49 results about "Astragalus sinuatus" patented technology

A complex microorganism rhzomorph modifier for saline-alkali soil is characterized by comprising, by weight, 25%-35% of farmland soil, 5%-10% of active functional bacteria, 5%-15% of mineral powder, 25%-30% of organic fertilizer, 15%-20% of inorganic fertilizer and the balance of water. All the components constitute 100% in percentage. The active functional bacteria comprises bacillus megatherium, Paenibacillus kribbensis, Bacillus laterosporus, rhizobium astragali and paecilomyces lilacinus. The mineral powder is the mixture comprising one or more of peat, vermiculite, montmorillonite, zeolite, calcium carbonate, expanded perlite. The fineness of the mineral powder is equal or lower than 200 meshes. The organic fertilizer comprises thoroughly decomposed manure fertilizer, rapeseed cake fertilizer and straw fertilizer. The weight ratio among manure fertilizer, rapeseed cake fertilizer and straw fertilizer is 5.5-7.5:2.5-3.5:0.5-1.5.

The invention discloses an astragalus smicus / straw organic fertilizer and a preparation method thereof. The preparation method includes the steps of taking astragalus smicus at the full-blooming stage and crop straw (preferably rice straw) as raw materials, properly dewatering the astragalus smicus and then grinding the same into pieces with length ranging from 1cm to 5cm, uniformly mixing the ground pieces with chopped crop straw according to the proportion (2.0-4.5) : 1 by fresh weight, inoculating 0-4.0% of organic material decomposing agent by dry weight of mixture, and then carrying out aerobic composting and fermenting by conventional methods. The aerobic composting and fermenting process can be controlled within 25 days, the organic matter content of the fertilizer is equal to or higher than 70%, the NPK total nutrient content is equal to or higher than 5.5%, and the germination index is equal to or higher than 105.0%. Therefore, the organic fertilizer not only has functions as conventional organic fertilizers and but also can be used as a seedling substrate substituting for the 40% turf.

The invention discloses a method for repairing a cadmium-polluted rice field by intercropping sedum alfredii hance and astragalus sinicus. The sedum alfredii hance and the astragalus sinicus are planted in an idle rice field in winter, so that effective utilization of land resources and photo-thermal resources is realized, and idle land in the slack winter season and resource waste are avoided while soil of the low-concentration cadmium-polluted rice field is repaired; and the astragalus sinicus can be used as organic green manure; and the sedum alfredii hance and the astragalus sinicus are intercropped, so that cadmium in the soil is effectively removed, and therefore, post-cropping rice absorbs less cadmium.

The invention provides an astragalus sinicus LHY gene and application thereof. The LHY gene of astragalus sinicus and a sequence of a protein encoded by the LHY gene are shown in SEQ ID NO: 1 and 2. The LHY gene is cloned from the astragalus sinicus for the first time, and the LHY gene is verified to have a function of regulating and controlling plant flowering, in particular, delaying plant flowering, in arabidopsis thaliana through an agrobacterium-mediated genetic transformation method. The LHY transgenic arabidopsis thaliana shows early bolting and early flowering, bolting days are 18.36 days later than wild type, and flowering days are 20.72 days later than wild type. This indicates that LHY gene of astragalus sinicus is closely related to flowering, and has a function of regulating flowering time. The gene is applied to plant property improvement, and has good application prospect. The LHY gene and the encoded protein thereof provide valuable resources for cultivating new plant varieties.

