中国花生地膜覆盖栽培经济效益分析及其适宜区域探讨

本文从花生地膜覆盖增产机制着手,结合全国各地气候条件和栽培制度,对各地2—3年花生地膜覆盖栽培对比试验结果进行全面的经济效益分析,以经济效益之高低衡量各地是否适宜采用地膜覆盖栽培技术,从而得出:东北花生区、黄土高原花生区、云贵高原花生区及秦巴山地的中海拔地带为花生覆膜适宜区;黄河流域花生区春花生为临界适宜到适宜、夏花生适宜覆膜区;长江流域花生区为春花生适宜,夏花生不适宜区,东南沿海花生区是春花生临界适宜、夏秋花生不适宜区;海南岛及其他热带区冬花生适宜,其他花生不适宜覆膜;其他地区花生不适宜地膜覆盖。

COST-BENEFIT ANALYSIS ON PEANUT ADOPTING PLASTIC FILM MULCHING AND PRODUCTION ZONES SUITABLE TO MULCHING IN CHINA

The cost-benefit analysis on peanut adopting plastic film mulching and non-mulching in 2-3 year experiments in various places in China was conducted. Based o,n the effects of mulching on peanut growth and yield, the climates and farming systems in China and the economic benefits from mulching practice, the peanut zones suitable or unsuitable for adopting plastic film mulching were determined. Those peanut zones including Northeastern China, Loess Plateau, Yungui Plateau were suitable.In Yellow River Valley, spring-sowing peanut was suitable or marginally suitable for mulching.In Yangtze River Valley, early spring peanut w.as suitable but summer peanut was unsuitable.In Southern China, only spring peanut was marginally suitable. In Hainan, winter peanut was suitable. In the zones or areas not mentioned above, it is unsuitable to grow peanut by mulching.