崇明山药品种筛选及其安全生产技术研究

Study on for Chongming Yam Variety Screening and Its Safety Production Techniques

采用一代更新种繁育,合理密植,科学施肥和病虫害科学防治等技术,研究了不同技术对山药产量、生长发育与经济效益的影响。结果表明,崇明六柱头和江苏双胞短蔓这两个山药品种最适宜成为崇明主推品种;采用绿色综合防治技术使地下害虫的防治效果达到85.4%,产品的为害率从95.6%下降至1.6%;应用山药无公害标准化生产技术规范,经在135.3hm2山药大田示范,平均产量从38475kg/hm2提高到46305kg/hm2,经济效益比对照区增加15870元/hm2,示范区总计新增经济效益214.7万元。

Techniques of one regeneration species breeding, rational close planting, scientific fertilization, integrated pest control, etc. were carried out. Effects of different techniques on yam yield, growth and economic benefits were studied. The results indicated that Chongming Liuzhutou yam and Jiangsu Shuangbao yam were appropriately taken as the main popularized varieties of Chongming yam; By using green integrated control techniques, the control effects to underground pests reached 85.4% and the damage rate of product decreased from 95.6% to 1.6% in safety production technique zone; By applying pollution-free standardization produc- tion techniques and 135.3 hm^2 field demonstration of yam, the average yield increased from 38475kg/hm^ 2 to 46305kg/hm^2, increased 15870 RMB/hm^2 than one in CK respectively, and newly added economic benefit in demonstration zone was 2,147 million RMB.