Parallel Twin Screw Barrel,Injection Molding Machine Barrel,Screw & Barrel For Plastic Machine,Screw For Injection Molding Machine Zhoushan Dinghai Jinsheng Bimetallic Plastic Machinery Factory (General Partners) , https://www.jinshenggalloy.com
1. Adding organic fertilizer, especially the application of coarse fiber with more fiber, providing comprehensive nutrition for vegetable growth, enhancing the buffering capacity of soil nutrients, preventing salt accumulation and delaying soil salinization.
2. After the vegetables are harvested, the soil is deeply ploughed, and the topsoil rich in salt is turned into the lower layer, and the lower layer of soil with less salt is turned to the upper layer to reduce salt damage.
3. Use the gap to remove the film, and let the surface layer of the soil leaching to the deep layer by sun or rain or flooding.
4. Vigorously promote formula fertilization. According to soil nutrient content, vegetable yield level and fertilizer requirement, rational application of nitrogen, phosphorus, potassium and trace element fertilizer can not only balance soil nutrient balance, but also slow soil salinization and acidification.
5. Deep application of base fertilizer, limited fertilizer. The base fertilizer should be applied to the topsoil by ploughing, so as not to increase the salt content. When the fertilizer is applied, it should try to “eat less mealsâ€.
6. Strongly advocate root dressing. For top dressing, it does not increase soil salinization and acidification, but also provides nutrients for vegetable growth.
Compared with open field cultivation, greenhouse vegetable has stricter requirements on the quality and quantity of fertilizer. If improper fertilization will cause soil salinization, acidification and imbalance of nutrient ratio. For soil barriers in vegetable greenhouses, the following measures should be taken in fertilization techniques:
ã€Comment】 ã€Print this article】 ã€Close this page】 ã€Large, medium and small】