Agronomic effects of biochar and wastewater irrigation in urban crop production of Tamale, northern Ghana

cg.contributor.crpWater, Land and Ecosystems
cg.coverage.countryGhana
cg.coverage.iso3166-alpha2GH
cg.coverage.regionSub-Saharan Africa
cg.coverage.regionWestern Africa
cg.creator.identifierDrechsel, Pay: 0000-0002-2592-8812
cg.identifier.doihttps://doi.org/10.1007/s10705-018-9926-6en
cg.identifier.wlethemeRural-Urban Linkages
cg.isijournalISI Journalen
cg.issn1385-1314en
cg.issn1573-0867en
cg.issue2019en
cg.journalNutrient Cycling in Agroecosystemsen
cg.reviewStatusPeer Reviewen
cg.subject.wleAGRICULTURAL PRODUCTIONen
cg.subject.wleHEALTHen
cg.subject.wleIRRIGATIONen
cg.subject.wleRECOVERING AND REUSING RESOURCESen
cg.subject.wleWASTEWATERen
cg.volume247en
dc.contributor.authorAkoto-Danso, Edmund K.en
dc.contributor.authorManka’abusi, D.en
dc.contributor.authorSteiner, C.en
dc.contributor.authorWerner, S.en
dc.contributor.authorHäring, V.en
dc.contributor.authorNyarko, G.en
dc.contributor.authorMarschner, B.en
dc.contributor.authorDrechsel, Payen
dc.contributor.authorBuerkert, Andreasen
dc.date.accessioned2020-07-09T08:50:03Zen
dc.date.available2020-07-09T08:50:03Zen
dc.identifier.urihttps://hdl.handle.net/10568/108724
dc.titleAgronomic effects of biochar and wastewater irrigation in urban crop production of Tamale, northern Ghanaen
dcterms.abstractAgricultural production needs to increase, particularly in sub-Saharan Africa, many rural people are undernourished, and the urban population is growing rapidly. It is worrisome that on many West African soils with low cation exchange capacity and soil organic carbon content, mineral fertilization is rather inefficient. Under these conditions, wherever available untreated wastewater is used for irrigation despite the potential health risks to producers and consumers. For intensively cultivated soils with high mineralization rates, biochar application has been advocated as a promising management option. However, the agronomic benefits of wastewater reuse in agriculture and its interaction with biochar have received only limited attention. This study therefore investigated the effects of mineral fertilizer application and biochar amendment at two water quality and quantity levels on soil moisture, plant nutrition and biomass production on a Petroplinthic Cambisol over 2 years. Rice husk biochar applied at 20 t ha−1 significantly increased fresh matter yields in the first five cropping cycles by 15%, and by 9% by the end of 2 years. Compared with clean water, wastewater irrigation increased yields 10–20-fold on unfertilized plots during the dry seasons, while a fourfold increment was observed in the wet seasons. This seasonal difference is likely a result of the high sequence of irrigation events during the dry season. In this study, fertigation with wastewater contributed significantly to plant nutrition and nutrient recovery while yield-increasing biochar effects disappeared over time. Soil moisture was enhanced by up to 9% due to biochar amendments under unfertilized conditions.en
dcterms.accessRightsLimited Access
dcterms.bibliographicCitationAkoto-Danso, E. K.; Manka’abusi, D.; Steiner, C.; Werner, S.; Häring, V.; Nyarko, G.; Marschner, B.; Drechsel, P.; Buerkert, A. 2018. Agronomic effects of biochar and wastewater irrigation in urban crop production of Tamale, northern Ghana. Nutrient Cycling in Agroecosystems. 115:231–247(2019)en
dcterms.extentp. 231-247en
dcterms.issued2018-06-05
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.publisherSpringer Science and Business Media LLCen
dcterms.subjectcrop productionen
dcterms.typeJournal Article

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