The application of organic fertilizer is enough.

For a long time, people have blamed soil deterioration entirely on excessive use of chemical fertilizers, and then thought that more organic fertilizer can not only improve crop yield and quality, but also nourish and fertilize the land. Therefore, in recent years, many vegetable farmers have spared no expense to increase the application of organic fertilizer. However, excessive application of organic fertilizer will also affect the physical and chemical properties of the soil, and in serious cases will lead to a series of adverse consequences, such as soil salt accumulation, affecting crop growth. So, how to apply organic fertilizer is scientific and reasonable? The author believes that attention should be paid to the following points: pay attention to the selection of high-quality organic fertilizer High-quality organic fertilizer is the basis for high quality and high yield of vegetables, and now the organic fertilizer applied by vegetable farmers, mostly purchased commercial fertilizer, generally low quality, some even doped with urban sludge, domestic garbage, etc., simply can not reach the standard of organic matter content. Even some chicken manure bought, there are many doped with soil, or some illegal vendors mixed with soda (used to increase volume), these inferior organic fertilizer applied to the soil, the effect can be imagined. Therefore, in the production must choose the high quality organic fertilizer, selects the commodity organic fertilizer when best selects the regular big factory production. Strictly control the amount of fertilizer Since more organic fertilizer is harmful and useless, we should control its dosage in the future production, so how much can be applied per mu of vegetable land to meet the needs of vegetable production? The author thinks that under normal circumstances, 15~20 square meters of pure chicken manure and 35~40 square meters of rice husk manure are suitable for each mu of vegetable field, and the upper limit of fertilizer required for solanaceous vegetables is recommended. Leafy vegetables need a little less fertilizer, take its lower limit. With biological fertilizer application effect is good organic fertilizer, whether base application and flush application, it is best to use with biological fertilizer. Why do you want to combine biological fertilizer? Because after the organic fertilizer is combined with the 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 crop absorption, and at the same time can decompose and transform some harmful substances in the organic fertilizer to avoid damage to vegetables. Therefore, when applying organic fertilizer as a base, 150~200 kg of biological fertilizer can be applied per mu, and when flushing, 20~25 kg of biological fertilizer can be applied per mu each time, and the effect is better.