玉米与生姜间作复种系统增产增效分析

目的]为推广复种系统提供依据。方法]以玉米(兴黄单999)和生姜(当地种)为试材,设4种间作处理,带宽分别为1.67(CK)、2.33、2.67和3.00m,研究了不同带宽间作方式的玉米和生姜的产量和产值。结果]不同带宽间作处理方式对2种作物产量的影响不同。2.33、2.67和3.00m带宽处理的玉米产量分别比对照的降低22.21%、20.66%和27.72%;3.00m处理的生姜产量最高,为21750.0kg/hm2;2.33m带宽处理的最低,为19927.5kg/hm2。玉米生姜间作时,2.33、2.67和3.00m带宽处理的2种作物的产值分别为31404.30、32450.40和32413.20元/hm2,分别比对照(14752.80元/hm2)增加了112.87%、119.96%和119.71%,2种作物的纯收入分别比对照增加了138.87%、138.94%和132.40%。结论]2.67m带宽处理是玉米和生姜间作的最佳复种模式。

Analysis of Yield and Effect Increase on System of Intercropping and Multiple Cropping of Maize Intercropping with Ginger

Objective] The study was to provide a base for the generalization of multiple cropping system. Method] With maize (Xinghuangdan 999) and ginger (Endemic variety) as tested materials, 4 kinds of the intercropping treatments were set up with bandwidth of 1.67(CK),2.33, 2.67 and 3.00 m. The yield and production value of maize and ginger in intercropping with different bandwidth were studied. Result] Intercropping treatments with different bandwidth had an influence on the yields of two crops differently. The maize yields in the treatments with bandwidth of 2.33, 2.67 and 3.00 m were decreased by 22.21%, 20.66% and 27.72% than that of CK resp.;the ginger yield of 3.00 m bandwidth treatment was highest (21 750.0 kg/hm2) and that of 2.33 m bandwidth treatment was lowest (19 927.5 kg/ hm2). In intercropping maize with ginger, the production values of 2 crops of 2.33, 2.67 and 3.00 m bandwidth treatment were 31 404.30, 32 450.40 and 32 413.20 yuan/hm2 resp. and were increased by 112.87%, 119.96% and 119.71% resp. than that of CK(14 752.80 yuan/hm2)and their net income of 2 crops in 2.33, 2.67 and 3.00 m bandwidth treatment were increased by 138.87%, 138.94% and 132.40% than that of CK resp.. Conclusion] 2.67 m bandwidth treatment was the best multiple cropping mode for maize intercropping with ginger.