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本文阐述了不同栽植密度大棚黄瓜各生育时期的叶面积指数、盛收期群体结构和叶面积的调控措施．大棚黄瓜在每亩２０００—６０００株的密度范围内，叶面积指数与密度成正相关．采收初期，密度愈大、产量愈高，盛收期以每亩５０００株的密度日产量最高。大棚黄瓜的最适叶面积指数为３．４５—４．０３，ｙ＝１８３ｘ—２４．４５ｘ２－１４２，ｒ＝０．８９８＊。采取密植、摘心、加密行、前期进行双层覆盖等措施，可调节、控制叶面积指数，提高早期产量、总产量和产值。
In this paper, the control measures of leaf area index, population structure and leaf area in different growth stages of greenhouse cucumbers were described. Greenhouse cucumbers per acre in the range of 2000-6000 strains, leaf area index and density into a positive correlation. Early harvest, the greater the density, the higher the yield, the highest yield of 5000 plants per mu per day, the highest yield. The optimum leaf area index of greenhouse cucumber was 3.45-4.03, y = 183x-24.45x2-142, r = 0.898 *. To take close planting, topping, encryption line, double coverage at the early stage and other measures to adjust and control the leaf area index, improve early yield, total output and output value.