First, species and environmental choices. Election is far from chemical plants and sources of living pollution. The rivers and rivers are clean and tidy, no poisonous, high-residue pesticides are used, and fertile lands with flat, easy irrigation and drainage facilities are available, preferably rice fields. In the summer and autumn seasons, heat-resistant, disease-resistant and disease-resistant varieties are selected, such as heat-resistant and green-resistant varieties, and winter-resistant varieties, such as Shanghai Qing, are selected.
Second, soil preparation and fertilization. The plots remove weeds and plow the soil 10-15 cm deep. Before ploughing, apply sufficient rotted chicken shed ash fertilizer and apply 3,000 kg per acre; after ploughing, apply 50 kg of compound fertilizer per acre. If you then broadcast small green vegetables, then after the end of the harvest, you must stop baking for 10 days before sowing, so that the soil becomes dry and bactericidal.
Third, sowing seeds. The sowing ground was made into a flat rake with a width of 2 meters and a height of 5 centimeters. The amount of 1.5 kilos per acre was used. After sowing, the soil surface will be patted with a hoe, and in case of drought, the soil should be settled with a foot. Finally, water should be poured into the soil and the seedlings can emerge after three days.
Fourth, pest and weed control. In order to prevent the occurrence of diseases, each two small green vegetables, with Bordeaux mixture (copper sulfate: lime: water = 1:2:200) or 5000 times Luhong No. 1 on the vegetable alternately disinfected one time, for the prevention of grass, broadcast After the seedlings were sprayed with 48% trifluralin herbicide; in order to prevent armor and other hazards, sprayed once after sowing or 2 leaves. In the future, if small amounts of insect pests are found, they should be sprayed with high efficiency, low toxicity, low residue pesticides such as BT or KBA.