土壤学报2011，Vol.48Issue(2)：375-382,8.
新型包膜缓释肥对大白菜生理特性、产量及品质的影响
EFFECTS OF HOMEMADE COATED CONTROLLED RELEASE FERTILIZERS ON PHYSIOLOGICAL CHARACTERISTICS.YIELD AND QUALITY OF CHINESE CABBAGE
摘要
Abstract
Three controlled release fertilizers with N-P2O5-K20 ratio being 14.25-14.25-14.25, 13.5-13.5-13.5 and 12.75-12.75-12.75, separately were prepared out of a common compound fertilizer (N-P2O5-K2 O: 15-15-15 ) by coating it with fly ash and organic agglomerant.A field experiment was conducted to study effects of the coated controlled release fertilizers on physiological characteristics, yield and quality of the Chinese cabbage growing in the field.Results show that the fertilizers increased chlorophyll content, photosynthetic rate, transpiration rate and stomatal conductance and decreased stomatal limitation (Ls) in the leaves of the plant during its late growth stage, and improved the plant parameter characteristics, and biomass per head by 0.10 ～0.33 kg, yied by 9.72％～33.1％.In addition, the coated controlled release fertilizers decreased NO3-N significantly and organic acid contents by a certain extent in the functional leaves of the plant, and improved sugar-acid ratio and soluble sugar and Vc contents of the head of the plant at the harvest stage.关键词
包膜缓释肥/大白菜/生理特性/粉煤灰/品质Key words
Coated controlled release fertilizer/ Chinese cabbage/ Physiological characteristics/ Flyash/ Quality分类
农业科技引用本文复制引用
邱现奎,董元杰,胡国庆,王艳华..新型包膜缓释肥对大白菜生理特性、产量及品质的影响[J].土壤学报,2011,48(2):375-382,8.基金项目
"十一五"国家科技支撑计划项目(No.2006BAD10B07)和山东农业大学博士后基金(No.76226)资助 （No.2006BAD10B07）
