1, technical points The comprehensive mechanization technology for corn widening and compaction includes key techniques such as fine seed selection, wide spacing, narrower plant spacing, increased planting density, and full-scale mechanical management. It is a high-yielding, high-efficiency cultivation technology that increases corn production and reduces labor input. (1) Selected fine varieties. The varieties of maize with good yield, close planting and strong resistance were selected and seed selection was conducted before sowing. The seeds after the selection were full, uniform in size, and the germination rate was above 95%. (2) timely broadcast. Spring maize planting in plain areas is suitable from mid-March to mid-April, and summer maize planting is suitable from mid-May to mid-June. The corn seedling machine is used to complete the operations such as sowing, fertilizing and spraying herbicides in one operation. The seed amount per acre is 1.5-2.5 kg, and the basic fertilizer is three yuan compound fertilizer (15-15-15) 50 kg per acre. 2KG. Each hole sowing 1-2, sowing deep 3-5 cm. (3) Proper close planting. Wide-line double plant or wide-row dense planting. The line spacing is widened to 76-90 cm and the planting density is 4500-5500 plants per acre. (4) Cultivate fertilizer. According to the surface weeds and the soil moisture, the cultivators are usually tillers or rows of cultivators and cultivators. Strictly control the speed, generally slow. Generally, cultivating 2 times, respectively, in the seedling stage and bell-mouth period, respectively topdressing 8 kilograms of urea and 20 kilograms of urea, 15 kilograms of potash fertilizer, crop nursery belt in turn widened, fertilization depth is generally 10 to 25 cm. (5) Chemical regulation. In the 6-9 leaf stage, special corn modifiers are used. (6) Pest control. Timely control of diseases such as leaf spot, sheath blight, rust, ground tiger, corn borer, and roundworm. (7) Mechanical harvesting. Take picking type or threshing type corn combine harvester to complete the operations of picking, assembly, dumping, and straw returning at one time. 2, increase production efficiency goals Demonstration and promotion of more than one million mu in the province. Under the same production conditions, a wide range of mechanization techniques for densification will be adopted, and 500-1000 effective plants per mu, 50-100 kg per mu will be increased, and the cost will be about 150 yuan. At present, there are nearly 100 kinds of plant extracts popular in the world, and the common ones are as follows: Food Additives Powder,Sophora Extract,Propoli Liquid Extract,Apple Cider Vinegar Powder Fufeng Sinuote Biotechnology Co.,Ltd. , https://www.sntextract.com
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