Mustard has collected wild and artificial cultivation of two ways of propagation. Artificial cultivation has open field cultivation and protected cultivation. Open field cultivation in the Yangtze River, the Yellow River and Huaihuai area in the spring and fall can be carried out, generally in the fall sowing. From late July to October can be successively sown, mid-September to the end of the next year March harvest, but the highest yield in August sowing.

Too early sowing, hot and dry weather, heavy rainfall, seedling emergence difficulties, to use shade net cover. Too late sowing, seedlings 2 ~ 3 true leaves when the cold front, easy to freeze. Spring sowing can be utilized in solarium or plastic greenhouse cultivation, early and delayed listing, is an efficient cultivation method.

Land preparation

Mustard seeds are small, so the land should be leveled, fine, picking off weeds and garbage, but also to do a deep ditch and high beds, in order to drainage and irrigation. The width of the bed is generally 2.5m (even ditch).

Sowing

Sowing period: spring cultivation in late February; summer cultivation in early July to late August; fall cultivation in early September to early October, generally fall cultivation.

Sowing amount: per 667 square meters, 1.5 to 2 kg for spring sowing, 3 to 4 kg for summer sowing, and 2 to 3 kg for fall sowing.

Sowing method: mustard can be scattered, but strive for uniformity, after sowing with the foot gently tread the bed once, so that the seeds and soil in close contact, in order to facilitate seed absorption, early emergence. In the summer and fall sowing, can be 1 ~ 2 days before the whole land, the land will be wet before the whole land for the bed, such as with the current year to harvest new seed sowing. Because the seeds are not yet out of the dormant period, it is necessary to put in the 2 ~ 7 ℃ environment (refrigerator) after germination sowing.

Two, field management

(1) reasonable fertilization. Generally 3 to 4 days after the fall sowing seedlings, spring sowing of 6 to 15 days seedling. When the seedlings 2 true leaves, the first fertilizer, per mu of 0.3% urea liquid 1000 kg, the second palladium fertilizer in the harvest 7 to 10 days before the harvest, and then every harvest of a fertilizer.

(2) timely watering. Mustard seeds are small, susceptible to soil moisture, pay attention to watering and moisturizing before the emergence of seedlings, watering time in the morning and evening is appropriate. To master the principle of light watering, diligent watering, not a watering.

(3) timely weeding. Mustard plants are short, usually sowing, weeds and mustard mixed together weeding is more difficult, labor, should be combined with the harvest to pull weeds.

Three, disease and insect control

Moldy mildew and aphids are the main pests and diseases of mustard, to use integrated control. One is to clear the ditch moisture, to prevent the field from waterlogging, pull weeds in time, so that the plants are ventilated; the second is to use 75% Chlorothalonil 600 times liquid or 72% Klue 600 to 800 times liquid, spraying control of mildew. Aphid control can be used pyrethrin or pyrethroid pesticides.