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Xia Mai is an important large-scale grain crop in China, planted in both the north and the south. In the process of growing wheat, in addition to the pests and diseases , there is a phenomenon that will lead to severe wheat yield reduction, that is, lodging, this article will introduce how to prevent wheat lodging.
Agricultural control measures: 1. Select wheat varieties that are resistant to lodging. 2. Carry out reasonable close planting. 3. Apply base fertilizer to the control of cotton fields with sufficient peach fertilizer. 4. For the growing wheat seedlings, use stone rolling to suppress before the jointing. 5. Different types of seedlings are used to apply jointing fertilizer, and wheat fields with higher fertility levels are not allowed to use jointing fertilizer. 6. Improve the matching of farmland water conservancy facilities, open up the ditch, clear the water, reduce the dark water, and promote the good development of the root system.
Chemical control measures: mainly by applying plant growth regulators , hindering the biosynthesis of endogenous gibberellin in wheat, controlling cell elongation, but not inhibiting cell division, thereby controlling vegetative growth of wheat, promoting reproductive growth, and developing wheat roots. The dense leaf is thick and the leaf color is dark green, which enhances the lodging resistance of wheat. For the growing wheat seedlings, one can spray the auxin or the ketamine before the wheat jointing, and use 10-20 ml of eutrophic supplement or 2.5-5.0 gram of ketamine per 667 square meters (1 mu). Sprayed with 50 kg of water; the second is to return to the jointing stage of wheat, 667 square meters with 25-30 ml of Zhuangfengan, 25-30 kg of water; third is to spray paclobutrazol solution about 10 days before wheat jointing , generally 667 square meters with paclobutrazol powder 30-40 grams, 50 grams of prosperous, sprayed with water 30-40 kg; fourth is sprayed 0.15%-0.3% of short-term liquid in the early stage of wheat jointing, 667 square meters 50-70 kg; five is in the early stage of wheat spike differentiation, 667 square meters with 15 grams of No. 2 of Huanong Chemical Control, sprayed with 30 kg of water.
When spraying the above plant growth regulators, it should be applied strictly according to the dosage, no heavy spray, no leakage, and should be sprayed on a sunny afternoon.
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