39 results about "Elymus dahuricus" patented technology

The invention discloses a method for restoring arbuscular mycorrhizal fungi of a vegetative cover in a land with discarded iron tailings of a grassland ecosystem, and relates to the technical field of ecological restoration of vegetative covers in a land with discarded metal tailings. The method for restoring arbuscular mycorrhizal fungi comprises the following steps of: (1) covering earth on iron tailings for 3 to 7 centimeters deep; (2) inoculating arbuscular mycorrhizal fungicides such as Glomus versiforme and the like at the place 0 to 3 centimeters far from the earth; (3) planting plants such as Elymus dahuricus Turcz and the like, harvesting the plants after 60-day to 120-day growth, using the plants which meet a relevant standard as feed, and centralizedly burning and landfilling the plants which do not meet the relevant standard. The method for restoring the arbuscular mycorrhizal fungi has the following advantages that: the adopted arbuscular mycorrhizal fungi symbiose with herbs easily so that the absorption and utilization of nitrogen, phosphorus and potassium are promoted, the absorption or transferring of heavy metals is reduced, the thickness of covering earth is reduced, the growth situation of plants is improved, the planting and growth of plants in iron tailings covered with earth are promoted, the method for restoring the arbuscular mycorrhizal fungi has high success rate of revegetation, simple process and lower cost, and is applicable to management of lands with discarded iron tailings of grassland ecosystems.

The invention discloses a method for planting suaeda salsa at a medium-low-cadmium saline-alkaline land and for extracting plant salt. The method comprises the steps of saline-alkaline land selection, saline-alkaline land improvement, soil cadmium adsorption treatment, and plant salt extraction. According to the soil cadmium adsorption treatment step, amaranthus retroflexus and elymus dahuricus are inter-planted and used for adsorbing cadmium in soil, wherein a preferable inter-planting ratio of amaranthus retroflexus and elymus dahuricus is 4:1, and a planting density is preferably 10*40cm. In the plant salt provided by the invention, cadmium content is reduced to 0.002mg / kg, sodium chloride content is 39%, potassium chloride content is 12%, Mg content is 4%, Ca content is 8%, and Fe content is 750mg / kg. With the method, a problem of excessively high cadmium content in plant salt extracted from suaeda salsa planted in the medium-low-cadmium saline-alkaline land is effectively solved.

The invention discloses a method which adopts pasture to control solanum rostratum, wherein elymus dahuricus is adopted as a plant specie for controlling the solanum rostratum invasion, is planted in the natural grassland ecosystem which is easily invaded by the solanum rostratum, and continuously controls the solanum rostratum invasion for a plurality of years. The elymus dahuricus is the plant specie which quickly grows, grows in the grassland which is preferable for the solanum rostratum to grow and has obvious advantages for struggling for existence, through introducing and planting as well as reasonable configuration and scientific management, the elymus dahuricus can completely ply the role in the ecosystem which is easily invaded and is invaded by solanum rostratum, continuously, and effectively inhibits the quick growing and space occupying invasion of the solanum rostratum in the natural grassland, so a basic guarantee is provided for substituting and controlling exotic invasive species-solanum rostratum and sustainable treating.

The invention discloses a planting method of plateau mine herbaceous plants, comprising the following steps of: preparing soil, seeding, and spraying a nutrient solution, wherein the nutrient solution comprises the following components in proportion: 0.5L of original mixing liquid, 0.5L of water and 100g of water-retaining agent and the original mixing liquid comprises the following components: 1650mg / L of NH4NO3, 1900mg / L of KNO3, 370mg / L of MgSO4 7H2O, 170mg / L of KH2PO4, 440mg / L of CaCl2 2H2O, 0.83mg / L of KI, 6.20mg / L of H3BO3, 22.30mg / L of MnSO4 4H2O, 8.60mg / L of ZnSO4 7H2O, 0.25mg / L of Na2MoO4 2H2O, 0.025mg / L of CuSO4 5H2O, 0.025mg / L of CoCl2 6H2O, 28.70mg / L of FeSO4 7H2O, 37.3mg / L of Na2-EDTA 2H2O, 100 mg / L of inositol, 0.5mg / L of niacin, 0.5mg / L of pyridoxine hydrochloride, 0.1mg / L of thiamine chloride, 2mg / L of glycine and 25g of sucrose; covering soil; and covering mulching film. Through the implementation and the usage of the method, the germination rate and the survival rate and the per-plant tiller number of elymus dahuricus turcz can be greatly increased, therefore, the possibility of recovering vegetation of mines is increased.