The invention relates to the technical field of oilseed rape planting, in particular to a selenium-rich oilseed rape planting method. The selenium-rich oilseed rape planting method comprises the steps that soil preparation is carried out and a base fertilizer is applied; rape seeds are soaked; the treated rape seeds are sown, and after sowing, the rape seeds are covered with nutrient soil which is prepared by fermenting astragalus sinicus and humic acid and compounding the fermented rape seeds with plant ash; topdressing is carried out, specifically, urea and monopotassium phosphate are topdressed in a 3-4 leaf stage of rape seedlings; a selenium-rich foliar fertilizer is uniformly sprayed once in the early stage of the bud and bolting stage of the oilseed rape, and the selenium-rich foliar fertilizer is prepared from the following raw material components in parts by weight: 2-4 parts of sodium selenite, 8-12 parts of chitosan, 6-8 parts of citric acid, 2-4 parts of r-aminobutyric acid, 3-5 parts of L-calcium aspartate, 12-18 parts of potassium chloride, 3-5 parts of erythritol and 200-300 parts of water; selenium-enriched foliar fertilizer is sprayed once in the flowering stage and the initial stage of seed setting correspondingly; and harvesting is carried out. According to the selenium-rich oilseed rape planting method, oilseed rape growth can be promoted, absorption of oilseed rape to selenium can be improved, and therefore, the selenium content of rapeseeds is increased; and meanwhile, the lodging resistance of the oilseed rape can be enhanced, and the yield of the rapeseeds is increased.

The invention discloses a teal breeding method through rice-duck co-culture. The method includes: selecting a structural parcel with staggered layers at corners as a rice-duck co-culture area, applying organic base fertilizer, deeply ploughing, drawing water to nourish a field, plant-breeding elodea nuttallii, building duck houses at positions of the staggered layers, planting astragalus sinicus,alfalfa and typha angustifolia before seedling transplanting in the rice-duck co-culture area, screwing into soil after plants survive, selecting ducks small in size as breed ducks after seedling transplanting, putting the ducks into the rice-duck co-culture area in the middle of June, feeding different food materials according to different growing periods of the ducks, increasing feed feeding amount in late August, starting to withdraw the ducks, performing centralized breeding after withdrawing is completed, and re-stocking the ducks into the rice field for fattening after rice is harvestedto obtain commodity ducks. The rice field is fully utilized in the process of duck breeding to generate greater economic benefit, ecological mutually complementary and beneficial environment is built,duck breeding cost can be reduced effectively, and duck meat quality is improved.

The invention discloses a saline-alkali soil improvement biological method. The method comprises the steps of (1) fertilizing and flattening saline-alkali soil in that year, and making high and low ridges at intervals, wherein the high and low ridges are 1.5-2 m in width and the high ridge is higher than the low ridge by about 20-40 cm; (2) after irrigation in April to May of that year, planting alfalfa in the high ridge, and planting suaeda glauca in the low ridge; (3) by the end of October in that year, harvesting the alfalfa for 2-3 crops, and leaving stem bottoms and roots, and in the endof October in that year, harvesting the suaeda glauca; (4) performing mixed seeding of astragalus smicus and rattail fescue in the low ridge of the harvested suaeda glauca; (5) performing soil turningand flattening in April of next year, turning aboveground vegetations to be underground, applying white rot fungi, humic acid fertilizer and calcium superphosphate before soil turning and flattening,performing shallow irrigation on the surface layer after soil turning and flattening, and performing ridging and ridge filming; and (6) planting cotton on the ridges in May of next year. The overwintering green manure crop such as the alfalfa is used for soil moisture conservation of the saline-alkali soil in winter while the green manure crop is turned to be underground for use as organic fertilizer in spring.

The invention discloses a kiwi fruit low-yield orchard soil improvement method. The kiwi fruit low-yield orchard soil improvement method comprises the following steps of digging a circle of annular fertilization ditch at the position 0.8-1.0 m away from a kiwi fruit trunk, obliquely arranging the bottom surface of the fertilization ditch, enabling the depth of an inner side ditch to be slightly higher than a breathing root of a fruit tree, enabling the depth of an outer side ditch to be 5 cm higher than the depth of the inner side ditch, and enabling the width of the ditch to be 30-40 cm; applying a layer of astragalus sinicus powder with the thickness of 2 cm into the fertilization ditch, and backfilling planting soil with the thickness of 2 cm; inserting a plurality of chicken manure rods into the backfilled planting soil and the inner side surface of the fertilization ditch; laying a layer of L-shaped degradable water-absorbing fiber woven mesh, wherein the degradable water-absorbing fiber woven mesh is arranged on the chicken manure rods in a sleeving manner; and applying a layer of orchard waste powder with the thickness of 2 cm, conducting filling and leveling up with planting soil, and applying glycan polypeptide biological potassium. According to the kiwi fruit low-yield orchard soil improvement method, the granular structure of soil can be improved, nutrient elements are activated, the utilization rate of soil nutrients and fertilizers is improved, the nutrient absorption of the fruit tree roots is effectively promoted, and the growth of the fruit trees is promoted, so that the fruit yield and quality of a kiwi fruit low-yield orchard can be remarkably improved.

