山西省三种饲草作物种植模式的效益分析

Benefit Analysis of Three Forage Crops Planting Patterns in Shanxi Province

为分析山西省玉米(Zea may)连作(CC)、玉米+苜蓿(Medicago sativa)+燕麦(Avena sativa)轮作(C-A-O)和玉米+小黑麦(Secale sylvestre)轮作(C-T)3种种植模式的经济效益和营养品质,在山西省不同地区进行了实地调研,对轮作过程进行全程监测并分析农作物的营养品质。结果表明,C-T一年平均经济效益最高,CC次之,C-A-O最低。但在3种不同种植模式下C-A-O的营养品质显著高于其余2种种植模式(P<0.01),CC连作最低。综合来看,C-A-O综合效益较高,C-T综合效益次之,CC综合效益最低。

In order to analyze the economic benefits and nutritional quality of three different plantings modes of corn(Zea may)continuous cropping(CC),corn+alfalfa(Medicago sativa)+oat(Avena sativa)Rotations(C-A-O)and corn+triticale(Secale sylvestre)rotations(C-T)in Shanxi Province,rotation research was conducted in different regions of Shanxi Province and the entire rotation process was investigated.The results showed that the average annual economic benefit of C-T was the highest;Followed by CC,and C-A-O was the lowest.However,among the three different cropping patterns,the nutritional quality of the C-A-O was significantly higher than that of other two cropping patterns(P﹤0.01),and the CC was the lowest.In all,the comprehensive benefit of the C-A-O was the highest,followed by the C-T,and the comprehensive benefit of the CC was the lowest.