专用控释肥在西瓜上的施用效果研究  

Study of Effect of Controlled-release Fertilizer on Watermelon

作　　者：杨广怀 马文丽[1] 井大炜[2] 刘春生[3] 

机构地区：[1]山东省泰安市岱岳区农业局,山东泰安271000 [2]德州学院 [3]山东农业大学资源与环境学院

出　　处：《现代农业科技》2010年第15期137-138,共2页Modern Agricultural Science and Technology

基　　金：国家"十一五"科技支撑计划项目(2006BAD10B07)

摘　　要：以黑彤K-8西瓜为试材研究了控释肥对西瓜产量、中心糖/边糖、土壤养分损失的影响。结果表明:控释肥能显著提高西瓜产量,在等养分施用下比习惯施肥增产22.61%,而且在养分减少20%的情况下,仍能增产10.81%;等量控释肥、减量控释肥、减氮控释肥处理的肥料生产率分别是习惯施肥处理的2.14、1.93、1.29倍,中心糖/边糖以及地表径流中的NH4+-N和NO3--N含量均低于习惯施肥处理。由此认为,控释肥是一种增产、经济及对环境友好的肥料。The field experiment was conducted to study effect of controlled-release fertilizer on yield ,center sugar/limbic sugar、nutrient loss of watermelon with Heitong K-8. The results showed that controlled-release fertilizer could increase watermelon yield significantly ,generally speaking, which increased by 22.61% or 10.81% than that of conventional fertilizer when the same quantity or 80% of fertilizers were applicatied. The fertilizer productivity of treatments of equal controued-realease fertilizer, less controlled-release fertilizer and less nitrogen in controlled-release fertilizer was 2.14 times,1.93 times and 1.29 times of coventional fertilization respectively. In addition,the center sugar/imbic sugar、the content of NH4＋-N and NO3--N in the surface runoff were clearly lower than coventional fertilization. It is proposed that controlled-release fertilizer was economic and good for environment and could increase yield the same time.

关 键 词：西瓜 控释肥 产量 肥料生产率 

分 类 号：S651[农业科学—果树学] S143.15[农业科学—园艺学]