How to improve the utilization rate of urea and other fertilizers in spring 2017
How to increase the utilization rate of urea and other fertilizers in spring 2017? Urea is the most concentrated amide nitrogen fertilizer in solid nitrogen fertilizer, containing 46% nitrogen, easy to use and high fertilizer efficiency. The utilization of urea after it is applied to the soil is usually only 45% to 50%. Therefore, how to apply urea to improve the utilization of urea, I think the following points should be done: First, deep application: the depth of fertilization is 10 to 12 cm, melt fertilizer in the soil, so that the fertilizer is in the moist soil layer, which is conducive to the conversion of urea and the evaporation of ammonia after conversion. Second, the early application of urea can not be directly used by the crop after it is applied to the soil. It needs to be converted before it can be absorbed by the root system. Therefore, urea needs to be applied early to prevent crops from being ripe and late. 3. Spraying: The urea has a small volume, is easily soluble in water, has strong diffusibility, is easily absorbed by the leaves and is not affected by the soil environment, and has high nutrient utilization rate. Fourth, mixed use: urea and organic fertilizer, phosphorus and potassium fertilizer, etc., can meet the needs of farming for various nutrients, and maximize the increase in fertilizer production. However, it should be noted that urea has a high nitrogen content, a large nutrient concentration, and a large hygroscopicity. Therefore, when applying top dressing, do not apply urea to the root of the crop, or drop the urea into the heart of the crop to avoid burning the seedlings. , affecting crop growth. This article URL: How to improve the utilization rate of urea and other fertilizers in 2017 Electric Eyebrow Remover,Electric Eyebrow Trimmer,Automatic Eyebrow Trimmer,Best Electric Eyebrow Trimmer Shenzhen Jie Zhong Lian Investment Co., Ltd. , https://www.meizons.com