江苏中南部地区麦玉米稻新三熟制的生态与经济适应性分析

本文根据田间试验和生产调查结果，对麦玉米稻三熟制在苏中南地区的生态经济和社会条件适应性进行了系统的分析，结果表明，新三熟制在该地区的温度、降水和土壤生态适应程度都较高，亩产量比两熟提高24％左右，经济收益也同步提高。从社会需求性和劳动力负担来看，发展新三熟制也是可行的。

The Ecological and Economical Adaptability of Wheat-Corn-Rice Triple Cropping System in the Region of Middle and Southern Jiangsu Province

The ecological and economical adaptability of wheat- corn- rice triple cropping system in southern and middle Jiangsu province was studied with the field experiments and production investigation. The result showed that this triple cropping system had high adaptability to the local temperature,rainfall and soil condition, the yield was about 24 % higher than wheat- rice double cropping system,the economic reward was also increased. Considering social requirement and farming labourer bearing aspects, we believe it is also feasible to develop a certain part of such triple cropping system.