The economic and comprehensive valuation of the 4 kinds of three-dimensional planting patterns in mulberry field was analyzed and compared. The results showed that the economic evaluation of intercropping ginger was better than the other 3 kinds of intercropping, tomato, com and batata. The output of intercropping ginger was 91 539 RMB/hm2, the land productivity was 135 289 RMB/hm2, and the effective energy VCR was 3.6=1.0. The intercropping of corn was harmful to mulberry as the yearly production of mulberry leaves was only 14 000 kg/hm2. The yearly mulberry production of intercropping ginger was 17 500 kg/hm2, which was the highest in the 4 patterns. The evaluating results of the 4 mulberry planting patterns showed that the economic effectiveness was mulberry/ginger > mulberry/tomato> mulberry/batata > mulberry/com.%分析比较了4种桑园立体种植模式的经济效益,并对4种模式进行了综合评价.结果表明,在西红柿、生姜、玉米、甘薯4种套种作物中,套种生姜的经济效益最优,单位耕地面积作物产值达91 539元/hm2,土地生产率这135 289元/hm2,有效能量产投比达3.6:1.0.套种玉米对桑叶产量有不良影响,桑园全年产叶量仅为14 000 kg/hm2;套种生姜的桑园全年产叶量最高,为17 500 kg/hm2.不同桑园立体种 植模式总体评价结果是桑树/生姜＞桑树/西红柿＞桑树/甘薯＞桑树/玉米.
展开▼
