沼肥对棉花生长发育及产量的影响

沼肥是一种优质的有机肥料,施用沼肥不仅能改良土壤,确保农作物生长所需的良好微生态环境,还有利于增强作物抗冻、抗旱能力,减少病虫害,提高作物产量。试验采用三因素三水平正交试验设计方法,对不同时间沼液浸种、不同浓度沼液叶面喷施、沼液和化肥追施等农艺措施组合进行田间试验研究。结果表明,沼液浸种和追施对棉花产量影响较大,其对产量的影响顺序依次是浸种>追肥>喷施。其中沼液浸棉种8 h、1 hm2追施150 kg尿素和15 t沼液对促进棉花产量效果最好。

Effect of Anaerobic Fermentation Residues on Growth and Yield of Cotton

The anaerobic fermentation residues is a good-quality organic fertilizer.Biogas fertilizer can not only improve soil and ensure a good micro-ecological environment required by the crops growth,but also enhance freezing and drought resistance of crops,prevent insect pests and crop diseases and enhance crop yield.The field experiment of agronomic measures treated with anaerobic fermentation residues,such as soaking seeds,sprinkling leaf of cotton and top application was conducted to popularize anaerobic fermentation residues in large area of Xinjiang.The results demonstrated that soaking seeds of cotton with anaerobic fermentation residues had the greatest effect on yield of cotton.Its different effect on yield of cotton showed following sequences:soaking seeds> top appliation>sprinkling leaves of cotton.