136 results about "Cynodon dactylon" patented technology

A method for repairing the damaged ecological systems at a hydro-fluctuation zone and a riparian zone of a reservoir with wire grass relates to an engineering technology of ecological repairing at the hydro-fluctuation zone and riparian zone of the reservoir, which firstly filters to acquire the wire grass that can not only grow in drouthy and poor soil, but also can survive by submerging for 1 to 6 months with a submerging depth of 0 to 40 meters, as well as fast resume to grow after the water level falls as a repairing plant, and plants or transplants the plant to a repairing area after adopting asexual propagation or sexual propagation; then maintains the plant so as to ensure the growth in the next year. The invention can rebuild and resume the ecology at the hydro-fluctuation zone and riparian zone, which has the functions of improving the riverside sight, maintaining water and soil, cutting off the surface source contaminations and improving the water body and quality, stabilizing soil, protecting banks, absorbing contaminations in the water in hydroperiod and fast covering the plant on the bank after the water level falls; thereby reaching the effects of resuming and rebuilding the environment at the hydro-fluctuation zone and riparian zone of large-scale reservoirs; the invention has broad application prospect and excellent environment benefit.

The invention provides a method for quickly planting cynodon dactylon on an ecological concrete slope. The method comprises the following steps of 1 slope surface preparing; 2 lattice frame constructing, wherein multiple lattice frames adjacent to one another are poured and are all backfilled with planting matrixes, the planting matrixes are leveled, tamped and covered with first non-woven fabric; 3 ecological concrete pouring; 4 cynodon dactylon planting, wherein the stolons of cynodon dactylon are sheared into cynodon dactylon stems; 5 curing. According to the method, the cynodon dactylon which is good in stress resistance, resistant to trampling and poor soil and high in recovery capacity is adopted to serve as the planting species, the survival rate is high, and the selected cynodon dactylon is at least two years old; after twenty days, the coverage rate of the cynodon dactylon can reach 80 percent, the cynodon dactylon stems grow well, adventitious roots are grown, axillary buds on the stems begin to grow into branches on the ground, and new stolons begin to tiller; after thirty days, the vegetation coverage rate is more than 95 percent. By adopting the method, vegetation landscapes can be quickly formed, the slope ecology environment can be improved, and slope ecology protection can be achieved.

The invention relates to an ecological restoration method of a hydro-fluctuation belt. The ecological restoration method comprises the following steps of: firstly prefabricating a concrete module on which Bermuda grass can be planted; planting the Bermuda grass resistant to flooding on the concrete module; flattening and tamping a side slope of the hydro-fluctuation belt, and constructing a reinforced concrete lattice frame; backfilling a planting matrix; and finally constructing and curing concrete blocks of a Bermuda grass lawn so as to form a complete full concrete-covered greened side slope of the hydro-fluctuation belt. The ecological restoration method has the beneficial effects of forming a stable side slope protection structure, preventing the side slope of the hydro-fluctuation belt from being directly washed by water waves, and protecting the soil of the hydro-fluctuation belt against erosion, thus achieving the purpose of conserving water and soil; and meanwhile a complete vegetation-covered landscape is formed, thus improving an ecological environment and achieving a wide application prospect and good environmental, social and economic benefits.

The invention relates to an evergreen mixing lawn consisting of cynodon dactylon and kentucky bluegrass and the planting method of the lawn. The natural characteristics of the cold-season kentucky bluegrass and the warm-season cynodon dactylon are utilized, the characteristics that the kentucky bluegrass has underground rhizomes and the cynodon dactylon has the growth habit of growing surface runners are utilized, and the mode that the seeds of the kentucky bluegrass are reseeded on a cynodon dactylon lawn or the rhizomes of the cynodon dactylon are inserted on a kentucky bluegrass lawn to build the mixing lawn. The two plants forming the mixing lawn can naturally circulate, the cynodon dactylon mainly grows and the kentucky bluegrass rests as underground rhizomes in summer, auxiliary buds of the rhizomes of the kentucky bluegrass grow upwards to get through the surface runners of the cynodon dactylon to form plants to take place of the cynodon dactylon before the cynodon dactylon turns yellow in august, the kentucky bluegrass grows in winter and the cynodon dactylon rests as surface runners, the surface runners of the cynodon dactylon germinate in the next spring to gradually take place of the kentucky bluegrass, and thereby that the lawn is evergreen is realized.

