105 results about "Chemical control" patented technology

The invention relates to the technical field of intelligent agriculture and crop cultivation, in particular to a soybean planting chemical control self-adaptive regulation and control method and system based on canopy risk identification, and the method comprises the steps: constructing a digital twinborn model for dynamically simulating the growth process of a soybean population; monitoring a canopy structure, a leaf area index LAI and a light interception rate of the soybean in the key growth period by using an unmanned aerial vehicle or a sensor, and calibrating the digital twinborn model; future weather forecast data are input into the calibrated digital twinborn model for growth simulation, and light distribution is simulated by means of a pre-established AI model to identify soybean population closing and illumination competition risks; and according to the risk identification result, a chemical control decision is generated autonomously, and the variable pesticide spraying machine is controlled to perform precise variable operation of soybean planting based on the chemical control decision. According to the method, group development can be predicted in a prospective manner, and risks can be accurately quantified, so that an intelligent regulation and control mechanism with prospective and active properties is actively triggered, and active intervention of planting is realized.

The invention discloses bacillus velezensis as well as a compound medicament and application thereof, and belongs to the technical field of plant disease control. In order to solve the problems of easy generation of drug resistance, influence on ecological environment, residue of forbidden pesticide, excessive pesticide and the like in the existing chemical control method for cowpea fusarium wilt, the invention screens out a bacillus velezensis T9 with a relatively good inhibition effect on pathogenic bacteria of cowpea fusarium wilt; experiments find that the strain T9 has an obvious inhibition effect on various plant pathogenic fungi, and a bacterial solution of the strain T9 can effectively prevent and treat cowpea fusarium wilt and can effectively promote cowpea growth; besides, the compound medicament prepared from prochloraz and bacillus velezensis T9 bacterial liquid is used for irrigating cowpea seedlings, and the compound medicament is found to have a good control effect on cowpea fusarium wilt, can effectively reduce the use amount of chemical medicaments, and also has a certain growth promoting effect on cowpea plants.

The invention relates to the technical field of agricultural cultivation, and particularly discloses a northern Xinjiang egg-wrapped wheat drip irrigation sowing method, which comprises the technical key points of preparation before sowing, sowing, field management, timely harvesting and the like, and is completed by selecting an excellent wheat variety with high yield, good stress resistance and large high-yield potential and sowing 2-3 days before freezing, reasonable dripping, fertilization, chemical control, chemical weeding and pest control are carried out, and the yield of the northern Xinjiang egg-coated wheat is increased.

The application discloses a multi-carboxyl copolymer aqueous composition for pulp adding in packaging paperboard, synergism in short-stay pulp of packaging paper and fiber synergism in wet end of bamboo pulp paper, and a preparation and application method thereof, and belongs to the technical field of pulp and paper chemicals and wet end chemical control. The composition contains carboxyl-rich copolymer, and can be selected as high filtration rate homogeneous aqueous solution type, flexible type acid or bamboo pulp low cation density copolymer according to paper types, and is prepared through water phase free radical polymerization. In application, the composition is diluted and then added in a divided mode after a fan pump outlet to a pressure screen inlet or after a cationic polyacrylamide retention agent or in a bamboo pulp system. The method is beneficial to improving fiber combination, drainage stability, first-pass retention rate, white water stability and paper strength, and improving the adaptability of wet end dosing windows of different paper types.

The present application relates to a kind of fluoro-eth composition, plant growth regulator and its application, belong to the technical field of pesticide.The present application provides a kind of fluoro-eth composition, including flumetralin and ethephon, and the mass ratio of flumetralin and ethephon is flumetralin:ethephon=1:(0.05-20).The present application creatively combines control tip drug flumetralin and kill tip drug ethephon together to prepare fluoro-eth composition, and the compound preparation of flumetralin and ethephon can be used to control and inhibit litchi winter shoot, and its efficacy is mild, and the safe period is longer, and the safety is extremely high, compared with the conventional chemical control drug used alone, the control effect on litchi winter shoot is also more comprehensive and excellent, not only can control the germination of winter shoot, is conducive to the accumulation of tree nutrients, promotes flower bud differentiation, but also can have obvious control or kill shoot effect on the growth of litchi winter shoot that just sprouts certain length, so as to reduce the consumption of tree nutrients, lay a solid foundation for the stable yield of second year.

