Applying organic fertilizers plays an important role in increasing crop yield and quality. However, with the advancement of science and technology and the continuous improvement of soil fertility levels, it has been found in production that excessive application of organic fertilizer has produced many undesirable consequences, not only causing an increase in soil salt accumulation, but also in soil bulk density, organic matter, and agglomerates. Both microorganisms have negative effects and are not conducive to the normal growth of crops. In order to efficiently and effectively use organic fertilizer, experts reminded us to pay attention to the following three points:
The first is to choose high quality organic fertilizers. At present, more and more commodity organic fertilizers are being applied, but the quality of commodity organic fertilizers is generally low, and some of them are even doped with municipal sludge, household garbage, etc., and the standards for organic matter content are simply not reached. Even some of the chicken dung that was bought was soiled with dirt. Therefore, in the production, it is necessary to build up and use high-quality, non-polluting organic fertilizers, and fully decompose them. If you need to buy commodity organic fertilizer, you should use regular large manufacturers.
The second is to strictly control the amount of fertilizer. Under normal circumstances, the amount of control per acre per season vegetable plot is 1,500 to 2,000 kilograms of pure chicken manure or 50 to 100 kilograms of high-quality cake manure, and 3,500 to 4,000 kilograms of fully-complexed high-quality manure or manure. Fruit and tuber vegetable crops need a large amount of fertilizer, the upper limit can be taken; and green leafy crops need a relatively small amount of fertilizer, it is desirable to the lower limit.
The third is to apply bio-fertilizer. Biological bacteria in biological fertilizers can accelerate the decomposition of organic matter in organic fertilizers, making them more conducive to crop absorption. At the same time, they can decompose and transform some harmful substances in organic fertilizers to avoid damage to crops. Generally, when organic fertilizer is used as the base, 150-200 kg of biological fertilizer can be applied per acre. For topdressing, 20-25 kg of biological fertilizer can be applied per acre each time.
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