Fertilizer application method to prevent soil compaction

Abstract

The invention discloses a chemical fertilizer application method for preventing soil compaction. The chemical fertilizer application method comprises the following steps: Step 1, applying base fertilizer: fermenting animal manure to obtain organic fertilizer, and mixing the organic fertilizer and microbial agent at a ratio of 110:1 The weight ratio of ~150:1 is evenly mixed and spread evenly in the land, and then plowed 10-30cm; after plowing, cover the soil surface with degradable plastic film, mix nitrogen fertilizer, phosphorus fertilizer and active adsorbent and evenly spread on the degradable plastic film Cover the upper layer with 3 to 15 cm of soil after spreading; step 2, topdressing: mix nitrogen, potassium, humic acid and trace elements during the gestation period of the crops and then topdress; step 3, plowing: after the crops are harvested plowing, and covering the soil surface with plastic film after plowing; the method of applying chemical fertilizers is suitable for planting highland barley in areas above 1500m above sea level. The invention utilizes the degradable mulch film to separate and apply the organic fertilizer microbial bacterial agent mixture from the nitrogen fertilizer and the phosphate fertilizer, which can significantly improve the effects of preventing soil compaction, preventing pH rise and improving soil fertility.

Description

technical field [0001] The invention relates to a chemical fertilizer application method, in particular to a chemical fertilizer application method for preventing soil compaction. Background technique [0002] High-altitude areas refer to areas above 1500m above sea level. In high-altitude areas, due to the fragile ecosystem, rare animals and plants, and weathering, the soil layer is shallow, and because of the low temperature, the soil freezes for a long time and has poor ventilation, so it can be planted The soil is poor. High soil pH is also common in high-altitude areas. Taking several major areas of Tibet as an example, 50% of the agricultural planting areas in Lhasa, Qamdo, Shannan, Rikeze, and Ngari have a soil pH greater than 7.5. %above. Generally, crops are most suitable for growth in neutral or near-neutral soil. The soil with a pH greater than 7.5 is slightly alkaline, and the availability of soil nutrients is low, which is not conducive to the healthy developm...

AI Technical Summary

Problems solved by technology

However, due to the poor soil fertilizer efficiency and high pH in high-altitude areas, and the high-altitude agricultural areas have extremely cold climate, high altitude, low temperature, short frost-free period, large temperature difference between day and night, and little precipitation, the growth environment of highland barley is poor, and it is difficult to provide highland barley. necessary calories

Therefore, in the process of planting highland barley, chemical fertilizers with quick effects are often used to increase the yield. The types of fertilizers used are relatively single, and there is generally a problem of large amounts of chemical fertilizers. This method of fertilization will further increase the pH value of the soil, acid Salt deposition destroys the aggregate structure of the soil, leading to serious soil compaction, resulting in poor water retention, fertilizer retention, and air permeability of the soil, and reduced soil fertility, which seriously affects the yield of highland barley

Moreover, the long-term and large-scale application of chemical fertilizers will further increase the pH value of the land, which will cause greater damage to the originally barren land. After the soil is alkalized for a long time, a saline-alkali land will be formed. The saline-alkali land is not suitable for growing any crops, and even leads to soil erosion and damage. ecosystem

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