1. Organic manure piled up as base fertilizer In late July, 4000 kilograms of human feces were added in the sunny area, 100 kilograms of calcium magnesium phosphate were added, and 400 kilograms of crushed wheat oranges were added. Cover or use straw to cover the soil for 30 days. Serve high-quality organic fertilizer as a base fertilizer for greenhouses. Portable 3 Ply Disposable Masks Non-woven Face Mask With Elastic Earloops Disposable Surgical Face Mask Dongguan Anmeixuan Electronic Technology Co., Ltd , https://www.hyashine.com
2, superphosphate concentrated as a base fertilizer in the transplanting line open 8 cm deep trenches, after throwing phosphorus fertilizer cover soil 4 to 5 cm, and then transplanted crops in shallow trenches, shorten the phosphorus fertilizer and crop root distance to make up for phosphorus movement Sexual weaknesses.
3, early application of urea deep application and root application according to the crop development stage of fertilizer and water demand, in advance chase, deep application, than the shallow application of increased utilization rate of 28%. Shed temperature is 7 days in advance at 15~20°C, shelf temperature is 5 days in advance at 20~25°C, 8~10 cm ditch is opened in top dressing, and soil is covered tightly after spreading. Deep application may be applied to crops with large row spacing. . According to greenhouse temperature watering 5 to 7 days, so that there is enough time in the soil to fully ammoniation, in order to facilitate the absorption and utilization of crops, in the crop growth period, can be sprayed with 0.3% urea foliar, once every 7 days, 100 kg of solution per acre, continuous 2 or 3 times.
4. Ammonium bicarbonate with deep application of ammonium bicarbonate is an ideal quick-acting fertilizer for winter greenhouse vegetable production. Because it is rarely volatilized at a ground temperature of 20°C, it can dissociate into ammonium ions and be absorbed by the soil after it is applied to soil, and then slowly release it for supply. Root absorption of crops, even at soil temperatures of 5°C, can also be converted and absorbed by crops. When composting, it is 10 to 10 cm deep from the roots of the crop, and the soil is covered tightly after spreading. It can increase the utilization rate by 10~30%, and increase production by 10% over shallow application, and increase production by 7.8% over water application.