The invention relates to the technical field of crossing of biological control and chemical control of agricultural pests. The invention provides a synergistic prevention and treatment composition containing dsLCP1 and a chemical agent for Frankliniella occidentalis, the synergistic prevention and treatment composition for Frankliniella occidentalis comprises the dsLCP1 and the chemical agent, and the nucleotide sequence of the dsLCP1 is shown as SEQ ID NO.1. The invention further provides a preparation method of the synergistic prevention and treatment composition for Frankliniella occidentalis. The chemical agent is spirotetramat or pyrafluxazole amide. The invention further provides a preparation method of the synergistic prevention and treatment composition containing the dsLCP1 and the chemical agent for the Frankliniella occidentalis. The invention further provides a control method for the plant Frankliniella occidentalis. The invention further provides application of the synergistic prevention and control composition containing the dsLCP1 and the chemical agent for the Frankliniella occidentalis to prevention and control of the Frankliniella occidentalis. The synergistic prevention and control composition containing the dsLCP1 and the chemical agent for the Frankliniella occidentalis provided by the invention solves the problems of prevention and control faults in an egg-adult stage of the Frankliniella occidentalis and insufficient prevention effect of the chemical agent. After compounding, the dosage of chemical agents can be reduced, and pesticide residues are reduced.

An attractant for Telenomus remus Nixon to control Spodoptera litura Fabricicus is provided. The attractant includes a solvent and at least one of the following components: 1,3-dichlorobenzene, benzothiazole, and octane. The attractant can effectively attract Telenomus remus Nixon to parasitize Spodoptera litura Fabricius eggs, such that the growth of a pest quantity is inhibited and the pest population gradually dies out, which achieves the purpose of pest control. The attractant is a green, non-toxic, and pollution-free attraction substance. Therefore, the attractant can solve a series of problems such as pesticide residues, environmental pollution, and food safety caused by chemical control, and is of great significance for the green control of Spodoptera litura Fabricius.

The invention relates to the field of pesticide preparations, and discloses a sterilization composition containing tetramycin and Saisentong as well as a preparation method and application of the sterilization composition. Tetramycin and Saisentong serve as active components of the composition, and a dual-structure composite lignin derivative system serves as a functional carrier; the system is composed of high-molecular-weight modified lignosulfonate and specific lignin phenol fragments with low polymerization degree. The high-molecular-weight component forms a physical barrier on the surfaces of active component particles, so that the storage stability and the application safety of the preparation are improved; the low-polymerization-degree component can be degraded by an extracellular enzyme secreted by citrus canker pathogen, so that the targeted release of the active component at the focus is realized. The composition disclosed by the invention effectively reduces the decomposition rate of the active components and the phytotoxicity risk to crops, and meanwhile, the field control effect on the citrus canker is remarkably improved. The composition provides an efficient and safe new choice with a targeting effect for chemical prevention and treatment of citrus canker.

The invention relates to the technical field of fruit tree cultivation, and discloses an apple deep-rooted cultivation method suitable for M9T337 rootstock, the apple deep-rooted cultivation method comprises the steps of nursery stock pretreatment, ditching and field planting, staged soil covering and chemical control management, rootstock cortex rooting is induced by combining layer-by-layer soil covering and chemical control measures, and the problems of shallow root system and poor stress resistance of the M9T337 rootstock are solved. According to the method, a complete technical chain of pretreatment, field planting, root inducing, regulation and maintenance is constructed, a continuous deep root induction environment is created through staged soil covering, and a deep root cultivation mode from passive adaptation to active induction is realized by matching with pretreatment of a composite agent to induce rooting and chemical control management to coordinate nutrient distribution. Practice shows that after M9T337 rootstock apple seedlings cultivated through the method are planted for one year, the proportion of deep root systems below 30 cm is increased to 45-50% from 15-20% of traditional cultivation, the length of main roots can reach 50-60 cm, root system distribution is more reasonable, and the deep water and fertilizer absorption capacity is remarkably improved.

