How do you grow cabbage? Planting techniques of winter cabbage

Winter cabbage refers to cabbage varieties sown in autumn and listed in winter and spring. Planting winter cabbage can fill the gap of market supply and demand, has the characteristics of high yield, high quality and high efficiency, and can effectively improve the economic benefits of vegetable farmers. So, how do you grow cabbage? The planting techniques of winter cabbage are introduced as follows.

I. Scientific selection of species

Winter cabbage varieties with strong cold resistance, high quality, high yield and disease resistance were selected. Winter cabbage varieties cultivated by vegetable Research Institute of Shandong Academy of Agricultural Sciences and Special excellent vegetable Research Institute of Shangqiu City in Henan Province can be selected. Zhengda overwintering cabbage varieties in Jiangsu Province have good planting performance, strong cold resistance, high yield and good quality. it can survive the winter safely without protection.

Second, seedling raising time and seedling stage management

1. Seedling raising time: according to the climatic characteristics, the following two time periods were selected: winter sowing: sowing seedlings from September 1 to 20, planting at the end of October, and harvest from February to March of the following year. Autumn sowing: sowing and raising seedlings from July 20 to August 10, and the seedling age is 30-35 days. It will be planted before September 15 and can be picked and listed from January to March.

two。 Seedling management: planting 1hm2 needs seedling bed 600m2 or so, select sandy soil with better conditions to build seedling bed, turn deeply and flatten it, re-apply high quality farm manure, irrigate enough soil moisture, wait for water to dry, sow seeds evenly on seedling bed (seed amount 0.75kg/hm2), cover soil shallowly, generally sprinkle 0.5cm. In order to prevent the sun or rain beat can be covered with grass curtain or sunshade net to ensure the whole seedling. Generally 3D Qimiao, uncover the curtain at sunset in the afternoon, remove the grass curtain or sunshade net. When the seedling grows to 6-7 leaves, it can be planted in the field when the seedling age is about 30 days. 5-7 days before planting, do not water the seedling, refine the seedling to improve the survival rate, promote its fast and slow seedling, and pay attention to the removal of weeds and the control of diseases and pests to ensure the cultivation of strong seedlings.

III. Planting and field management

1. Planting: select idle stubble plots such as peanut, sweet potato and yellow tobacco with irrigated conditions and fertile soil, ploughing and leveling in time, applying high-quality soil and miscellaneous fertilizer more than 45000 kg/hm2, compound fertilizer 300kg/hm2, potassium sulfate 300kg/hm2, ridging and standby. Planting should be carried out in cloudy days or in the evening, and the seedlings should be classified and planted when transplanting, so as to make the field neat and consistent and convenient for field management. Row spacing 50cm, plant spacing 35cm, planting number 57000 / hm2, watering immediately after planting, watering once 15 days after planting, and topdressing urea 225kg/hm2 about. The growth rate of the plant is accelerated when it enters the rosette stage. if the growth is too prosperous, the squatting seedlings should be properly squatted for 10-15 days. When there is obvious wax powder on the leaves and the heart leaves begin to hold balls, the squatting seedlings end. After the leaf ball is basically tight, when the core is up to 6-90%, watering should be controlled so as not to grow too vigorously and crack the ball and reduce the cold resistance.

two。 Key points: winter cabbage forms semi-core before winter, and when entering winter, the heading index must reach more than 6-7%. Under the condition of normal reduction of air temperature, the ability of-12 Mel 15 ℃ low temperature. If the heading index is not reached, the Beginning of Spring is prone to bolting; if it is higher than the index, the cold resistance decreases and the cracked ball occurs, which affects the commodity value. Winter cabbage grows in winter, affected by climate and other factors, the occurrence of diseases and insect pests is relatively mild, no drug control, no pesticide residues, no pollution, is a great potential pollution-free vegetable varieties.

IV. Timely harvest

The harvest period of winter cabbage is long, which depends on the market price factors, in order to obtain greater economic benefits. But note: the harvest must be finished by April 1. Because the plant has gone through vernalization to prevent late ball cracking and bolting, affecting the commodity quality of vegetable balls.

[conclusion] planting winter cabbage in a large area in winter fallow land is labor-saving, time-saving and easy to manage, and has good planting value. The above introduces the planting technology of winter cabbage. I hope it can be helpful to you!