The invention discloses a method for reducing the amount and increasing the efficiency of chemical fertilizer in a paddy field. Specifically, the method comprises the steps: spreading a mixture of Astragalus sinicus seeds with calcium superphosphate evenly in the paddy field before rice harvest, crushing straw, covering the paddy field during rice harvest, performing ditching in the surrounding area in time so as to avoid autumn rain, plowing the field together with rice stalks of a previous season so as to return the rice stalks to the field at the flowering period of Astragalus sinicus, performing soaking for a period of time, and planting rice. For the current problems of general abandonment of paddy fields or rice-wheat paddy-upland rotation areas and poor cold resistance of green manure of paddy fields in southwestern regions in winter, the cultivation technique is provided; and according to the technique, cold resistance is achieved through stalk mulching, rice growth is promoted through green manure, meanwhile investment of chemical nitrogen fertilizer for rice planting is reduced, and pollution reduction and rice income increase are achieved.

The invention discloses a harvester for astragalus sinicus seed collection and straw smashing and returning. The harvester comprises a machine body, an engine, an operation table, a transmission system, a harvesting assembly, a conveying assembly, a cleaning assembly, a threshing assembly, an air outlet assembly, a crawler belt assembly and a tightness adjusting assembly, and the engine, the operation table, the transmission system, the harvesting assembly, the conveying assembly, the cleaning assembly, the threshing assembly, the air outlet assembly, the crawler belt assembly and the tightness adjusting assembly are all arranged on the machine body. Compared with the prior art, the working procedures of cutting and dividing, threshing and separating, cleaning and straw smashing and returning can be achieved, the working efficiency is high, movably-connected material separating plates are arranged on the two sides of a cleaning bin, the air volume can be adjusted according to needs, and therefore the bin entering rate of astragalus sinicus seeds is guaranteed; and furthermore, a tightness adjusting device is arranged so as to meet the working requirements in different terrain environments, a good protection effect can be achieved on the caterpillar band, and the caterpillar band can keep good road holding force.

The invention belongs to the technical field of aquaculture, relates to powder used for preventing branchiomycosis of tilapia and further relates to a preparation method of the powder used for preventing branchiomycosis of tilapia. The powder used for preventing branchiomycosis of tilapia is prepared from, by mass, 32-40 parts of honeysuckle, 25-31 parts of acorus calamus, 25-31 parts of agastache rugosa, 24-31 parts of setaria viridis, 22-30 parts of astragalus sinicus, 21-27 parts of purslane, 20-27 parts of euphorbia helioscopia, 20-27 parts of abutilon, 18-26 parts of caltrop, 18-26 parts of herba violae, 19-25 parts of gallnut, 17-25 parts of alangium platanifolium, 12-20 parts of rhizoma cyperi, 11-19 parts of thorn apples, 9-17 parts of lithospermum and the like. The powder used for preventing branchiomycosis of tilapia has good prevention and treatment effects on branchiomycosis of tilapia.

The invention relates to the technical field of agriculture, in particular to an amphibious fallow method for farmland. The method comprises the following steps of 1) farmland reconstruction, specifically, a circular ditch is arranged around the farmland, a water body is arranged in the circular ditch, and the slope ratio of the circular ditch is 1: 1-1: 3; the width of the circular ditch is 2-5m; and the depth of the circular ditch is 0.5-1.5 m; 2) water fallow in winter, specifically, astragalus sinicus are sowed in the farmland in October every year; 3) ploughing and deep retting in spring, specifically, the astragalus smicus are deeply ploughed into the field when the astragalus smicus is in a full-bloom stage in spring, and the water level is raised to submerge the farmland; 4, aquatic plant planting, specifically, aquatic plants are planted in the circular ditches in spring or summer; 5) aquatic plant harvesting, specifically, the aquatic plants after vigorous growth are harvested, and transferred the aquatic plants to the farmland for composting; and 6) aquaculture, specifically, after aquatic plants are planted, aquatic animals are put into the water body of the circular ditch. According to the method, two-year fallow is carried out in turn according to the mode, heavy metal such as Cd in the soil can be passivated in situ, and degradation of pesticide residues such as organophosphorus and organochlorine can be achieved; the effect of fallow for 5-6 years internationally is achieved.

