干旱区生态环境知识资源中心(Arid): 辽西北半干旱区垄膜沟种处理对土壤钾吸附/解吸特性的影响

Arid

	辽西北半干旱区垄膜沟种处理对土壤钾吸附/解吸特性的影响
其他题名	Effect of ridge with film mulching and furrowed seeding systems on soil K sorption-desorption characteristics in semi-arid region of northwest Liaoning province
	冯晨 1; 孙占祥 1; 冯良山 1; 王鹏飞 1; 于秀捷 2; 郑家明 1
来源期刊	中国土壤与肥料
ISSN	1673-6257
出版年	2016
期号	2 页码:45-49
中文摘要	为探明不同垄膜沟种处理(垄覆膜沟不覆盖T1和垄覆膜沟覆膜T2)对土壤钾吸附/解吸特性的影响,以农业部阜新农业环境与耕地保育科学观测实验站为平台,通过定位7年的田间试验(2007~2013年),以传统种植(T0)为对照,结合实验室内批量平衡法,对长期垄膜沟种条件下根际土壤对重要养分钾的吸附/解吸能力进行研究和分析。结果表明:垄膜沟种处理有助于降低土壤对钾素养分的吸附,通过拟合Langmuir方程和Freundlich方程所求得的最大缓冲容量(MBC)和Kf值等相关参数可知,垄覆膜沟不覆盖种植处理下土壤对钾的吸附容量和吸附强度最小,最有利于削弱土壤对钾的吸附作用,减少钾的固定,各处理MBC值表现为T1(6.62)T1(47.48)>T0(42.51),平均滞后系数表现为T0(0.57)>T1(0.53)>T2(0.51)。其中垄覆膜沟覆膜处理的解吸率和滞后系数总体表现为最大和最小,说明该处理土壤所吸附的钾最容易被释放。
英文摘要	To clarify soil K adsorption-desorption characteristics in different treatments of ridge with film mulching and furrowed seeding system in semiarid area in Liaoning,a field study was conducted from 2007 to 2013 at Fuxin Science Observation Research Stations of Agricultural Environment and Cultivated Land Conservation,including the treatments of ridge with film mulching and furrow seeding(furrow was uncovered,T1),both ridge and furrow with film mulching(T2),and the traditional planting(T0).Laboratory experiment was combined to analyze the effects of ridge with film mulching and furrowed seeding system on soil K adsorption-desorption.The results indicated that T1 and T2 restrained the soil K adsorption according to the Langmuir and Freundlich equation parameters such as MBC and Kf,compared with that of T0.The buffer capacity and intensity of K sorption in T1 treatment was the minimum among all the treatments.And the MBC value were:T1(6.62)T1(47.48)>T0(42.51),hysteresis coefficient was T0(0.57)>T1(0.53)>T2(0.51).Soil K in T2 was most easily to be released.
中文关键词	垄膜沟种 ; 钾 ; 吸附特征 ; 解吸特征
英文关键词	ridge with film mulching and furrowed seeding K adsorption characteristic desorption characteristic
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5691513
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/235515
作者单位	1.辽宁省农业科学院耕作栽培研究所, 沈阳, 辽宁 110161, 中国; 2.辽宁省气象信息中心, 沈阳, 辽宁 110016, 中国
推荐引用方式 GB/T 7714	冯晨,孙占祥,冯良山,等. 辽西北半干旱区垄膜沟种处理对土壤钾吸附/解吸特性的影响[J],2016(2):45-49.
APA	冯晨,孙占祥,冯良山,王鹏飞,于秀捷,&郑家明.(2016).辽西北半干旱区垄膜沟种处理对土壤钾吸附/解吸特性的影响.中国土壤与肥料(2),45-49.
MLA	冯晨,et al."辽西北半干旱区垄膜沟种处理对土壤钾吸附/解吸特性的影响".中国土壤与肥料 .2(2016):45-49.