High-yield cultivation technology of Chinese chives

Leeks are mainly cultivated in spring and autumn. Spring leeks are sown from late February to early April and harvested from early April to late May. Autumn leeks are sown in August-September, harvested early in the fall and before winter, and late sowing can be harvested from winter to spring.

Cultivation of leeks should pay attention to the selection of plots with less weeds. After making the Teng Tzu, apply the basic fertilizer and plow the seedlings to make it. The leeks often use dry seeds for direct seeding, that is, the seeds are mixed with fine soil before sowing, and then sown uniformly on the sorghum surface, and then lightly smashed with scorpions, so that the seeds and the soil are mixed, and then step on the sorghum. Sowing time varies greatly between different sowing dates. Spring sowing is generally 0.75 kg per mu; sowing in August, due to hot weather, drought or thunderstorms, poor emergence, about 1.5 kg per acre; seeding in September Due to the cool weather, the rate of emergence is high. It is advisable to use about 1 kg per mu. When sowing in early autumn, in order to avoid high temperature and drought, seedlings can be covered with mats and keep the soil moist. After the emergence, the cover is removed in the evening.

From the time of sowing until emergence, it is necessary to pay attention to the irrigation of small water and keep the surface moist; if conditions permit, it can be sprayed once or twice a day. Spring sowing leeks generally sown 7 to 15 days after emergence, autumn sowing 4 to 5 days emergence. When the seedlings 2 true leaves, the appropriate thinning, and the first top dressing, immediately watering; 10 to 15 days after the second top dressing, and watering, general plots, ammonium sulfate can be applied every time 10 acres ~ 15 kg. When watering, take a slow irrigation with small water to prevent foliar sludge. In case of flooding, timely drainage and string water cooling with well water prevent rotten roots. During the growth of leeks, they can be harvested in combination with seedlings, and weeds can be removed in time. At the same time, it is necessary to pay attention to early control of aphids and downy mildew.

When plants have 10 to 13 true leaves, they can be harvested and marketed. The harvest of leeks needs to be meticulous. Generally, 2.5 cm wide small diggers are used for digging, and attention must be paid to keeping large and small and leaving the seedlings evenly. In places where sparse emergence occurs, even large plants must be kept in reserve; in densely populated areas, even small plants have to be harvested. In this way, the remaining leeks can be densely and evenly distributed, which is conducive to hair growth and yield increase. Under normal circumstances, spring sowing leek can be harvested 2 to 3 times, autumn sowing leek can be harvested 3 to 4 times. The leeks cultivated in the autumn can also be harvested in the middle or late November. After the yellow leaves and diseased leaves are removed, they are stored in the same way as spinach.