What is nitrogen fertilizer? What are nitrogen fertilizers?

Nitrogen fertilizer is a nitrogen-based fertilizer. Reasonable application can improve the quality of agricultural products and increase crop yield, but unreasonable application will also hinder crop flowering and reduce yield. Therefore, when applying nitrogen fertilizer, it is necessary to follow the target yield of crops. As well as the nitrogen supply capacity of the soil to determine the specific application rate, and adopt the method of deep application to promote better root development, and if necessary, it can be used in combination with other fertilizers.

What is nitrogen fertilizer？

Nitrogen fertilizer is a kind of fertilizer mainly composed of nitrogen element. Applying an appropriate amount of nitrogen fertilizer to crops can not only increase the yield of crops, but also improve the quality of agricultural products. When crops lack nitrogen, the branches will be thin and the roots will be sparse. If the amount of nitrogen applied is too much, it will hinder the flowering and fruiting of crops, thereby affecting the yield, so nitrogen fertilizers need to be used rationally.

How to Use Nitrogen Fertilizers？

Nitrogen fertilizer should be applied deeply, which can not only reduce the loss of fertilizer after direct volatilization, but also promote the development of root system, make the root system penetrate deeply, and expand the nutrient area.

Generally, a reasonable combination of nitrogen fertilizer and organic fertilizer can be applied before application, which can not only promote high and stable crop yields, but also have the effect of fertilizing the soil.

A reasonable combination of nitrogen and phosphorus fertilizers can improve the application effect of nitrogen and phosphorus fertilizers.

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Determine the specific application amount of nitrogen fertilizer according to the target yield of crops and the nitrogen supply capacity of the soil, so as to avoid excessive or insufficient application, and then cause unnecessary losses.

What are nitrogen fertilizers?

Nitrogen fertilizers generally include urea, ammonium sulfate, ammonium chloride, ammonium bicarbonate, and ammonium nitrate. Among them, urea is one of the common nitrogen fertilizers. It belongs to organic nitrogen fertilizer. It is often used as base fertilizer and topdressing fertilizer, and sometimes as seed fertilizer.

Urea has a wide range of uses. In addition to being used as a fertilizer, it can also be used to prevent pests and diseases. Usually, gurea, washing powder, and water in a ratio of 4:1:400 mixed evenly, it can be used on fruit trees, vegetables and cotton, it can control pests such as aphids, spider mites, cabbage caterpillars, etc., and has a good insecticidal effect.

At the same time, urea can also be used to adjust the amount of flowers. Generally, in order to overcome the large and small years of the apple field, in small years, 0.5% urea aqueous solution can be sprayed on the leaves 5-6 weeks after flowering. Improve the nitrogen content of the leaves, so that new shoots can grow quickly, and ensure the appropriate amount of flowers in the big year.