Wheat skillfully prevents lodging in spring

1. Spraying 200ppm paclobutrazol solution 30 kg / mu during wheat emergence period could dwarf plants, enhance lodging resistance, cure wheat powdery mildew and improve nitrogen absorption and utilization. 2. Uniconazole is a new type of efficient plant growth regulator, and its biological activity is 6 times higher than that of paclobutrazol. Application on wheat could prevent plant lodging under high density, high fertilizer and water conditions, and reduce sterile spikelets; in the case of no wind and no lodging, the wheat treated with uniconazole increased an average yield of 15.4% compared with the control. Application method: 50 kg of 30-40ppm uniconazole solution was sprayed per mu within a week before jointing of wheat. 3. Spraying clenbuterol on wheat fields with large and prosperous populations, spraying 0.15% murine 0.3% dwarfing solution 50Mu 75kg per mu at the early jointing stage can inhibit Internode elongation, dwarf the plant, make the stem base thick and hard, and prevent lodging; if mixed with 2.4% D-butyl, it can also control broad-leaf weeds in wheat fields. 4. Spraying zhuangsu at the jointing stage of wheat, 15 ml of zhuangsu was used per mu, and foliar spraying of 50 ml of water and 60 kg of water could inhibit the elongation of internodes, prevent lodging in the later stage, and increase yield by 10% and 20%.