150results about "Cotton cultivation" patented technology

The invention relates to the technical field of biology, in particular to a plant growth regulator for promoting cotton growth and improving cotton yield and fiber quality and application of the plant growth regulator. The plant growth regulator is prepared from the following components in concentration: 0.08 to 0.1 mg / L of 2, 4-epibrassinolide and 50 to 60 mg / L of prohexadione calcium. The plant growth regulator is an aqueous solution. The plant growth regulator is sprayed in the squaring stage, the flowering stage and the topping stage of cotton, the result shows that the treated plant is thicker and stronger, the boll number and the boll weight of a single plant are remarkably increased, and the final yield is remarkably increased. Meanwhile, the quality of the cotton fibers is effectively improved, the length of the cotton fibers is remarkably increased, the uniformity of the cotton fibers is improved, and powerful support is provided for cultivation and development of high-quality cotton.

The invention discloses an intelligent irrigation system and method for improving the utilization rate of cotton planting water resources, and the system comprises a data collection module which is used for obtaining the multi-source data of a cotton planting region in a preset time period, and carrying out the preprocessing of the multi-source data, so as to obtain a data set containing the three dimensions of soil, crops, and meteorology; the water demand prediction module is used for predicting the data set obtained by the data acquisition module by using a trained CNN-TCN-Attention model and generating a cotton field soil water demand; the irrigation module is used for formulating an intelligent irrigation strategy in combination with a cotton growth stage based on the data set obtained by the data acquisition module and the cotton field soil water demand predicted by the water demand prediction module, and irrigating a cotton planting area according to the intelligent irrigation strategy; the visual platform is used for monitoring the irrigation process in real time; efficient water saving and precise irrigation are achieved, and the utilization rate of cotton planting water resources is increased.

The invention relates to the technical field of soil improvement, and discloses a straw-returning soil-improving yield-increasing method for saline-alkali soil cotton planting, comprising the following steps: S1, collecting soil to obtain a saline-alkali soil sample; s2, determining the straw returning amount, and setting different returning amount standards such as non-returning of cotton straws, half-amount returning of the straws and full-amount returning of the straws in a cotton producing area of the coastal saline-alkali land by referring to local soil conditions and cotton planting conditions; s3, in combination with deep scarification treatment, performing deep scarification and non-deep scarification comparison treatment on the basis of different straw returning amounts; and S4, monitoring the physical and chemical properties of the soil. After the straws are returned to the field, as time goes on, the straws are gradually decomposed, abundant organic substances are added to the soil, the organic substances are beneficial to formation and stabilization of soil aggregates, so that the pore structure of the soil is improved, the soil becomes looser, the air permeability and the water permeability are remarkably improved, and the soil quality is improved. And a good soil environment is created for growth and respiration of cotton roots.

The invention relates to the technical field of microorganisms, and particularly provides application of bacillus amyloliquefaciens BA-89 in crop growth promotion and verticillium dahliae antagonism. The strain is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CGMCC No.36498. The strain can secrete multiple extracellular enzymes (including protease, amylase, cellulase and glucanase), has the growth promoting characteristics of producing ammonia, dissolving potassium and the like, and can tolerate high temperature and ultraviolet stress; the compound has a remarkable antagonistic effect on various plant pathogenic bacteria (such as verticillium dahliae, fusarium oxysporum and phytophthora capsici); by inoculating the strain on cotton, the plant growth can be obviously promoted, the plant height, stem diameter, root length, leaf area and biomass are improved, and meanwhile, the disease index of verticillium wilt and the colonization amount of pathogenic bacteria at the root are effectively reduced. The strain disclosed by the invention can be used as a biological fertilizer and a biological pesticide, is used for cotton cultivation and disease prevention and control, and has a wide application prospect.

