143results about How to "Increased biomass" patented technology

The invention belongs to the technical field of livestock breeding and specifically relates to an ecological method of breeding chicken by planting grass under trees. The method includes that a fine forage grass breed which is shade-tolerant, trampling-resistant, strong in stress resistance and applicable to being planted in the forest is selected, and a forest land for grazing the chicken is modified to form a grassland under the trees for grazing the chicken; a contour grass and shrub zone in a stocking land is used for planting the grass, a chicken house is built in the middle of the grassland under the trees for grazing the chicken, zone division is performed for rotation grazing, and zones are separated by biological fences; and Chinese herbal plants are sowed in rotation grazing zones so that the grazed chicken can freely ingest the plants. A scientific evidence is provided for obvious economic benefits and ecological benefits which are achieved by means of rapid development of domestic fowls and effective ecological rehabilitation, wherein the domestic fowls of Hetian chicken and the like are applicable to stocking in forestland. By means of the model for breeding the chicken, high economic benefits are created, parts of the economic benefits are used for investing development of ecological chicken breeding model, and the created economic benefits and the development of ecological chicken breeding model are combined for creating better benefits, and accordingly, a virtuous cycle is achieved, ecological balance is kept, and the sustainable development is effectively achieved.

The invention discloses a method for rapidly improving plough-layer soil of newly cultivated barren lands in southern hilly and mountainous regions, belonging to the technical field of soil improvement. The method comprises the steps of cultivating the barren lands for preparation; digging latticed fertilizing and planting ditches; preparing and applying mixtures including a fertilizer and a water-retaining agent; sowing seeds of ryegrass for the first time, cradling and covering; sowing seeds of ryegrass next year, cradling and covering; and the like. The method disclosed by the invention is definite in step and simple and feasible in process, after two years continuous integrated improvement, the soil bulk density is reduced, the void fraction is increased, the level of nutritive substances such as organic matters, total nitrogen, quick-acting nitrogen, phosphorus and potassium is improved obviously, the plough-layer soil can reach a medium fertility level, and normal agricultural utilization can be carried out. The method can be popularized and applied in newly cultivated barren lands in southern hilly and mountainous regions of China.

The invention relates to a special controlled release fertilizer for wheat and a preparation method thereof and belongs to the technical field of sustained release fertilizer and controlled release fertilizer. According to the rule of the fertilizer requirement of the wheat, the invention remixes 5 percent, 6 percent and 7 percent thermoplastic resin coated urea, sulfur coated urea, potassium chloride complex fertilizer, the potassium chloride, diammonium phosphate and zinc sulfate exactly to form the special controlled release fertilizer for wheat. The nutrient release rule of the controlled release fertilizer is in accordance with the nutrition absorption rule of the wheat, and the cost of the controlled release fertilizer is reduced; no more fertilization is required after one time of the fertilization of the controlled release fertilizer before the wheat is seeded, which reduces the labor intensity of the farmer and the labor cost.

The invention discloses a method for utilizing chenopdium album L to restore the soil polluted by high-concentration cesium. The method comprises the steps of flattening and refining the polluted soil, applying 2200-3000kg of thoroughly decomposed excreta of people and animals for each 666.7M<2>, and taking the thoroughly decomposed excreta of people and animals as base fertilizers, planting the chenopdium album L in March to August every year, sowing 100-150g of seeds for each 666.7M<2>, blending fine soils, and sowing uniformly; then keeping 50%-70% of water holding capacity in soil field so as to promote germination and seedling; using a herbicide to removing other plants before the sowing in bare places so as to avoid overshadowing; when the height of the seedling is 50-60cm, harvesting the overground parts, and processing the overground parts intensively; and cleaning the harvesting fields, sowing again, managing and harvesting the chenopdium album L according to the method, thus harvesting the chenopdium album L for three times in one year. According to the method, the operation is simple, the management is convenient, the cost is low and the restoring effect is good.

The invention belongs to the technical field of pesticides and in particular to relates to a multifunctional medicinal plant seed coating agent and preparation and coating methods thereof. The multifunctional medicinal plant seed coating agent comprises active ingredients, auxiliary agents and water. The multifunctional medicinal plant seed coating agent comprises the following raw materials in percentage by mass: the active ingredients: 6-18% of a bactericide, 5-15% of an insecticide, 3-6% of a balancing fertilizer and 0.03-0.04% of a growth regulator; 11-19% of the auxiliary agents; and the balance of water, totaling 100%. According to the technical scheme, the invention also provides the preparation method of the coating agent. The method is simple and feasible and easy to be industrially popularized.

The invention belongs to the technical field of plant molecular breeding and biology, and discloses application of a PLD (phospholipase D) epsilon gene in increasing nitrogen nutrition effective utilization and seed yield of crops. The nucleotide sequence of the PLD epsilon gene is shown as SEQ ID NO:1, or has a similarity more than or equal to 60 percent as the nucleotide sequence shown as SEQ ID NO:1. The invention also discloses a method for increasing nitrogen nutrition effective utilization and seed yield of rape. Tests prove that growth and occurrence of lateral roots of rape can be promoted due to overexpression of AtPLD epsilon either in nitrogen starvation or nitrogen sufficiency condition, increase of rape leaf tissue cell growth and biological yield can be reinforced, absorption transportation and assimilation metabolism processes of rape plants can be promoted, which are particularly indicated in that the expression quantities of genes NTR1.1 and NTR2.1 related to overexpressed plant N transportation are remarkably higher than that of a wild type, and the nitrogen absorption rate is remarkably higher than that of the wild type.

