Apply phosphate fertilizer this way, and crops will resist drought and increase income
Crops absorb phosphorus fastest during the seedling stage, and the seedling stage is also the critical period for phosphorus nutrition. If phosphorus is deficient during the seedling stage, it will affect the later growth of the crop. In our province, spring temperatures are low, soil microbial activity is weak, and the release of soil available phosphorus is low. In addition, low soil temperature weakens the root system's ability to absorb nutrients, making it difficult to meet the crop's needs during the critical period of phosphorus nutrition. ...
Available phosphorus in the soil generally cannot meet the needs of high-yield rice. Applying phosphate fertilizer to increase available phosphorus in the soil is an important method in agricultural production.Rice farmers in our province generally apply phosphate fertilizer annually as a hectare-based base fertilizer (bottom fertilizer), applying 100-150 kg of diammonium phosphate at one time, or at least 70-80 kg. It is broadcast during water harrowing. The fertilizer contact area is large. After phosphate fertilizer is applied to the field, it cannot move or diffuse. If the rice root system does not extend to it, it cannot be absorbed and used.
At present, the fertilizer utilization rate for rice in the current season in cold regions is roughly 30-60% for nitrogen fertilizer, 10-25% for phosphate fertilizer, and 40-70% for potassium fertilizer. Now most use tray seedling raising, and the roots are tightly bound. When transporting seedlings, just roll up the seedling trays and transport them directly to the field edge to load them onto the transplanter. The seedling-raising nutrient soil and carried fertilizer are directly transplanted into the field along with the seedlings. In the past, using a single phosphate fertilizer still increased yield. Now phosphate fertilizer is applied in the seedbed and mixed with phosphate bacteria fertilizer, applying 250 grams per square meter of seedbed. Calculated at 120 square meters of seedling raising per hectare, only 27-30 kg of diammonium phosphate fertilizer is needed, plus 30 kg of phosphate bacteria fertilizer mixed together and broadcast on the seedbed 2-3 days before lifting the seedlings, then sprayed with water once, so that the fertilizer and bacteria tightly adhere around the rhizosphere of the seedlings, and go into the field with fertilizer. The main field then no longer needs phosphate fertilizer. At present, phosphate fertilizer prices have soared, and this technique can greatly save phosphate fertilizer and reduce production costs.