Land use and management effects on volcanic soils in West Sumatra, Indonesia

Abe, 2018, Soil micronutrient availability as affected by land use and management in a tropical volcanic mountain area of West Sumatra, Indonesia, Trop. Agric. Dev., 62, 136 Agriculture, Forestry and Fisheries Research Council Secretariat, 1967 Agriculture, Forestry and Fisheries Research Council Secretariat, 1970 Azeez, 2012, Dynamics of soil pH and electrical conductivity with the application of three animal manures, Commun. Soil Sci. Plant Anal., 43, 865, 10.1080/00103624.2012.653022 Carter, 2007 Chamberlain, 2001 Cong, 2005, Improving phosphorus availability in two upland soils of Vietnam using Tithonia diversifolia H, Plant Soil, 269, 11, 10.1007/s11104-004-1791-1 Dahlgen, 2004, The nature, properties and management of volcanic ash soils, Adv. Agron., 82, 113, 10.1016/S0065-2113(03)82003-5 David, 2017, Organic agriculture in Indonesia: challenges and opportunities, Org. Agric., 7, 329, 10.1007/s13165-016-0160-8 del Marmol, 2010 Fiantis, 1998, Mineralogical and charge properties of volcanic ash soils from West Sumatra, Indonesia, Malays. J. Soil Sci., 2, 45 Fiantis, 2017, Geochemical fingerprinting of volcanic soils used for wetland rice in west Sumatra, Indonesia, Indonesia Geoderma Reg., 10, 48, 10.1016/j.geodrs.2017.04.004 Hiradate, 2014, Pedogenesis and properties of volcanic ash soils in Sanbe area, Shimane, Japan, Pedologist, 58, 93 Hubert, 2005, ROBPCA: a new approach to robust principal components analysis, Technometrics, 47, 64, 10.1198/004017004000000563 IITA, 1979 Ikerra, 2006, Combining Tithonia diversifolia and minjingu phosphate rock for improvement of P availability and maize grain yields on a chromic acrisol in Morogoro, Tanzania, Tanzania Nutr. Cycling Agroecosyst., 76, 249, 10.1007/s10705-006-9007-0 Ito, 2004, 132 IUSS Working Group WRB, 2015 Jahroh, 2010, Organic farming development in Indonesia: Lessons learned from organic farming in West Java and North Sumatra Jama, 2000, Tithonia diversifolia as a green manure for soil fertility improvement in western Kenya: a review, Agrofor. Syst., 49, 201, 10.1023/A:1006339025728 Japanese Society of Soil Science and Plant Nutrition, 1997 Mizota, 1989 Moeskops, 2010, Soil microbial communities and activities under intensive organic and conventional vegetable farming in West Java, Indonesia, Indonesia Appl. Soil. Ecol., 45, 112, 10.1016/j.apsoil.2010.03.005 Moeskops, 2012, Soil quality indicators for intensive vegetable production systems in Java, Indonesia, Indonesia Ecol. Indic., 18, 218, 10.1016/j.ecolind.2011.11.011 Obara, 2015, Outline of the Comprehensive Soil Classification System of Japan — first approximation, Jpn Agric. Res. Q., 49, 217, 10.6090/jarq.49.217 Pansombat, 1997, Microbial ecology in tea soils. I. Soil properties and microbial populations, J. Soil Sci. Plant Nutr., 43, 317, 10.1080/00380768.1997.10414756 Parfitt, 1985 Rerkasem, 2005, Transforming subsistence cropping in Asia, Plant Prod. Sci., 8, 275, 10.1626/pps.8.275 Saigusa, 1980, Plant root growth in acid Andosols from northern Japan: 2. Exchange acidity Y1 as a realistic measure of aluminum toxicity potential, Soil Sci., 130, 242, 10.1097/00010694-198011000-00003 Shoji, 1980, Plant root growth in acid Andosols from northern Japan: 1. Soil properties and root growth of burdock, barley, and orchard grass, Soil Sci., 130, 124, 10.1097/00010694-198009000-00003 Shoji, 1993 Sleutel, 2009, Patterns of dissolved organic carbon and nitrogen fluxes in deciduous and coniferous forests under historic high nitrogen deposition, Biogeosciences, 6, 2743, 10.5194/bg-6-2743-2009 Ståhl, 2002, Effects of planted tree fallows on soil nitrogen dynamics, above-ground and root biomass, N2-fixation and subsequent maize crop productivity in Kenya, Plant Soil, 243, 103, 10.1023/A:1019937408919 Todorov, 2009, An object oriented framework for robust multivariate analysis, J. Stat. Softw., 32, 1, 10.18637/jss.v032.i03 van Reeuwijk, 2002 Wada, 1986, The distinctive properties of Andosols, Adv. Soil Sci., 2, 173