220results 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 provides a salt-tolerant strain 8A-1 and application thereof, and relates to the technical field of microorganisms. The salt-tolerant strain 8A-1 obtained through screening can survive in the environment with the NaCl concentration being 16% and the pH value being 8.5, and the soil index of the saline-alkali soil can be effectively improved and the EC value and the pH value of the soil can be reduced by spraying a bacteria solution of the salt-tolerant strain 8A-1 in the saline-alkali soil. The salt-tolerant strain 8A-1 can remarkably improve the yield of cotton in saline-alkali soil, effectively relieves or relieves salt stress of the growth environment on cotton plants, lays a foundation for promoting and improving cotton growth, and has high application value in cotton planting.

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 relates to a salt transfer and soil improvement method for constructing capillary channels, which aims at the problems of deep salt accumulation and year-by-year aggravation of a water-saving farmland in an arid region, and comprises the following steps: drip irrigation of fresh water under a film on a ridge for salt leaching, film laying at the bottom of a furrow, landfill of a high-water-conductivity organic material, cuttage of water diversion straws in the organic material, and covering of a plurality of layers of black cotton fibers. An arch-shaped raised evaporation surface between the membranes is formed, namely, a continuous capillary channel is built, salt is enriched in a porous cotton fiber material, after salt accumulation is balanced, an outer layer is removed regularly, and dry discharged salt recovery in the farmland is achieved; and in cooperation with interchange of furrows and ridges and winter irrigation of inter-annual period slack farming water, farmland plough layer desalination and fertilization are actively realized year by year.

The invention discloses a cotton salt-tolerant breeding device and a breeding method thereof, and relates to the technical field of cotton salt-tolerant breeding, the cotton salt-tolerant breeding device comprises a base, the top of the base is fixedly connected with a support frame, the lower position of the surface of the support frame is fixedly connected with a hydraulic cylinder, and the bottom of the inner side surface of the support frame is slidably connected with a storage box. According to the cotton salt-tolerant breeding device and the breeding method thereof, saline water is sprayed into a storage box through a spray head, a telescopic cylinder drives a stirring assembly to move downwards, the stirring assembly extends into a substrate, the stirring assembly is driven by the telescopic cylinder to repeatedly ascend and descend to stir the substrate and the saline water, and the salinity and alkalinity of the substrate are increased; the linear guide rail drives the supporting plate to reset, the grabbing and conveying mechanism grabs the salinity matrix and then puts the salinity matrix into the cultivation mechanism, and the problem of how to select the cultivation salinity range of cotton seeds so as to improve the yield of cotton planted in the saline-alkali soil is solved.

The invention discloses a phosphorus application method for improving salt and alkali resistance of cotton in a seedling stage, which specifically comprises the following steps: S1, in a key period from cotton sowing to true leaf expansion, carrying out drip irrigation with a small amount of phosphate solution for many times; s2, the position of a water dropper and the drip irrigation depth of the drip irrigation system can ensure that a phosphate solution directly acts near a cotton root system to stimulate the root system to develop towards deep soil, so that the salt and alkali resistance of the cotton in the seedling stage is enhanced; s3, slow-release phosphate particles or phosphate in a wrapped form is used, and it is guaranteed that the cotton can obtain stable phosphorus nutrition supply in the whole seedling stage; and S4, establishing an online monitoring platform for collecting information such as soil conductivity, pH value, cotton growth condition and the like in real time. The classified garbage is subjected to solid-liquid separation, and the situation that normal use of the classification barrel is affected due to mutual influence and fermentation of the garbage is avoided.

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 present invention discloses a method for predicting the plant growth state during the cotton topping period based on multispectral remote sensing of unmanned aerial vehicles, which comprises the following steps: S1, using a multispectral camera to collect multispectral information of the cotton canopy before and after the topping operation; collecting crop indicators related to the determination of the topping time strategy; S2, constructing a multispectral regression analysis model of the cotton canopy multispectral information-crop indicators; S3, using the multispectral information of a specific band combination collected from the cotton field to be predicted as input data, and obtaining the crop indicators through the multispectral regression analysis model. The method of the present application can realize the intelligent and rapid acquisition of cotton plant height, flower buds and fruit branches, and provide data support for the determination of cotton topping time.

The invention belongs to the technical field of biological control of cotton wilt, and specifically relates to the application of chalcone compounds in preventing and controlling cotton wilt and a method for preventing and controlling cotton wilt. The invention uses chalcone compounds as the only active ingredient, and plate antibacterial tests and pot tests confirm that chalcone can inhibit the growth of cotton wilt pathogens, reduce the disease index of cotton wilt, and prevent and control cotton wilt.

