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[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。
[Objective] The study aimed to study the water and fertilizer coupling modes of eggplant yield in winter greenhouse in southern Ningxia, providing reference for agricultural vegetable standardization and cost-effective cultivation in mountainous areas of southern Ningxia. [Method] The quadratic common rotation combination design was used to simulate the main cultivation factors affecting the winter eggplant yield in the greenhouse of southern Ningxia. [Result] The effect of 3 factors on eggplant yield in winter was obvious. Water and potassium had a negative effect on eggplant yield, and nitrogen showed positive effect. The effect of 3 factors on the main effect of eggplant yield was in order of K> N > Water. The single-factor effect showed that the eggplant yield increased with the increase of irrigation amount, and the highest yield was 159253.5kg / hm2 when the irrigation water was 8250m3 / hm2. Afterwards, the eggplant yield decreased gradually ; With the increase of N application rate, the eggplant yield increased significantly. When the N application rate was 900kg / hm2, the yield was the highest, 158782.5kg / hm2, and then decreased with the increase of N application rate. With the increase of K amount, the eggplant yield increased gradually. When the K amount was 712kg / hm2, the highest yield was 160195.5kg / hm2. Afterwards, the yield of eggplant decreased significantly with the increase of K amount. [Conclusion] The recommended index of 3 factors when the winter eggplant yield was more than 151105.5kg / hm2 in the solar greenhouse in southern Ningxia was 7500 ~ 8000m3 / hm2 irrigation amount, 900 ~ 950kg / hm2 N application rate and 850 ~ 900kg / hm2 application rate .