Lodging is one of the main factors affecting the high yield and stability of wheat. The lodging of wheat mainly occurs in high-yielding wheat fields with sufficient fertilizer and water, long wheat, large population, and depressed fields. Early spring is a key period to prevent wheat lodging. The comprehensive anti-falling technical measures are: after the first section of wheat is fixed (ie, late jointing), topdressing and watering, and 7.5~10 kg of urea applied to the mu, which can reduce the invalidity. Tillering, reducing the length of the base internode, promoting the thick stalks, preventing the lodging in the later period, and increasing the number of kernels and improving the quality. 1. Deep ploughing and deep cultivating is an important measure to control the population and prevent lodging. For the large population (high-yielding wheat fields with more than 900,000 heads in the acre period) and the wheat fields with a long trend, the cultivating is 8-10 cm deep before and after getting up. Cut off the floating roots, inhibit small tillers, promote the growth of the main stem and the big tillers, accelerate the polarization, delay the sealing of the ridges, and promote the robust growth of the plants. 2. Appropriate suppression of wheat fields with large population and high plant height, in addition to controlling the returning of green fertilizer and deep cultivating, it is also necessary to suppress the roots before the jointing, in order to promote the root system, to thicken the base of the stem and reduce the plant height. . The suppression should be carried out 2 to 3 times depending on the length of the prosperous period. Each time interval is about 4 days, the principle of “wet, morning, and cloudy†should be mastered during the suppression. 3. Chemical control and chemical control is one of the effective measures to prevent wheat lodging. For large and long-growing wheat fields or high-yielding varieties, use 15% paclobutrazol 30~50g or 20% Zhuangfengan in wheat. 30~40 ml of emulsifiable concentrate and 30 kg of water are sprayed to control the plant growth, shorten the internodes, reduce the plant height, improve the root activity and enhance the lodging resistance. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone
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