陇东地区青贮玉米的品种比较试验

为了丰富陇东地区饲草资源，引进了10个青贮玉米品种，并以当地普遍种植的1个品种为对照，对这11个品种的农艺性状、产草量和营养成分含量进行了测量，同时对其抗性进行了调查，旨在筛选出在该地区表现良好的青贮玉米品种。结果表明，东单11号、瑞德1号、敦青贮28号持绿时间长，产草量较高，粗蛋白和粗脂肪含量较高，对该地区的气候和土壤环境适应性较好。

Variety Comparative Trial of Silage Maize in Longdong Area

In order to enrich the forage grass resource in Longdong region and to screen the silage maize variety with superior performance in this region, a total of ten varieties of silage maize were introduced. Using a commonly cultivated silage maize variety in this region as control, the agronomic traits, grass yield and nutritional composition contents of the introduced varieties were determined, and the resistance of these varieties was evaluated. The results showed that the varieties of Dongdan No. 11, Ruide No.1 and Dunqingzhu No. 28 had longer hold-green period of blade and higher grass yield, crude protein content and crude fat content, indicating that these varieties had good adaptability to the climate and soil environment of this region.