During the spring planting season, the author learned from some counties and cities in Shanxi Province to investigate the adjustment of planting structure. They have different views on the application of bio-organic fertilizer. Some farmers said that bio-organic fertilizer is good, and not only the crop yield is high, but also the pests and diseases are low. Moreover, the quality of agricultural products is good; some say that the effect is generally after application, and the effect of increasing production and quality is not outstanding; others say that it has no effect or even a negative effect. The same is bio-organic fertilizer, why is there such a big contrast in the evaluation? I believe that these questions should be answered from the following aspects.
First, organic fertilizer can improve the soil. At present, the application rate of chemical fertilizers and pesticides is high, the soil compaction is serious, the organic matter content is decreased, the fertilizer application is increased, and the soil fertility function is weakened, which makes the input-output ratio imbalance. In order to improve the yield and quality of agricultural products, it is necessary to improve the ecological environment of the soil (warm, light, water, nutrients, gas, etc.) and change the living environment of the crops in order to truly see the actual results. In recent years, the No. 1 Document of the Central Committee has repeatedly mentioned that to achieve agricultural modernization, we must vigorously do a good job in soil testing and fertilization, and increase the application of organic fertilizer. It can be seen that the promotion and application of organic fertilizers has been mentioned at a very high level.
Second, it is necessary to distinguish the variety and quality of bio-organic fertilizers. There are many kinds of bio-organic fertilizers on the market. The brands have real and fake, the quality is superior and inferior, the nutrient content is high and low, and the farmers should carefully identify them when purchasing, to see if there is a fertilizer registration certificate, production and operation license, etc. Be sure to request an official invoice and leave your credentials.
Third, pay attention to the methods of storage and application. The nutrient content of bio-organic fertilizer is relatively abundant, and it is accompanied by beneficial microbial strains, but its fertilizer efficiency is slower than that of chemical fertilizers. When purchasing and applying, farmers should pay attention to the following points in technology:
First, the purchased bio-organic fertilizers cannot be stored together with chemical pesticides to prevent damage to functional microorganisms while avoiding direct sunlight. Second, bio-organic fertilizers should be applied in combination with chemical fertilizers to release quick-acting and delayed-acting nutrients in batches for crop absorption; It is best to mix and apply crops in combination with high-content compound fertilizers. If used on green leafy vegetables, it should be applied with compound fertilizer with higher nitrogen content. If applied to root-crop crops, it should be applied. The compound fertilizer with higher potassium content; the fourth is to be applied when the sensation is suitable. If there is continuous drought, it should be watered in time after application; the fifth is to ditch deep application, or first apply and then plow the burial.
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