The invention discloses a planting method of organic selenium-rich rice. The planting method specifically comprises the following steps: planting astragalus sinicus in selenium-rich soil, and collecting the astragalus sinicus after planting; preparing an organic fertilizer by using the astragalus sinicus; improving the soil of land after the land is planted with the astragalus sinicus; selecting avariety with high selenium absorption capacity for soaking seeds and raising seedlings, then transplanting and planting the seedlings on the land after the soil is improved, and applying the preparedorganic fertilizer; and applying a selenium-rich yield increasing agent in the growth process of the organic selenium-rich rice. The planting method disclosed by the invention is scientific and effective, and can successfully produce rice with uniform and stable selenium content; and moreover, the disclosed overall method is simple to operate, low in technical requirements, low in production costand beneficial to popularization and application.

The invention belongs to the technical field of plant growth regulation, and particularly relates to a plant growth regulator, application and a use method thereof. The plant growth regulator comprises nano silicon dioxide, graphene oxide and salicylic acid, and is applied to astragalus sinicus planting, wherein the root nodule nitrogen fixation capacity and the yield of astragalus sinicus can beimproved by applying the plant growth regulator provided by the invention in the seedling stage and the reviving stage of astragalus sinicus.

The invention relates to a sandy land intercropping method for intercropping forests, grains, grass and vegetables under walnut forests. According to the method, quinoa is planted in spaces among trees of semi-closed walnut forests, by a good windproof effect of the walnut forests and a humidifying and cooling effect on a small environment and in combination with seeding in a proper period, the emergence and seedling protection rate of the quinoa is greatly improved, diseases, pests and lodging of the quinoa are reduced, the yield and quality of the quinoa are improved, and high economic output under the forests is created; astragalus sinicus is planted in the small environment for shading, cooling and humidifying under the walnut forests, so that the benefit of planting under the forestsis further improved, and a fertile land effect is achieved; and turnip (Brassica campestris) is planted after the harvest of the quinoa to make full use of the light and heat resources after the harvest of quinoa and further improve the economic output of plots.

The invention discloses an astragalus sinicus turning and pressing tool. The tool comprises a base plate, front rolling wheels are installed at the front end of the base plate, rear rolling wheels areinstalled at the rear end of the base plate, a motor is installed on the front side of the base plate, the output end of the motor is connected with the front rolling wheels through a gear and a rotating shaft, a front U-shaped frame, a rear U-shaped frame and a power unit mounting frame are mounted on the chassis, and the power unit mounting frame is mounted on the chassis between the front U-shaped frame and the rear U-shaped frame. According to the astragalus sinicus overturning and pressing tool and method, astragalus sinicus can be synchronously overturned and compacted, the astragalus sinicus rotting efficiency and the astragalus sinicus nutrition utilization rate are improved, and work is stable and efficient.

The invention discloses a method for restoring cadmium-polychlorinated biphenyl compound polluted soil by utilizing rotation of astragalus sinicus and sedum plumbizincicola, which comprises the following steps of: ploughing and flattening a polluted farmland, planting the astragalus sinicus in winter for restoring polychlorinated biphenyl in the farmland, and returning the astragalus sinicus as green manure after the astragalus sinicus is harvested to the field; before the second crop of plants are planted, the polluted farmland is divided into a plurality of remediation grids, the total cadmium concentration value and the remediation mode in each remediation grid are determined, and precise remediation of cadmium in the polluted farmland through the sedum plumbizincicola is achieved. The invention provides a mode of crop rotation of astragalus sinicus and sedum plumbizincicola for repairing the compound pollutants in the farmland, and mainly adopts the mode of repairing polychlorinated biphenyl by astragalus sinicus, taking astragalus sinicus as green manure of succeeding plants and accurately repairing cadmium in a gridding manner, so that the repairing cost and the repairing time are greatly reduced; the remediation efficiency of the cadmium-polychlorinated biphenyl specific combined pollution farmland soil is obviously improved.