The invention discloses a CO2 sustained-release capsule and a preparation method thereof. The CO2 sustained-release capsule comprises sodium alginate, corn starch, amyloglucosidase, saccharomyces cerevisiae and anhydrous calcium chloride, and a solvent is ultrapure water. The saccharomyces cerevisiae is Saccharomyces cerevisiae BNCC185415, and the saccharomyces cerevisiae is Saccharomyces cerevisiae BNCC185415. The mass ratio of the sodium alginate in the capsule preparation is 2.00%-3.00%, the mass ratio of the corn starch in the capsule preparation is 10.00%-30.00%, the content of the amyloglucosidase in the capsule preparation is 1.0-3.0 U / g, and the mass ratio of the saccharomyces cerevisiae in the capsule preparation is 10.0%-30.0%. Based on the general taxis of underground pests to CO2, the invention creates a CO2 sustained-release capsule which has remarkable attraction activity on the pests, and the underground pests can be trapped, killed, prevented and controlled by combining physical prevention and control, biological prevention and control, chemical prevention and control and other measures in practical application.

The invention discloses bacillus velezensis GJ5B6 and application thereof, and belongs to the technical field of biocontrol microorganisms, the preservation number of the bacillus velezensis GJ5B6 is CCTCC NO: M 20252105, and the bacillus velezensis GJ5B6 is preserved in China Center for Type Culture Collection on September 24, 2025. The bacillus velezensis GJ5B6 has remarkable inhibitory activity on pathogenic bacteria of the waxberry wilt disease and has a wide application prospect in the aspect of prevention and treatment of the waxberry wilt disease, and a theoretical basis and a strain resource are provided for development of environment-friendly biocontrol preparations; the biological agent prepared by taking the bacillus velezensis GJ5B6 as an active ingredient does not cause the problems of resistance of pathogenic bacteria, environmental pollution, pesticide residues and the like after being used for a long time, and is more environment-friendly and safer than a chemical control method.

The present application relates to the use of a pesticidal protein for controlling a thrips pest, the method comprising contacting the thrips pest with at least an ACh1 protein. The present application controls the thrips pest by producing the ACh1 protein capable of killing the thrips in bacteria and / or plants; compared with the agricultural control methods, chemical control methods, physical control and biological control methods used in the prior art, the present application protects the whole growth period and whole plant of the plant to prevent the thrips pest from invading, and has no pollution, no residue, stable and complete effect, and is simple, convenient and economical.

The invention relates to the technical field of electronic chemical engineering control, and discloses an energy management intelligent control method for preparing electronic-grade hydrofluoric acid. The method comprises the steps that historical energy parameters, production quality data and the current production state of the preparation process are obtained, the historical energy parameters comprise electric energy consumption, steam consumption, cooling water flow and reaction kettle temperature, and the production quality data comprise product purity, metal ion content, particulate matter number and output rate. And establishing a multi-modal energy efficiency model according to the data, wherein the model comprises a plurality of efficient production points corresponding to different energy parameter combinations. And then, the current production state is positioned, a nearest optimal efficient production point is determined, an energy efficiency situation field is established, an energy efficiency gradient is calculated, a progressive regulation and control path is constructed based on the gradient to generate a staged energy regulation and control instruction, and finally, the staged energy regulation and control instruction is sent to energy control equipment. The method realizes dynamic and accurate regulation and control of energy, optimizes energy utilization, guarantees product quality, and is suitable for large-scale production of electronic-grade hydrofluoric acid.

The invention relates to the technical field of sewage treatment, and particularly discloses a sewage treatment hybrid control method and system based on multi-angle venturi jet, which utilizes the kinetic energy of fluid to dynamically plan the opening number of branch pipes through an algorithm to maintain the critical flow velocity of the venturi. The method comprises the following steps: firstly, converting discrete water inlet kinetic energy into stable high-shear jet flow kinetic energy; furthermore, jet flow energy is converted into a three-dimensional strong turbulent flow field covering the whole area in the reaction bin by utilizing a multi-angle space vector jet layout, namely, through composite flow field design of tangential induction rotational flow, vertical drive convection and the like, so that short-circuit flow and a mixed dead zone are physically and thoroughly eliminated. Meanwhile, on the chemical control level, the scheme breaks through traditional linear adding logic, a nonlinear double-channel decision model covering turbidity requirements and alkalinity constraints is established, it is ensured that under the complex variable working conditions, load processing can be met, pH environment collapse can be avoided, and finally dual minimization of chemical consumption and energy consumption is achieved.

