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1. Choose high quality organic fertilizer.
At present, there are more and more varieties of commercial organic fertilizers on the market, but the quality of commercial organic fertilizers is generally not high, and some even dope with urban sludge, domestic garbage, etc., and fail to meet the standard of organic matter content. Therefore, high-quality, non-polluting organic fertilizer must be used in production and fully decomposed. If you need to buy commercial organic fertilizer, you should use the regular large manufacturers.
2. Strictly control the amount of fertilizer applied.
Under normal circumstances, the control amount of vegetable land per acre per season is 1500-2000 kg of pure chicken manure or 50-100 kg of high-quality cake fertilizer, and fully-fertilized high-quality human and animal manure is 3500-4000 kg. Fruit and tuber vegetable crops require a large amount of fertilizer, which can be taken as an upper limit; while green leafy crops require a relatively small amount of fertilizer, the lower limit can be taken.
3. Cooperate with biological fertilizer.
The biological bacteria in the biological fertilizer can accelerate the decomposition of the organic matter in the organic fertilizer, making it more conducive to the absorption of the crop, and at the same time decomposing and transforming some harmful substances in the organic fertilizer to prevent damage to the crop. Generally, when the organic fertilizer is applied, the biological fertilizer can be applied in an amount of 150 to 200 kilograms per mu; for the application, the biological fertilizer can be applied in an amount of 20 to 25 kilograms per acre.
Scientific and rational application of organic fertilizer
The application of organic fertilizer plays an important role in improving crop yield and quality of agricultural products. However, with the advancement of science and technology and the continuous improvement of soil fertility level, it has been found in production that excessive application of organic fertilizer has produced many adverse consequences, which not only caused the accumulation of soil salt, but also the soil bulk density, organic matter and aggregates. And microbes and other adverse effects, is not conducive to the normal growth of crops. Therefore, we must pay attention to the following three points:
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