The invention discloses a water and fertilizer regulation method for realizing a saline-alkali soil plough layer soil fertilizer salt domain and application thereof, and relates to the technical field of crop water and fertilizer. The method comprises the following steps that S1, winter and spring irrigation is not carried out, and ploughing, soil preparation and sealing are carried out in the middle ten days of April; s2, a planting mode is set, film mulching, tape laying and sowing are carried out at the same time, precision sowing is carried out, one seed is planted in one hole, and an early-maturing cotton variety is used; s3, after sowing, setting irrigation quota, fertilization amount and fertilization time, and performing irrigation and fertilization by using under-film drip irrigation water and fertilizer integration; s4, marking the cotton; s5, measuring the cotton field soil index and the cotton yield. According to the method, the dynamic characteristic of salt along with water and the under-mulch drip irrigation water and fertilizer integration technology are utilized, the spatial distribution characteristics of water, fertilizer and salt in a soil plough layer are changed by reasonably regulating and controlling the irrigation quota, the fertilization proportion and the fertilization time, and tests prove that the water and fertilizer regulation and control strategy can effectively reduce the salt in the plough layer, increase water and nutrients and improve the yield of the plough layer. And crop growth and yield formation are promoted.

The invention discloses a method for direct seeding and multiple cropping of cotton after wheat in southern Xinjiang, and belongs to the technical field of cotton planting in southern Xinjiang areas. According to the method, cotton varieties with compact plant types are selected, the plant spacing in a wide-narrow planting mode is shortened, the number of plants is increased, meanwhile, the number of cotton bolls of a single plant is reduced, water and fertilizer integrated management measures are taken in cooperation, and the method adapts to accumulated temperature changes between the winter wheat harvest period and the frost season in June by means of the population effect advantage of cotton crops; high yield of cotton is guaranteed, and double cropping of winter wheat and cotton in one year is realized.

The invention provides a method for improving the growth and yield of cotton through saline water irrigation, and particularly relates to the technical field of crop water and fertilizer management. According to the method, saline water is only irrigated once in the bud stage, the irrigation amount of the saline water is 8.9% of the total irrigation amount, fresh water is adopted for irrigation in the remaining growth stage or saline water is irrigated once in the bud stage and the flowering stage respectively, the irrigation amounts of the saline water in the bud stage and the flowering stage are 8.9% and 11.1% of the total irrigation amount respectively, and saline water of fresh water irrigation is adopted for supplementary irrigation in the remaining growth stage. The growth and yield improvement of the cotton can be obviously promoted, and the reasonable utilization and agricultural sustainable development of salty water resources in the southern Xinjiang region of Xinjiang are also promoted.

A method for preserving and strengthening seedlings in a continuous cropped cotton field with soil moisture deficiency in a desert oasis includes the steps of seedbed establishment, sowing and drip irrigation tape laying, soil moisture supply through drip irrigation after sowing, and field management after emergence. Within 0-2 days of a suitable sowing period for cotton, land plowing, harrowing and smoothing operations are completed, wherein a combined land preparer adopts a diverting soil leveling frame design that does not comprise any harrow groups. The drip irrigation tape is either a drip irrigation tape with a labyrinth on one side or a drip irrigation tape inlaid with emitters inside. After sowing, the first drip irrigation for soil moisture supply is generally carried out within 24 hours, and the second drip irrigation is followed after 3 to 5 days. After the cotton emerges, the planting rows are then covered with soil.

The invention discloses a substance and a method for improving salt tolerance of cotton in a seedling stage and application of the substance and the method, solves the technical problem of improving the salt tolerance of the cotton in the seedling stage, and particularly discloses application of glutathione or salt of the glutathione or solvates of the glutathione or the salt of the glutathione in improving the salt tolerance of plants. The salt tolerance of the cotton in the seedling stage can be improved.

The invention belongs to the technical field of fertilizers, and particularly relates to a fertilizer composition containing ascophyllum nodosum extract. The invention discloses a fertilizer composition containing ascophyllum nodosum extract, the core component of the fertilizer composition is composed of the ascophyllum nodosum extract and fulvic acid, the mass ratio of the ascophyllum nodosum extract to the fulvic acid is (1-40): (1-20), and the ascophyllum nodosum extract and the fulvic acid have a synergistic effect. Field test results show that the fertilizer containing the ascophyllum nodosum extract and fulvic acid has the effects of promoting plant growth and increasing yield, and has the effect of reducing soil salinity and alkalinity. The invention provides a new technical path for saline-alkali soil improvement and plant growth promotion.

