Planting and management techniques of high autumn cabbage with stable yield, high storage quality and good benefit

Autumn cabbage has higher yield, stable yield, storage resistance and good quality than spring cabbage. Planting autumn cabbage can adjust and increase vegetable varieties in off-season. The cultivation techniques of autumn cabbage are as follows:

Autumn cabbage

First, select improved varieties:

Autumn cabbage is growing at high temperature in the early stage and low in the later stage. Early, middle and late ripening varieties with heat resistance, cold resistance and storage tolerance should be selected and the sowing date should be staggered.

(2) sowing at the right time:

The growth period of autumn sowing cabbage is long, but the autumn growth period is limited. Therefore, the sowing date of autumn cabbage should be determined according to the growing period of the variety, preferring to advance rather than postpone.

(3) timely planting:

When planting autumn cabbage, it should be planted in cloudy or sunny evening because of high temperature, low soil moisture and large evaporation. The day before planting, the seedling bed should be watered thoroughly, and don't hurt too many roots by digging seedlings. When planting, the proper shallow planting is beneficial to the root. To irrigate enough fixed planting water, slow seedling water should be irrigated early, and do a good job of seedling replenishment, in order to preserve the seedlings. It usually takes about 30 days and is planted with 7-8 leaves. The row spacing is 50-60 cm, and the plant spacing is 45-50 cm.

Fourth, scientific topdressing:

Autumn cabbage needs to be fertilized five times. When planting, apply dilute human feces and urine once; when rosette leaves are formed, the second fertilizer should be applied to increase the concentration and dosage, urea and human manure can be used; in the peak growth period of rosette leaves, the third fertilizer should be applied, ditching and burying fertilizer should be opened between rows, and organic fertilizer should be mixed with chemical fertilizer (nitrogen fertilizer and phosphate fertilizer). After application, the soil is irrigated with water, and then potash fertilizer is applied to the surface. In the early and middle stages of heading, the three-yuan compound fertilizer was applied once, each time about 30 kg per mu, and in the later stage of heading, topdressing was stopped.

Fifth, watering and drainage:

In the early stage of cabbage growth, it is necessary to loosen the soil and breathe, prevent drought, grass, drainage and waterlogging. Fertilizer and water attack in the middle and later period, timely watering during drought, the soil remains dry and wet, after entering the rosette stage, keep the soil moist, it is best to water wells, not rivers and ponds. After the heavy rain, do a good job of drainage, there can be no stagnant water. Half a month before harvest, water and fertilizer should be controlled to facilitate harvest and storage.

6. Disease prevention and pest control:

After cabbage colonization, diseases and insect pests need to be controlled. Black rot can be sterilized into 800x solution with 50% sterilization, 3500-fold solution with 72% agricultural streptomycin or spray with 77% solution. Virus diseases can be controlled by spraying 20% virus A wettable powder 500x or 1.5% Zhishanling 1000 times. The main pests that damage cabbage are cabbage worm, diamondback moth and night moth, which can be sprayed with 1500 times Yitaibao EC.