The invention discloses a forage hedgerow soil conservation planting technology, comprising the following steps of: tillage and land preparation, seeding and seedling, and plantation. The technology has the following advantages that: the forage hedgerow can prominently reduce sediment loss amount and runoff and has good effect of fast controlling water and soil loss; the forage hedgerow promotes value-cost ratio of energy of the entire system and becomes an effective measure to enhance the agricultural efficiency in hilly areas; bean forage hedgerow can offer excellent shelter to ground spider so as to enrich the diversity of spiders in farmland. The technology not only focuses on ecological and social benefits, but can also create economical benefit, in addition, the technology realizes sustainable agricultural development on dry hillside fields, effectually controls water and soil loss of dry hillside farmlands, enriches soil fertility, enhances grain yield and can also produce a certain amount of high-grade forage to further guarantee the supply of partial feed for the development of animal husbandry in agricultural regions.

The invention relates to the field of marine microalgae, in particular to a heterotrophic culture medium used for large-scale cultivation of marine microalgae. The culture medium is prepared from 0.5-1.5 g of nitrate, 2-10 mg of monopotassium phosphate, 2-10 mg of dipotassium phosphate, 0.1-1 mg of ferric citrate, 0.5-2 mg of magnesium sulfate heptahydrate, 0.5-2 mg of calcium chloride dehydrate, 5-20 g of an organic carbon source and 1000 mL of filtered seawater. The nitrate is potassium nitrate or sodium nitrate, and the organic carbon source is glucose or sucrose. The heterotrophic culture medium is widely used for the large-scale cultivation of the marine microalgae, can increase growth velocity of the marine microalgae, shorten the growth cycle of the marine microalgae, increase the biological yield of the marine microalgae, meanwhile sharply reduce the cost of the culture medium, and is an ideal culture medium used for the large-scale cultivation.

The invention provides a breeding method of entire silo corn hybrids. The breeding method comprises the steps of breeding a parent selfing line, isolating spatially, artificially hybridizing, bagging for isolation and selfing for achieving homozygosity; performing test mating on a selfing line A and a selfing line B to obtain a single cross hybrid F1; and finally, carrying out test mating on the single cross hybrid F1 used as a female parent and a third selfing line C used as a male parent to breed the entire silo corn hybrid (three-way cross hybrid). The breeding method adopts three selfing lines to breed the entire silo corn hybrid and opens up a new method for breeding of the silo corn hybrid; the bred three-way cross hybrid has the characteristics of high quality, high biological yield and high seed production, contains more than 10% of crude protein, lower than 45% of neutral detergent fibers and lower than 25% of acid detergent fibers; two selfing lines are subjected to test mating to obtain the single cross hybrid, then the single cross hybrid used as the female parent and another one selfing line used as the male parent are used for seed production, and therefore, the seed production yield is ensured and the seed production cost can be reduced.

The invention discloses an under-forest konjak annual plantation method comprising following steps: (1) forest land selecting; (2)wild konjak ecological environment imitating; (3) forest land reclaiming; (4) konjak cormlet selecting; (5) konjak cormlet disinfecting; (6) sowing; (7) weeding; (8) konjak planted forest land overwintering; (9) harvesting. The method adopts under-forest plantation of konjak to realize the original ecological planting from the forest to the forest, and creates the habitat close to the origin of the konjak, satisfies the requirement on external environment for konjak; the purposes of healthy planting and healthy growth are fulfilled. The method of under-forest plantation of konjak has advantages such as good growth condition, low water content in seed konjak, and safe overwintering in forest land; the konjak can be directly transplanted in field in the second spring, the seed konjak has good quality, low bacterium, and high emergence rate; there is no need to harvest seed konjak in the autumn and to winter indoor, which is labor saving and reduces production processes.

The method of utilizing fuel coal desulfurizing product in improving alkali soil includes first sampling soil; testing and calculating Na2CO3, NaHCO3, Mg(HCO3)2, Na and Mg amount to be increased or decreased and molar CaSO4 amount needed for improvement based on the formulae; calculating the needed desulfurizing product amount according to the desulfurizing product components; and applying the desulfurizing product to the surface of soil and irrigation. Compared with available technology, the present invention has the advantages of fast improving speed and high improving effect.

The invention belongs to the technical field of green manure plowing field-returning and discloses a method for Dongmu No.70 green manure plowing field-returning in a northern cold tobacco growing area. According to the YC/T142-1998 Investigation Methods of Tobacco Agronomic Characters, main agronomic characters of tobacco plants in each field are measured; grading and then statistics of tobacco yields, mean prices, output values and proportions of high, medium and low grade tobacco are carried out according to standard requirements in the GB 2635-1992 Flue-cured Tobacco, and main economic characters are investigated; field survey and sampling are carried out for tobacco in different plots, and C3F tobacco is extracted in processing and delivered to the Tobacco Quality Supervision and Inspection Test Center of the Ministry of Agriculture for testing and assessment; in harvesting of tobacco uppermost leaves is realized by a cutting-ring method, and a relative water content and a volumeweight of soil are measured; and soil organic matters are measured by a potassium dichromate volumetric method-an external heating method, and the content of water soluble chlorine ions is measured bya silver nitrate titration method. The method applies a green manure plowing technology for the tobacco area through green manure variety tests, and provides a theoretical basis for improving soil, fertility and tobacco quality.

The invention belongs to the field of biological control of crop diseases, and provides application of cis-abienol in control of bacterial wilt and application of a tobacco labdanum compound in control of bacterial wilt directed at the problems of unsatisfactory control effect, environmental pollution and food safety in existing crop bacterial wilt control technology. According to the invention, bacterial wilt is controlled by improving the resistance of crops, and compared with currently reported biological source preparations, the labdanum compound has the characteristics of low effective concentration, high control effect, no toxicity, durability and safety.