Four kinds of nitrogen fertilizer on fruit trees are not right
First, nitric acid can not be applied during the growth of fruit trees can easily absorb nitrate nitrogen fertilizer, if the application of ammonium nitrate fertilizer, nitrate ions absorbed by fruit trees are too much food can easily cause savings poisoning. The second is that the application of ammonium bicarbonate can not be very unstable and volatile. Therefore, whether ammonium bicarbonate is used as a basal fertilizer or topdressing, it should be applied in the wet orchard, and the soil should be covered immediately after application. If the soil is particularly dry, it is better to apply it after watering. Third, it is not possible to repeatedly apply ammonium sulfate acidic soils to orchard soils of slightly alkaline soils. If ammonium sulfate is continuously applied, the acidity of the soil will increase, resulting in soil compaction, affecting the root activity of fruit trees, and causing poor fruit tree growth, resulting in fruit yield and quality. Severe decline. Fourth, can not immediately apply water after urea nitrogen contained in urea in the role of soil microorganisms into ammonium carbonate can be absorbed and used by the roots of fruit trees, if watered immediately after application of urea, it is easy to make a large number of nitrogen loss. Therefore, whether urea or topdressing fertilizer, should be applied 5 to 7 days before watering. YT-H711 YT-H711 Shenzhen Sunshine Technology Co.,Ltd , https://www.yatwin.com