Herbicide-induced phytotoxicity
Once herbicide poisoning occurs, the types of phytotoxicity should be identified firstly, the causes of phytotoxicity should be analyzed, the severity of phytotoxicity should be estimated, and appropriate countermeasures should be taken. If the crops are lightly harmed, only the leaves produce temporary, contact-type phytotoxic lesions. Generally, no measures are needed. The crops can quickly return to normal growth. If the crops are heavily phytotoxic, the leaves will bleed and shrink. Abnormal shape, growth is significantly inhibited, it is necessary to take remedial measures; for severe phytotoxicity, growth continued to be severely inhibited or the growth point of death and even some plant deaths, estimated output loss of more than 60% or even dead of the land, should consider replanting , make up or destroy. Do not blindly use remediation agents during replanting. Under the guidance of the technical department, use suitable agents for detoxification and compensatory growth. Replant the crops that are tolerant to herbicides and have suitable growth periods to avoid secondary phytotoxicity.
For the land with lighter damage, the following measures can be taken to remedy:
Use antidote. Such as naphthalene anhydride, R-28725 is a selective seed dressing protection agent, can be absorbed by the seed, and inhibit the herbicide damage to crops in the roots and leaves, such drugs can protect corn from acetochlor, butachlor, etc. Herbicide damage.
Spray water wash. When the herbicide dosage is too large, measures shall be taken to remove the poison as soon as possible when the pesticide injury occurs or when it will occur. When the rice field appears phytotoxicity, the poisonous field water shall be immediately drained and the water shall be rinsed continuously for three to four times. Can also be combined with irrigation and drainage in the field applied lime powder (20 ~ 30 kg / acre), to neutralize acid herbicide, and continuous irrigation with water. In which soil treatment agent damage, in principle, flood irrigation is not used; stem and leaf treatment agent damage can be properly irrigated. If the phytotoxicity occurs due to the spraying of certain herbicides on the leaves and plants, the leaves of the crops affected by the phytotoxicity can be promptly sprayed with a large amount of fresh water and the water can be sprayed repeatedly 2 to 3 times to remove the drugs on the surfaces of the plants as much as possible. Increase phosphorus and potassium fertilizers, cultivating loose soil, and promote root development to enhance crop recovery.
If the injury occurs locally, rinse it with water or deep plowing, then make up the seedlings and increase the amount of available nitrogen fertilizer.
The damaged plots can be exposed for 3 to 5 days, followed by deep ploughing after rinsing with water or heavy rain, and sowing other crops after 15 to 20 days.
Apply quick-acting, high-quality foliar fertilizers or plant growth regulators. In crops where phytotoxicity occurs, urea or foliar fertilizers can be quickly applied to increase nutrients, promote crop growth and enhance their ability to recover; spraying plant growth regulators, gibberellins, alkaloids, and fungicides. Nitrophenol sodium, love more income.
Use safe protectors rationally. Activated carbon, etc. have a good degradation effect on herbicides such as Simazine. Such as using activated charcoal to package corn and other seeds, can reduce or prevent herbicides such as alachlor, 2,4-D butyl ester, and linuron on corn and other phytotoxicity. When sowing, the surface of the soil is soaked with 10 kg/mu of activated carbon powder, or activated carbon powder may be used locally on the crop to prevent Simazine from producing phytotoxicity on cucumbers, wheat, soybeans, etc.
Remove the more serious parts of the injury. This kind of measure is commonly used in fruit trees. Branches that are heavily damaged should be quickly removed to prevent the chemicals from continuing to conduct and permeate downwards, and they should be quickly watered to prevent further injury.
Shandong Chunyu Water-saving Irrigation Equipment Co., Ltd., founded in 2011, is located in Laiwu High-tech Zone, Jinan City. It is a high-tech enterprise focusing on innovative and efficient emitter mold manufacturing and emitter product research and development and production. After nearly ten years of innovation and development, it is the invisible champion enterprise in Shandong Province, and now it is in a leading position in this field in China.
Spring rain people-oriented, build talent highland. At present, the company has 16 high, fine and advanced technical personnel, and cooperates with a number of scientific research institutes, forming a mold design, emitter testing, flow testing and other professional technical personnel team. In recent years, it has obtained 3 invention patents, 33 utility model patents and 3 patent awards. In 2019, it was identified as an intellectual property advantage enterprise in Jinan. It has undertaken 4 provincial science and technology innovation projects and won 2 second prizes of Shandong Science and Technology Progress Award. The company has built Jinan drip emitter mold engineering technology research center, the company has a slow wire cutting, CNC machining center, precision EDM machine, 3D projection measuring instrument, CNC engraving, laser engraving and other advanced processing equipment. Mature technology and rich experience support the excellent quality of Chunyu. Spring Rain pays attention to every link of production, implements 8S management, strictly controls the quality of products at the beginning, the middle and the end, and forms the seamless link of production management. The company has independently researched and developed flat emitter molds with full hot runner, cylindrical emitter molds with full hot runner and other products. With excellent quality, competitive price and good after-sales service, the company is well known at home and abroad, and has been sold well in Egypt, India, Iran, Turkey, Saudi Arabia, the United States and other countries.
With the vision of "building a global professional emitter mold supplier" and the mission of "providing solutions for efficient and innovative production of global water-saving irrigation enterprises", the company takes "scientific and technological innovation to scale new heights; Keep improving, the pursuit of excellence; Honesty and trustworthiness, win-win cooperation "for the values of the enterprise. For the construction of water - saving and resource-saving society to make a positive contribution.
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Shandong Spring Rain Water Saving Irrigation Equipment Co.,Ltd. , https://www.drippermould.com