The invention relates to the field of plant planting, in particular to a Tibet region elymus dahuricus seed cultivating method. A high-yield and high-quality variety with high ecological adaptability is selected; a parcel which is high in water and fertilizer preserving capacity and good in soil and fertilizer condition and facilitates irrigation and drainage is selected, a single sowing mode is selected for sowing in strip, and sowing can be carried out in late spring, summer and early autumn; top application of urea is carried out on elymus dahuricus grassland growing in the second year at the elongation stage, potassium nitrate is sprayed at the tillering stage and the elongation stage, and proper field management is carried out. The yield of elymus dahuricus seeds in the Tibet one-river-two-tributaries region can be effectively increased.

Elymus nutans is distributed in a large area in China and is one kind of main native herbs in Tibet plateau, and plant resources are abundant. The invention discloses a method for separating 10 flavone and lignin compounds from elymus nutans. The 3 of the 10 compounds are new compounds, and the purity of 8 of the 10 compounds is 95% or above. The compound has multiple physiological effects of liver protection, blood fat reduction, oxidation resistance and the like. In addition, the overground parts of the elymus nutans are utilized, the production cycle is show, less influence is caused on the ecological environment, the high-purity monomeric compound can be quickly prepared, the economic benefits are remarkable, and the method has very important significance on scientific and reasonable development of the elymus nutans resource.

The invention belongs to control methods of the ecological system, and particularly relates to a method for restraining Solanum rostratum from invading the natural ecological system. According to the method, Elymus dahuricus and wheatgrass are reasonably used for restraining the Solanum rostratum, and invasion of the Solanum rostratum is effectively controlled through the modes of deep ploughing, fine raking, leveling, compacting after sowing, irrigating and after manuring. According to the method, through reasonable matching of the Elymus dahuricus and the wheatgrass and matched scientific planting management, the Elymus dahuricus and the wheatgrass compete with the Solanum rostratum through the growth advantages of the Elymus dahuricus and the wheatgrass, the invasion behavior of the Solanum rostratum in a natural grassland is continuously and effectively restrained, and a guarantee is provided for replacing and preventing alien invasive species such as the Solanum rostratum.

The invention belongs to the technical field of agriculture and particularly relates to a compound pelletized grass seed production and processing process and application. Four grass seeds including Festuca Sinensis Keng cv. Qinghai, Poa Crymophila cv. Qinghai, Elymus dahuricus and Poa pratensisvat.anceps Gaud.cv. Qinghai are adopted as materials, and by experiments of seed selection, single-typeseed pelletizing, two-type seed compound pelletizing and the like, the compound pelletized grass seed production and processing process controllable in seed particle size and weight and ratios of different seeds is constructed and hopefully available for large-scale production and application. Compound pellets are obtained by processing of Festuca Sinensis Keng cv. Qinghai and Poa Crymophila cv. Qinghai, then compound pellets are obtained by processing of Elymus dahuricus and Poa pratensisvat.anceps Gaud.cv. Qinghai, and accordingly the two types of compound pelletized seeds can be close in size, weight and the like as far as possible. Therefore, in practical application, the two types of compound pelletized seeds can be mixed according to a certain ratio and used for grassland reseeding to guarantee a mixed seeding ratio of the four types of seeds.

