摘要
对宁夏中部干旱带旱地覆膜免耕种植冬小麦的适宜密度和效应进行了研究,结果表明:在同心县东部旱作区冬小麦覆膜免耕种植的适宜密度为46.35万穴/hm2,单株农艺性状表现适中,群体生产效率较高,产量可达2 119.2 kg/hm2;冬小麦覆膜免耕种植与传统露地种植方式相比,可有效改善土壤水、温环境,为作物生长提供适宜的温度和较多的土壤水分供给,尤其是作物生殖生长阶段的土壤水分供应充足,从而达到增产增收效果;与播种期覆膜方式相比,具有减少犁地扰动、增加土壤水分含量、降低生产资料投入而显著增加经济效益的优势,是一种节本增效的作物高效种植模式。
A study of the appropriate planting density of mulch no-tillage winter wheat on dryland in arid area in central Ningxia and its effect was conducted. The results show that the appropriate planting density for mulch no-tillage winter wheat in dry farming area in east part of Tongxin county is 463,500 pit/hm^2 and the performance of single plant agronomic traits was moderate, the production efficiency of the group was relatively higher and the yield reached 2 119.2 kg/hm^2. Compared with the traditional way of field planting the mulch no-tillage winter wheat can effectively improve the water and temperature environment of the soil and provide appropriate temperature and more soil water supply for crop growth, especially sufficient soil water supply during reproductive growth stage of the crop, so the effects of yield and income increase were achieved. Compared with the method of mulching during sowing period it has the advantages of reducing the plough disturbance, increasing soil moisture content, reducing input in means of production and increasing economic benefit signifieandy. It is a cost-reducing and effect-increasing high efficient crop planting patterns.
出处
《宁夏农林科技》
2012年第12期5-8,共4页
Journal of Ningxia Agriculture and Forestry Science and Technology
基金
宁夏回族自治区"十二五"科技攻关项目--中部干旱带旱地一膜多季低碳农业关键技术研究与示范
关键词
覆膜免耕
冬小麦
水氮效应
产量
Mulch no-tillage
Winter wheat
Water and nitrogen effect
Yield