The invention belongs to the technical field of fertilizers, and particularly relates to a fertilizer composition containing bacillus velezensis. The invention discloses a fertilizer composition containing bacillus velezensis, the core component of the fertilizer composition is composed of a fermentation broth of bacillus velezensis CGMCC No.14384 and calcium lignosulphonate, the mass ratio of the fermentation broth of the bacillus velezensis CGMCC No.14384 with the bacterial concentration of 108cfu / mL to the calcium lignosulphonate is 0.5-20: 1-15, and the fertilizer composition has a synergistic effect on plant growth promotion. Field test results show that the fertilizer containing the composition of the fermentation liquor of the bacillus velezensis CGMCC No.14384 and the calcium lignosulphonate has obvious saline-alkali reducing effect and plant growth promoting effect, and can be applied to saline-alkali soil improvement and plant growth promoting.

The invention discloses a one-film six-row wide-narrow-row close-planting staggered planting method for cotton, which comprises the following steps: measuring the soil nutrient content of a region to be planted, calculating the comprehensive score of soil fertility, selecting a basic plant spacing according to the tillering coefficient of a cotton variety, fitting an accumulated temperature correction function, calculating a predicted value of the tillering rate, and calculating a dynamic offset in combination with the latitude of a planting field. Determining a narrow row spacing and a sowing depth according to the dynamic offset, extracting a growth picture of the same variety of cotton in the same region after the flowering and boll-setting period, extracting a planting row spacing mean value of the canopy coverage in a preset range as a wide row spacing, planting cotton according to the basic plant spacing, the narrow row spacing, the wide row spacing and the sowing depth, and monitoring the canopy photosynthetically active radiation in real time. And dynamically regulating and controlling a drip irrigation fertilization strategy according to the photosynthetically active radiation of the canopy. By means of the method, the photosynthetic efficiency, the water and fertilizer utilization efficiency and the stress resistance of cotton groups can be improved, a brand new technical path is provided for high-yield and high-quality cultivation of cotton, and the method has important significance in promoting intelligent transformation of the cotton planting industry.

The invention provides a rare-earth-based composite pesticide and a preparation method and application thereof, active ingredients of the rare-earth-based composite pesticide comprise a soil material LN and carbendazim according to the mass ratio of (2-3): 1, and the soil material LN is prepared after a lanthanide rare earth material and iodic acid react and crystallize. The rare-earth-based composite pesticide disclosed by the invention has an obvious inhibition effect on pathogenic bacteria of cotton verticillium wilt, can obviously improve symptoms of the cotton verticillium wilt in field experiments and practical application processes, and reduces agricultural loss caused by the cotton verticillium wilt.

The invention discloses gene sequences of a plant EPSPS mutant and its application in plants. As compared to the wild type, the present disclosure describes a plant EPSP synthase (EPSPS) polypeptide which comprises amino acid V mutating to amino acid A corresponding to the location at V403 or the analogous location at V403, wherein the amino acid position corresponds to the amino acid position set forth in SEQ ID NO:1.

The invention discloses application of fluorine-doped carbon quantum dots in improvement of salt stress of cotton. The average particle size of the fluorine-doped carbon quantum dots is 0.5-10 nm. Research finds that the fluorine-doped carbon quantum dots can significantly improve the growth condition of cotton under the salt stress condition and improve the dry weight and fresh weight of cotton; in addition, the activity of SOD and CAT in the cotton body can be remarkably improved, the ROS content, the Pro content and the MDA content are remarkably reduced, and it is indicated that the fluorine-doped carbon quantum dots can remarkably improve the salt stress of the cotton.

The invention provides a rare earth functional material for preventing and treating cotton verticillium wilt and a preparation method and application thereof.The rare earth functional material comprises an intermediate, a carrier and water according to the mass ratio of (4-6): (4-6): (18-25), and the intermediate comprises a rare earth lanthanum source compound, a medium and water according to the mass ratio of (7-15): (2-7): (78-89). The rare earth functional material LCP has a particularly strong inhibition effect on verticillium dahliae which is a pathogenic bacterium of cotton verticillium wilt, compared with a common pesticide thiophanate methyl in the market, the inhibition effect of the rare earth functional material LCP is obviously better than that of the pesticide thiophanate methyl, the toxic effect on plants is low, the material is expected to be applied to preparation of pesticides, and the application prospect is wide. The composition is used for controlling cotton verticillium wilt, increasing cotton yield in China and improving cotton quality.

