泾源县南部湿润区饲料玉米品种比较试验

Comparison of different forage maize varieties in humid area of southern Jingyuan County

为进一步推动泾源县地膜玉米的发展,筛选引进适合泾源县南部湿润区饲料玉米种植品种,经过两年的试验研究,我们对引进的豫青贮23、北农青208、郑青贮1号、金岭377、长城706、桂青贮1号6个品种和当地主栽品种金刚50进行了比较,结果表明:豫青贮23产量最高,为8 662.5 kg/667m2,长城706产量为8 100 kg/667m2,北农青208产量为7 537.5 kg/667m2,且农艺性状表现稳定,可在当地推广应用。

In order to extend the employment of plastic-film in maize culture in Jingyuan County and to screen and introduce the forage maize varieties that are suitable to be cultured in humid area of southern Jingyuan County,the planting experiment were conducted to compare the yield of the introduced varieties of Yuqingzhu NO.23,Beiqingnong NO.208,Zhengqingzhu NO. 1, Jinling NO.377,Changcheng NO.706,Guiqingzhu NO.1 and the local varieties of Jingang NO.50 in two consecutive years. Among the tested varieties,the yield of Yuqingzhu NO.23 was the highest （8 662.5kg/667m 2）,followed by Changcheng NO.706 （8 100kg/667m2） and Beiqingnong NO.208 （7 537.5kg/667m2）,and the agronomic traits of them were stable.It was indicated that the forage maize varieties of Yuqingzhu NO.23,Changcheng NO.706 and Beiqingnong NO.208 were suitable for promotion in Jingyuan County.