宁夏南部山区温室冬茬茄子产量的水·肥耦合模式研究

目的]研究宁夏南部山区温室冬茬茄子产量的水、肥耦合模式,为宁夏南部山区设施农业蔬菜规范以及节本增效栽培提供参考。方法]运用二次通用旋转组合设计,对影响宁夏南部山区日光温室冬茬茄子产量的主要栽培因素灌水量、施N量、施K量进行了数学模拟。结果]3因素对冬茬茄子产量作用效果明显,水分和钾素对茄子产量总体表现为负效应,氮素表现为正效应,3因素对茄子产量主效应影响大小顺序为钾素〉氮素〉水分;单因素效果表明,随着灌水量的增加,茄子产量逐渐增加,当灌水量为8250m3/hm2时,产量最高,为159253.5kg/hm2,之后随着灌水量的增加,茄子产量逐渐下降;随着施N量的增加,茄子产量显著增加,当施N量为900kg/hm2时,产量最高,为158782.5kg/hm2,之后随着施N量的增加,茄子产量逐渐下降;随着施K量的增加,茄子产量逐渐增加,当施K量为712kg/hm2时,产量最高,为160195.5kg/hm2,之后随着施K量的增加,茄子产量显著下降。结论]宁夏南部山区日光温室冬茬茄子产量大于151105.5kg/hm2时,3因素的推荐指标为灌水量7500～8000m3/hm2,施N量900～950kg/hm2,施K量850～900kg/hm2。

Study on the Coupling Model of Water and Fertilizer for the Greenhouse Eggplant Yield in Winter Cropping in Ningxia Southern Mountain Region

Objective] The research aimed to study the coupling model of water and fertilizer for the yield of winter eggplant in greenhouse in Ningxia southern mountain region and provide reference for the criteria and cost-saving cultivation of agriculture vegetables in Ningxia southern mountain region.Method] By using quadratic general rotary unitized design,the mathematics simulation was made on the main cultivation factors (irrigated amount,N application amount,K application amount) that affected the greenhouse ...