The early stage of fertilization crops absorbs phosphorus at the seedling stage, and if the seedling stage is deficient in phosphorus, it will affect the later growth.
Fine fertilization of calcium superphosphate is easy to absorb moisture and agglomerate during storage. When applied, it is broken and sieved to facilitate root absorption.
The concentrated fertilization of phosphorus is easily fixed by the iron, aluminum and calcium in the soil, so it should be applied at the point and strip, so that the phosphorus is fixed around the seeds and roots, which is beneficial to the root absorption of the crop.
Layered fertilization Phosphate fertilizer has little mobility in the soil, and where it is applied, it does not move. Therefore, phosphate fertilizer should be applied in both the bottom layer and the shallow layer.
Mixed with nitrogen fertilizer, nitrogen fertilizer and phosphate fertilizer can balance nutrients, promote crop roots, and lay a foundation for high yield.
Appropriate fertilization of phosphate fertilizer is effective, and the application can control 2~3 crops at a time, so it is not necessary to apply phosphate fertilizer to each crop. Generally, it can be applied once every 1~2 years. At the same time, the appropriate dosage should be calculated according to the target yield and soil fertility of different crops, and the balance of three “nutritional meals†of nitrogen, phosphorus and potassium should be considered.
Phosphate fertilizer is applied due to soil. For example, superphosphate is an acid fertilizer suitable for neutral and alkaline soil application; and calcium magnesium phosphate is best used in acidic soil.
Fertilizers for crops are most suitable for crops that are particularly sensitive to phosphorus. The focus is on beans, potatoes, and melons, and the economic benefits are good.
Can not be mixed with alkaline fertilizers, such as plant ash, lime, etc. are strong alkaline substances, if used in combination, the effectiveness of phosphate fertilizer will be significantly reduced, which is unfavorable for crop yield increase, generally should be applied 7 to 10 days apart.
This article URL: Common knowledge of phosphate fertilizer: nine points of phosphate fertilizer use
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