The invention relates to the technical field of preparation of feedstuff and discloses a method for preparing feedstuff for culturing frogs. The method comprises the following steps: S1: raw materialpreparing; S2: crushing: crushing and mixing buckwheat powder, soybean meal, ground millet, sunflower seed meal, coconut meal, rice bran meal, astragalus sinicus powder, sweet potatoes, shrimp head meal and blood worm meal; S3: steaming: adding water into mixed raw materials, carrying out uniform stirring, carrying out steaming, and carrying out cooling, so as to obtain a material A; and S4: re-crushing: mixing and crushing proteins, casein, meat and bone meal, liver powder, active glutelin, insect meal and beer's yeast powder, and then, carrying out screening, thereby obtaining a material B.According to the method, the feedstuff is simple in preparation, rich in nutritional ingredient and reasonable in matching and meets the nutritional requirements of the frogs, the growth of the frogsis effectively promoted, bacteria in the raw material can be killed, the condition that the health of the feedstuff is affected due to bacterium propagation of mildewy and degenerative substances in the raw materials is prevented, the growth of the frogs is effectively promoted, the immunity of the frogs is improved, and the disease incidence of the frogs is lowered.

The invention discloses a method for regulating and controlling intercropping of sedum plumbizincicola and astragalus sinicus to restore farmland soil compositely polluted by heavy metal and organic pollutants. The method comprises the following steps: firstly, grinding sedum plumbizincicola with a hyperaccumulation effect on Cd, astragalus sinicus with an efficient rhizosphere degradation effect on organic pollutant PCBs, a leaf surface regulating agent abscisic acid with a growth stimulation effect on plants and a rhizobium inoculant with a promotion effect on degradation of PCBs on rhizosphere of astragalus sinicus; sedum plumbizincicola and astragalus sinicus are planted in the soil subjected to combined pollution in a greenhouse, and a pot experiment based on overground leaf surface regulation and underground rhizosphere strengthening remediation plant intercropping is carried out. The method is reasonable in design, simple to operate, economical and feasible, a bioremediation technology capable of improving the phytoremediation efficiency is ground out, and the method has the characteristics of no damage to the physical and chemical properties of the soil and no secondary pollution, can be applied to remediation of the heavy metal-organic pollutant combined contaminated soil, and has good environmental, economic and social benefits.

The invention discloses a method for repairing Cd contaminated soil by intercropping herbs and swamp cabbage. The method can repair Cd contaminated soil through intercropping agronomic measures. The method comprises: intercropping herbs and vegetables in Cd contaminated soil to be repaired, and carrying out normal cultivation management so that the Cd content in harvested vegetables and soil is reduced. The vegetables are swamp cabbages. The herbs are sorghum hybrid sudangrass, sudangrass, pennisetum, ryegrass, indian lettuce, chicory, amaranth, clover, alfalfa or astragalus sinicus. The invention provides the technical scheme for repairing Cd contaminated soil by agronomic measures of intercropping herbs in a swamp cabbage field. The intercropped herb has high biomass and a rapid growth rate, can enrich heavy metals such as Cd and can effectively reduce Cd content of the contaminated soil. The method can provide a basis for synchronous safe production and restoration in the Cd contaminated farmland. The method is environment-friendly and has obvious ecological, economic and social benefits.