The invention discloses a method for breeding a new variety of Mimai No.18 by using corn and wheat distant hybridization, and relates to the technical field of crop genetic breeding, the method comprises the following steps: parent selection: selecting Mimai No.2 wheat as a female parent and functional 2009-1 black corn as a male parent; emasculation: performing emasculation treatment on the female parent ear, removing anther in each floret, then immediately sleeving the floret with a paper bag, and marking the name of the female parent variety and the emasculation date. A feasible method is provided for wheat breeding by carrying out distant hybridization on wheat and corn and combining an accurately controlled generation-adding propagation technology. According to the method, accurate and quantitative environment management guarantees normal completion of each growth stage, measures such as illumination supplement and chemical control cultivation are taken, and stable expression and selection of excellent characters are promoted. Finally, new materials with consistent characters and stable heredity are successfully bred, and a new technical approach is provided for genetic improvement of wheat.

The technical scheme of the invention discloses a pest and disease damage camera which is characterized by comprising a high-precision image acquisition module, a dynamic environment adaptation module, a central processing module and a real-time data transmission module. Another technical scheme of the invention is to provide a regional pest control system which is characterized by comprising the pest camera, a server and an unmanned aerial vehicle with an image acquisition function. According to the invention, 20 million-pixel multispectral imaging (including visible light, near-infrared and thermal imaging wavebands) is adopted, a lightweight AI algorithm (YOLOv7 model) is combined, 14 types of diseases and insect pests (the accuracy rate is greater than or equal to 90%) can be identified in real time, the weak light imaging quality is guaranteed through dynamic LED light supplement (the wavelength is 380-850 nm), grading early warning (ventilation and humidity reduction, targeted spraying and chemical prevention and treatment) is triggered through 5G transmission of data, and the quality of the disease and insect pests is guaranteed. The system is linked with a temperature and humidity sensor and a CO2 sensor, hidden insect pests such as leaf miners are early warned 48 hours in advance, and the prediction error is smaller than or equal to 8%.

An integrated PWR nuclear reactor that requires no refueling and is cooled by natural convection. It is housed within a reactor containment unit which is transportable to a placement site and placed within an underground building that allows heat transfer from the reactor to the surrounding soil. Tire reactor containment unit encloses an integrated PWR nuclear reactor, a pressure and chemical control system, a safety system and a turbo generator. After its operational life, the reactor's water and air are replaced with inert gases, circulating by natural convection to remove decay heat to the surrounding soil. This enables the integrated PWR reactor, initially designed to generate electricity, to act as a dry storage facility for uranium fuel elements after the end of its operational life.

This invention relates to a method for modeling the curing kinetics of polymer resins, specifically providing a method for fitting the curing kinetics of polymer resins based on a segmented model. The method employs a three-stage segmented kinetic model. In the first stage, an external catalytic model is introduced to quantify the inductive acceleration effect of the co-catalyst in the early stages of the reaction. In the second stage, the Kamal-Sourour model is used to ensure the fitting accuracy of the chemical control region. In the third stage, a diffusion correction term based on thermodynamic evolution is introduced to quantify the diffusion resistance caused by entering the glassy state in the later stages, significantly improving the fitting accuracy at the end of curing. More importantly, this invention creatively proposes a method based on the activation energy minimum point. α tr and dynamic glass transition point α vit The segmentation points effectively couple the external catalytic model, the Kamal-Sourour model, and the dynamic diffusion model, effectively solving the problem of inaccurate fitting of the full-cycle kinetics, improving the fitting accuracy, and providing data support for the fine-tuning of the curing process.

