High quality organic fertilizer is the foundation of high-quality and high-yield vegetables, but the organic fertilizers used by vegetable farmers nowadays are mostly purchased commercial organic fertilizers with generally poor quality, some even mixed with urban sludge, household waste, etc., which cannot meet the standard of organic matter content.

Even some purchased chicken manure is often mixed with soil or mixed with caustic soda (to increase volume) by some illegal vendors. The effect of these inferior organic fertilizers when applied to the soil can be imagined. Therefore, high-quality organic fertilizers must be selected in production, and it is better to choose regular large factories when selecting commercial organic fertilizers.

In general, it is advisable to apply 15-20 cubic meters of pure chicken manure and 35-40 cubic meters of rice husk manure per acre of vegetable land. Eggplant and fruit vegetables require a large amount of fertilizer, and their upper limit can be taken; Leafy vegetables require slightly less fertilizer, and their lower limit can be taken.

Organic fertilizer is better combined with biological fertilizer application, regardless of whether it is applied as a base or as a flush. Because when organic fertilizer is applied in combination with biological fertilizer, the biological bacteria in the biological fertilizer can accelerate the decomposition of organic matter in the organic fertilizer, making it more conducive to crop absorption. At the same time, it can decompose and transform some harmful substances in the organic fertilizer, avoiding their harm to vegetables.

Experts remind that in agricultural production, farmers generally apply organic fertilizers in combination with chemical fertilizers. However, soil and fertilizer experts point out that organic fertilizers can be combined with nitrogen fertilizers, but should not be combined with phosphorus fertilizers. Farmers need to overcome the misconception of combining organic and phosphorus fertilizers.

Applying organic fertilizer followed by nitrogen fertilizer can significantly increase crop yield; If organic fertilizer is applied followed by phosphorus fertilizer, the yield increase effect will significantly decrease, and the higher the amount of organic fertilizer used, the greater the decrease. The above situation has not only been proven in experiments, but also in multiple production practices. Therefore, organic fertilizer and nitrogen fertilizer can be applied together, but they should be applied separately from phosphorus fertilizer.