Spring wheat clings to lodging
2024-10-21 07:00:50
1. Spraying paclobutrazol (PP333) sprayed 200 kg paclobutrazol solution (200 kg/mu) per acre for 30 d, which can make the plant dwarf and increase lodging resistance, and can also treat wheat powdery mildew and increase nitrogen absorption and utilization of plants. 2. The application of uniconazole zoconazole is a new and efficient plant growth regulator, and its biological activity is 6-10 times higher than that of paclobutrazol. Application on wheat can prevent plant lodging under high-density and high-fertilizer conditions, and reduce infertility spikelets; in the case of no wind or lodging, application of uniconazole in wheat yielded an average yield increase of 15.4% compared with the control. Application method: Within one week before the jointing of wheat, 30 kg of 30-40 ppm uniconazole solution is sprayed. 3. The spraying of chlormequat on the wheat fields with large populations and prosperous growth, spraying 0.1-0.3% chlormequat solution per acre for 50-75 kilograms at the beginning of the jointing stage can restrain internode elongation, make the plants dwarf, and the stem base becomes rough , to prevent lodging; if mixed with 2.4-D butyl ester, but also treat broad-leaved weeds in wheat. 4. Spraying auxiliaries in the jointing stage of wheat, using 15-20 ml of assistant agent per mu and spraying 50-60 kg of water on the foliage, which can inhibit internode elongation, prevent late lodging, and increase production by 10%-20%. .
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