The present invention relates to a composition useful as prophylactic and / or therapeutic agent for the management of viral and bacterial diseases in aquatic animals, said composition containing effective amount of extract obtained from the plants Lantena camera, Aegle marmelos, Ocimum sanctum, Mimosa pudica, Cynodon dactylon, Curcuma longa, and Allium sativum, optionally in combination with a pharmaceutically acceptable carrier, diluents or excipients.

The invention relates to an ecological slope protection method facilitating slope plant growth. The ecological slope protection method facilitating slope plant growth comprises the steps that non-woven fabrics are buried in soil on the top of a soil slope, grass planting grids are laid on the non-woven fabrics, the grass planting grids are backfilled with garden soil, and Bermuda grass seeds are sowed; on the soil slope, concaved ditches are formed at intervals in the direction parallel to the slope bottom side, water leading channels are formed at intervals in the direction perpendicular to the slope bottom side, and the water leading channels are filled with non-woven fabric bags; and on the soil slope, the non-woven fabrics are laid, a latticed fabric is arranged on the non-woven fabrics in a covering manner, the garden soil is scattered to the latticed fabric, and shrub seeds and herbaceous flower seeds are sowed in the garden soil at intervals. According to the ecological slope protection method facilitating slope plant growth, rainwater can be retained on the slope soil to the maximum extent, soil humidity keeping time is relatively long, a favorable environment is provided for sprouting and growing of plants, the seeds sowed through the ecological slope protection method are high in emergence rate, relatively quick in sprouting and tidy in growth degree, and formation ofa plant landscape is facilitated.

The invention discloses a method for overseeding ryegrass in cynodon dactylon. The method comprises the steps of firstly, deeply plowing a target turf, and sowing cynodon dactylon; then, deeply shearing the cynodon dactylon on the turf in autumn and winter, and scarifying the surface layer of the turf; and finally, sowing ryegrass, and carrying out trimming, fertilizing, watering and other operations with different requirements on the cynodon dactylon and the ryegrass many times according to different times and states in the period of time. Through overseeding the ryegrass in the cynodon dactylon, the two crops can synergically grow to ensure that the same turf remains green throughout the year, so that the favorable ornamental value, relatively high field application ratio and relatively high economic benefit are brought.

The invention discloses a method for repairing a reservoir hydro-fluctuation belt by use of bermuda grass. The method comprises steps of firstly investigating and screening plants on the reservoir hydro-fluctuation belt of the Baihua lake so as to screen out plants capable of growing on the reservoir hydro-fluctuation belt; then carrying out indoor and outdoor simulation experiments for the bermuda grass so as to detect adaptability of the bermuda grass to the reservoir hydro-fluctuation belt, and determining that the bermuda grass can be planted on the reservoir hydro-fluctuation belt; and at last, cultivating the bermuda grass on the reservoir hydro-fluctuation belt and performing ecological repairing on the reservoir hydro-fluctuation belt. In this way, via systematical research, it is found that the bermuda grass is capable of growing on the reservoir hydro-fluctuation belt which has been soaked in water and exposed to water for a long time, and with certain biomass, the bermuda grass can largely protect landscape ecology of the reservoir hydro-fluctuation belt and preventing water and soil loss.

