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本试验旨在通过研究分析不同产量水平下西瓜的产量构成因素及植株生长发育特点,高产西瓜的干物质积累与分配规律,氮磷钾养分含量与分配等,初步总结出西瓜高产栽培生长发育规律。材料与方法试验于1985～1988年分别在开封市农科所、开封市郊区、杞县、通许等地进行,采用品种为丰收二号一代杂交种、汴梁一号、中育6号;双蔓整枝,种植密度每亩667—752株,田间定点3—5株,观察植株长相,每3天一次;西瓜主要生育期取样3—5株调查植
The purpose of this experiment is to study and analyze the yield components of watermelon and the characteristics of plant growth and development under different yield levels, the law of dry matter accumulation and distribution of high yield watermelon, the nutrient content and distribution of NPK and so on. . Materials and Methods Experiments were carried out in Kaifeng City Agricultural Science Institute, Kaifeng City suburbs, Qi County, Tong Xu and other places from 1985 to 1988, respectively. The cultivars were Bengliang 1 and Zhongyu 6, Vine pruning, planting density per acre 667-752 strains, 3-5 field-fixed point to observe the plant appearance, once every three days; watermelon main growth period sampling 3-5 plant investigation