Herbal Cabbage Fertilization Points
Currently, there are significant differences in organic manure application among different fields of the cabbage. The blind application of nitrogen fertilizer is serious, the amount of potash fertilizer is insufficient, and the time and method of application are unreasonable. Excessive irrigation results in waste of fertilizer and water, and nitrogen fertilizer utilization is low. Fertilize, increase yield and quality. Principles of fertilization (1) Appropriate application of organic fertilizer, organic fertilizer and chemical fertilizer application; follow the principle of nitrogen fertilizer, phosphorus stabilization and potassium application. (2) Topdressing mainly nitrogenous fertilizer, reasonable compatibility of N, P and K; note that in the rosette stage to the late ball stage, appropriate supplements such as calcium, boron and other trace elements in fertilizers to prevent "dry heart." (3) In combination with high-yielding cultivation techniques, especially water-saving irrigation techniques, the fertilizer and water effects should be fully utilized to increase the utilization rate of fertilizers. Fertilizing amount and proportion (1) Basal fertilization farmyard fertilizer 2000 kilograms. (2) The production level is higher than 6500 kg/mu field, with 18-20 kg of pure nitrogen, 10-12 kg of phosphorus pentoxide, and 14-16 kg of potassium oxide per acre. The output level is between 5500 and 6500 kg/mu, with 15-18 kg of pure nitrogen per acre, 6-10 kg of phosphorus pentoxide, and 12-14 kg of potassium oxide. The output level is between 4500 and 5500 kg/mu, with 13 to 15 kg of pure nitrogen, 4 to 6 kg of phosphorus pentoxide, and 8 to 10 kg of potassium oxide per acre. Nitrogen and potassium fertilizers were applied at 30% to 40%, and 60% to 70% were applied in two stages of rosette and early balling. Phosphate fertilizers were all applied as base fertilizers or acupoints. (3) In the previous years, there was a severe blockage in the “dry heartburnâ€. Attention was paid to nitrogen control and calcium supplementation. It was possible to spray 0.3 to 0.5% calcium chloride solution from the rosette stage to the late stage of the ball shoot 2 to 3 times. For boron-deficient land, 0.5 to 1 kg of borax can be applied per mu, or 0.2 to 0.3% of borax solution can be sprayed for 2 to 3 times during the growth period. At the same time, spray 0.5% potassium dihydrogen phosphate solution can be sprayed 2 to 3 times in order to increase the net rate and commodity rate of cabbage. Hydrolyzed Sponge White Powder Sponge Chengdu Sino Tech company , https://www.cnherbfun.cn