The invention relates to the technical field of ecological environment protection and control, in particular to application of cynodon dactylon to vegetation construction and ecological control in large-depth water flooded drawdown areas of reservoirs and riverbanks. The vertical flooding depth h in the large-depth water flooded drawdown areas of reservoirs and riverbanks is more than 10m and not more than 30m. Tests prove that cynodon dactylon can survive after undergoing long-time and large-depth flooding and can grow well after recession and outcrop, can well adapt to the drawdown area environment alternating between land and water, can ensure the drawdown areas to have surviving vegetation all the year round, has strong capability of immobilizing the soils in the drawdown areas and capability of reducing washing of runoff, can reduce soil losses in the drawdown areas, simultaneously can serve as an excellent barrier belt between land and water at the reservoir bank, greatly improves the ecological environment quality in the drawdown areas and has good application prospect, wherein the longest continuous flooding period is 8 months and the largest vertical flooding depth is 30m.

The invention discloses a method for remedying cadmium-contaminated soil through turfgrass and microorganism combination, and relates to a heavy metal-contaminated soil treatment technology. The method comprises the following steps: (1) screening cadmium-resistant bermuda grasses so as to obtain the bermuda grasses with strong cadmium resistance; (2) collecting rhizosphere soil of the bermuda grasses in a contaminated area; (3) screening cadmium-resistant microorganisms so as to obtain the microorganisms with the strongest cadmium resistance, which are fungi-aspergillus aculeatus; (4) preparing microorganism remedying matrixes; and (5) carrying out turfgrass and microorganism combined remediation. The method has the advantages that the dominant plants, namely the bermuda grasses in the cadmium-contaminated area are used as cadmium-resistant plant screening sources and have strong adaptability to the soil environments in the contaminated area; the cadmium-resistant fungi-aspergillus aculeatus is derived from the rhizosphere soil of the bermuda grasses in the cadmium-contaminated area, is well compatible with the cadmium-resistant bermuda grasses and has strong adaptability to the soil environments in the contaminated area; the microorganism remedying matrixes can be used for ensuring the nutrient supply of microorganism growth, enhancing the operability of applying the microorganisms in soil and improving soil environments, and the waste is effectively utilized; the method is low in cost and simple and convenient to operate.

The invention discloses a method for greening a limestone slope. According to the method for greening the limestone slope, the slope is refilled with soil removed from other places, then bermuda grass, alchornea trewioides and pigeon peas are planted for greening the slope, and the method has the advantages that the success rate of greening is high, operation is easy and convenient, popularization and application are easy, and the greening effect is good. One year after the plants are planted, the plants can cover the limestone slope of a highway in mountain areas, the ecological and landscape effects of greening can be achieved rapidly, not only noise but also flying dust can be absorbed, and special care is not needed in the later period. The method can be widely applied to greening of the slope of the highway in the mountain areas, can also be used for greening limestone mountains where stone is taken, and has very good application prospects.

The invention discloses a method for improving drought resistance of paddy rice, alfalfa and Bermuda grass through drought induction treatment. The method comprises the following steps: A, planting: fertilizing, deeply ploughing and leveling a seedling land, fertilizing base fertilizers, preparing the land before sowing, sterilizing soil with ferrous sulfate, and leveling a bed surface; growing seedlings of paddy rice: firstly culturing seedlings in a certain farmland; cleaning alfalfa seeds, carrying out coating treatment on the seeds before sowing, ventilating, transmitting light and carrying out field management; carrying out lawn planting on Bermuda grass with two methods of seed sowing and rhizome propagation, and sowing seeds in late spring and early summer; B, seedling management: watering in seedling early period; and C, drought induction treatment: no watering paddy rice, alfalfa and Bermuda grass at any period of growth stage continuously so as to induce drought stress, and watering according to normal condition in other periods. The method is easy to implement, simple and convenient to operate and quick to take effect, and drought resistance of plants can be improved in short period of time, so that the crop yield and herbage yield during seasonal drought and at drought areas are increased.

