青海东部农区6个 饲用玉米品种生产性能的比较

摘要：为了筛选适合青海东部干旱地区高产饲用玉米品种，选用6个饲用玉米品种采用单因素随机排列，3次重复，进行了各品种间生产性能和种植效益比较研究。试验结果表明：豫青贮23株高达到288.62cm,显著高于其他试验品种（P＜0. 05)；豫玉22号饲草平均产量达到13.57万kg/hm2，与豫青贮23和甘玉23饲草平均产量间差异不显著( P＞0. 05)，与铁研53号、陇单6号和中原单32号差异显著（P＜0. 05)；豫玉22号盈利达到1.6万元/hm2,较豫青贮23和甘玉23分别高16.79%和18.52%，较铁研53和中原单32号分别高33.33%和52.38%，较陇单6号高出105.13%。从综合表现来看豫玉22号、豫青贮23和甘玉23号三个饲用玉米品种在青海东部干旱地区具有高产性能和较高的经济效益，值得大力推广种植。

Comparison of production performance of six Forage Maize Varieties in the eastern agricultural area of Qinghai

in order to screen the high-yield forage maize varieties suitable for the arid area of Eastern Qinghai, six forage maize varieties were selected, arranged randomly by single factor and repeated for 3 times. The results showed that the height of 23 silage plants in Henan reached 288.62cm, which was significantly higher than that of other experimental varieties (P < 0.05); The average forage yield of Yuyu 22 was 135700 kg / hm2, which was not significantly different from that of yusilage 23 and Ganyu 23 (P > 0.05), but significantly different from that of Tieyan 53, Longdan 6 and Zhongyuan Dan 32 (P < 0.05); The profit of Yuyu 22 reached 16000 yuan / hm2, 16.79% and 18.52% higher than yusilage 23 and Ganyu 23, 33.33% and 52.38% higher than Tieyan 53 and Zhongyuan Dan 32, and 105.13% higher than Longdan 6. From the comprehensive performance, Yuyu 22, yusilage 23 and Ganyu 23 have high yield and high economic benefits in the arid area of Eastern Qinghai, which is worthy of being popularized.