Lodging is one of the main obstacles affecting wheat yield under high fertilizer and water conditions. In recent years, the popularization and application of plant growth regulators in wheat production has opened a new way to prevent lodging and promote yield increase, and is an important supporting technical measure for high yield and stable production of wheat.
Spraying paclobutrazol (PP333) at the beginning of wheat, spraying 30 kg per gram of paclobutrazol solution with concentration of 20010-6, can make the plant dwarf, enhance the lodging resistance, and can also treat wheat powdery mildew and increase the absorption and utilization of nitrogen.
Application of Uniconazole Uconazole is a new and efficient plant growth regulator. Applying it on wheat can prevent plant lodging under high-density and high-fertilizer conditions, and it has the function of reducing infertility spikelets and increasing 1000-grain weight. According to experiments, the average application of uniconazole in the case of unsuitable wind and lodging was 15.4% higher than that of the control. Application method: 1 kilogram before the jointing of wheat, 30 kg of sprayed uniconazole solution of 3010-6 ~ 4010-6.
The spraying of chlormequat on the wheat fields with large populations and strong growth rate, spraying 50 to 75 kg of Chlormequat solution 0.15% to 0.3% in the initial stage of jointing, can effectively inhibit internode elongation of wheat and make the plant dwarfed. The base is hard to prevent lodging; if it is mixed with 2,4-D butyl ester, it can also treat broadleaf weeds.
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