The invention discloses an SRAP (Sequence Related Amplified Polymorphism) molecular marker primer for identifying common cynodon dactylon and cynodon arcuatus. The SRAP molecular marker prime is selected from one of primer combinations of E1M4, E1M5, E1M6, E1M7, E1M8, E2M3, E2M4, E2M5, E2M6, E2M7, E3M1, E3M3, E3M4, E3M6, E3M9, E4M1, E4M3, E4M4, E4M5, E4M6, E5M9, E6M1, E6M2, E6M3, E6M4, E6M7, E6M8, E6M9, E7M2, E7M3, E7M4, E7M5, E7M7 and E10M9, wherein various primers are as shown in sequence. The SRAP molecular marker primer disclosed by the invention is used for identifying the cynodon richard; an obtained band is clear, good in polymorphism and high in repeatability; in addition, the SRAP molecular marker primer is simple in operation and wide in application prospect.

The invention discloses a method for improving drought resistance of paddy rice, alfalfa and Bermuda grass through low-salt induction treatment. The method comprises the following steps: A, planting: fertilizing, deeply ploughing and leveling a seedling land, fertilizing base fertilizers, preparing the land before sowing, sterilizing soil with ferrous sulfate, and leveling a bed surface; growing seedlings of paddy rice: firstly culturing seedlings in a certain farmland; cleaning alfalfa seeds, carrying out coating treatment on the seeds before sowing, ventilating, transmitting light and carrying out field management; carrying out lawn planting on Bermuda grass with two methods of seed sowing and rhizome propagation, and sowing seeds in late spring and early summer; B, seedling management: watering in seedling early period; and C, low-salt induction treatment: continuously pouring sodium chloride solution with low concentration for a given period on paddy rice, alfalfa and Bermuda grass seedlings in growth stage. The method is easy to implement, simple and convenient to operate and quick to take effect, the drought resistance of plants is improved during a short period, the crop yield during seasonal drought or at arid areas is improved, and the ecological benefits and economic benefits of lawn vegetation conservation and water and soil conservation are achieved.

The invention belongs to the technical field of turf grass breeding, in particular to a breeding method of a novel variety of dwarf bermudagrass. The breeding method is characterized in that a bermudagrass seed is mutated through radiation and screened in a field, molecule marking and isozyme identification are adopted to assist the selection and the breeding, and the novel variety of the dwarf bermudagrass required by the market is bred. The radiation source of the invention is a universal 60Co-gamma ray, the dose thereof is 200Gy to 500Gy, and the dose rate is 1.0Gy / min. The bred novel variety of the bermudagrass has significant dwarf characteristics and good stay green, and the turf grown from the new variety of the bred dwarf bermudagrass is essentially free of trimming during a growth period.

The invention discloses a method for using industrial and agricultural waste residue to improve phosphogypsum for vegetation recovery, which includes: according to physical and chemical characteristics of phosphogypsum and comparison of the phosphogypsum with soil constituents, using sludge generated from sewage treatment plants, coal ash generated from power plants, and red mud generated from aluminum manufacturers to improve the phosphogypsum; successfully planting lawn grass; and according to the requirements of grass grown, covering the pure phosphogypsum with an improved substrate layer 10-14cm thick, and sowing seeds on the substrate layer according to the seeding amount of common lawn grass. Grass seeds suitable for growing include seeds of tall fescue, broadleaf paspalum, alfalfa, ryegrass, trifolium repens, Bermuda grass and the like. Turfs of tall fescue, Agrostis, Bermuda grass and the like can grow normally on the improved substrate. According to the principle of 'waste control by waste', the phosphogypsum is subjected to soilless vegetation recovery, so that the cost of vegetation recovery by phosphogypsum is lowered greatly, and great economic benefit and environmental benefit are achieved.

The invention relates to an improving agent for repairing contaminated soil and a modifying method. The improving agent is obtained through mixing of arbitrary one or more of 1-3 parts of calcium magnesium phosphate fertilizer, 0.5-7 parts of lime and 1.5-12 parts of modified zeolite. The improving agent is mixed with soil, passivation is performed, and planting of Bermuda grass on the soil and other improving methods are adopted to achieve the purpose of contaminated soil repairing. A chemical technology is combined with a plant technology, not only can the soil structure be protected so as to the antimony-contaminated soil in the case of low cost, but also the environment can be beautified.