The invention discloses a method for multi-module afforestation of an arid sunny-slope mountain and belongs to the technical field of afforestation of the arid sunny-slope mountain. According to the method, in view of different geographic conditions of arid sunny-slope mountains, 3 kinds of different modules are provided, different species of trees are planted in different modules, the species oftrees comprise needle-leaved arbor species, broad-leaved arbor species, shrub species, Liana plants and grass species; the needle-leaved arbor species comprise pinus tabuliformis, Larix principis-rupprechtii, Mongolian scotch pine and platycladus orientalis; the broad-leaved arbor species comprise Mongolian oak, Betula japonica, dwarf elm, prunus armeniaca and rhus typhina; the shrub species comprise amorpha fruticosa, hippophae rhamnoides, Yellow willow and caragana microphylla; the Liana plants comprise Euphorbia humifusa and vitis amurensis; and the grass species comprise Agropyron cristatum, Hungarian brome, elymus dahuricus and artemisia sieversiana. According to the modular afforestation method disclosed by the invention, a batched implanting method is employed in space, the survivalof shrubs is prompted by using a shading effect of mature seedlings of arbors, thus, the variety and quantity of vegetative covers of the ground surface are increased, local microclimates can be rapidly formed in the modules, the content of plants and microbes is increased, revegetation is accelerated, ecological environments of the mountains are improved in a relatively short time, and the moisture content of soil and the survival rate of afforestation are effectively increased.

The invention discloses a method for planting elymus dahuricus in an alpine region. The method for planting the elymus dahuricus in the alpine region comprises the steps of seed treatment, planting soil treatment, seed sowing, fertilizer application, field management and harvesting. Elymus dahuricus seeds are treated by potentilla chinensis juice, diethyl aminoethyl hexanoate and a nitragin root protecting agent, the potentilla chinensis juice contains active substances which promote rapid germination and rooting of the elymus dahuricus, and rapid growth of the elymus dahuricus is facilitated;the potentilla chinensis juice contains a small amount of abscisic acid, and thus, cold resistance of the elymus dahuricus is improved favorably; the diethyl aminoethyl hexanoate can sterilize, and auxin can further be provided for seed germination; and by nitragin, nitrogen in air can be fixed, and a large number of nitrogen fertilizers are provided for host plants. By the method for planting the elymus dahuricus in the alpine region, the problem of low grass yield of the Tibet region is solved, by treatment of the seeds of the elymus dahuricus, treatment of planting soil, seed sowing, fertilizer application and field management, the yield and cold resistance of the elymus dahuricus are improved effectively, then the yield of the elymus dahuricus is increased, and the economic benefit isgood.

The invention relates to a method for rapid germination of Elymus dahuricus Turcz. seeds and belongs to the technical field of the cultivation of Elymus dahuricus Turcz. The method comprises selecting high-quality Elymus dahuricus Turcz. seeds prior to planting Elymus dahuricus Turcz., spraying the seeds with water, then uniformly mixing the seeds and plant ash according to a ratio of 100kg of seeds to 5-8kg of plant ash and a mass ratio of plant ash to water of 1: (0.29-0.31), carrying out sowing in line or hole sowing at sowing depth of 4-6cm, then covering seed surfaces with soul until the seeds are completely covered with soil, applying enough water to the soil, and immediately, covering the soil with an agricultural plastic mulching film after watering. The method saves time, is economic and simple, is easy to operate and solves the problem that the existing sowing pretreatment method easily produces pesticide damage, destroys the soil environment, easily damages seed germ and inhibits seed survival.

The invention discloses an expanded feed for mud fishes. The expanded feed comprises the following raw materials in parts by weight: 100-130 parts of corn flour, 10-13 parts of artemia dry powder, 10-14 parts of hawthorn fruit pulp, 5-7 parts of peasecods, 2-4 parts of elymus dahuricus, 7-10 parts of salvinia natans, 3-5 parts of orange peels, 10-15 parts of tea slag, 30-40 parts of seeds of Job's tears, 1-2 parts of kernels of red dates, 3-5 parts of soy sauce residue, 2-4 parts of sweet potato leaves, 3-4 parts of celery, 1-2 parts of zornia gibbosa, 1-2 parts of lotus grass, 2-4 parts of bitter gourd roots, 4-6 parts of water mustard, 1-2 parts of baking powder, 10-20 parts of low-gluten flour and 2-4 parts of a phagostimulant. According to the expanded feed disclosed by the invention, the digestive absorption of nutrient substances can be effectively promoted, the utilization rates of energy and protein are greatly increased, the cultivation cost is lowered, the economic benefit is improved, the emission of hazardous substances is reduced, the stability of the water quality is kept, a good water body environment is ensured, and the healthy growth of the mud fishes is promoted.

