Effects of Long-Term Winter Planted Green Manure on Physical Properties of Reddish Paddy Soil Under a Double-Rice Cropping System

查看全文 作　　者：YANG Zeng-[1,3]ping;XU Ming-[2]gang;ZHENG Sheng-[1]xian;NIE [1]Jun;GAO Ju-[2]sheng;LIAO Yu-[1]lin;XIE [1]Jian

机构地区：[1]Soil and Fertilizer Institute of Hunan Province, Changsha 410125, P.R. China;[2]Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R. China;[3]College of Resources and Environment, Hunan Agricultural University, Changsha 410128, P.R.China

出　　处：《Journal of Integrative Agriculture》索引2012年第11卷第4期,共10页

基　　金：supported by Special Fund for Agro-scientific Research in the Public Interest(201103005);Ministry of Agriculture,China and the International Plant Nutrition Institute(IPNI,Hunan-14) 摘　　要：Soil physical properties are important indicators of the potential for agricultural production.Our objective was to evaluate the effects of long-term inputs of green manures on physical properties of a reddish paddy soil(Fe-Typic Hapli-Stagnic Anthrosols) under a double cropping system.The common cropping pattern before the study was early-late rice-fallow(winter).The field treatments included rice-rice-fallow(R-R-WF),rice-rice-rape(R-R-RP),rice-rice-Chinese milk vetch(RR-MV),and rice-rice-ryegrass(R-R-RG).The rape,Chinese milk vetch and ryegrass were all incorporated as green manures 15 d before early rice transplanting during the following year.The soil bulk density in all green manure treatments was significantly reduced compared with the winter fallow treatment.Soil porosity with green manure applications was significantly higher than that under the winter fallow.The green manure treatments had higher 0.25-5 mm water stable aggregates and aggregates stabilities in the plow layer(0-15 cm depth) compared with the fallow treatment.The mean weight diameter(MWD) and normalized mean weight diameter(NMWD) of aggregates in the green manure treatment were larger than that with the winter fallow.Soil given green manure retained both a higher water holding capacity in the plow layer soil,and a larger volume of moisture at all matric potentials(-10,-33 and-100 kPa).We conclude that the management of double-rice fields in southern central China should be encouraged to use green manures along with chemical fertilizers to increase SOC content,improve soil physical properties and soil fertility. 关键词：土的物理性质水稻土种植制度绿肥土壤物理性质红壤性有机碳含量冬季

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Effects of Long-Term Winter Planted Green Manure on Physical Properties of Reddish Paddy Soil Under a Double-Rice Cropping System

参考文献(34)

引证文献(44)

耦合文献(1370)

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