How to apply calcium magnesium phosphate fertilizer for better results
How to apply calcium magnesium phosphate fertilizer well? Calcium magnesium phosphate fertilizer is a multi-element fertilizer mainly containing phosphorus, along with calcium, magnesium, silicon and other components. Calcium magnesium phosphate fertilizer is insoluble in water, non-toxic, non-corrosive, not easily moisture-absorbing, not easily caking, and is a chemically alkaline fertilizer. It is widely suitable for various crops and phosphorus-deficient acidic soils. Application metho...
How to apply calcium magnesium phosphate fertilizer well?
Calcium magnesium phosphate fertilizer is a multi-element fertilizer mainly containing phosphorus, along with calcium, magnesium, silicon and other components. Calcium magnesium phosphate fertilizer is insoluble in water, non-toxic, non-corrosive, not easily moisture-absorbing, not easily caking, and is a chemically alkaline fertilizer. It is widely suitable for various crops and phosphorus-deficient acidic soils. The application methods are as follows:
1. It is most suitable for deep application as a base fertilizer. After calcium magnesium phosphate fertilizer is applied to the soil, the phosphorus in it can only be dissolved by weak acids, and it must undergo a certain transformation process before it can be used by crops, so its fertilizer effect is relatively slow, and it belongs to slow-release fertilizers. Generally, it should be combined with deep ploughing, and the fertilizer should be evenly applied into the soil so that it mixes with the soil layer, which facilitates dissolution by soil acids and helps crop absorption.
2. Mix and compost with more than 10 times the amount of high-quality organic fertilizer for more than 1 month. The well-composted fertilizer can be used as a base fertilizer, seed fertilizer, or for dipping rice seedling roots.
3. Points to note when applying calcium magnesium phosphate fertilizer: 1. Calcium magnesium phosphate fertilizer used in combination with single superphosphate and nitrogen fertilizer has a relatively good effect, but it cannot be mixed and applied with them. 2. Calcium magnesium phosphate fertilizer generally cannot be mixed and applied with acidic fertilizers, otherwise it will reduce the fertilizer effect. 3. The amount of calcium magnesium phosphate fertilizer used should be appropriate, and the amount per mu should generally be controlled at 15-20 kg. If too much calcium magnesium phosphate fertilizer is applied, not only will the fertilizer utilization rate not increase, but it will also decrease. Usually, when 35-40 kg of magnesium phosphate fertilizer is applied per mu, it can be applied every other year. 4. Calcium magnesium phosphate fertilizer is most suitable for application to crops with a strong ability to absorb citrate-soluble phosphorus, such as rapeseed, radish, legume crops, and cucurbit crops.
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