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当前位置: 首页 > 文章 > 青贮玉米种植密度及与秣食豆混播比例对青贮品质的影响 草地学报 2017,25 (1) 178-183
Position: Home > Articles > Effects of Planting Densities and Mixed Sowing Ratios of Silage Corn and Fodder Soybean on Silage Quality Acta Agrestia Sinica 2017,25 (1) 178-183

青贮玉米种植密度及与秣食豆混播比例对青贮品质的影响

作  者：
连露;胡国富;李冰;崔国文;冀国旭;阎南南
单  位：
东北农业大学动物科学技术学院
关键词：
青贮玉米;秣食豆;混播比例;种植密度;青贮品质
摘  要：
在3个青贮玉米(Zea mays)种植密度(5.4,6.2,7.95万株·hm~(-2))基础上,分别按株数1∶1,1∶2,1∶3三个比例与秣食豆(Glycine max(L.)Merr)混播,以单播为对照,探究青贮玉米种植密度及与秣食豆混播比例对青贮品质的影响。结果表明:青贮玉米种植密度为6.2万株·hm~(-2),混播比例为1∶1时氨态氮含量最低,为5.42%。随青贮玉米种植密度的增加,淀粉含量呈降低趋势;在同一种植密度下,随秣食豆混播比例增加,粗蛋白质含量呈增加趋势,其中6.2万株·hm~(-2)混播比例为1∶3时粗蛋白质含量最高,达到8.09%,比同一种植密度单播提高19.67%。种植密度为7.95万株·hm~(-2)混播比例为1∶1时干物质含量最高,达到了28.71%。采用灰色关联度法综合比较,种植密度为7.95万株·hm~(-2)混播比例为1∶1的处理得分最高,综合青贮品质最佳;其次是种植密度6.2万株·hm~(-2)混播比例为1∶2的处理。
译  名：
Effects of Planting Densities and Mixed Sowing Ratios of Silage Corn and Fodder Soybean on Silage Quality
作  者：
LIAN Lu;HU Guo-fu;LI Bing;CUI Guo-wen;JI Guo-xu;YAN Nan-nan;College of Animal Science and Technology,Northeast Agriculture University;
关键词：
Silage corn;;Fodder soybean;;Mixed sowing ratio;;Planting density;;Silage quality
摘  要：
The effects of mixed sowing silage corn and fodder soybean on silage quality were investigated.The experiment was designed with three planting densities of silage corn(54 000,62 000,79 500plants·hm~(-2)),with three mixed sowing ratios,which silage corn was mixed with fodder soybean by the number of 1∶1,1∶2 and 1∶3.The single sowing of silage corn was control.The results showed that when the planting density was at 62 000 and mixed sowing ratios was 1∶1,NH3-N content was the lowest.With the increase of planting density,starch content decreased.When the mixed sowing ratios increased under the same silage corn planting density,crude protein content showed a rising trend.When the planting density was 62 000 plants·hm~(-2),mixed sowing ratios was 1∶3,crude protein content was the highest.When the planted density was 79 500plants·hm~(-2),and mixed sowing ratios was 1∶1,dry matter yield was the highest.Grey relevancy analysis was used to compare fermentation quality and nutritional quality.When the planted density was 79 500 plants·hm~(-2) and mixed sowing ratios was 1∶1,silage quality was the best,followed by 62 000 plants·hm~(-2) planting density with mixed sowing ratios of 1∶2.

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