Eggplant needs to be enlarged, but fertilization should be suitable for high-temperature eggplant to apply nitrogen fertilizer.

Eggplant has a large demand for nitrogen fertilizer, but in the high temperature season, the amount of nitrogen fertilizer should be appropriate, the method should be appropriate, at the same time, with other fertilizers, play a due effect.

Topdressing eggplant

First, it should not be too big. Because in the high temperature season, after urea is applied to the soil, the transformation speed is fast, and after the demand for eggplant is met, the excess part will be lost. Especially in sandy soil, the proportion of loss is greater, for this reason, the application of urea per mu of eggplant should be controlled within 30 kg, and the amount of ammonium bicarbonate should not exceed 40 kg per mu. If the application amount is too large, in addition to nutrient loss, eggplant cotyledon fruit will also be damaged by ammonia, so it should not be too large.

Second, it is necessary to apply it deeply. Vegetable farmers are used to applying chemical fertilizer with water, but it is not suitable to use this method in summer, because the temperature is high, when chemical fertilizer is applied, a large amount of ammonia is volatilized, which reduces fertilizer efficiency, especially ammonium bicarbonate, which is easy to make eggplant ammonia poisoned. therefore, ditch application or hole application can be used, and the thickness of buried soil after topdressing should be greater than 5cm to reduce the volatilization of chemical fertilizer.

Third, balanced fertilization. Eggplant is in great demand for nitrogen fertilizer, but phosphorus and potassium fertilizer is also indispensable. therefore, in order to achieve balanced fertilization, we should not apply nitrogen fertilizer alone during topdressing, and it is best to apply ternary compound fertilizer twice in the full fruit period. the total amount of eggplant twice per mu should not be less than 40kg to meet the needs of eggplant growth and fruit.