河南农业科学2016，Vol.45Issue(1)：29-35,7.DOI:10.15933/j.cnki.1004-3268.2016.01.006
喷施不同叶面肥对棉花前期生长发育和养分吸收的影响
Effect of Spraying Different Foliar Fertilizers on Cotton Plant Growth and Nutrient Absorption at Early Stage
摘要
Abstract
The cotton plant growth and nutrient absorption after spraying different concentrations of urea, ammonium nitrate or potassium dihydrogen phosphate at early stage were studied,to explore the rational application method of foliar fertilizers at early stage of cotton. The results indicated that the cotton plant growth rate,biomass and leaf area were significantly higher in the spraying foliar fertilizer treatments than the control treatment(spraying water). In seedling stage,compared with the spraying ammonium nitrate treatment,the growth status of the cotton plant was better in spraying 10 g/L urea treatment, but there were no significant differences in budding stage between these two treatments. The correlation function indicated that the optimal spraying concentration of urea was 11. 1 g/L at seeding stage,and 49. 1 g/L at budding stage. In addition,there was better effect with the combining application of 10 g/L urea and 5 g/L potassium dihydrogen phosphate on the cotton plant. In conclusion,it could provide adequate nutrients, increase leaf area and light utility efficiency by combining application of 10 g/L urea and 5 g/L potassium dihydrogen phosphate on the cotton plant at early stage.关键词
叶面肥/棉花/前期/生长发育/养分吸收Key words
foliar fertilizer/cotton/early stage/growth and development/nutrient absorption分类
农业科技引用本文复制引用
刘爱忠,李鹏程,刘敬然,董合林,孙淼,王晓茹..喷施不同叶面肥对棉花前期生长发育和养分吸收的影响[J].河南农业科学,2016,45(1):29-35,7.基金项目
中央级公益性科研院所基本科研业务费专项(1610162014005) （1610162014005）
国家棉花产业技术体系项目(CARS-18-17) （CARS-18-17）
