摘要
试验研究了5种密度种植中的宁禾0709植株和不同收获时间青贮产量性状的变化。结果表明:不同种植密度对青贮玉米宁禾0709的株高、穗位高和不同收获时间干物质含量的影响较小,而对玉米茎粗、倒伏倒折株率及3个青贮收获时间生物产量和干物质产量的影响很大;初步确定了青贮玉米宁禾0709在宁夏引黄灌区的适宜种植密度为7.50万株/hm2左右,适宜收获时间为9月上中旬。
Ninghe 0709 planted in 5 planting densities and changes of silage production and character in different periods were studied in this paper. It was proved that different planting density had great impacts on silage maize Ninghe 0709＇s stem diameter, stalk lodging and breaking rate and biomass and dry matter yield in 3 different silage harvest periods, instead of height, ear height and dry matter yield in different harvest periods. It was determined preliminarily that the suitable planting density for Ninghe 0709 in Yellow River Irrigation Area of Ningxia was 75 000 plants/hm2, and the first and second ten days of September was the suitable harvest period.
出处
《宁夏农林科技》
2015年第12期1-3,8,共4页
Journal of Ningxia Agriculture and Forestry Science and Technology
基金
宁夏科技支撑计划项目(2012ZYN085)
宁夏农林科学院自主研发项目
宁夏重大科技攻关与示范项目--"玉米新杂交种选育及示范"
