沈阳地区3种新型复种模式物质生产及资源利用效率分析  

Analysis of matter production and resources use efficiency of three multiple cropping patterns

作　　者：杜桂娟 曹敏建[2] 马凤江 杨姝 

机构地区：[1]辽宁省农科院耕作栽培研究所,辽宁沈阳110161 [2]沈阳农业大学农学院,辽宁沈阳110161

出　　处：《干旱地区农业研究》2012年第6期38-43,133,共7页Agricultural Research in the Arid Areas

基　　金：农业部公益性行业科研专项资金项目(201103001);国家科技支撑计划项目(2012BAD09B00)

摘　　要：为探索适合沈阳地区的复种模式,采用灰色关联分析法,对三种新型种植模式(M1:覆膜鲜食玉米复种青贮玉米;M2:小麦复种青贮玉米;M3:马铃薯复种青贮玉米)的物质生产及资源利用效率等进行了分析评价。结果表明:三种复种模式的作物生产力、气候资源生产效率、能量效益、经济效益、综合效益等均明显高于一季春玉米(CK)。其中,马铃薯复种青贮玉米纯效益最高,为25 462元/hm2,较一季春玉米提高136%;覆膜鲜食玉米复种青贮玉米和小麦复种青贮玉米纯效益分别为22 993元/hm2和14 216元/hm2,较一季春玉米分别提高113%和32%。To find a suitable multiple cropping pattern for Shenyang area, matter production and resources use efficiency of three multiple cropping patterns was analyzed by the grey correlation analysis method. The results showed that the crop productivity, climate production efficiency, energy benefit, economic benefit and comprehensive benefit of the three multiple cropping patterns were obviously bigger than those of single spring maize system. The pure benefit of pota-to-silage corn was 25 462 Yuan/hm2, which was 136% higher than that of single spring maize system; And the pure benefits of fresh food corn-silage corn and wheat-silage com were respectively 22 993 Yuan/hm2 and 14 216 Yuan/hm2, which were respectively 113 % and 32% higher than that of single spring maize system.

关 键 词：复种模式 物质生产 资源利用效率 

分 类 号：S344.3[农业科学—作物栽培与耕作技术]