Summer eggplant nitrogen fertilizer is stressful

The right amount of eggplant requires the largest amount of nitrogen fertilizer, but in the high temperature season, the urea should be controlled within 30 kg per mu. Because of the high temperature season, the conversion rate of urea after applying the soil is faster. After the plant meets the needs, the excess will be Caused by loss. Especially in sandy soils, the proportion of loss will be greater. The application rate of ammonium bicarbonate per mu per mu is not more than 40 kg, and the application amount is too large, in addition to causing nutrient loss, it will also cause ammonia damage to eggplant leaves and fruits.
Appropriate vegetable farmers are applying fertilizers, and it has become a habit to use water, but this method should not be used in the summer high season. Because of the higher temperature, when the fertilizer is applied, a large amount of ammonia vapor will reduce the fertilizer efficiency, especially ammonium bicarbonate, which is more likely to cause ammonia poisoning of eggplant. It is best to use ditching or acupoint application. The thickness of the buried soil after top dressing should be no less than 5 cm to reduce the volatilization of the active ingredients of the fertilizer.
Reasonable matching with eggplant Although the amount of nitrogen fertilizer is large, but phosphorus and potassium fertilizer is also indispensable, it is not possible to apply nitrogen fertilizer every time when topdressing. In the fruiting period, it is best to apply 2 times of ternary compound fertilizer, the total of 2 times per mu should be no less than 40 kg to meet the needs of eggplant growth and results.
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