First, the planting specifications are 4 wide, north-south, and the sulcus is 20 cm wide and 20 cm deep. During the autumn sowing, 0.7-1 meter wide space was left in the middle and wheat was planted on both sides. In the middle and late April of the following year, 1 line of watermelon was planted in an empty space with a plant spacing of 0.5 meters. 2 plants per hole were planted and 650 plants were planted per acre. In the middle of May, two rows of cotton were transplanted on both sides of the watermelon, with a spacing of 1 meter, a plant spacing of 25 centimeters, and about 3,000 plants per acre. Second, cultivation technology The wheat varieties Yangmai 11 and Yangmai 158 were selected as the wheat varieties. Watermelon selection Su Mi 5, Feng Le 2 and other varieties. Cotton uses high quality and high quality products such as Qianmian No.4 and Kemian No.1. 2. The appropriate time for planting wheat is sown in the middle and late October. In the middle and late March of the following year, watermelons were planted in small sheds, covered with straw insulation at night, and planted in mid-to-late April. Cotton is planted in a greenhouse in late March and early April, and planted in wheat in mid-May. 3. Apply base fertilizer to wheat and cotton to apply base fertilizer as required. Watermelon line before the winter in the empty area, per acre Shi maturity of high-quality organic fertilizer 1500-2000 kilograms, deep-turning, and then do soil ridge. 4. Strengthen management (1) wheat. Wheat should pay attention to the application of dialling and booting fertilizer, and appropriate foliar fertilizer should be applied late to prevent premature aging. (2) Cotton. Because of the fertility of the cotton fields in Guaita, it must be timely pruned and controlled to prevent madness. In the early years, we must prevent red spiders. In order to prevent blindness in the following year, we must use high-efficiency, low-toxicity, low-residue pesticides to prevent contamination of watermelons when spraying, and it is forbidden to use highly toxic pesticides. (3) watermelon. The watering of watermelon is controlled during fruiting period to prevent leggy and promote fruit setting. When the young larvae reach the size of the eggs, watering should be strengthened to promote the growth of the larvae. If the basal fertilizer is relatively full, no top dressing is generally required during this period. To the fruit expansion peak (when the size of the mouth size), fertilizer urea 10 kg per kilogram, potassium sulfate 10 kg, the method is in 40-50 cm away from the melon root open pond facilities, exposed watermelon often used three vine pruning, retain the main Manny and two robust side vines, timely removal of excess side vines to reduce the ineffective consumption of nutrients, and promote the supply of nutrients concentrated to the fruits. The timely spread of vines, so that the main vines and side vines evenly distributed in the field, make full use of the temperature and light resources to promote early maturity, morning market. Conditional artificial pollination can be carried out. Timely prevention of watermelon pests and diseases, and timely harvest market.
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