The invention belongs to the field of gene engineering, and discloses a method for rapidly evaluating the plant growth capacity of transgenic herbicide-resistant cotton in the seedling stage, and the method comprises the following steps: S1, sowing transgenic cotton seeds to be detected; s2, when cotton cotyledons are completely flattened, glyphosate with the working concentration of 0 time or 2 times or 4 times is sprayed; s3, 7 days after spraying, respectively taking the overground part and rhizosphere soil of the cotton, and detecting the dry weight of the overground part and the water content and microbiome of the rhizosphere soil; and S4, judging the plant growth capability of the transgenic herbicide-resistant cotton in the seedling stage. The method provided by the invention is a rapid, standardized and repeatable seedling stage plant growth ability evaluation method, is suitable for multi-material and large-scale determination, is easy to popularize and apply in the agricultural field, and has urgent and important practical significance for accelerating glyphosate-resistant cotton variety breeding and industrial application.

The application belongs to the technical field of biological breeding, and particularly relates to application of D-ribose in improving plant salt stress resistance. The application provides application of D-ribose in improving plant salt stress resistance. As an important plant metabolite, D-ribose plays a key role in the growth and development stage of plants. Under salt stress conditions, application of D-ribose can not only promote the growth of plant taproot, plant height and leaf, reduce the inhibitory effect of salt stress on crop growth, but also has a protective effect on flowering and seed production of later plants. The application method is simple, and the use effect is remarkable.

The invention discloses application of gold nanoclusters in improvement of salt tolerance of cotton. According to the application, a solution containing the L-gold nanoclusters and / or the D-gold nanoclusters is applied to cotton roots or leaves. The concentration of the L-gold nanocluster in the solution is 0.001 to 0.01 mM; or in the solution, the concentration of the D-gold nanocluster is 0.003 to 0.008 mM. The gold nanocluster can well improve the fresh weight of the cotton under salt stress, can improve the chlorophyll content and photosynthesis of the cotton under salt stress, and can improve the oxidation resistance of the cotton under salt stress.

This invention discloses a cotton high-temperature yield-increasing regulator and its application. The regulator, water-based, comprises 2-amino-3-methylhexanoic acid and 1-methylcyclopropene. When applied during the cotton flowering and boll-forming stage, it significantly improves cotton photosynthetic performance and antioxidant enzyme activity, enhancing the cotton's high-temperature resistance. Compared to spraying with plain water, spraying this regulator at high temperatures increased boll weight by 95.2%, reduced shedding rate by 6.9%, and increased seed cotton yield by 74.1%, indicating that under high-temperature stress, this high-temperature yield-increasing regulator can significantly increase seed cotton yield by increasing boll weight and reducing shedding rate. In field trials, compared to a control using room-temperature water, spraying this high-temperature yield-increasing regulator also significantly reduced cotton boll shedding rate (average reduction of 11.1%) and significantly increased cotton seed cotton yield (average increase of 15.4%). This high-temperature yield-increasing regulator has advantages such as ease of use, small dosage, low cost, good effect, safety, high efficiency, and environmental friendliness, and has broad application prospects.

The present application belongs to the field of agricultural pest control, and particularly relates to a method for improving the content and insecticidal activity of exogenous insecticidal protein of insect-resistant transgenic cotton. The method is realized by the following steps: maintaining the soil cadmium concentration at 1-5 mg / kg when the cotton is at the three-leaf stage; and maintaining the soil cadmium concentration at 1-4 mg / kg when the cotton is at the five-leaf stage. The method provided by the present application can significantly improve the content and insecticidal effect of exogenous insecticidal protein of insect-resistant transgenic cotton, and enhance the insecticidal activity against cotton bollworms. The method provided by the present application can improve the control effect on pests while controlling cadmium pollution when planting transgenic insect-resistant cotton on land contaminated by a certain concentration of cadmium, and reduce the use of insecticides. Therefore, the present application provides an effective reference for improving the control effect on pests when planting insect-resistant transgenic cotton on land contaminated by cadmium, and has important practical value and significance.

