Summer vegetable rain cultivation

The high temperature and rain in the summer are extremely unfavorable to the growth of vegetables, often resulting in deficits and early autumn. The use of plastic films and other materials covering the top of the greenhouse to prevent vegetables from raining can not only avoid direct rainwater raids, but also can effectively improve the light, temperature, and humidity conditions in the shed to achieve high quality, high yield and high efficiency.

First, the facility requirements. Rain cultivation is mainly used for summer cultivation of tomatoes, eggplants, peppers, cucumbers, Chinese cabbage, small green vegetables and other vegetables. The shed film covering the top of the shed is preferably the old polyethylene film used in early spring cultivation. If it is a new film, it can be lightly sanded with fine sandpaper to enhance the adhesion of the shed film to the dust, thereby reducing the light transmittance. The film covers only 0.8m above the ground from the roof to the shoulders to facilitate natural ventilation. Ditches with a width of 0.8m and a depth of 0.4m should be dug around the shed, and communicate with the external drainage ditch to ensure that no water enters the shed after heavy rain.

Second, supporting technology.

1, choose a good seed. Choose middle and late-maturing varieties that are resistant to high temperature, strong light, disease resistance, high quality, and high yield. For example, tomatoes use Jiang No. 1 or No. l4, peppers choose No. 1 or No. 3, and eggplants use Nagano black or black show cucumbers. Jin Yan No. 4 or Ning Feng No. 1 was selected, Xia Yang or Xia Feng was used for Chinese cabbage, and heat resistant or green varieties such as Xiao Qing were selected.

2, timely planting. The period for listing rain-fighting cultivation products is mainly from July to September. According to their growth and development characteristics and the time from sowing to marketing, the planting period of each variety should be determined scientifically and reasonably. General tomatoes are planted in the middle and late April and planted in mid-June. Peppers and eggplants are planted at the beginning of April and planted at the end of May. Cucumbers are planted in late May and planted in mid-June. Cabbage is planted at the beginning of June and nursed in the middle and late June. Planting or live broadcasting in mid-June; small green vegetables from the sowing to harvest market takes 25-30 days, can be staged in batches sowing, one after another harvest market.

3, soil preparation and fertilization. The use of evacuation shelters in the early spring to cultivate treacherous arable land requires more stringent cultivation of the soil. After the former crop has been plunged, it is necessary to promptly clean up the sundries in the shed, deepen the stalks, and ripen the soil. According to the characteristics of different crops requiring fertilizers, full application of organic fertilizer, phosphorus and potassium fertilizers and other trace fertilizers should be applied to ensure that the soil is loose and fertile, and the permeability is good. According to different species, small high ridges of l0-20 cm in height are required for rowing. Irrigation.

4, scientific colonization. The use of big seedlings with buds in the rain-fighting cultivation tends to cause damage to the roots during the transplanting process. Simultaneously, the high temperature and strong light in the middle of the summer also make the plants lose water and wilting, affecting the survival. Therefore, in addition to the use of nutrients and other mulch measures in the production, 7-10 days before planting should be good old health seedlings, improve resistance to plant injury, 1 day before planting a good film, conditional coverage of the shade on the shed film Net or straw shades, etc. The plant was selected for cloudy days or sunny evenings. After the planting, the foot water was poured in a timely manner, and the seedling water was poured on the second day to reduce the plant injury.

5, fine management. After cultivating live trees, timely cultivating soil loosens the permeability of the soil and promotes the emergence of new roots. At the same time, adjust the temperature and humidity in the greenhouse, timely apply fertilizer, mulching and arranging fruit, promote flower and fruit protection, prevent and control pests, etc., and coordinate the relationship between vegetative growth and reproductive growth. It is necessary to prevent madness and prevent premature aging to ensure stable growth. , Multi-results, big fruits, extended harvest time, improved yield and quality.

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