Conservation agriculture impact for soil conservation in maize-wheat cropping system in the Indian sub-Himalayas

作     者：B.N.Ghosh Pradeep Dogra N.K.Sharma Ranjan Bhattacharyya P.K.Mishra 

作者机构：ICAR-Indian Institute of Soil and Water Conservation(IISWC)Dehradun 248195India ICAR-Indian Agricultural Research InstituteNew Delhi 110012India 

出 版 物：《International Soil and Water Conservation Research》 (国际水土保持研究（英文）)

年 卷 期：2015年第3卷第2期

页      面：112-118页

学科分类：0710[理学-生物学] 09[农学] 0818[工学-地质资源与地质工程] 0903[农学-农业资源与环境] 0815[工学-水利工程] 0901[农学-作物学] 0833[工学-城乡规划学] 0713[理学-生态学] 0834[工学-风景园林学（可授工学、农学学位）] 

主　　题：Vegetation strips Organic amendments Weed mulch Minimum tillage Soil conservation 

摘      要：Conservation agriculture(CA)is considered as a suitable technique for soil erosion control,productivity enhancement,and improved economic benefits.To investigate these issues,an experiment was conducted under rainfed conditions using grass vegetation strip(VS)with minimum tillage,organic amendments and weed mulch during June 2007-October 2011 at Dehradun,Uttarakhand in the Indian Himalayan region.Results showed that the mean wheat equivalent yield was
47%higher in the plots under with CA compared with conventional agriculture in a maize-wheat crop rotation.Mean runoff coefficients and soil loss with CA plots were
45%less and
54%less than conventional agriculture plots.On average,after the harvest of maize,soil moisture conservation up to 90 cm soil depth for wheat crop was 108%higher under CA than conventional agriculture plots.The net return from the plots with CA was 85%higher,and when expressed net return per tonne of soil loss,it was four and half times higher than conventional practice.Results demonstrate that the suitable CA practice(a grass strip of Palmarosa with applied organic amendments(farmyard manure,vermicompost and poultry manure)along with weed mulching under conservation tillage)enhances system productivity,reduces runoff,soil loss and conserve soil moisture.&2015 International Research and Training Center on Erosion and Sedimentation and China Water and Power Press.Production and Hosting by Elsevier B.V.This is an open access article under the CC BY-NC-ND license(http://***/licenses/by-nc-nd/4.0/).