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 discloses a technology for shortening a cotton breeding cycle and application thereof, and the technology comprises the following steps: 1, accelerating budding and flowering under mixed light of blue light, green light, red light and far-red light; 2, performing GA3 treatment to promote germination of immature embryos; 3, using the created L-mAUH and mAUH cotton immature embryo culture medium to culture the 25-28-day-old cotton immature embryos into seedlings; fourthly, the first step, the second step, the third step and the fourth step are circularly carried out for multiple times, in the process, molecular markers are used for carrying out auxiliary selection on the good characters of the foreground, and meanwhile whole genome re-sequencing is used for carrying out background auxiliary selection. The method has the advantages that by means of efficient blue, green, red and far-red spectrum adjustment, GA3 treatment, immature embryo culture, molecular marker selection and whole genome re-sequencing, cotton growth and development can be remarkably accelerated, and the cotton breeding period is effectively shortened. According to the method, a conventional backcross breeding process can be effectively integrated, excellent characters can be quickly transformed, and an improved line with a high genetic background recovery rate can be obtained within 1.5 years.

The invention discloses a bimerization biological method capable of improving the nutrient utilization rate, and belongs to the technical field of biological preparation. The bimerization biological method capable of improving the nutrient utilization rate comprises the following steps: step 1, testing nutrients in soil, and then sowing crops; step 2, applying a dimeric chelate and a compound fertilizer in a seedling stage, a jointing stage and a fruiting stage of crops; 3, harvesting the crops according to the growth conditions of the crops. The method can effectively improve the utilization rate of nutrients and increase the yield of crops.

The invention belongs to the technical field of crop cultivation, and particularly relates to application of gamma-aminobutyric acid in relieving saline-alkali stress of cotton and a method for relieving the saline-alkali stress of the cotton. According to the method, gamma-aminobutyric acid is used as an exogenous additive, and when the cotton is stressed by a secondary salt solution with the salt content of 0.45%-0.47% and the pH value of 7.5-8.0, the gamma-aminobutyric acid is added into the secondary salt solution; gamma-aminobutyric acid relieves secondary salt solution stress by improving superoxide dismutase activity of cotton, improving peroxidase activity of cotton, reducing malondialdehyde content of cotton, improving catalase activity of cotton, reducing superoxide anion content, reducing H2O2 content of cotton and improving soluble protein content of cotton; compared with other plant growth regulators, the gamma-aminobutyric acid has higher cotton saline-alkali stress relieving activity. And the gamma-aminobutyric acid is an amino acid naturally existing in an organism, has no toxicity to a human body, has no residual toxicity and residual effect after being used for treating cotton, and has practical utilization value.

The invention discloses an early-maturing high-quality cotton breeding method with a high-yield effect, which comprises the following steps: selecting cotton varieties, namely screening the cotton varieties according to the growth state and various coefficients of a cotton field; cotton seed pretreatment: selecting full and clean cotton seeds for pretreatment; the method comprises the following steps: pretreating breeding field land, leveling the land, removing weeds, carrying out base fertilizer treatment, and irrigating to keep the soil moist; sowing the cotton seeds pretreated in the step 2; performing irrigation, fertilization and disease and pest resistance treatment during the growth period of the cotton seeds; after the cotton bolls are mature, ginned cotton is collected for standby application, and the optimized high-yield cotton improved seeds are screened and collected. According to the breeding method for the early-maturing high-quality cotton with the high-yield effect, firstly, various character quality cardinal numbers of cotton types are screened, then high-quality growth environment planting is provided by sterilizing a breeding field in cooperation with base fertilizer treatment, high-yield cotton is obtained, and high-quality cotton seeds of the high-yield cotton are collected.

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 belongs to the field of cotton planting, and provides a cotton irrigation optimization method based on water utilization rate and yield. Comprising the steps of collecting biomass and seed cotton yield, calculating a harvest index, setting a 5TE sensor, collecting apparent dielectric constants, calculating soil water content, calculating grid total water content, counting accumulated soil water consumption, integrating comprehensive cotton data, obtaining a fitting model, obtaining a characteristic curve and analyzing the characteristic curve. By collecting and analyzing the water utilization rate and yield data of the cotton under different densities, screening of the optimal planting density is achieved.

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.