The present application relates to the Malus domestica Borkh cultivation technical field, specifically, it relates to a kind of greenhouse container seedling cultivation method for improving the ornamental of Malus domestica Borkh. Including the following steps, selecting the root control container of air permeability, preparation special cultivation substrate;Strong seedling is planted in root control container, is placed in shady environment and is carried out with slow seedling;Control day and night temperature, illumination and water nutrient;Water and fertilizer integration system is used to irrigation and fertilization;Use physical method of pinching, pull branch, ring cutting, and combine with the foliar spray of paclobutrazol;Through the coupling application of accurately regulated day and night temperature difference and photoperiod management, water and fertilizer integration and synergistic drought stress, and the organic combination of physical shaping and chemical control, the synergistic effect between temperature, illumination, water, nutrient and other factors is generated, so that the beneficial effects of inhibiting overgrowth, promoting branching, efficient inducing flower bud differentiation and shaping compact plant type are realized synchronously on the whole, and the ornamental quality and growth consistency of Malus domestica Borkh container seedling are improved.

This utility model relates to the field of insect trapping technology, specifically a chestnut elephant trapping device, comprising: an insect-attracting cover, a collector, and a attractant; the insect-attracting cover has an insect inlet at its lower end and an insect outlet at its upper end. When in operation, one side of the insect inlet is fixed circumferentially to the tree trunk, creating a passage between the other side of the inlet and the trunk for insects to enter; the collector contains a collection space, with its lower end covering the upper end of the insect-attracting cover, forming a collection groove between the lower end of the collector and the upper end of the insect-attracting cover to prevent insect escape; the attractant is located within the collection space and includes a main body with spiked protrusions on its outer wall, giving the attractant a shape resembling a spiky chestnut. The attractant is made of a dark red material, or its surface is covered with a layer of dark red material. This utility model overcomes the shortcomings of existing physical and chemical control methods, which easily disrupt the original ecological balance of chestnut trees and lead to environmental pollution.

The invention relates to the technical field of forestry robots and intelligent nondestructive testing, in particular to a tree body disease and pest detection robot based on knocking-echo analysis. The robot comprises a movable climbing mechanism, a variable-diameter mechanical claw driving mechanism and a knocking detection and intelligent marking mechanism. The movable climbing mechanism is matched with a tensioning wheel and a guide frame through a multi-connecting-rod suspension type main body frame, and self-adaptive climbing and stable attachment of the robot on the surfaces of different trunks can be achieved. The variable-diameter mechanical claw driving mechanism drives a transmission sliding block through a transmission motor and drives a clamping frame to achieve self-adaptive clamping of a tree. The knocking detection and intelligent marking mechanism drives a knocking mechanism to generate high-frequency mechanical knocking through a knocking motor, echo signals are collected through a sonic sensor, the positions of plant diseases and insect pests are positioned after the echo signals are analyzed and processed through a main controller, and accurate spraying marking is conducted through the intelligent marking mechanism capable of moving along a track. According to the invention, automatic and nondestructive detection and intelligent marking of plant diseases and insect pests in the tree body are realized, and the problems that the traditional manual detection efficiency is low, the chemical control pollution is serious and the existing robot lacks a tree interior detection function are effectively solved.

The invention relates to a compound preparation for preventing and treating tobacco mosaic disease and application thereof. Aiming at the problems that chemical control easily causes pesticide residues, biological control takes effect slowly and is unstable, the threshold of a gene editing technology is high and the like in the existing tobacco mosaic disease control technology, the invention provides a medicament compounded by azelaic acid and beta-aminobutyric acid according to a molar ratio of 1: (2-10). According to the agent, antioxidant enzyme systems such as SOD (superoxide dismutase), CAT (catalase) and POD (peroxidase) in tobacco plants are synergistically activated, and meanwhile, SAR (synthetic aperture radar) and SA / ABA double-signal channels are triggered, so that the self-defense capability of the plants is Experiments show that the SOD activity is improved by more than 40% after transplanting for 30 days after treatment by the medicament, and the CAT activity is improved by more than 125% after 60 days, so that the morbidity of the tobacco mosaic disease is obviously reduced, the disease index in 30 days is lower than 1.0, and the morbidity in 60 days is reduced by more than 10% compared with that of a control group. The method is easy and convenient to operate, environmentally friendly and free of residual risk, achieves the dual effects of early-stage rapid inhibition and long-term continuous control, and is efficient and safe in tobacco virus disease prevention and treatment.

