What plants are suitable for superphosphate and how to use it best

1. Suitable plants

Superphosphate is widely used in various food crops and cash crops such as rice, wheat, corn, sorghum, cotton, fruits, and vegetables. At the same time, it can be applied in most soil types such as red soil, yellow soil, brown soil, loess soil, black soil, brown soil, purple soil, and white pulp soil. It is especially suitable for application in phosphorus-deficient areas such as North China, Northeast China, and Northwest my country. Superphosphate can be used as basal fertilizer, foliar fertilizer, and foliar spray, and can promote plant germination, root growth, branching, fruiting, and maturity. Pure superphosphate is dark gray or off-white, powdery, sour, corrosive, and soluble in water.

2. How to use

The utilization rate of superphosphate is low, generally only 10% to 25%. The main reason is that after being applied to the soil, the water-soluble phosphoric acid in the fertilizer is easily fixed and has a short movement distance. Therefore, it is best to reduce the contact area with the soil when applying superphosphate and increase its contact with the roots.

Whether used as base fertilizer, seed fertilizer or topdressing, concentrated application will have better results. It can also be applied in layers. Superphosphate can be applied to the bottom or middle layer of the soil during deep plowing and deep turning, and applied to the soil surface during sowing or planting. Secondly, it can be mixed with organic fertilizer to reduce phosphorus fixation. In addition, it can be made into granular fertilizer to increase the fertilizer effect time. In addition, spraying superphosphate on the roots can prevent phosphorus from being fixed in the soil and can be directly absorbed by crops.