The invention discloses a method for restoring severely-degraded grassland vegetation in Tibet by using dormant oats. The method comprises the following steps: before 10 days of rainy season, wild oat seeds are uniformly mixed with elymus dahuricus seeds in each mu; no-tillage direct reseeding is carried out on degraded grassland by using a no-tillage planter, wherein along with increase of rainfall in the rainy season, the heights of plants can reach 50 to 90cm, and the vegetation coverage of an annual reseeding plot reaches 80 percent or above; part of wild oats can reproduce a certain amount of seeds in the same year, and can produce not lower than 30g of wild oat seeds in the second year, and subsequently, the yield of the wild oat seeds can be stabilized at 40kg per mu; by using dormancy, mobility and seed holding property of the wild oats, the wild oat seeds which are newly produced on the plot all enter soil; wild oat seeds reproduced by the plot in the second year and the later year further enter the soil, and further emerge, grow and reproduce new wild oat seeds. According to the method disclosed by the invention, restoration and rebuilding of the degraded grassland can be ensured.

The invention provides a screening and planting method for grassland pasture germplasm resources, and relates to the field of screening and planting methods for grassland forage germplasm resources. The screening method for the grassland pasture germplasm resources comprises screening of pasture, important plant germplasm resources such as leymus chinensis, wheatgrass, bromegrass, elymus dahuricus, medicago ruthenica and lespedeza in the grassland are collected, stored and evaluated, and excellent legumes which are suitable for artificial grassland establishment under arid and alpine region environmental conditions or have competitive power on reseeding grassland are screened. Pasture seeds and technical methods adapting to the arid and alpine regions in our province are mainly researched, and the regions also have the characteristics of the arid and cold regions in China, so that the method can form competitive advantages with similar researches in China; By implementing the method, technologies such as pasture variety cultivation, pasture high-quality and high-yield cultivation and the like in arid and alpine regions in the province are internationally connected, and particularly, the method has strong advantages in the aspects of parent selection and matching and dry farming cultivation technologies.

The invention discloses genuine and fake grass walking lawn which comprises a support layer and a planting layer. The planting layer comprises a root system planting substrate layer and grass plantinggrids, the root system planting substrate layer is laid on the upper portion of the support layer, the grass planting grids are positioned in the root system planting substrate layer and are sunken in the root system planting substrate layer by 3-5 cm, an artificial grass blanket with planting gaps is further laid on a surface of the root system planting substrate layer, gramineous downward propagation type forage grass and lawn grass are planted in the planting gaps, and the gramineous downward propagation type forage grass accounts for 10-30% of mixed grass and includes a type of leymus chinensis, elymus dahuricus, elymus sibiricus, bromus inermis, eragrostis curvula, festuca ovina and imperata cylindrica or a combination of a plurality of types of the leymus chinensis, the elymus dahuricus, the elymus sibiricus, the bromus inermis, the eragrostis curvula, the festuca ovina and the imperata cylindrica. The genuine and fake grass walking lawn has the advantages that the grass planting grids are arranged in the root system planting substrate layer of the genuine and fake grass walking lawn, accordingly, the compressive resistance of the root system planting substrate layer can bereinforced, and soil hardening of soil can be prevented in treading procedures; the artificial grass blanket is further arranged on the root system planting substrate layer, the mixed grass is plantedon the artificial grass blanket, and accordingly the treading resistance of the genuine and fake grass walking lawn can be improved.

The invention relates to the technical field of degraded grassland recovery, and particularly discloses a sowing method for promoting stable recovery of Qinghai-Tibet plateau vegetation and a sowing device. The method comprises the following steps: (1) preparing a plurality of seeds of elymus nutans, aconitum gymnandrum, dandelion, pedicularis przewalskii, pedicularis semitorta, picris hieracioides, potentilla potaninii, potentilla fragarioides and gentianella acuta, placing the seeds in a constant-temperature refrigerator for refrigeration treatment for a period of time; (2) sowing at the beginning of a growing season, removing sundries on the ground before sowing, and turning over the ground for reclamation; (3) sowing the seeds in a sowing mode that the dicotyledonous plant sowing density is 140-160 seed / 12 square meters and the total sowing density is 1100-1300 seed / 12 square meters, and then covering thin soil with the seeds; and (4) flatting the ground. Compared with the single planting of elymus nutans, the whole sowing method provided by the invention has the advantages that the monocotyledonous elymus nutans is matched with the dicotyledonous mixed sowing mode, the community stability is higher, and the diversity of animals and plants is higher.

