How to control weeds by planting summer corn?
How to control weeds by planting summer corn? Please introduce the method of planting summer corn can refer to the following two methods to control weeds: the "blocking" weeding technique carries out "blocking" treatment before corn seedlings after sowing, that is, the combination of soil sealing herbicides and sterilizing herbicides is adopted. one application has the dual effect of soil sealing and killing Ming grass. Rotary ploughing plots can only use soil closed herbicides. Medicament selection and formula: soil closed herbicide, atrazine 38% suspension 100ml 150ml + Acetochlor 50% EC 100ml, or isopromethrin 40% suspension 200ml per mu. Sterilized herbicide, 41% glyphosate water agent 150~200ml per mu, diluted with water 50kg, and evenly sprayed on the surface. The weeding technique of "stem and leaf" treatment was in the 3-5-leaf stage of maize (2-4-leaf stage of weeds). The herbicide of stem and leaf treatment was used to spray stems and leaves to control weeds. Agent selection: per mu can choose nicosulfuron 4% suspension agent 70~100ml, or nicosulfuron 4% suspension agent 50% 80ml + atrazine 38% suspension agent 100~150ml, water 50kg, uniform spray. The sensitivity of different maize varieties to stem and leaf herbicides was different, and its safety order was that horse tooth type was greater than hard grain type, popcorn was higher than sweet corn, and corn was generally sensitive before two-leaf stage and after ten-leaf stage, so it should be avoided. The fan-shaped sprinkler should be selected for herbicide spraying, and the water should be evenly sprayed according to the safe dosage, without re-spraying or leakage spraying. The high limit of recommended dosage should be selected for the soil with fertile land and high content of organic matter. The low limit is selected for the land with sandy land, barren soil and low organic matter content. Click to get more corn planting techniques click to get more herbicide application techniques click to get more pesticide application techniques
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How to control aphids by planting soybeans?
How to control aphids by planting soybeans? Please introduce the method that soybean aphids are important pests to soybean. In recent years, due to the emergence of warm winter and neglect of control, the damage of soybean aphids has become more and more serious year by year. It is predicted that soybean aphids will occur moderately in 2000.
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How to control weeds in cotton fields?
How to control weeds in cotton fields? Please introduce the methods of planting cotton and refer to the following methods to control weeds: (1) the species and occurrence characteristics of weeds in cotton fields China is one of the largest cotton producing countries in the world, with Shandong, Hebei, Henan, Jiangsu, Hubei, New and Anhui provinces as the main cotton regions. There are mainly 2 weeds in cotton field.
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