How to fertilize the root with mustard?

How to fertilize the root with mustard? Please introduce the method of root mustard fertilization can refer to the following methods: 1. The application of basic fertilizer root mustard like the land rich in organic matter, so be sure to apply a sufficient amount of organic fertilizer before soil preparation, generally can use farm manure or heap of municipal waste, and then add plant ash and superphosphate. Specific amount, depending on soil fertility, generally every 667 square meters with farm manure 3500-4000 kg, plant ash 150 kg, superphosphate 25 kg, scattered all over the ground, and then ploughed into the soil, ploughing depth up to 40-50 cm, rake flat to make the border. 2. The application of topdressing during the growth and development of direct seeding root mustard, topdressing 5 times according to the specific conditions. When the cotyledons of the seedlings were spread out, the first topdressing was carried out and 500kg of dilute feces and urine with a manure-water ratio of 1:7 was applied. After the first seedling intercropping, the second fertilizer was applied when weeding in the middle tillage, and 800kg was applied with feces and urine water at the ratio of 1:5 per 667m2. After the seedling is fixed, the plant grows rapidly and needs sufficient fertilizer and water, and the third topdressing can be carried out, applying ammonium sulfate 1015kg per 667 square meters. After entering the rosette stage, in order to promote the expansion of fleshy roots, the fourth fertilizer can be used for every 667 square meters with 10 kg of urea and 4 kg of potassium sulfate. When entering the peak period of fleshy root expansion, adding the fifth fertilizer can accelerate the expansion of fleshy root and increase the yield. Nitrogen, phosphorus and potassium compound fertilizer is applied 1520 kg per 667 square meters. Topdressing should be applied early and combined with phosphorus and potash fertilizer. if topdressing is too late and too much nitrogen, it will make the aboveground grow too much and affect the expansion of fleshy roots. 3. The application of foliar fertilizer requires more boron during the growth of root mustard, and 0.1%-0.25% borax or boric acid can be sprayed on the leaf when entering the seedling stage. In the early growth stage, 0.02% ammonium molybdate aqueous solution can be sprayed. After shoulder exposure, foliar spray of 2% calcium superphosphate once a week has a significant yield-increasing effect. Click to get more mustard planting techniques click to get more vegetable planting techniques