摘要
对6种不同复种方式的生产力、能量效益、经济效益和综合效益进行了比较研究,结果表明:不同复种方式生产力和效益不同。灰色关联分析显示,多花黑麦草-水稻复种方式的综合效益最好,是值得推广的高效农牧结合型复种方式;其次为小麦—水稻复种方式,花黑麦草—杂交狼尾草复种方式的综合效益较小麦—水稻复种方式的稍差,但提供了大量的优质冷季型和暖季型牧草,是适合牧区畜牧业发展的“草—草”型复种方式;小麦—杂交狼尾草、黑麦-杂交狼尾草和黑麦-水稻3种复种方式的综合效益相对较差。
Gray relation analysis was made of six multiple cropping systems involving forage and/or grain crops to compare their productivity, energy efficiency, economic efficiency and comprehensive benefits. The cropping pattern of annual ryegrass-rice gave the best comprehensive benefit and is, therefore, recommended as a highly efficient cropping pattern for the integration of farming with animal husbandry. The cropping system of wheat-rice was next oldy to ryegrass-rice in comprehensive benefit, followed closely by the pattern of annual ryegrass-P. P.. The comprehensive benefits of the cropping patterns wheat - P. P. , rye-P. P. and rye-rice were not satisfactory.
出处
《西南农业大学学报（自然科学版）》
CSCD
北大核心
2006年第6期917-921,共5页
Journal of Southwest Agricultural University
基金
国家科技部"十五"攻关资助项目(2004BA520A14)
江苏省国际科技合作计划资助项目(BZ2001038)
关键词
复种方式
生产力
效益
灰色关联分析法
multiple cropping system
productivity
efficiency
gray relation analysis
