How to apply nitrogen fertilizer?
Nitrogen fertilizer is a kind of nutrient fertilizer that plants need during the growth process. When using it, we must pay attention to certain methods. If the method is wrong, its own fertilizer effect will not be able to play. Let's say that not only to ensure fertilizer efficiency, but also to improve fertilizer efficiency. Methods. According to the test, when the temperature is 29 and the soil moisture content is 13.6%, ammonium bicarbonate is applied on the surface, and after 12 hours volatilization loses 5.49%; while applying the same fertilizer deep to the soil layer below 6 cm, the volatilization loss is only 12 hours later. It is 0.3%. It can be seen that deep application of chemical fertilizers can increase the utilization efficiency of fertilizers.
Deep nitrogen fertilizer methods are: 1, deep base fertilizer. The fertiliser is installed on the plough frame. When the tractor is arable, the fertilizer is applied to the soil with the rake. 2, while deep sowing seed fertilizer. The fertilizer application device and the seeding device are installed in the same machine, and the fertilizer is applied deep below or below the seed while sowing. It is necessary to ensure that there is a 3 to 5 cm soil isolation layer between the seed fertilizers to prevent seed and fertilizer from mixing damaged seeds. 3, top dressing deep. In the process of growing crops, fertilizer fertilizing device or top dressing device is installed on the cultivator, completing the processes of trenching, loosening soil, row fertilizer and soil covering, and applying nitrogen fertilizer deep into the roots of crops.
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