不同砧木及配套栽培技术对大棚西瓜产量和品质的影响

采用当地大棚西瓜主栽品种早佳作接穗，选择10 个砧木品种进行嫁接，筛选适宜的砧木，同时进行嫁接西瓜栽培密度、整枝方式、氮肥施用量等配套栽培技术试验。结果表明，适合沿海大棚西瓜嫁接的砧木有京欣砧1 号、京欣砧2 号、京欣砧冠、甬砧3 号、葫芦砧G1 等5 个品种；嫁接西瓜的适宜栽培密度双蔓整枝为700 株·（667 m2）-1、三蔓整枝为500株·（667 m2）-1；适宜的氮肥施用量为15 kg·（667 m2）-1。

Effects of Different Stocks and Matching Cultivation Technology on Watermelon Yield and Quality under Plastic Tunnel

Adopting‘ Zaojia’— a main watermelon variety in local plastic tunnel as scion，this study selected 10 stock varieties to screen suitable stock. At the same time，experiments on cultivation density，training type， nitrogen fertilizer application amount，etc. matching cultivation technology were carried out.‘ Jingxinzhen No.1’，‘Jingxinzhen No.2’，‘Jingxinzhenguan’，‘Yongzhen No.3’，‘Huluzhen G1’，all together 5 stock varieties were selected to be suitable for the coastal regions to conduct grafting. The appropriate density for 2 stems training is 10 500 plants· hm-2，for 3 stems training is 7 500 plants· hm^-2，and the appropriate nitrogen fertilizer application amount is 225 kg· hm^-2.