Why should chemical fertilizer be applied deeply?

What are the benefits of deep application of chemical fertilizer? What is the appropriate depth of chemical fertilizer? How to apply chemical fertilizer deeply? The following farming help planting network is briefly introduced for netizens' reference. Many farmers are trying to save trouble and worry when fertilizing their crops. They spread chemical fertilizers on the surface of the fields, resulting in serious losses of fertilizer efficiency, at the same time aggravating environmental pollution, and crops can not get the corresponding nutrient demand, resulting in reduced crop production. Therefore, farmers should change this bad fertilization method and apply chemical fertilizer deeply, which can not only reduce the volatilization loss of chemical fertilizer, improve fertilizer utilization efficiency, help crops to better absorb and utilize, but also reduce environmental pollution and achieve the effect of increasing production and income. According to the experiment, after deep application of nitrogen fertilizer, the average utilization rate can be increased from 30% to 40%. Deep application of phosphorus and potassium fertilizer can reduce the loss of wind erosion, promote crop absorption, prolong fertilizer efficiency, and increase yield by 5% to 15%. 1. Seed fertilizer: as seed fertilizer, the chemical fertilizer is generally buried in the lower part of the seed or the lower part of the side. The fertilizer should be kept at a proper distance from the seed, usually 3cm to 5cm, in order to avoid burns to the seed. Therefore, for the chemical fertilizer used as a kind of fertilizer, the fertilization depth should be 5cm to 6cm. 2. Topdressing: the root system of the plant has been initially developed when topdressing is applied. If mechanical topdressing is used, the root injury should be reduced as far as possible, the depth of fertilization should not be too large, and the horizontal distance from the plant (lateral distance) should also be appropriate. In general, the topdressing depth of interrow topdressing, narrow row crops such as wheat and wide row crops such as corn should be 6 cm and 8 cm, respectively, and the lateral distance should be 10 cm and 15 cm respectively. 3. Base fertilizer: the action period of base fertilizer is in the late stage of crop growth, when the root system of the crop is mature, the plant is tall and dense, and topdressing in the root zone is difficult to operate, which mainly depends on the base fertilizer applied during soil preparation before sowing. The deep application of base fertilizer is usually 15-20 cm or more. And ploughing bottom fertilization is a simple and easy way. There are two main methods: one is to spread fertilizer on the surface and then plough into the soil; the other is to apply fertilizer into the furrow at the same time of ploughing. The above is to help the planting network to introduce the benefits and methods of deep application of chemical fertilizer. if you have a better supplement, please leave a message below and let us know.