半干旱区南果梨秸秆覆盖蓄水保墒技术研究  

Soil Water Conservation Technology of Nanguo Pear Fruit with Covering Straw in Semi-arid Area

作　　者：杨光[1] 孙占祥[1] 冯良山[1] 金桂华[1] 董俊[1] 

机构地区：[1]辽宁省农业科学院,辽宁沈阳110161

出　　处：《辽宁农业科学》2009年第1期53-54,共2页Liaoning Agricultural Sciences

基　　金："十一五"国家科技支撑计划重点项目(2006BAD29B06);农业部948项目(2006-G52A-Q01);辽宁省科技攻关课题(2007212001);公益性行业科研专项经费项目(200803028)

摘　　要：在辽西半干旱区,南果梨树盘覆盖秸秆能够提高土壤含水量和果树产量。随着秸秆覆盖厚度的增加土壤蓄水保墒能力逐渐增强,产量不断提高,但是厚度超过25 cm后,作用效果不再明显增强。在5个水平中,覆盖厚度为30 cm和25 cm与其它三个处理相比,增产显著,但二者之间的差异不显著。因此,南果梨覆盖栽培中适宜的秸秆覆盖厚度为25 cm左右。In semi-arid area of western Liaoning Province, the Nanguo pear fruit can improve production and soil moisture by covering straw. The retention capacity of soil was gathering strength and the fruit production increased, with increase the thickness of straw mulch. But the rate of increase to become less, when the thickness to exceed 25 cm. In the five levels of coverage for the thickness of 30 cm and 25 cm compared with the other treatment, significantly increase production, but the difference was not significant between them. Therefore, the appropriate coverage thickness of straw mulch is around 25 cm in Nanguo pear fruit cultivation.

关 键 词：秸秆覆盖 蓄水保墒 南果梨 半干旱区 

分 类 号：S318[农业科学—作物栽培与耕作技术]