Improve the old shed soil These methods are useful
In general, the nutrient content of old shed soil that has been planted for many years is high, and it is reasonable to say that the output of vegetables should be guaranteed. However, the output of some old shed vegetables will not only not increase, but will increase with the increase in fertilizer input. The lower the rate, even some sheds and even the normal growth of vegetables cannot be guaranteed. Therefore, for the old shed, in order to maintain the output of vegetables, we must first restore the good condition of the soil. What are the key points for improving old shed soil? First of all, the base fertilizer should be mainly pure organic fertilizer. The use of organic fertilizer with low mineral element content, livestock manure, sheep manure, cow dung relatively high organic matter, less salt, suitable as the old shed base fertilizer. Cakes have a higher content of organic matter and more comprehensive nutrients, and are also one of the fertilizers that can be selected, such as bean cakes and peanut cakes. When these organic fertilizers are used, they must be based on Puxi, and the amount of mu should not be less than 5,000 pounds. Second, top dressing should be applied with water soluble fertilizer. Although the nutrients content in the old shed soil is high, when the absorption of nutrients is large in the middle and later stages of vegetable growth, if the fertilizer is not supplemented in time, it will still affect the vegetable yield. Therefore, the selection of water-soluble fertilizers with high absorption efficiency and low residue is an essential fertilizer for top-dressing vegetables in the later period. It is advisable to use high-intensity irrigation methods such as micro-spraying and drip irrigation in the old greenhouse. With the same amount of fertilization, the new water-soluble fertilizers have higher absorption and utilization, and have fewer residues. Again, gradually increase the amount of bacteria used. On the one hand, the spread of soil-borne diseases is curbed by the supplement of beneficial bacteria. On the other hand, increasing the amount of bacteria used promotes the decomposition and transformation of organic matter in the soil and fixed mineral nutrients, and reduces the residual of mineral nutrients in the soil. At the same time, beneficial bacteria can also protect and promote root growth in harsh soil environments. Old sheds are prone to persist in using beneficial bacteria and may not see results in a short period of time. Sticking to the use of more than one year, the beneficial effects of beneficial bacteria will gradually become apparent. Tiga-Lok Endo Appliers,Endo Appliers,Endoclip For Hemostasis,Endoscopic Clip Appliers Qingdao DMD Medical Technology Co., LTD , https://www.conston-tech.com