How to scientifically select and use compound fertilizer
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How to choose a good compound fertilizer?
First, we must use the products produced by regular manufacturers.
Because the production equipment and production technology of the regular manufacturers are very advanced, the produced products have uniform particles, balanced nutrients and stable quality. Moreover, the product formula is developed by experts on the soil nutrient status and crop characteristics, and has been developed through long-term experiments. The formula is reasonable, targeted, nutrient-rich, and sufficient in content.
Second, according to the local soil conditions, rational selection of compound fertilizer
Fertilizers are acidic and alkaline, and the soil is the same. For example, if the saline-alkali soil is used, the acid compound fertilizer with nitrogen sourced from ammonium nitrate should be used, which can supply the nutrients needed by the crop and reduce the alkalinity of the soil. At the same time, the adverse effects of “chlorine†and “salt damage†on crops are also avoided.
Third, the choice of compound fertilizer must calculate the input and output ratio
The choice of compound fertilizer must calculate the input and output ratio, and choose the compound fertilizer with reasonable price. Because the key issue of increasing production and income in agriculture is the reduction of agricultural costs, it is important to choose a fertilizer with good quality and reasonable price, otherwise it will not be worth the candle.
What problems should be paid attention to when using compound fertilizer?
1. Compound fertilizer is generally used as base fertilizer or fertilizer.
When making the base fertilizer, before planting, when applying the soil, generally apply 10 to 20 cm below the plough layer; when planting the fertilizer, be sure to pay attention to the isolation of the seed fertilizer, generally 5 to 6 cm below the plough layer.
Second, fertilization should be reasonable
The application of compound fertilizer is not the more the better, blindly multi-application of compound fertilizer, not only the cost increase, but also easy to produce burning, burning seedlings affect the rational absorption of nutrients by crops and so on. When using, it must be based on the product instructions, combined with the past fertilization dosage in the region, to calculate a reasonable amount of fertilizer.
Third, the application of compound fertilizer is not a once and for all
Because compound fertilizer can meet most of the needs of various nutrients in crop growth and development, in the rapid growth period of crops such as heading, filling stage, etc., the demand for nitrogen is very large, and nitrogen fertilizer must be applied as appropriate, otherwise it will be The yield has a great influence, even if the nitrogen fertilizer of the compound fertilizer uses long-acting urea.