Cabbage is normally suitable for planting in May.
Cabbage planting knowledge
A, sowing seedlings: the implementation of vine seedlings, with the previous year selected by the protection of the safety of over-wintering seed trails germination inserted in the seedling compartment. According to the compartment width of 1.5 meters, ditch width of 20 ~ 25 cm specifications of the whole field as compartments, the bottom of the fertilizer, to take the full compartment sowing seeding, seeding per acre seedbed seeding cranberries 150 ~ 200 kilograms. Covered with plastic film after sowing to keep warm, moisturizing, to be removed after the seedlings out of the ground film. Seedling height of about 30 centimeters to take trailing, prompting the trailing node down the occurrence of adventitious roots, upward draw long lateral branches, and then use the successive draw out of the lateral branch cuttings with a certain size of the planting.
Two, fertilization transplantation: hollow cabbage on the soil conditions are not strict, it is advisable to choose a low terrain, the soil is moist and fertile clay loam on the cultivation. Bottom fertilizer to organic fertilizer, phosphorus fertilizer, can be sprinkled with a certain amount of grass ash. Its cultivation specifications for the row spacing 30 ~ 35 cm, nest spacing 15 ~ 20 cm. In addition, can also be taken during the growth of 15 cm or so of the top again cuttings propagation, as long as the cuttings of the field soil humidity is suitable, the tips will soon grow adventitious roots, and draw new tips.
Three, field management: the early stage should be timely plowing and loosening, improve the ground temperature. Plant growth period, fertilizer and water demand is large, to water diligently, watering (dry air, soil moisture shortage, easy to lead to the increase in hollow cabbage fiber, affecting yield and quality), and combined with watering fertilizer. After the first harvest, 15 kilograms of urea or 20 kilograms of diammonium phosphate per mu, fertilizer is applied with irrigation. Afterwards, every 20 days or so, 1 time of fertilizer, mu of urea 3 to 5 kg. In the fall when the temperature turns cooler, it is necessary to plow and weed in a timely manner, and pay attention to the prevention and control of red spiders and other pests. In addition, too many lateral branches, branches and vines crowded and weak part to be thinning, so that the growth of branches and vines balanced, good ventilation and light, improve product quality.
Four, harvesting technology: timely harvesting is the key to high-yield, high-quality cabbage. Production, generally in the seedling height of 25 ~ 35 cm or so can be harvested. In the first and second harvest, the base of the stem should be left enough 2 to 3 sections, in order to facilitate the sprouting of new shoots after harvesting, promote the development of lateral branches, and strive for high yield. After harvesting 3 to 4 times, the plant should be a re-harvesting, that is, the base of the stem to leave only 1 to 2 books, to prevent the occurrence of too many lateral branches, resulting in the growth of weak and slow.
Hollow cabbage planting picture