The invention discloses a method for interplanting ryegrass in Cynodon dactylon in central China. The method comprises the following steps: treatment of two grasses in the interplanting process of ryegrass, and growth process control of the ryegrass in a translating period after the reviving and growth the next year. The method is used to make the ryegrass have good growth advantages and rapidly form a strong and beautiful lawn and avoid the dry yellow phenomenon of the lawn, can promote the reviving and growth of the ryegrass and inhibit the growth of the ryegrass in order to accelerate the translating of the interplanted ryegrass lawn, and protects the growth of original ryegrass, so the method is suitable for the central China to make the values of the lawn reach the optimum level.

The invention discloses a preparation method of biochar by adaptable vegetation in Three Gorges and an application thereof. The biochar of the adaptable vegetation in the water-level-fluctuating zonesof branches of Three Gorges reservoir region is adopted as a research object, the adaptable vegetation (cynodon dactylon) is utilized as a core material for preparing the biochar, the influence of the modified biochar of the adaptable vegetation on the nitrogen adsorbing effect is researched, the char prepared by adopting the cynodon dactylon as the material and the modified char have higher adsorption for ammonium and nitrogen in solution respectively, which is possibly related to carbon content and cation exchange capacity; the biochar has the characteristics of a developed porous structure, a large surface area, more surface negative charges and a high charge density and the like, so that the ion exchange capacity and the nutrient adsorbing effect of the biochar can be enhanced; inorganic ions in water, soil or deposits can be adsorbed and immobilized by the biochar, and the biochar has stronger adsorbing capacity to NH4+-N ions.

The invention relates to the technical field of water treatment and in particular relates to a heavy metal adsorbent. The heavy metal adsorbent is prepared from the following raw materials in parts by weight: wood charcoal, artificial zeolite, baking soda, sodium carbonate, a molecular sieve, coconut shells, graphene and plant extract. The plant extract is prepared from rorippa globosa, herba commelinae, rhizoma acori tatarinowii and cynodon dactylon according to the weight part ratio of 1 to 0.6 to 0.5 to 0.3. According to the heavy metal adsorbent, the rorippa globosa, the herba commelinae, the rhizoma acori tatarinowii and the cynodon dactylon in the plant extract are over-accumulated plants so that the heavy metal adsorbent can be used for effectively adsorbing heavy metal elements including Cd, As, Ni and Cu, is safe and has no toxin and does not cause secondary pollution; metallothionein in the heavy metal adsorbent can be used for further improving a metal storage capability. The raw materials are cheap and easy to obtain, the production cost is low and the adsorption effect is good.

The invention relates to bermuda grass 'Tifway' dehydrin-L, an encoding gene and a probe thereof. The dehydrin-L is a protein represented as (a) or (b), wherein (a) is a protein composed of the amino acid sequence represented as the Seq ID No.4 and (b) is a protein which is a derivative from the protein (a), is obtained through substitution, deficiency or addition of one or more amino acids and has the bermuda grass 'Tifway' dehydrin-L activity. The invention also provides a nucleic acid sequence for encoding the proteins and the probe for detecting the nucleic acid. In the invention, adversity stress physiological response, such as drought resistance and the like, of the bermuda grass 'Tifway' are regulated through genetic engineering technologies, thereby improving the drought resistance of turfgrass. The invention provides theoretical evidence for molecular breeding and has a huge application value.

An herbal formulation for the modulation of immune system of HIV infected patients and a process of preparation thereof are provided. The process includes (i) preparing a hydromethanolic extract of at least one plant selected from Hippophae rhamnoides, Convolvulus pluricaulis, Withania somnifera, Ocimum sanctum, and Cynodon dactylon at 80-90° C., maintaining the pH of the solution between 6-7; (ii) separating the active compound chromatographically; and (iii) subjecting the active compounds to the step of molecular characterization.