The invention relates to the technical field of microorganisms, and particularly provides application of bacillus velezensis Y1062 in crop growth promotion and verticillium dahliae antagonism. The strain is preserved in the China General Microbiological Culture Collection Center (CGMCC) with the preservation number of CGMCC No.36497, has various probiotic functions of dissolving phosphorus and potassium, secreting cellulase, amylase and protease and the like, and can tolerate high temperature and ultraviolet stress. Meanwhile, the strain has a broad-spectrum antagonistic effect on various phytopathogens such as verticillium dahliae, fusarium oxysporum and the like. The pot experiment further proves that the disease index of the cotton verticillium wilt and the biomass of pathogenic bacteria at the root can be remarkably reduced by inoculating the strain, the growth promoting effect is remarkable, and the root development and plant growth of crops can be remarkably promoted by applying the strain to the crops. The invention provides a special'growth-promoting and disease-resisting 'functional strain resource for crops such as cotton and the like, and has important significance.

According to the folium artemisiae argyi extract, the preparation method thereof and the application of the folium artemisiae argyi extract in growth promotion, the folium artemisiae argyi extract required by a plant biostimulant comes from folium artemisiae argyi, the folium artemisiae argyi extract has the advantages of being rich in source, easy to extract and the like, green and sustainable agricultural development is facilitated, and a new scheme is provided for yield increase of crops. According to the extract, leaves and stems of traditional Chinese medicine folium artemisiae argyi serve as raw materials and are subjected to two times of ultrasonic extraction (absolute ethyl alcohol), filtrate is combined, then a crude extract is prepared, a purified component is a 60% ethanol component obtained by separating the crude extract through macroporous resin, the purified component mainly comprises a flavonoid component, and the content of eupatilin is the highest. The plant height, leaf length and fresh weight of rice, pakchoi, cotton and soybean are all improved after the fertilizer is applied according to the application mode mentioned in the invention.

The invention discloses a wheat and cotton interplanting double-machine-harvesting planting method in a Xinjiang cotton area, and belongs to the technical field of agriculture. The invention provides a wheat and cotton interplanting double-machine-harvesting planting method which is easy to implement and easy and convenient to operate, wheat is sown in a wheat and cotton intercropping mode, a reserved row mode is adopted for wheat sowing, wheat is sown at the end of September or the beginning of October (after cotton harvesting), a mechanical broadcast sowing mode is adopted, cotton is sown in a reserved row at the end of April or the beginning of May, and a 90 cm + 10 cm wide and narrow row planting mode is adopted for cotton. By establishing a scientific space-time three-dimensional configuration planting system, the group structure is adjusted, the utilization efficiency of land, illumination, moisture, fertilizer and other resources is improved, grain and cotton collaborative development is achieved, and the method has great strategic significance for consolidating the dominant position of the cotton industry and promoting agricultural sustainable development.

The invention discloses a method for preparing slow-release phosphate fertilizer soil from graphite tailing sand and coal gangue and application, and relates to the technical field of solid waste resource utilization and agricultural fertilizer. The slow-release phosphate fertilizer soil is prepared by carrying out gradient magnetic separation-acid leaching synergistic pretreatment on graphite tailing sand (the removal rate of magnetic impurities reaches 92%-95%), carrying out segmented roasting-microwave activation treatment on coal gangue (the specific surface area is increased to 28.6-32.4 m < 2 > / g), then mixing the pretreated raw materials with a composite exciting agent, and carrying out a low-temperature sintering-granulation molding process. The problem of low resource utilization rate of the graphite tailing sand and the coal gangue is effectively solved, the soil phosphorus slow release period of the prepared phosphate fertilizer reaches 120-150 days, the prepared phosphate fertilizer can meet the nutrient requirement of phosphorus-loving crops in the whole growth period, compared with a traditional phosphate fertilizer, the usage amount is reduced by 30-40%, the phosphorus utilization rate is increased to 65-72%, and remarkable economic, environmental and social benefits are achieved.

