Nitrogen fertilizer in dry land

In general, the utilization rate of nitrogen in dry land is not high, mainly due to the ammonia volatilization, nitrate leaching and denitrification denitrification in dry land. In order to improve the effect of nitrogen fertilizer application in dryland and reduce the loss of nitrogen volatilization, special attention should be paid to the following three points when applying nitrogen fertilizer:

Grab the key period

The effects of nitrogen fertilizer application at different growth stages of crops are different. Generally speaking, crops require less nitrogen during seedling stage and more nitrogen during heading stage. For example, before and after flowering, the application of nitrogen fertilizer can significantly increase yield.

Deep application

Deep application combined with covering soil, nitrogen fertilizer applied to the soil layer 6 to 10 cm deep under the topsoil can reduce the loss of nitrogen volatilization and increase the utilization rate of nitrogen fertilizer. The soil moisture content is suitable, and the ditch is ditched before sowing, and the fertilizer is applied under the seed or on both sides to improve the fertilizer efficiency.

Combined with organic fertilizer

Organic fertilizers have comprehensive nutrients that can improve soil and increase soil fertility. The organic fertilizer is applied to dryland all year round, which can fertilize the soil and enhance the ability of soil water retention and fertilizer retention. For example, if the nitrogen fertilizer is applied in a dry land, high yield may be obtained in a short period of time, but after a long period of time, the soil quality will be deteriorated and the effect of applying nitrogen fertilizer will be greatly reduced. The combination of nitrogen fertilizer and organic fertilizer can achieve the goal of high yield, stable yield and high quality.
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