宁夏引黄灌区植棉可行性分析

通过资料对比分析和试验研究，对宁夏引黄灌区植棉的可行性分析结果表明，宁夏引黄灌区属于植临界区，与新疆北疆、甘肃河西走廊内蒙河套灌区同属我国西北内陆棉共的特早熟干旱棉花次适宜区；宁夏引黄灌区光能资源、灌溉、土壤等农业生产条件对植棉十分有利，但热量资源略显不足，是该地区植棉的限制因素。目前宁夏引黄灌区的植棉技术研究已取得突破性进展，在一定范围内植棉条件已基本成熟。

STUDY ON FEASIBILITY OF GROWING COTTON IN IRRIGATED AREAS OF NINGXIA

Through comparison of the data and test,the feasibility of growing cotton (Gossypium hirsutum L.)in the irrigated area of Ningxia was studied.Results showed that the Ningxia irrigated area should belong to critical zone of growing cotton and this area,as well as northern irrigated area of Xinjiang, Hexi irrigated area of Gansu,Hetao irrigated area of Inner Mongolia,should belong to extremely early ripening subsuitable zone of growing cotton in northwestern of China.Although production condilions (e.g.sun radiation,convenient irrigation and good agricultural soil types etc.)were profitable for cotton growing, the shorter growing period and lower cumulative temperature during growing period of cotton were critical factors of growing cotton.Recently,a key technological breakthrough of growing cotton has been made in this region.Growing cotton in this region will obtain great profit and the cotton production will have a great development.