1, with strong water absorption.
Selenium sand melon has strong water absorption and is not allowed to be planted. Once planted, it will continuously absorb water from the soil. If selenium sand melon is planted in sand-pressing land for a long time, it will easily lead to serious land aging and regional desertification.
2. Affect crops
After the melon season of selenium sand melon ended, other crops could not be planted in the soil because of lack of water and nutrition. If the soil is exposed for a long time, nothing will grow. Therefore, selenium sand melon can only be planted once a year in general sand pressing land.
3. Serious land reclamation.
The planting of selenium sand melon needs a certain amount of sand and gravel, which leads to a large number of reclamation in some areas. Some farmers frequently dig sand in order to turn sand into crushed sand, which damages local vegetation and landforms and is not conducive to ecological restoration.
Planting techniques of selenium sand melon in Ningxia
First of all, it is very important to choose the land. The growth of selenium melon in Ningxia needs sunny and well-drained soil. When selecting land, we should choose a place with loose soil, good drainage, deep soil layer, no water and no humidity.
Secondly, fertilization is also the key. The growth of selenium sand melon in Ningxia needs sufficient nutrients, so it should be fertilized in time when planting. In fertilization, organic fertilizer, ammonium sulfate and other fertilizers can be used to meet the growth needs of selenium sand melon.
In addition, irrigation is also an important link in the planting technology of selenium sand melon in Ningxia. Irrigation is very important in arid Ningxia. In terms of irrigation, rainwater, groundwater or irrigation facilities can be used for irrigation.
Finally, pest control is also an essential part of planting techniques of selenium sand melon in Ningxia. Ningxia selenium sand melon is prone to some pests and diseases, so it should be prevented in time when planting. Biological pesticides and chemical pesticides can be used to control pests and diseases.