the fruit flavor and the storage performance; the method is mainly applicable in the planting of cherry and other deciduous fruit trees in the greenhouse.

The invention discloses a formula for producing a compound microbial fertilizer by use of algae and a preparation method. The formula is characterized by comprising 20% of algae dry powder, 5% of zymocyte liquid, 2% of auxiliary, 3% of sucrose and 70% of clean water, and the components are mixed and fermented into liquid; and a preparation method of the algae dry powder comprises the following steps of: dehydrating the algae floating slag, sterilizing and grinding into algae dry powder. By sufficiently utilizing the algae floating slag, environmental protection is facilitated, resource reuse is realized, waste is turned into wealth, and the preparation technology is simplified; superfine algae powder is fermented to prepare liquid, the solubility is high, the fertilizer is easily absorbed by plant, and the output of unit area is increased; since the pH value is 5.5-8.5, improvement of the soil structure is facilitated; and by applying efficient algae leaf fertilizer, the stress resistance of fruits and vegetables is enhanced, the quality of the fruits and vegetables is improved, and agricultural production is facilitated.

The invention discloses application of an SPL18 gene in enhancing plant yield. The SPL18 gene is derived from corn, rice, sorghum, wheat, barley, rye, millet, soybean, rape or sunflower. For the first time, the invention provides a method for enhancing grain number per spike or / and grain weight by promoting spike branching by using the SPL18 gene. The SPL gene is overexpressed in the crop, thereby effectively promoting spike branching, enhancing the grain number per spike or / and grain weight by 3% or above, and increasing the yield by 5% or above. The technique can effectively enhance the individual yield and yield per unit area, thereby enhancing the grain productivity and providing a new idea for national grain safety.