Cultivation techniques of Spring Maize intercropping Autumn Cucumber

1. Choose the right variety. Corn chooses precocious compact varieties, such as Luyuandan 4, Tobacco 15, 1243, Huang 417, etc., cucumber selects varieties with strong disease resistance, heat tolerance, shade tolerance and melon bearing ability, such as Jinyan 7, etc., and early spring cucumber varieties with strong cold tolerance should not be selected. 2. Strengthen the management of fertilizer and water. In the early stage of corn growth, 20 kg standard nitrogen fertilizer should be applied per mu, and the soil should be watered after topdressing. Cucumber root melon after sitting, according to the growth of cucumber combined with watering, flexible topdressing. Topdressing can be applied alternately with chemical fertilizer and human feces and urine to improve the nutritional status of plants. Generally, 15 kg of urea or 25 kg of ammonium sulfate and 1500 kg of human feces and urine are applied per mu. The fertilizer and water management of maize in the middle and later stage can be combined with cucumber. 3. Spray medicine to prevent disease. Cucumber is seriously harmed by downy mildew and powdery mildew during its growth, so it is necessary to seize the opportunity to control each disease by spraying several fungicides alternately at the initial stage of the disease. Downy mildew can use 25% pyrethromycin 600 times, 40% ethyl phosphate aluminum 200 times, 75% chlorothalonil 500 times. 64% poisonous alum 400x liquid, powdery mildew can be used agricultural kang120 water agent 150x liquid, 25% fenrucine 2000 times liquid and so on. 4. Strengthen the bottom ventilation. In the middle and later stage of corn growth, the old leaves at the base of corn should be removed in time, shading should be reduced, and the exhausted straw in the later stage of corn should be fully used to climb seedlings and bear melon.