The invention discloses a traditional Chinese medicine composite for treating kidney stone. The traditional Chinese medicine composite comprises the following compositions in parts by weight: 100 parts of foxnut, 100 parts of lotus seed, 100 parts of cowherb seed, 45-55 parts of spora lygodii, 45-55 parts of christina loosestrife herb, 45-55 parts of pericarpium citri reticulatae, 45-55 parts of bighead atractylodes rhizome, 25-30 parts of liquorice, 28-32 parts of artemisia capillaries, 14-16 parts of gardenia, 14-16 parts of giant knot weed, 28-32 parts of endothelium corneum gigeriae galli, 18-22 parts of pangolin, 18-22 parts of immature bitter orange, 18-22 parts of radix curcumae, 14-16 parts of pericarpium citri reticulatae viride, 14-16 parts of walnut, 14-16 parts of rheum officinale, 4-6 parts of costus root, 14-16 parts of bunge cherry seed, 14-16 parts of Chinese lantern-plant, 14-16 parts of corn stigma, 4-6 parts of fructus amomi, 14-16 parts of scorched hawthorn fruit, 9-11 parts of golden cypress, 9-11 parts of bermuda grass and 4-6 parts of talcum powder. Each crude drug of the traditional Chinese medicine composite disclosed by the invention is coherent on with another so that the pesticide effect is played at the utmost; the traditional Chinese medicine composite has kidney-tonifying and calculus-removing effects and has the functions of inducing diuresis and increasing peristalsis of kidney and ureter as well as dissolving calculus; and the traditional Chinese medicine composite has good and rapid curative effect in treating renal calculus without any toxic and side effects and has the function of preventing renal calculus.

The invention discloses gene CdERF1 of Cynodon dactylon significantly induced by low temperature and application thereof and belongs to the field of plant gene engineering. The gene CdERF1 has an ORF(open reading frame) sequence shown as in SEQ ID NO. 1 and an encoded amino acid sequence shown as in SEQ ID NO. 2. Application of the gene CdERF1 refers to: inferring that the gene CdERF1 may involvein plant stress resistance by analyzing different stress treatment expression modes of the gene CdERF1 in Cynodon dactylon; B, converting to Arabidopsis thaliana by Agrobacterium-mediated transformation, and studying the anti-stress function of the gene CdERF1 in transgenic Arabidopsis thaliana so that basis is laid for the application of the gene CdERF1 in other plants; C, applying the gene CdERF1 to plant transformation to improve plant cold tolerance. The gene CdERF1 herein is a transcription factor gene that may specifically regulate cold resistance improvement for plants; the gene CdERF1is originated from plants and causes low ambient influence; transgenic Arabidopsis thaliana having high tolerance to low temperature stress is attained.

The invention discloses a method and device for constructing Cynodon dactylon core germplasms with morphological markers. The method comprises the following steps: using original germplasms of Cynodondactylon as test materials, detecting 11 morphological traits through morphological marking, and selecting the best strategy to construct Cynodon dactylon core germplasms from 5 levels, including 7 kinds of total sampling proportion, 3 kinds of sampling methods, 5 kinds of clustering methods, 3 kinds of genetic distance, and 3 kinds of in-group sampling proportion. According to the embodiments ofthe invention, the constructed Cynodon dactylon core germplasms can effectively retain the phenotype genetic diversity, phenotypic trait correlation and population phenotype structure of the originalgermplasms and can be used as representative samples of a whole resource.

