The newly-built sheds belong to the “original landâ€. Although there are few nutrients such as fertilizers in the soil, pathogens and harmful substances in them are also less. Planting melons has advantages, especially melons, peppers, and other fruits and vegetables that are not resistant to cultivars. The newly built sheds also have disadvantages, that is, poor soil and low fertility. How to eliminate the disadvantages of new sheds is the focus of production.
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When the soil is changed: During the construction of new adobe bulldozers and other mechanical operations, the original cultivating layer of soil, that is, what we call “mature soil†is basically pushed into the back wall, and the soil in the shed is the soil below the original cultivating layer. It is "raw soil." How to reform the soil is the key to high yields of vegetables. According to the soil texture, appropriate measures can be adopted to improve. If conditions permit, soil composition can be properly improved, clay soil inlaying, and sand incorporation, etc. Sandy soils should be incorporated into clay to improve soil quality.
Fertilization: The organic matter and nitrogen, phosphorus, potassium, and other nutrients in newly established greenhouses are relatively small. In the first year, the use of fertilizers should be increased to increase soil fertility. Excessive application of manure and other organic fertilizers, but must be fully decomposed and plowed evenly after spreading. Chickens and other poultry have high nutrient content of manure, and 15 m3 per mu can be used. Animals such as cows and horses have low nutrient content but have a high content of organic matter. They have good effect on soil improvement and can use 25 m3 per mu. In order to increase the content of organic matter in newly-built greenhouse soils, improve the soil, and use decomposed stalks is a good method. The corn, wheat and other straws harvested are chopped to 5-10 cm, soaked, and urea or a considerable amount of other nitrogen fertilizers with a straw weight of 3%-5% is added, and then added to the special fermentation strain for fermentation. After one month, fully fermented straw became a good organic fertilizer. Especially for viscous soils, the use of fully decomposed chicken manure, cow dung and other livestock manure and straw to improve soil effect is very good. In addition, the nitrogen content of manure is relatively high. When plowing the soil, chemical fertilizer should be used in combination with 80-100 kg of compound fertilizer with high phosphorus and high potassium per acre. Appropriate amount of micro fertilizer should be applied depending on local conditions.
Deep turning: During the process of building the shed, bulldozers and other mechanical and artificial roller compaction caused the soil to harden and change, which seriously damaged the original structure of the soil. By deep-sweeping the soil and increasing the organic fertilizer, the soil can be loosened and improved, which is conducive to the growth of the roots of the vegetables. After spreading good fertilizer, it is best not to use rotary cultivators, plows, and other agricultural implements when plowing the soil, especially rotary cultivators. Artificially use iron shovels to turn the depths of the two bowls, so that the depth of the bowl reaches 40-50 cm, and the applied fertilizer is deeper and evener.
More biological bacterial fertilizer: Because it is "raw soil", there are few harmful bacteria in the soil, but also the lack of beneficial bacteria. By using biological bacterial fertilizer, it can rapidly supplement the beneficial bacteria in the soil, making it a dominant community and promoting the robustness of the root system of the melons. The use of biological bacterial fertilizers in new-built greenhouses is relatively large, and it is preferable to combine Pu Shi with acupoints. Before ploughing the soil, some of the biological fertilizer was sprinkled into the shed with manure, etc. When planting, sprinkle some of the bacterial fertilizer in the planting hole, can play a very good role. There are many kinds of biological bacterial fertilizers, and it is not necessary to use the solution to dissolve potassium and dissolving potassium in newly-built greenhouses. The application should be biological fungus such as Chaetomium, actinomycete, etc., such as the market's bacteriostatic bacteria 968, Longzhu, Sanzhong, and Fertilizer. Health and other series of bio-organic fertilizer.
The above measures are mutually reinforcing. Through the comprehensive application of these measures, the disadvantages of the new shed can be compensated. With the advantages of the new shed itself, the new shed will surely achieve higher returns.