The invention belongs to the technical field of saline-alkali soil improvement, and particularly relates to a method for screening and evaluating a salt tolerance threshold in a cotton seedling stage. The invention discloses a method for determining a salt tolerance threshold value of cotton in a seedling stage. The method comprises the following steps: simulating stress environments with different salt concentrations; measuring the whole plant fresh weight, dry weight, plant height, root length, whole plant length, stem diameter and leaf area of the cotton seedlings after salt treatment; related indexes after salt treatment are detected, and the salt concentration tolerance degree is evaluated; and determining a salt concentration tolerance threshold value. According to the method, the relatively accurate salt tolerance threshold of the cotton seedling stage is finally determined according to the fitted model by utilizing correlation analysis and a quadratic regression equation and combining the actual growth conditions of the cotton seedlings under different salt concentrations. When the index fitting model is selected, a plurality of indexes are selected instead of a specified growth or physiological index. Compared with previous methods, the method established by the invention is a more comprehensive and accurate screening method.

The present application belongs to the technical field of plant pesticides, and particularly relates to a cotton defoliation and ripening composition and application thereof. The cotton defoliation and ripening composition comprises gibberellic acid and thiabendazole; wherein the mass ratio of the gibberellic acid to the thiabendazole is 1:5-120. The cotton defoliation and ripening composition provided by the present application not only significantly improves the defoliation rate through the synergistic effect of the gibberellic acid and the thiabendazole, but also effectively reduces the phenomenon of 'burning and withering branches' by promoting the natural formation of abscission layer, thereby reducing the impurities of machine-picked cotton from the source. The cotton defoliation and ripening composition provided by the present application promotes the concentrated boll shedding while realizing efficient defoliation.

The invention discloses a method for preventing and controlling weeds in a cotton field and application thereof, and the method comprises the following steps: sowing winter wheat in the winter slack period of the cotton field; after the winter wheat is sown and before emergence of seedlings, spraying a first closed herbicide by adopting an unmanned aerial vehicle; in the filling stage of the winter wheat, an unmanned aerial vehicle is adopted to spray selective broadleaf herbicides; after the winter wheat is harvested, ploughing the cotton field until the soil is virtual at the upper part and solid at the lower part, selecting upright peanut seeds, and sowing the seeds in the cotton field; within a first preset time after the peanuts are sown, the unmanned aerial vehicle is adopted to spray pre-emergence herbicide; after the peanut seedlings emerge for a second preset time, the unmanned aerial vehicle is adopted to spray post-emergence herbicide away from the peanut flowering and needling period; in the early pod bearing stage of the peanuts, cotton sowing is conducted between the peanut rows; spraying a second sealing herbicide after cotton sowing and before seedling emergence; in the early stage of cotton boll opening, the unmanned aerial vehicle is adopted to spray selective apex leaf herbicides, the weed prevention and control efficiency is improved, pesticides are saved, and benefits are increased.

The present invention relates to a method for simultaneously improving cotton yield and phosphorus utilization efficiency in arid areas, and belongs to the technical field of cotton fertilization. The method for simultaneously improving cotton yield and phosphorus utilization efficiency in arid areas comprises: applying 228.8 to 259.3 g / mu of phosphorus fertilizer (calculated as P2O5) and 2.5 to 3.5 kg / mu of bio-organic liquid fertilizer during the seedling stage; 452.1 to 512.4 g / mu of nitrogen fertilizer (calculated as N); and 75.0 to 85.0 g / mu of potassium fertilizer (calculated as K2O); and applying 2058.8 to 2333.3 g / mu of phosphorus fertilizer (calculated as P2O5) and 22.6 to 31.6 kg / mu of bio-organic liquid fertilizer during the bud stage; 3717.0 to 4212.6 g / mu of nitrogen fertilizer (calculated as N); and 1012.5 to 1147.5 g / mu of potassium fertilizer (calculated as K2O). The present invention effectively improves the phosphorus fertilizer utilization efficiency of cotton, ensures normal growth of cotton, and reduces the use of chemical fertilizers.

The present invention is directed to a method for improving heat stress tolerance in plants, comprising applying an effective amount of 1-amino-1-cyclopropanecarboxylic acid to the plants.