The invention belongs to the technical field of medicinal chemistry, and particularly relates to application of a diarylpentane compound in stellera chamaejasme roots in herbicides. The diarylpentanecompound disclosed by the invention is a compound 3-Methoxy-1, 5-diphemylpentan-1-one, the compound has an obvious inhibition effect on the growth of elymus nutans roots, and the compound can be usedas an effective component of herbicides. Results of embodiments show that the diarylpentane compound provided by the invention has an obvious inhibition effect on growth of elymus nutans roots when the concentration is 10-100 [mu] g / mL.

The invention belongs to control methods of the ecological system, and particularly relates to a method for restraining Solanum rostratum from invading the natural ecological system. According to the method, Elymus dahuricus and wheatgrass are reasonably used for restraining the Solanum rostratum, and invasion of the Solanum rostratum is effectively controlled through the modes of deep ploughing, fine raking, leveling, compacting after sowing, irrigating and after manuring. According to the method, through reasonable matching of the Elymus dahuricus and the wheatgrass and matched scientific planting management, the Elymus dahuricus and the wheatgrass compete with the Solanum rostratum through the growth advantages of the Elymus dahuricus and the wheatgrass, the invasion behavior of the Solanum rostratum in a natural grassland is continuously and effectively restrained, and a guarantee is provided for replacing and preventing alien invasive species such as the Solanum rostratum.

The invention provides a planting method of silicon-enriched ophiopogon japonicus. The planting method includes: land selecting and planting, plant dividing and transplanting and field management. Fertilizer special for ophiopogon japonicus and silicon-enriched nutritional agent are used in the planting process, and the silicon-enriched nutritional agent is composed of 0.5-1 part of bothriochloa ischaemum extract, 1-1.5 parts of pennisetum purpureum schumach extract, 1-1.5 parts of elymus dahuricus extract, 1-2 parts of sodium silicate, 1-3 parts of ammonium silicate, 2-3 parts of ferrous sulfate, 3-5 parts of potassium hydrogen sulfate, 1-2 parts of calcium magnesium phosphorus fertilizer and water. By the method, ophiopogon japonicus is enabled to contain high content of silicon element, to present performances of promoting metabolism of people and delaying aging and to play a better role.

The invention relates to the technical field of environmental protection and greening and particularly relates to an ecological revetment building method applicable to northern grassland regions. Themethod comprises the following steps: (1) before the approach of a raining period of a grassland, crushing collected cattle manure, and then, uniformly and extensively broadcasting the cattle manure powder to the grassland to be restored; (2) in a cold season, i.e., August to September of the grassland, broadcasting lolium perenne seeds and elymus dahuricus seeds which are in the ratio of 3: 7 into the treated rat-damage deteriorated grassland, and carrying out yak grazing utilization; and (3) in a regreening season of the ensuing year, resowing mixed young seedlings of lolium perenne and elymus dahuricus to molehills cave entrances, and carrying out normal management. According to the method disclosed by the invention, the traditional grassland resowing mode that the rat-damage deteriorated grassland is ploughed by using a disc harrow is changed, and forage grass seeds are broadcast onto the grassland and are buried in the land by using treading of hooves of yaks through yak grazing;and through a yak hoof ploughing mode, the disturbance to an ecological environment of the grassland is relatively low, meanwhile, labor and material resources are saved, and the cost is relatively low.