The invention relates to a process for planting greening saline grass with functional nutrient soil. The process comprises the specific steps of: (1) functional nutrient soil laying, (2) artificial seedbed leveling, (3) watering and wetting, (4) artificial sowing, (5) sunshade shed covering, (6) thorough watering, (7) seedling-stage management, (8) lawn-forming management, (9) completion acceptance, and (10) daily maintenance. In the step (1), the functional nutrient soil is laid to a thickness of 5cm. in the step (4), grass seeds are artificially sowed on the land paved with the functional nutrient soil, wherein the grass seeds are mixed seeds of seashore paspalum and cynodon dactylon. According to the invention, the adopted greening saline grass has the advantages of deep growth, high drought resistance, high salinity resistance, high soil adaptability, high pest and disease resistance, and low requirement on water quality. With the 5cm of functional nutrient soil, soil can be improved, such that grass roots can grow deeper, and a cover coat can be firmer. Therefore, water and soil erosion can be prevented. Also, transportation cost is reduced, and water needed by irrigation is reduced.

The invention belongs to the field of engineering technique for ecological greening town in subtropical zones. The employed combined lawn strains are Ling zhi tall fescue, hound tall fescue, beck tall fescue, Jiao zhan tall fescue, midnight English grass, De bi perennial ryegrass and common Bermuda grass, sowing seeds according to the proportion of tall fescue strains 50%, English grass strains 20%, perennial ryegrass strains 10% and Bermuda grass 20%, for two working times and even sowing, through scientific caring and management, in areas of normal climate and management such as Nan jing, the lawn yearly green period is above 320 days, the oversummering and overwintering rate is above 95%, the structure is stable, there are little weeds, the lawn is temperature-resistant, cold-resistant and trample-resistant, and the cost of lawn forming and caring is low, suitable for forming lawns in the green place, square and sportsground.

The invention discloses a rapid and effective ecological reconstruction method of an artificial forest land, and relates to the field of forest land reconstruction. The method comprises the steps of soil layer transformation, ecological reconstruction and forest protection for strengthening. The ecological reconstruction comprises sequentially planting pioneer plants, trees, shrubs, herbaceous plants and moss ground covers; the pioneer plants are one or more of ryegrass, pennisetum, bidens bipinnata, cynodon dactylon and humulus scandens. On the basis of soil improvement, on the basis of ecological reconstruction, the pioneer plants are used for soil improvement, leguminous plants are used for fertilize soil, target tree species and other tree species are mixed and combined with ground vegetation, layers are rich, soil surface is kept highly covered, water and soil are kept, seedling planting survival is good, growth potential is the best, and the optimal choice of the invention is achieved. In the rest, pioneer plants and leguminous plants do not exist, only target trees are planted, the ecological conditions are proof, and effects are not good.

The invention discloses a feed for sows at latter half of gestation, and a preparation method of the feed. The feed is prepared from the following raw materials in parts by weight: 180-200 parts of corn, 140-160 parts of soybeans, 100-130 parts of wheat bran, 80-120 parts of wheat flour, 60-70 parts of locusts powder, 50-60 parts of dry loach powder, 70-80 parts of bermuda grass, 50-70 parts of chloris virgata, 20-30 parts of castor leaves, 50-70 parts of pork bone soup, 10-12 parts of bean curd, 8-10 parts of tomatoes, 0.3-1 part of vinegar, 0.2-0.5 part of salt, 0.3-0.5 part of ground pepper, 3-4 parts of starch, 2-3 parts of cottonseed oil, 20-30 parts of duck blood, 5-8 parts of cauliflower, 8-10 parts of snake gourd, 1-2 parts of coriander leaves, 3-5 parts of orchid petals, 2-3 parts of caulis bambusae in taeniam, 1-2 parts of radix scutellariae, 1-2 parts of ramie root, 1-2 parts of white sugar, 5-8 parts of fishbone meal, 20-30 parts of oat powder, 10-15 parts of phagostimulant and right amount of water. The feed is well-designed and prepared according to the special nutritional requirements of the sows at latter half of gestation; the feed is scientific in formula, rich in nutrition, multiple in components, safe and reliable, and is capable of providing comprehensive and rich nutritional ingredients for the sows at latter half of gestation, so that the health of the sows can be promoted, the healthy growth of embryos can be promoted, rapid weight gain is realized, and the birth weight of piglets and the economic benefit of a farmer are increased to the utmost extent.