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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。
The productivity, energy benefit, economic benefit and comprehensive benefit of six different methods were compared. The results showed that the productivity and benefit of different methods were different. Gray correlation analysis showed that the comprehensive benefit of multi-ryegrass-rice multiple cropping was the best, which was worth to popularize. The second was wheat-rice multi-cropping method, and the hybrid ryegrass-hybrid Pennisetum The comprehensive benefit is lower than that of the wheat-rice multiplication method, but a large number of high-quality cold-season and warm-season forages are provided, which is a “grass-grass” multiple-cropping system suitable for the development of animal husbandry in pastoral areas; The comprehensive benefits of the three kinds of double cropping methods of rye-hybrid Pennisetum and rye-rice are relatively poor.