摘要
本文试图采用层次分析法（AHP）和系统决策对旱地多熟制效益进行综合评价。通过计算亩产值,光能利用率,亩粮食产量的权重分别为:0.21,0.20,0.18,为10个因素中的前三位。因此在选用种植方式时,必须首先考虑这3个因素要获得高值。粮作区试验中,大麦+蚕豆/玉米/甘薯种植方式3因素均为1、2位,效益期望值1987年为30O.75,居二位,1988年为299.3,上升为一位。可初步认为年纯粮区高效益高产量的种植方式,粮菜区试验中,蚕豆+菜/玉米+蕃茄/菜亩产值1987年为1101元,1988年1521.20元,其他几个主要因素均为试验之首,效益期望高达608.59（1987年）,707.8（1988年）是对照的2倍多。这种种植方式也可认为是高效的粮菜兼种的优良方式。
This paper is a trial to evaluate the effect of multiple cropping systems on upland field by analytical hierachy process (AHP) and systematic analysis. The results showed that the production value, utilized coefficient of light energy and yield Per mu were three most important factors in 10 factors, and the weights were 0.21, 0.22, 0.18 respectively, which were the first three ones. So that, at selecting planting form, the value of them would be the highest in this cropping system. The three factors were considered to be the dominant or Partial dominant in the barley+ broadbean + corn+sweet potato system, the exePecting effective valu was 300.75 whice was the partial dominant in 1987, 299. 3 and raisedto dominant in 1988, In the rain crpping plot. It is regarded as cropping system with high effect and yield in the region of sole grain cropping. In the grain-vegetable cropping plot, the value per mu was 1101 yuan in 1987, and 1521.2 yuan in 1988, in the br-oadbean+rutabaga + corn + tomato + sweetpotato + radish system, the expecting effective value was 608.59 in 1987, and 707.8 in 1988, it was double as control plot. So this system is regarded as a best system of grain-vegetable cropping.
出处
《西南农业学报》
CSCD
1990年第1期44-49,共6页
Southwest China Journal of Agricultural Sciences
关键词
种植方式
多熟制
旱地
作物
Food crop, Vegetable Multiple cropping system, Evaluation of composite effect, Analytical hierachy process, Systematic analysis.
