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引入“陕单902”、“登海1号”和“登海3号”不同品种玉米与本区大面积推广的“中单2号”玉米进行对比试验。结果表明,籽实产量以“陕单902”为最高,籽实产量4125kg／hm2;“登海3号”次之,产量为3600kg／hm2;“登海1号”最低,但秸杆产量最高。玉米以52500株／hm2播种密度为适宜。
The comparative experiments were conducted on “Zhongdan No. 2” maize with “Shan Shan 902”, “Denghai 1” and “Denghai 3” of different cultivars and large area popularization in this area. The results showed that the seed yield was the highest in “Shandan 902”, the seed yield was 4125kg / hm2; the second was “Denghai 3”, the yield was 3600kg / hm2; the lowest in “Denghai 1” The highest straw production. 52500 plants / hm2 corn planting density is appropriate.