Cultivation technology of green stem

There are many types and varieties, and a wide range of adaptability. In addition to simple mulch cultivation in winter and early spring in China's Jianghuai region, it can be cultivated in multiple open fields; southern China can be produced annually. The cultivation is generally arranged according to three seasons: â‘  Autumn and winter cabbage: seedlings are transplanted, and the harvested plants are mainly harvested. South China is sown successively from September to December, and harvested in stages until February of the following year; Jiang and Huai areas are sown successively from early August to mid-October, and harvesting is completed before freezing. â‘¡ Spring cabbage: seeded in late autumn, seedlings overwinter, harvest in Hunchun; planted in early spring, harvest seedlings. In early spring, seedlings can be harvested and grown by using cold-bed sowing or after spring equinox. â‘¢ Summer cabbage: mainly cultivated and harvested vegetable seedlings, sowing at any time from early May to early August, and continuously harvesting. Cabbage is often rotated with melons, beans and field crops. Spring cabbage is intercropped with solan fruit, melons, beans, potato and taro vegetables; summer cabbage is mixed with vegetables such as celery, artemisia, and carrot; autumn and winter cabbage can be intercropped with or interplanted with cabbage, cauliflower, lettuce, potato, etc. Using different varieties to arrange sowing can achieve annual supply.

Pakchoi is generally seeded and transplanted except for direct seedling cultivation in early spring and summer. It is advisable to choose loam soil that retains water and fertilizers, and has good drainage. It should be cultivated early after harvesting, clean the countryside, apply enough fertilizer, and make high or flat hoe after land preparation. Seeding should be controlled by even sowing and appropriate thin sowing. Avoid emergence of seedlings after emergence and time; perform topdressing and watering after inter-emergence, and pay attention to weeding and pest control at seedling stage. Usually transplanted 25-30 days after sowing. Fertilization, ploughing, sunbathing, and cropping in advance for planting fields. Planting density varies with varieties, seasons, and cultivation purposes. The row spacing of most varieties is 20-25 cm square. The depth of planting varies with the climate and soil quality. It should be planted shallowly in early autumn to prevent rotten hearts due to deep planting. After cold dew, the vegetable should be deeper to prevent cold. The soil is relatively loose and can be planted a little deeper; the sticky soil should be planted shallowly.

Pakchoi has shallow roots and weak absorptive capacity. It should be constantly supplied with fertilizer and water during growth. Repeated application of fast-acting nitrogen fertilizer is an important measure to promote the growth of cabbage and ensure high yield. Principles of reasonable fertilization: First, timely fertilization after planting to promote the recovery of seedlings; second, increase the concentration and amount of fertilization with the growth of individual cabbage. As for the method, period and amount of fertilization, it depends on the weather, seedling conditions and soil. Watering combined with top dressing. Water is indispensable within 3 to 5 days after planting, especially in summer and early autumn. Watering must be done every morning and evening for 3 to 4 consecutive days after planting. Cultivated cabbage should apply more organic fertilizer as the base fertilizer. During the growth period, topdressing chemical fertilizers can be applied appropriately, and foliar topdressing can also be combined with spray irrigation.

Pakchoi plants grow to a certain size and can be harvested at any time. Harvesting standards for adult plants: The outer leaves are beginning to fade in color, the outer leaves at the base are yellow, the leaves are turned from vigorous growth to closed growth, and the heart leaves are extended to be flush with the outer leaves (commonly known as "flat mouth"). Autumn cabbages can be harvested 30-30 days after planting in Jiang and Huai regions. It takes 50-60 days to harvest the plants; spring cabbage must be harvested before bolting. It only takes 40 ~ 60 days to plant and harvest in South China.

Disclaimer: Some articles on this website are transferred from the Internet. If third party legal rights are involved, please inform this website to deal with them. phone