After many years of experience, the cultivation mode of the greenhouses widely used and popularized in Yongcheng City, Henan Province, which has been harvested three times a year (ie, harvesting watermelons, cabbages, and leeks) has matured. Serious problems, the annual mu benefits nearly 10,000 yuan. This model is briefly described as follows: 1 Cultivation of watermelon in greenhouse 1.1.1 Selection of seedlings Jingxin No. 1 or a small and medium-sized watermelon variety of Dilong was used to raise seedlings in a nursery in mid-January. The daytime temperature is 25-28°C, the night temperature is 12-15°C, and the humidity is kept at 70%-80% (carcasses 20cm20cm) for nursery. 1.2 When planting and fertilizing soil preparations, the roots of leeks will be grounded to the outside of the shed. Each mus of decomposed chicken manure shall be 2.5 cubic meters, superphosphate 50kg, and earthworm spirit 1.5kg. The ploughing shall be smooth, ridging, ridge width 50cm, and ridge height 8~ 10cm, ridge direction and the shed to the same. Huanghuai area was planted in the shed at the end of March. 1.3 planting and density spacing of 0.5 ~ 1.9m wide and narrow rows, spacing 50cm, 1100 per acre; in the ridge triangle planted 2 rows of watermelon, spacing 30cm, and cover the film, drenched water, in order to facilitate the slow seedlings. 1.4 After pouring and pruning watermelons, it is necessary to carry out artificial dumping in time. Use the left line to the right and the right line to the left to fall. Double vine pruning is performed, and the remaining lateral branches can be completely removed, but the side branches of the guarana do not need to go in order to facilitate the placement of the melons and enlargement. 1.5 artificial pollination and artificial pollination artificial pollination in the morning 8:00 ~ 9:00 dew receded with male flowers for artificial pollination, a male flower at the same time granted two female flowers. When the watermelon has the size of the egg, the pure, melon, and melon stalk of the selected variety can be set to melon, and 1 can be set to 1 melon. 1.6 Dressing and Watering Watermelon can be poured once a little to promote the growth of carcasses. After the melon can be applied per acre chase 50kg + potassium sulfate 5kg, melon bowl mouth size and then topdressed once per kilogram of potassium sulfate compound fertilizer 20kg, each fertilizer must be irrigated. 1.7 Pest Control Watermelon mainly produces anthrax, downy mildew, gray mold, aphids, whitefly, and spotted fly. According to the occurrence of the situation, mancozeb, zecorin, keto, imidacloprid, avermectin, etc. can be used for prevention and treatment. 2 Xia Cabbage Choose Xiayang 50 or Yuzao No. 1 to prevent seedlings from sowing in rain, and also cultivate seedlings with nutrients to cultivate 4 to 5 true leaves. The nursery time can be carried out from June 10 to early July. The broadcast can be advanced and the nutrition can be delayed. After harvesting, the watermelons were timely grounded at the beginning of June and 300 kg of cottonseed cake, 50 kg of potassium sulfate compound fertilizer and 1.5 kg of insecticide were applied per acre. Tillage ridges, ridge width 20cm, ridge height 10 ~ 15cm, ridge distance 50cm. From July 20 to early August, planting can be carried out at a plant spacing of 50 to 60 cm and planting 2400 to 2600 plants per acre. Before the planting, the seedbed was drenched and sprayed with 50% carbendazim. After the end of the rosette period, the package is very quick. Apply 2 available nitrogen fertilizers, such as urea or sesame, with the water. 15kg urea or 40kg fresh sesame per acre. Summer cabbage is prone to downy mildew, soft rot, virus and aphids, whitefly, cabbage caterpillar, diamondback moth, cotton bollworm and so on. Can use DuPont Kelu 800 times, agricultural streptomycin 300 times, 500 times and 500 times imidacloprid and imidacloprid 1000 times, high efficiency chlorocyanochloride 1000 times + avermectin 1500 times, sprayed against the pest situation Shi. 3 Amaranth 3.1 Variety and breeding Seedlings are selected from broadleaf aphids with short dormancy period and strong cold resistance, such as 791 snow amaranth and Shouguang solitary red. From the end of March to April 10, seedlings were planted in the open field and planted with an acreage of 1 mu. The area required for breeding was 0.5 mu, and the seed amount was 3 to 4 kg. Immediately after sowing, use herbicides for leeks (such as ditergamine). The management of leeks is strengthened in the summer and no harvesting is required for planting. At the beginning of September, cabbage was harvested and fertilized for soil preparation. The lotus root was 1.2m in width, 20cm in length, and 15cm in height. Each row was planted with 5 rows of leeks, with 20 to 28 roots per well (after grading). Row spacing was 20cm, and the distance was 10cm. , Watering in time after planting, and strengthening management after planting to promote the growth of leeks. At the end of October, it is covered with plastic sheds, covered with small arches or haystacks and lifted at night during the day. The temperature is 20 to 25°C during the day, 10 to 12°C at night, and the humidity is 80% to 90%. New Year's Day can be listed on the first day. Strengthen the insulation measures, the Spring Festival can receive two, after the holiday to receive three. At the end of March, the watermelon was completely planted. In the management process, leek easy to produce powdery mildew, gray mold and whitefly, etc., can be selected for prevention and treatment of disease occurrence. (Author: Liang Jinxiu Zhang Qiang Li Hu Xinfeng new units:? Yongcheng city in Henan Agricultural Technology Promotion Center)
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