崇明山药品种筛选及其安全生产技术研究

通过对崇明山药品种的筛选、化肥和病虫防治等关键系统技术的应用，基本明确了能适应本地区生产的品质佳、产量高的山药品种及其安全生产技术。崇明山药安全生产技术研究结果表明：安全生产标准化示范区较常规示范区，每667㎡产量从2197㎏提高到3081㎏，提高40.24%，采用杀虫灯和高效低毒低残留农药的合理使用来控制地下害虫的发生，地下害虫的防治效果从43.6%提高到94%,产品的为害率从95.6%下降至1.6%。制订了一套崇明山药无公害标准化生产技术操作规程。经示范试验135.3 hm2，每667㎡山药平均产量由 2565㎏提高到3087㎏，可增加经济效益1058元，135.3hm2山药可增经济效益214.7万元。

Research on the Variety Screening and Safety Production Technology of Chongming Yam

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 production techniques and 135.3 hm2 field demonstration of yam, the average yield increased from 38475kg/hm2 to 46305kg/hm2, increased 15870 RMB/hm2 than one in CK respectively,and newly added economic benefit in demonstration zone was 2,147 million RMB.