摘要
新疆阿克苏地区是中国重要的产棉基地,探究人为可控的物化投入对提高棉花产量的影响有着重要意义。以阿克苏市和库车县作为研究对象,利用两地1988—2009年的棉花产量和物化投入资料进行统计分析;阿克苏地区的棉花单产和物化投入(单位面积化肥施用量、单位面积农业机械总动力、单位面积农村用电量)均呈逐年增加趋势,但近年物化投入的边际棉花产量开始下降;该地区综合物化投入指数每增加1%,棉花单产增加约5.4～5.5 kg/hm2。现应科学合理地分配物化投入量,适当调整投入比例,以促进阿克苏地区的棉花产业得到进一步的发展。
The Aksu District,Xinjiang was an important cotton region in China. It was important to study the impacts of controllable materialized inputs on cotton yield. Based on the statistical data of cotton production from 1988 to 2009 in Aksu City and Kuqa County,the influence of materialized inputs on cotton yield in Aksu District of Xinjiang were analyzed through mathematic statistic method. The cotton yield and materialized inputs（fertilizer application amounts per unit planting area,gross agricultural machinery power per unit planting area,rural electric power per unit planting area） increased year by year,but the marginal cotton yield had been reduced in recent years with the increased amount of materialized inputs. When materialized index increased by 1%,the cotton yield increased by 5.4-5.5 kg/hm2. Nowadays,it was imperative to distribute scientific and reasonable materialized inputs and adjust the investment proportion for the further development of cotton industry in Aksu District.
出处
《中国农学通报》
CSCD
2013年第33期177-182,共6页
Chinese Agricultural Science Bulletin
基金
公益性行业(气象)科研专项经费项目"中国主要农作物产量动态预报技术方法研究"(GYHY201206022)
国家自然科学基金项目"基于形态可视化模型的棉花冷害精细化诊断系统研究"(30971686)
关键词
棉花单产
化肥施用量
农业机械总动力
农村用电量
物化投入指数
cotton yield
fertilizer application amounts
gross agricultural machinery power
rural electric power
materialized inputs index
