Four-season cultivation technique of Chinese cabbage without pollution

With the continuous improvement of the people's living standards, people's consumption requirements for vegetables have fundamentally changed. In terms of large-scale cultivation, the traditional cultivation method of autumn sowing and winter storage for half a year has become a history. It has been replaced by spring sowing, summer sowing, early autumn sowing and autumn sowing. Four-season cultivation of Chinese cabbage, especially off-season cultivation, has a short cycle (generally from 50-60 days from sowing to harvest) and high efficiency (2000-4000 yuan per 667 square meters), which is an important measure to increase farmers' income. Seasonal cultivation of Chinese cabbage requires supporting excellent varieties and cultivation techniques and appropriate cultivation facilities are described below.

1. Main cultivation techniques in spring. The varieties were selected from Yuxin No. 5, General Spring, and Xinxiang Xiaobao 23. The first is the strict planting period, where the average temperature is stable at more than 13 ℃ for many days, so you can sow. If the greenhouse and small bow shed can be planted in early March. If the shed is covered with plastic film, it can be sown in late March. The open field mulching film was sown in early April. It can be sown directly or transplanted. The second is the application of plantar fertilizer, deep tillage and fine rake, 667 square meters of fully rotted high-quality farm fertilizer 5000kg, compound fertilizer 50kg, potassium sulfate 3kg. The third is reasonable dense planting, and time seedlings, row spacing 50cm, plant spacing 40cm, thinning seedlings 2-3 times, there can be no piles of seedlings, to ensure that there is no missing seedlings broken ridge phenomenon, watering combined with thinning seedlings and top dressing, see weather conditions and soil moisture, see dry See wet, we should irrigate with small water, plowing in time after watering, disperse the soil to raise the ground temperature, mainly promote, and promote to the end. Disease prevention and control is mainly based on the prevention of soft rot. If there are plants in the center of the disease, the roots should be irrigated with kumquat, agricultural streptomycin, Lvheng No. 6 and other agents in time, and the diseased plants should be removed to disinfect the disease points with lime. About 60 days after sowing, according to market conditions, early or late harvest, in order to obtain good economic benefits.

2. Main techniques of stubble cultivation in summer. Variety selection Yuyuan 50, Xia Sheng. It is usually sown in the early spring vegetables such as cucumbers, beans, tomatoes, etc., and is not suitable for transplanting in summer. The sowing period is from June 10 to July 20. After the previous crops are harvested, the garden should be cleaned, and the litter, weeds and waste plastic film should be picked up to avoid breeding pests. Before sowing, apply nitrogen, phosphorus and potassium compound fertilizer 50kg / m2 in a ditch beneath the sowing hole, row spacing 50cm, plant spacing 35cm. After sowing, water in time, water in small water, add a small amount of insecticides such as trichlorfon or phoxim, and fungicides such as carbendazim and thiophanate-methyl. After emergence, the temperature is high and the summer is high, which is the peak period of insect pests, mainly including aphids, cabbage worms, cabbage borers, diamondback moths, etc. Special attention should be paid to prevention and control, otherwise it is difficult to retain seedlings. Killing emulsifiable concentrate, killing emulsifying emulsifying cream, and kung fu emulsifying cream, and combining spraying prevention and control with artificial capture to completely eliminate insect pests and ensure the healthy growth of seedlings. If the greenhouse frame can be used to cover the sunshade net or the insect net, it is easier to cultivate successfully, greatly reduce the occurrence of diseases and insect pests, and reduce the use of pesticides. Intermediate seedlings are set 2-3 times, and 7-leaf seedlings are established. Intermediate seedlings should be carried out when the temperature is high at noon. At this time, the diseased seedlings are wilted and it is easy to remove the diseased seedlings and weak seedlings. In the late stage of continuous sitting, topdressing 30kg / 667 square meters of N, P and K compound fertilizer, watering combined with seedlings and top dressing, timely plowing and loosening the soil for weeding, mainly to promote, not to squat seedlings, to promote to the end. Disease prevention and control can use Virus A and Zhizhangling to prevent and control viral diseases, Kangning and Ruidu mold to control downy mildew, and agricultural streptomycin and Nongkang 120 to control soft rot. August-September is the off-season of vegetable supply. 45-50 days after planting, the market should be seized, harvested and listed in time. Over 50 days, there is bolting in the leaf ball, which affects the quality of food.

3. The main cultivation techniques in early autumn. The varieties were selected from Yuxin 3, Yuxin 60, and Xinxiang Xiaobao 23. The sowing period is from July 20 to August 10, and it is easier to cultivate successfully by covering the sunshade net or the insect net. At this time is the rainy season in midsummer, early stubble, re-apply base fertilizer, general application of rotted organic fertilizer 5000kg / 667 square meters, precision tillage and fine rake, small high ridge cultivation, row spacing 50cm, plant spacing 45cm. Pay attention to the quality of seeding, realize one-seed whole seedlings, 2-3 times between seedlings, 7-9 leaves set seedlings, pay attention to pest control, mainly aphids, cabbage worms, cabbage borers, diamondback moth, etc., combined with chemical control and artificial capture, can not have The cabbage borer (Heartworm) eats the growth point, otherwise the leaf ball cannot form normally. To ensure the healthy growth of seedlings, after watering and raining, shallow weeding and weeding, the planting period of early autumn Chinese cabbage is easier than that of spring and summer Chinese cabbage, and the harvest period is slightly longer, when the leaf ball is full to 70% It will be put on the market and the medicine will be stopped two weeks before the harvest to ensure that the pollution-free vegetables are on the market.

4. The main cultivation techniques in autumn. The varieties are Yuxin No. 1, Yuxin No. 6, and Xinxiang Xiaobao 23. The sowing period is from August 10 to August 15. After harvesting the previous crops, the fields should be cleaned in time, the larvae should be cleaned up, the rotted organic fertilizer should be re-applied, the ground should be finely prepared, and the small high ridge should be covered with plastic film. The suitable row spacing is 60cm × 60cm, and about 1800 trees are planted per 667 square meters (23 rows of Xinxiang Xiaobao are 45cm × 60cm), and the whole seedling can be sown once. When crossing the seedlings, the seedling spacing is about 5cm, the seedling spacing is about 10-15 days after the emergence, the seedling spacing is about 10cm, and the seedlings are fixed when 5-6 leaves, to achieve uniform seedling growth, watering at the seedling stage, more plowing weeds, squatting seedlings . After the lotus sitting period, topdressing and watering should be applied, and 20 kg of urea per 667 square meters can be applied. Watering should be dry and wet, and 30 kg / 667 square meters of nitrogen, phosphorus, and potassium compound fertilizer should be applied after the heading period. The cultivation in autumn is mainly to prevent diseases and insect pests at the seedling stage. The pests are still dominated by aphids, cabbage worms, cabbage borers and diamondback moths. During the heading period, the main prevention and cure of soft rot is to water the small water, and a small amount of agricultural streptomycin or agricultural resistance 120 water agent can be added along the water.

Disclaimer: Some articles of this website are transferred from the Internet. If the legal rights of third parties are involved, please inform this website for processing. phone