我国冬闲稻田马铃薯生产的潜力与问题

人口持续增加和耕地持续减少是造成我国粮食安全问题的两个最重要因素。提高作物单产和提高土地利用率是解决这一问题的主要手段。水稻、小麦和玉米等三大主要粮食作物靠这两个手段来增加产量的潜力十分有限。而马铃薯利用冬闲田在增加生产面积和提高单产水平都有巨大的潜力。由于利用冬闲稻田生产马铃薯在销售价格、资源利用、栽培方式和环境保护等方面具有种种优势,近年来其面积和产量都在迅速增加。

Potential and Problems of Potato Production in Winter Fallow Rice Fields in China

The continuous increase of population and the continuous decrease of arable lands are the two most important problems of food safety in China.To increase the yield and the land efficiency is the main solution for the problems.However,the potential of the yield increase for the three major crops,rice,wheat and maize,is very limited.Whereas,there is huge potential to increase the potato production in winter fallow rice fields in terms of the planting area and the yield improvement.Due to the advantages to get the high price,to fully used natural sources,to cultivate conveniently and to be environment-friendly in potato production in winter fallow rice field,the planting area and the production have been increased rapidly in recent years.