Effects of Spraying Chemical Substances on the Seedling Growth and Yield of Wheat under Drought Stress

Effects of Spraying Chemical Substances on Seedling Growth and Yield of Wheat under Drought Stress YAO Wei-chuan ZHANG Cong-yu LIU Ai-rong XU Lei (Anhui Technical Teachers College, Fengyang 233100) Long can effectively reduce the stomatal opening of leaf surface. Dryland and triacontanol increase chlorophyll content. The spraying of these three chemicals at the wheat panicle stage 4 and filling stage can significantly increase the yield, with triacontanol being the best, with a yield increase of 2040.9 kg/hm2 over the control. §/崦坩 drought is wheat production and The main limiting factor for obtaining harvest is that chemical water-saving technologies have certain effects on drought prevention and drought resistance. Jilin Agricultural Sciences, 2000 2 Sun Hongbo. Analysis of Causes of Increasing Wheat Yield with New Drought Resistance Agents . Shandong Normal University studied Zhang Xianzheng. Preliminary report on the physiological effects of M1 production increasing factor on drought resistance of wheat . Shenyang Agricultural University Luo Wenxin et al. Effects of Plant Growth Inhibitors on Drought Resistance of Wheat Arid area 5 Zhang Zhiliang. Plant physiology experimental guidance. Beijing: Higher Education Press, 1998. 6 Rong Ting Zhao. Field trials and statistical analysis. Beijing: China Agricultural Science and Technology Press, (responsibility editor: Luo Yu responsibility proofreading: Luo Yu) (on the next page 39) density 3.75X104 strains / hm2 or so; 2 can be planted with equal spacing or wide row narrow planting, density 4.20 About X10Vhm2.

2.3 Reasonable fertilization: 0.8 is appropriate, input pure nitrogen 3M~330 5kg/hm2; Miao Fei applies urea 45kg/hm2; Bud fertilizer applies urea bell fertilizer applies urea 195kg/hm2; Cover top fertilizer applies urea 75kgim2. 2.4 Chemical control is generally used The total weight of the Chung-Jie (Dyachithine) pure product is about 90g/hm2, and the seedlings are not strong and the weather is dry and needs to be reduced as appropriate.

2.5 Strengthen Pest Control Prevent and control bollworm, red spider and red bollworm. Strengthen forecasting and guidance, control its hazards, keep the buds in the upper middle, strive to pour over the waist, and cover the top with autumn peaches.

(Editor: Sun Hongzhong Responsibility proofreading: Sun Hongzhong)