The invention belongs to the field of foliar fertilizers, particularly relates to a high-efficiency foliar fertilizer extracted by fermenting pure plants, and aims to solve the problem that the existing foliar fertilizer contains more or less heavy metals and chemical synthetic hormones, and the use of the foliar fertilizer causes certain damage to the quality of crops. The efficient foliar fertilizer comprises the following raw materials in parts by weight: 30-50 parts of paper mulberry leaves, 5-10 parts of astragalus sinicus, 3-7 parts of alfalfa, 2-7 parts of vetch, 1-5 parts of pine needles, 2-6 parts of sweet clover, 3-8 parts of sesbania, 1-5 parts of plant ash, 1-5 parts of spinach, 1-5 parts of cauliflower, 2-6 parts of peanut powder, 5-10 parts of zucchini seeds, 1-5 parts of pumpkin seeds, 5-10 parts of rice bran and 1-5 parts of soybean meal. The foliar fertilizer is a pure plant component and does not contain any hormone or any heavy metal. Effective nutrients of the foliar fertilizer are easier to absorb, nutrients are comprehensive, so that crop quality is improved, crop resistance is enhanced, and high yield is achieved.

The invention relates to a compound nutrition preparation for Astragalus sinicus as well as preparation and application thereof, and aims to solve the technical problem that high yield and stable yield are difficult to obtain due to the lack of targeted growth regulation and control means of Astragalus sinicus at present. The compound nutrition preparation contains effective components such as sodium borate, ammonium molybdate, monopotassium phosphate, paclobutrazol, 6-benzylamino adenine, brassinolide, sodium alginate oligosaccharide and the like. By spraying the compound nutrition preparation in the Astragalus sinicus cultivation process, and a high Astragalus sinicus seed yield and a high biological yield can be obtained. The compound nutrition preparation is low in preparation cost, simple and convenient to apply and stable in effect.

The invention discloses a biological control method for spider mites of solanaceous vegetables, which comprises the following steps: making concave cultivation ridges with the width of 60-75 cm and the height of 20-25 cm, wherein the width of the concave part of each ridge is 15-20 cm, the depth of each concave part is 8-10 cm, and the ridge spacing is 80-90 cm; sowing astragalus sinicus at the protruding parts of the ridges 25-30 days before field planting of the main crops; planting main crops in the concave parts of the ridges; directionally spraying a pepper enzyme diluent on leaf surfaces on the same day after the main crops are planted, and spraying once every 20-30 days; after the pepper enzyme diluent is sprayed for the first time, evenly spreading neoseiulus barkeri on leaves of astragalus sinicus, and releasing 6000-10000 neoseiulus barkeri per mu at a time. By adopting the method disclosed by the invention, the release amount of the neoseiulus barkeri can be reduced to 1 / 6-1 / 4 of the release amount in the prior art, so that the production cost is greatly reduced, the agricultural production safety and the agricultural product quality safety are guaranteed, and the ecological environment is protected.

The invention discloses dust removal equipment for astragalus sinicus seed processing. The dust removal equipment for astragalus sinicus seed processing comprises a dust removal barrel, a motor I, a transmission shaft I, a material lifting barrel, a motor II and a rotating shaft, and is characterized in that the dust removal barrel is arranged on a support, a vertical plate, a charging bin and a bearing I are arranged at the top of the dust removal barrel, and the motor I is arranged on the outer wall of the bottom of the dust removal barrel; and the transmission shaft I is arranged in the dust removal barrel, the material lifting barrel is arranged at the top in the dust removal barrel, the motor II is arranged on the vertical plate, and the rotating shaft vertically penetrates through the bearing I and stretches into the material lifting barrel. According to the invention, the rotating shaft is arranged to be of a hollow structure, a fan II is arranged at the top in the rotating shaft and blows airflow into the rotating shaft, the airflow enters the dust removal barrel through the bottom end of the rotating shaft and blows astragalus sinicus seeds in the dust removal barrel, the airflow amount in the dust removal barrel is increased, dust is rapidly separated from the astragalus sinicus seeds, the dust removal efficiency for the astragalus sinicus seeds is increased, and the dust removal effect for the astragalus sinicus seeds is improved.