The invention relates to a corn staggered plant planting and chemical control synergistic yield increasing method, which comprises the following steps that wide and narrow row staggered plant planting is adopted, the row spacing of corn comprises wide rows and narrow rows, the wide rows and the narrow rows are arranged in a staggered manner, the row spacing of the wide rows is 78-82cm, and the row spacing of the narrow rows is 38-42cm; two adjacent rows of corn plants corresponding to each narrow row are planted in a staggered manner, so that one row of corn plants are aligned to the midpoint position of a connecting line of two corn plants in the other row; the planting density per mu is 5500 to 6000 plants; a chemical control agent is sprayed twice in the growth period of the corn, the chemical control agent is a compound chemical control agent prepared by compounding ethephon and chlormequat chloride according to the mass ratio of 3: 1, and the chemical control agent is sprayed in the 8-leaf expansion period and the 15-leaf expansion period of corn plants in sequence; the total amount of the pesticide sprayed each time is 11.8-12.2 g / mu, and the concentration of the spraying liquid is 0.2 w / v% + / -0.05%. According to the method, wide-narrow row staggered plant planting and secondary chemical control are cooperated, and the purposes of stable lodging resistance and high yield are achieved under the condition of high close planting of corn.

The utility model discloses a medicament control device of an integrated circulating Fenton fluidized bed, which comprises a tank body, a stirring rotating shaft is arranged at the top in the tank body, a filtering structure is arranged between the inner part of the tank body and the outer wall of the stirring rotating shaft, and water outlet pipes are respectively arranged on two sides of the top of the tank body. According to the chemical control device of the integrated circulating Fenton fluidized bed, through mutual cooperation of the wastewater inlet pipe and the chemical adding structure, wastewater is conveyed into the tank body through the wastewater inlet pipe to be treated, the chemical adding structure is synchronously activated in the flowing process, and a chemical solution is accurately put into wastewater flow.

The invention discloses application of soybean GmVQ70 to improvement of soybean cyst nematode resistance, relates to the technical field of genetic engineering, and solves the problems that existing chemical control pollutes the environment and is difficult to implement crop rotation, and traditional breeding is long in period and prone to loss of resistance. The method comprises the following steps: 1, constructing an overexpression vector of the GmVQ70 gene to obtain a transformed strain; and 2, infecting soybean plant tissues by the transformed strain. The invention proves that the soybean GmVQ70 gene has the effect of regulating and controlling soybean cyst nematode resistance of soybeans for the first time. A receptor soybean plant is subjected to genetic transformation by using an overexpression vector of the GmVQ70 gene, and after soybean cyst nematode infection, the number of soybean root surface female insects can be remarkably reduced by 38.4% compared with a wild type, so that the resistance of soybeans to soybean cyst nematode is improved, and a gene resource is provided for soybean resistance breeding. The application and the method of the GmVQ70 gene play a key role in improving the resistance process of soybean cyst nematode, and a new molecular target can be provided for soybean precise molecular design breeding.

The invention belongs to the technical field of nuclear power plant hydrochemical control, and particularly relates to a method for controlling WANO chemical indexes in a starting period after overhaul of a nuclear power plant. In the first stage, small circulation flushing is conducted, specifically, condenser self-circulation is conducted firstly, then condenser-first and second low-pressure heater-third low-pressure heater-fourth low-pressure heater circulation is conducted, then condenser-sixth high-pressure heater-seventh high-pressure heater circulation is conducted, deaerator self-circulation is conducted, steam-water separator reheater shell side drainage and steam-water separator reheater first-stage drainage are conducted, and steam-water separator reheater second-stage drainage is conducted; second-stage hydrophobic flushing of the steam-water separator reheater; in the second stage, the condenser, a condensate pump, a second low-pressure heater, a third low-pressure heater, a fourth low-pressure heater, a deaerator, a main water feeding pump, a sixth high-pressure heater, a seventh high-pressure heater and the condenser are sequentially subjected to large-circulation flushing. According to the method, it is guaranteed that the time for the WANO index to meet the requirement at the starting stage after the unit is overhauled is as short as possible, it is guaranteed that the unit can smoothly improve the power, meanwhile, the unit capacity factor is improved, and the economic benefits and safety of the unit are improved.