The invention discloses a method for restoring arbuscular mycorrhizal fungi of a vegetative cover in a land with discarded iron tailings of a grassland ecosystem, and relates to the technical field of ecological restoration of vegetative covers in a land with discarded metal tailings. The method for restoring arbuscular mycorrhizal fungi comprises the following steps of: (1) covering earth on iron tailings for 3 to 7 centimeters deep; (2) inoculating arbuscular mycorrhizal fungicides such as Glomus versiforme and the like at the place 0 to 3 centimeters far from the earth; (3) planting plants such as Elymus dahuricus Turcz and the like, harvesting the plants after 60-day to 120-day growth, using the plants which meet a relevant standard as feed, and centralizedly burning and landfilling the plants which do not meet the relevant standard. The method for restoring the arbuscular mycorrhizal fungi has the following advantages that: the adopted arbuscular mycorrhizal fungi symbiose with herbs easily so that the absorption and utilization of nitrogen, phosphorus and potassium are promoted, the absorption or transferring of heavy metals is reduced, the thickness of covering earth is reduced, the growth situation of plants is improved, the planting and growth of plants in iron tailings covered with earth are promoted, the method for restoring the arbuscular mycorrhizal fungi has high success rate of revegetation, simple process and lower cost, and is applicable to management of lands with discarded iron tailings of grassland ecosystems.

The invention discloses a phytoremediation method for combined pollution of Cd, Zn and Cu in riverway dredging sediment. The method comprises the following steps: 1, before sowing, sprinkling water towet the surface layer of sediment, and fully plowing the surface soil, and 2, carrying out plant selection through selecting calendula officinalis, elymus nutans and barnyard grass plant seeds whichare full in particle and basically consistent in size, evenly spraying them into corresponding test boxes, then covering the test boxes with sieved sediment, carrying out single planting and respectively and uniformly transplanting Farfugium japonicum and Sedum spectabile Boreau into the test box. According to the method, the single of calendula officinalis, elymus nutans, barnyard grass, Sedum spectabile Boreau and Farfugium japonicum is selected, the remediation effect on heavy metal Cd, Zn and Cu combined pollution of the river dredging sediment is good, the root lengths of elymus nutans and the barnyard grass are 20-25 cm and 25-29 cm respectively, and the heavy metal polluted sediment with the depth of 0-30 cm can be remediated.

The invention provides green dry forage and a rabbit raising method and relates to the technical field of rabbit culture. The green dry forage is prepared from the following raw materials in parts byweight: 7-15 parts of elymus dahuricus, 15-25 parts of alfalfa, 10-17 parts of daghestan sweet clover, 4-9 parts of sudan grass, 6-11 parts of bromus inermis, 3-8 parts of couch grass, 12-16 parts ofoat straws, 10-15 parts of green corn stalks, 9-13 parts of lolium perenne, 30-40 parts of wedelia chinensis, 10-16 parts of maize meal, 12-18 parts of soybean meal, 15-20 parts of wheat bran, 2-8 parts of bone meal, 1-4 parts of fish meal, 6-13 parts of stone powder and 1-3 parts of common salt. According to the green dry forage provided by the invention, the raw materials are readily available,the matching is reasonable, the nutritive value is high, resources are rich, the cost is low, various nutrients can be supplemented to rabbits, the digestibility of the rabbits to the green dry forageis improved, the cost of feed can be reduced, and the economic benefit of rabbit culture is improved; and meanwhile, the preparation method is simple, the raising method is simple and convenient, themanagement is easy, the operation is simple, and the cost is low, so that large-scale production and popularization are facilitated.

The invention discloses a weeding composition containing haloxyfop-R-methyl. The weeding composition takes the haloxyfop-R-methyl, glyphosate and quizalofop-p-ethyl as main components, and the mass percentage of the haloxyfop-R-methyl is 5-30%, the mass percentage of the glyphosate is 5-20%, and the mass percentage of the quizalofop-p-ethyl is 5-20%. An emulsifier, a dispersant, a stabilizer, a thickener, vegetable oil, deionized water and the like are added to prepare the dispersible oil suspending agent. The weeding composition containing haloxyfop-R-methyl provided by the invention has an obvious synergistic effect after being compounded according to a certain proportion, and has a better control effect on annual and perennial gramineous weeds such as barnyard grass, wild oat, green bristlegrass, digitaria sanguinalis, elymus dahuricus and reed in crops such as wheat, corn, barley and oat.

