双垄全膜覆盖沟播栽培条件下海拔1600m玉米品种比较试验

在宁夏彭阳县城阳乡涝池村杨小庄双垄全膜覆盖沟播栽培条件下，对中单5485、登海1号、长城799、五谷704、先玉335、长城706（CK）6个玉米品种进行了品种比较试验，结果表明：先玉355、五谷704为晚熟品种，出籽率高、产量突出、丰产性好，是宁夏南部山区旱塬地秋季全膜覆盖沟播栽培条件下的首选玉米推广品种。

Variety Comparative Test for Maize under Condition of Double Ridge Whole-mulching Furrow Sowing Cultivation

A variety comparative test under the condition of double ridge whole-mulching furrow sowing cultivation for 6 maize varieties, namely Zhongdau 5485, Denghai No 1,Changcheng 799, Wugu 704, Xianyu 335 and Changcheng 706（CK） in Yangzhai village in Wangwa township in Pengyang county in Ningxia. The results showed that the yield of Xianyu 335 was the highest and the yield of Wugu 704 ranked second and the both varieties have the advantages of close grain, more grain number per spike and high yield. They are suitable for popularizing under the condition of double ridge whole-mulching furrow sowing cultivation in Autumn on dryland in Southern Mountainous Area of Ningxia.