The utility model relates to the technical field of medical equipment, and provides a general surgery wound cleaning device which comprises a bottom frame and a pair of side frames, the side frames are arranged on the two sides of the bottom frame, the supporting and adjusting assembly is arranged between the bottom frame and the side frames, the disinfectant box is arranged on the outer surface of the bottom frame, and the disinfectant box is arranged on the outer surface of the bottom frame. The washing assembly is arranged on the bottom frame and comprises a sleeve groove, the sleeve groove is formed in the top of the bottom frame, an anti-falling sleeve is arranged at the top of the bottom frame, a pair of inner rods are arranged in the bottom frame, the inner rods are slidably connected with a lifting frame in a sleeving mode, and a through opening is formed in the top of the lifting frame. And the bottom of the lifting frame is rotationally connected with a nozzle through a pin shaft. By means of the technical scheme, the problems that in the prior art, effective chemical control quantity treatment cannot be well conducted during flow control, and a large amount of cleaning waste liquid is generated in the wound cleaning process and is not easy to clean are solved.

The invention provides a pomacea canaliculata egg poisoning reagent and a pomacea canaliculata egg poisoning method, and belongs to the technical field of agricultural pest control. The invention provides a pomacea canaliculata ovum poisoning reagent. The active ingredient of the pomacea canaliculata ovum poisoning reagent comprises an aqueous extract of an oleander raw material; the oleander raw material comprises one or more of leaves, stems and flowers of oleander; the aqueous extract of the oleander raw material contains rutin and oleandrin. The active ingredients of the poisoning agent comprise water-soluble natural active ingredients in the oleander, so that the poisoning agent has the advantage of being environmentally friendly, and the problem that the environment is polluted by a traditional chemical control method is effectively solved. Moreover, the aqueous extract of the oleander raw material contains rutin and oleandrin, and the rutin and the oleandrin have a synergistic effect, so that the poison killing effect on the ampullaria gigas eggs can be remarkably improved, and the problem of low physical prevention and treatment efficiency is solved. The poison reagent provided by the invention is suitable for green and accurate prevention and control of pomacea canaliculata in an agricultural ecosystem, especially a rice field.

This invention belongs to the field of potato scab control technology, specifically relating to a fungal-agent composition for controlling potato scab and its application. The fungal-agent composition for controlling potato scab provided by this invention comprises the following raw materials: a chemical control agent for potato scab and a compound fungal agent; the volume ratio of the chemical control agent to the compound fungal agent is 75-150:5000; the compound fungal agent includes *Bacillus belyceta* BEV2 and *Bacillus atrophus* FM2-4. Using the fungal-agent composition of this invention can reduce the dosage of chemical agents by at least half, while providing rapid, long-lasting, and effective control of potato scab, and also taking into account the advantages of environmental friendliness.

The invention provides an accurate high-yield cotton cultivation method adaptive to differentiated climate of south and northern Xinjiang, which comprises a unified technical system taking early growth process control, high-density population construction and plant type optimization regulation as the core, and is combined with growth process accurate calculation, regional differentiated pre-sowing preparation and fine water, fertilizer and chemical control management in the whole growth period. The method is applied to under-mulch drip irrigation cotton planting areas in southern and northern The technical means of combining early sowing, seedling promoting and early topping is adopted, so that the cotton growth process is matched with the photo-thermal rhythm of a planting area. Through differentiated design of the seeds, the mulching film, the drip irrigation equipment and the water and fertilizer scheme, the low-temperature late spring coldness resistance of the cotton in northern Xinjiang is remarkably improved, and the emergence rate is stabilized to be 90% or above; compared with a traditional mode, water is saved by 10%-15%, the utilization rate of potash fertilizer is increased by 10%-15%, the emergence rate of saline-alkali soil is increased by 18%-22%, and the method is suitable for different planting environments in southern and northern Xinjiang.