Select the planting field: mustard should be planted in the soil fertility is higher, better aeration, soil texture is more loose, drainage and irrigation water capacity is good, humus slightly more sandy loam.
2, land preparation
After selecting a good planting field, deep plowing of the soil with a farm machine, the depth of cultivation should be 30 cm - 34 cm, deep plowing is completed per acre after the application of 4,500 pounds - 5,000 pounds of fermented fertilizer, and then turn over the soil 1 time, the circle of fertilizer tilled into the ground to improve the fertility of the soil.
After land preparation, make a border width of 1.3 meters - 1.5 meters, and the width of the border ditch should be about 25 cm - 30 cm.
3, sowing
In the bed according to the distance of 18cm-20cm per plant, row distance 20cm-30cm way, digging holes to sow seeds, each hole into 2-3 seeds, after sowing the seeds, cover the soil, and then watered once, and finally covered with a layer of straw or mulch. Remove the mulch when the mustard seedlings emerge from the soil.
Mustard can be sown in spring and fall, the best time for spring sowing is in early March - early April, the best time for fall sowing is in late September - early October, the climatic conditions of these two periods are very consistent with the growth of mustard.
4, field management
(1) seedling checking seedlings between seedlings: seedlings began to come out of the ground, we should always check the seedling situation, until more than 80 percent of mustard seedlings are out of the ground, it is necessary to carry out the inter-seedling, will be each hole in the weak seedlings, diseased seedlings pulled out, leaving only a strong seedling. If there is no seedling in the seeding hole, we should transplant the extra seedlings from other seeding holes to the hole where there is a lack of seedlings. Transplanting time, the mustard seedling root system of the soil together with digging out planted to the lack of seedlings in the seeding hole, move carefully not to hurt the mustard seedling roots, transplanted in a timely manner after the watering of a root water, so that after planting the seedling root system in order to combine closely with the soil can improve the survival rate of seedlings.
(2) fertilization: when the mustard grows to 10 cm high, the first time to carry out fertilizer, 40 kg -60 kg of calcium superphosphate per acre, when the mustard grows to 20 cm high, the second time to fertilize, 90 kg -120 kg of calcium superphosphate per acre. Note: You can harvest some of the leaves before fertilizing when the mustard grows to 20 cm high.
(3) watering: after the completion of inter-seedling, water 1 time to strengthen the seedlings. After each chasing fertilizer, water 1 time, so as not to burn the plant by fertilizer. When it doesn't rain for several days in a row, water more, or the mustard will wilt due to lack of water.
(4) weeding: after inter-seedling, watering at the same time to plow and weed 1 time, plow to shallow plow so as not to hurt the root system of seedlings, weeding should be eliminated so as not to avoid the nutrients are weeds sucked away. After the first weeding, shallow plowing should be done every 10 days or so. No matter what time, as long as the weeds are found in the field should be removed in time.
(5) Harvesting: mustard sown in the fall can be harvested after 35-40 days, and mustard sown in the spring can be harvested after 50-60 days. No matter spring sown mustard or fall sown mustard, it should be harvested when it grows 10-12 leaves.