The invention provides an elymus dahuricus and secalecereale seed barnyard manure coating method. The method comprises the following steps of taking cattle and sheep manure as a coating substrate, and sequentially drying, crushing and disinfecting the cattle and sheep manure; fully mixing the coating substrate, a water-retaining agent and an adhesive to prepare a coating; putting an outer coating material and seeds into a grinding tool, and coating the seeds with the outer coating material to prepare coated seeds; and airing the coated seeds in the shade for 2-3 days until the outer coating material is basically hard. According to the method, the plant height and the emergence rate can be remarkably increased, and the emergence time is in advance.

The invention relates to a kind of sulfonylurea compound and its use in preparing herbicides. The compound has good control effects on rape, retroflexus amaranth, Echinochloa crusgalli(L.)Beauv, common crabgrass herb, eragrostis curvula, barnyard grass, bromus inermis, Eleusine indica, Setaria viridis, Puccinellia distans, Elymus dahuricus, Flaveria bidentis, Ixeris sonchifolia, purslane, morningglory, Abutilon theophrasti, alfalfa, water chestnut, Chenopodium album Linn, dandelion and Polygonum hydropiper, at a dose of 0.5-1g / mu. At a dose of 1g / mu, when stem and leaf treatment or soil treatment is performed, the herbicide has reasonable biological safety for soybean and peanut. These compounds can be used as herbicides in soybean and peanut fields, or broad-spectrum herbicides in non-crop fields such as forest farms or wasteland. The chemical structural formula of the sulfonylurea compound is as follows.

The invention provides a mixed sowing improvement method of saliferous grassland. The method comprises the following steps that (1) the grassland is mechanically ploughed by 25 centimeters, and soil is raked to be flat and fine; (2) grass seeds of mixed forage are sowed, wherein the grass seeds of the mixed forage comprise leymus chinensis seeds, elymus dahuricus seeds, melilotus officinalis seedsand astragalus adsurgens seeds, and the seeds are sowed in the period between late May and the beginning of June. According to the method, not only can the vegetation coverage of the deteriorated grassland be quickly improved, but also the yield and quality of the forage grass can be improved, and the method has significant economic benefits.

The invention discloses a method for planting suaeda salsa at a medium-low-cadmium saline-alkaline land and for extracting plant salt. The method comprises the steps of saline-alkaline land selection, saline-alkaline land improvement, soil cadmium adsorption treatment, and plant salt extraction. According to the soil cadmium adsorption treatment step, amaranthus retroflexus and elymus dahuricus are inter-planted and used for adsorbing cadmium in soil, wherein a preferable inter-planting ratio of amaranthus retroflexus and elymus dahuricus is 4:1, and a planting density is preferably 10*40cm. In the plant salt provided by the invention, cadmium content is reduced to 0.002mg / kg, sodium chloride content is 39%, potassium chloride content is 12%, Mg content is 4%, Ca content is 8%, and Fe content is 750mg / kg. With the method, a problem of excessively high cadmium content in plant salt extracted from suaeda salsa planted in the medium-low-cadmium saline-alkaline land is effectively solved.

The invention discloses a planting method of plateau mine herbaceous plants, comprising the following steps of: preparing soil, seeding, and spraying a nutrient solution, wherein the nutrient solution comprises the following components in proportion: 0.5L of original mixing liquid, 0.5L of water and 100g of water-retaining agent and the original mixing liquid comprises the following components: 1650mg / L of NH4NO3, 1900mg / L of KNO3, 370mg / L of MgSO4 7H2O, 170mg / L of KH2PO4, 440mg / L of CaCl2 2H2O, 0.83mg / L of KI, 6.20mg / L of H3BO3, 22.30mg / L of MnSO4 4H2O, 8.60mg / L of ZnSO4 7H2O, 0.25mg / L of Na2MoO4 2H2O, 0.025mg / L of CuSO4 5H2O, 0.025mg / L of CoCl2 6H2O, 28.70mg / L of FeSO4 7H2O, 37.3mg / L of Na2-EDTA 2H2O, 100 mg / L of inositol, 0.5mg / L of niacin, 0.5mg / L of pyridoxine hydrochloride, 0.1mg / L of thiamine chloride, 2mg / L of glycine and 25g of sucrose; covering soil; and covering mulching film. Through the implementation and the usage of the method, the germination rate and the survival rate and the per-plant tiller number of elymus dahuricus turcz can be greatly increased, therefore, the possibility of recovering vegetation of mines is increased.