The invention discloses a high-yield planting method for cocktail grapefruits. The method comprises the following steps: 1) soil selection and preparation; 2) digging planting holes; (3) expanding holes and improving soil; (4) transplanting seedlings; 5) water and fertilizer management; 6) disease and pest control; 7) pruning branches and tips; 8) flowering period management; 9) fruit period management; and 10) picking fruits. According to the method, the astragalus sinicus is planted among the pomelo trees, the effects of increasing soil fertility, preserving heat and moisture and preventing water and soil loss are achieved, the flowering phase of the astragalus sinicus and the flowering phase of the pomelo trees are consistent, honey liquid sprayed on the pomelo flowers is matched, bees can be attracted to conduct cross pollination on the pomelo flowers, manpower is saved, and the fruit bearing rate is increased. Sufficient moisture and fertilizer are provided for fruit trees in the flowering period and the fruit period, meanwhile, nutrients formed by cutting off part of tree trunk skin and cutting off leaves are transported to tree roots, necessary nutrients are provided for growth and development of fruits, the fruit bearing rate is increased, the fruits are prevented from falling off, and the yield and quality of the grapefruits are improved.

The invention provides a double cropping rice farming method capable of effectively reducing cadmium, which comprises the following steps: 1) field treatment: 15-20 days before seedling transplanting, spreading a specific amount of lime, a cadmium reducing agent and 45% ternary compound fertilizer per mu in a field, and turning over together with astragalus sinicus planted in the field in advance, the cadmium reducing agent is obtained by physically mixing rice straw and lime in proportion and carbonizing the mixture under specific conditions. 2) cultivating early rice: sowing the early rice in March, transplanting the early rice to a field in April, harvesting the early rice in July, applying a base fertilizer in April, then dressing a tillering fertilizer and performing chemical weeding, and dressing a panicle fertilizer in May; and (3) cultivating late rice, sowing the late rice in June, transplanting the late rice to a field in July, harvesting the late rice in October, crushing and returning straws harvested by a machine in early rice to the field, topdressing urea by combining chemical weeding in July, and topdressing 45% ternary compound fertilizer in August. The brand-new cadmium-reducing double cropping rice cultivation method has the advantages of being efficient, durable, easy to operate, low in cost and easy to popularize.

The present invention discloses a grass-growing method in cherry orchards. The grass-growing method in cherry orchards comprises steps of seed selection, weed removal, paspalum notatum sowing, sowing,fertilizing and watering, mowing and renewal, and astragalus sinicus sowing. A compound fertilizer I and a compound fertilizer II containing nutrients and having fermentation functions are prepared,decomposition and utilization of metabolites of herbaceous plants are facilitated, the soil environment is further improved, the soil fertility is greatly improved, and the growth environment of cherries is improved. The compound fertilizer I and compound fertilizer II both containing triacontanol are applied in a process of growing grass in the orchards. The paspalum notatum and astragalus sinicus are cultured in stages, so that the soil is in a grass-growing phase for a long time, the ability of the cherry orchards to prevent drought and waterlogging is improved, the soil fertility of the cherry orchards are also unaffected, the ecological environment of the cherry orchards is enriched, a large number of parasites generate, the number of natural enemies of pests is increased, the spreadof the pests is restricted, and a relatively long-lasting ecosystem in the orchards is formed.

The invention belongs to the technical field of water-logged compost, and particularly relates to an astragalus sinicus returning and fertilizing method and a rice planting method. The astragalus sinicus returning and fertilizing method comprises the step of irrigating a field where astragalus sinicus plants are planted for retting. According to the astragalus sinicus returning and fertilizing method, normal growing astragalus sinicus is not ploughed, turned and pressed, irrigation and water-logged rotting are directly conducted, operation is easy, and overwintering eggs in soil or rice stumps in the last season can be effectively controlled and removed.

The invention belongs to the technical field of resources and environments, and particularly relates to a method for no-tillage remediation of a heavy metal polluted farmland through intercropping pennisetum purpureum and astragalus sinicus. The method comprises the following steps: planting pennisetum purpureum, intercropping astragalus smicus, harvesting and remaining stubbles after the pennisetum purpureum is mature, hoeing the mature astragalus smicus into a plough layer in the next year, and performing secondary repair by utilizing overwintering pennisetum purpureum. The result of the embodiment shows that the annual dry biomass and the cadmium removal amount of the overwintering regenerated pennisetum purpureum can reach 60.60 t / ha and 29.09 g / ha respectively, and the cadmium content in the pennisetum purpureum is lower than the Chinese feed hygienic standard limit value.