Three notes of fertilization in winter
It is suitable to apply ammonium carbonate. In winter, the temperature is low, and ammonium carbonate is not easy to be volatile and decomposed, which is conducive to improving the utilization rate of fertilizer. , Can provide nitrogen nutrition for crops in time. According to tests, the application of ammonium bicarbonate in winter wheat fields increased the fertilizer efficiency by 1 to 1.5 times in the high temperature season. It is forbidden to apply urea. Urea belongs to ammonium nitrogen fertilizer and cannot be directly absorbed and used by crops after being applied to the soil. It needs to be converted into ammonium nitrogen by the urease secreted by urea bacteria in the soil to be absorbed by the root system. The rate of urea conversion depends mainly on soil temperature. If all the urea applied to the soil is converted into ammonium nitrogen, it takes 7 to 10 days at a ground temperature of 10 ° C, 4 to 5 days at 20 ° C, and only 2 to 3 days at 30 ° C. It can be seen that when crops are topdressed in winter or early spring, if urea is applied, it will often affect crop growth because of slow fertilizer effect. The absorption of phosphorus and zinc by the increased application of phosphorus and zinc fertilizers was significantly affected by temperature and light. Low winter temperatures and insufficient sunlight can easily induce phosphorus deficiency and zinc deficiency in winter crops. Phosphate and zinc fertilizers should be appropriately applied. In addition, phosphorus can enhance the cold resistance of plants, and increasing the application of phosphorus fertilizer is beneficial to the prevention and control of crop freezing damage. Disclaimer: Some articles on this website are transferred from the Internet. If you have third party legal rights, please inform this website to deal with them. phone Fresh Half Shell Mussel Meat,Half Shell Mussel Meat,Frozen Cooked Mussel Meat,Frozen Mussel Shengsi Xiangyuan Aquatic Products Co.,Ltd., , https://www.mytilus-edulis.com