Fruit tree fertilization four bogey

It is easy to absorb nitrate nitrogen fertilizer during the growth of ammonium nitrate fruit trees. For example, after the application of ammonium nitrate, the nitrate ions absorbed by the fruit trees are easily consumed by excessive consumption.

 

Two bogey water shortages of ammonium bicarbonate are extremely unstable and volatile. Therefore, when applying ammonium bicarbonate to fruit trees, whether it is used as a base fertilizer or as a top dressing, it should be applied in the case of wet orchard, and the soil should be covered immediately after application. If the soil is particularly dry, it is better to apply ammonium bicarbonate after watering.

 

Three bogey repeated application of ammonium sulfate in the orchard from acidic soil to slightly alkaline soil. If continuous application of ammonium sulfate, the acidity of the soil will increase, which will easily cause soil compaction and affect root activity, resulting in poor growth of fruit trees, resulting in yield and quality. Severe decline.

 

After nitrogen is applied, the nitrogen contained in the urea under the action of soil microorganisms can be absorbed and utilized by the roots of the fruit trees after being converted into ammonium carbonate. If water is applied immediately after urea application, it is easy to cause a large loss of nitrogen. So, regardless of urea as basal or top dressing as should the administration 5--7 days after watering, to avoid losses.