Also known as stiff and sitting, rice seedlings mainly occur in the stage of rice returning green. Generally, early and middle rice are more serious than late rice. The main introduction is that the poisoning is stiff and there are two types of weakness. 1, poisoning stiff. Due to the toxic substances in the soil, the root poisoning became dark, and the physiological function was lost. The seedlings did not return to green. Even if they turned green, they did not give birth, and even the phenomenon of dead seedlings was called poisoning. The basic measures for prevention and control are to do a good job in the basic construction of farmland, improve drainage conditions, improve the quality of farming, rationally apply organic fertilizers, timely drain land for diseased field plots, improve soil ventilation, remove soil toxic substances, and combine the use of nitrogen. Phosphorus and potassium fertilizers are reduced. 2, lack of elements stiff. The lack of a certain element in the plant body caused the rice plant to become stiff, which is called lack of rigidity. The main types of rice lacking hormones are mainly phosphorus deficiency, rigidity of potassium deficiency, and zinc deficiency. Phosphorus deficiency is mainly caused by the increase and application of phosphate fertilizer. It has timely drainage of open field, increased soil temperature, improved soil ventilation conditions, eliminate reducing toxic substances, and promote the absorption of phosphorus in roots. Stiffness is mainly to improve the physical and chemical properties of soil, improve soil potassium supply capacity, increase potassium fertilizer, immediate drainage of the diseased fields, so that the rice plant as soon as possible to restore growth; lack of zinc is mainly through the cultivation of Zhuang, rational irrigation, adding zinc fertilizer Increase plant uptake of zinc nutrients. Disclaimer: Some articles in this website have been transferred from the Internet. If you are involved in third party legal rights, please inform this website. phone Facial Serum,Loreal Serum Face,Loreal Face Serum,Vitamin C Serum For Face Guangzhou Lingxue Cosmetics Co., Ltd , https://www.lxgj188.com