Soil properties as affected by the use of leguminous shrubs for alley cropping with maize |
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| Institution: | 1. Farming Systems Program, IITA, Ibadan Nigeria;2. Soil Fertility Management and Farming Systems, Department of Agronomy, University of Ibadan Nigeria;1. Institute for Forest Resources & Environment of Guizhou, Guizhou University, Guiyang, 550025, PR China;2. Guizhou Provincial Key Laboratory for Environment, Guizhou Normal University, Guiyang, 550001, PR China;3. College of Forestry, Guizhou University, Guiyang, 550025, PR China;4. Puding Karst Ecosystem Research Station of Guizhou Province, Anshun, 561000, PR China;1. National Institute for Health Research, Northern Deanery, Newcastle upon Tyne, UK;2. Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK;3. Musculoskeletal Unit, Newcastle upon Tyne Hospitals National Health Service Foundation Trust, Newcastle upon Tyne, UK;1. Lab2PT – Landscape, Heritage and Territory Laboratory, Unit of Archaeology, University of Minho, Portugal;2. Prehistory Laboratory, CIAS, University of Coimbra, Portugal;3. UNIARQ – WAPS, University of Lisbon Archaeology Center, Portugal;4. Laboratory of Forensic Anthropology, Center for Functional Ecology, University of Coimbra, Portugal;1. Department of Orthopaedics and Spine Surgery, Ganga Hospital, 313, Mettupalayam Road, Coimbatore, India;2. Department of Radiology, Ganga Hospital, 313, Mettupalayam Road, Coimbaotre, India |
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| Abstract: | Alley cropping is a crop production system whereby food crops are planted in spaces created by hedgerows of selected leguminous shrubs. The leguminous shrubs supply nitrogen, organic materials and recycle leached nutrients.This study was elaborated to evaluate the effects of prunings of three leguminous shrubs on some soil properties in an alley cropping system.Soil chemical properties were improved in alley cropped sites. Soils under Cassia had the highest content of N,P,K and organic carbon with values of 0.344%, 45.6 ppm, 0.55 meq/100g and 2.32%, respectively, after the second maize crop. Bulk density, mean aggregate diameters and water holding capacity were better in the alley cropped sites, relative to control. Gravimetric moisture content was generally higher in the alley cropped sites and highest under Cassia. Cassia maintained a relatively high soil biomass C, probably because of its slow rate of decomposition. N fertilizer applied at 90 kg ha−1 promoted soil biomass C, essentially through increased shrub and maize dry matter production. |
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