Sokoine University of Agriculture

Effectiveness of mulching under miraba in controlling soil erosion, fertility restoration and crop yield in the Usambara mountains, Tanzania

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dc.contributor.author Mwango, Sibaway Bakari
dc.contributor.author Msanya, B. M.
dc.contributor.author Mtakwa, Peter W.
dc.contributor.author Kimaro, D. N.
dc.contributor.author Deckers, Jozef
dc.contributor.author Poesen, Jean
dc.date.accessioned 2016-11-09T12:03:35Z
dc.date.available 2016-11-09T12:03:35Z
dc.date.issued 2014-09-23
dc.identifier.citation DOI: 10.1002/ldr.2332 en_US
dc.identifier.uri http://www.suaire.sua.ac.tz/handle/123456789/883
dc.description.abstract Soil erosion is a major threat to food security in rural areas of Africa. Field experiments were conducted from 2011 to 2014 in Majulai and Migambo villages with contrasting climatic conditions in Usambara Mountains, Tanzania. The aim was to investigate the effectiveness of mulching in reducing soil erosion and restoring soil fertility for productivity of maize (Zea mays) and beans (Phaseolus vulgaris) under miraba, a unique indigenous soil conservation measure in the area. Soil loss was significantly higher (p < 0·05) under miraba sole than under miraba with mulching, for example, 35 versus 20 and 13 versus 8 Mg ha 1 y 1 for Majulai and Migambo villages, respectively, in 2012. Soil fertility status was significantly higher (p < 0·05) under miraba with Tughutu mulching than under miraba sole, for example, 0·35 versus 0·25% total N, 37 versus 22 mg kg 1 P and 0·6 versus 0·2 cmol(+) kg 1 K for the Majulai village; and 0·46 versus 0·38 total N, 17·2 versus 10·2 mg kg 1 P and 0·50 versus 0·2 cmol(+) kg 1 K for the Migambo village. Maize and bean yields (Mg ha 1 ) were significantly higher (p < 0·05) under miraba with Tughutu mulching than under miraba sole, 2·0 versus 1·3 for maize and 0·9 versus 0·8 for beans in Majulai; and 3·8 versus 2·6 for maize and 1·0 versus 0·8 for beans in the Migambo village in 2012. This implies that Tughutu mulching is more effective in improving crop yield than Tithonia, although both could potentially protect the arable land from degradation caused by water erosion under miraba. Copyright © 2014 John Wiley & Sons, Ltd. en_US
dc.language.iso en en_US
dc.publisher Wiley Online Library en_US
dc.subject SWC practices en_US
dc.subject runoff experiments en_US
dc.subject Tithonia en_US
dc.subject Tughutu en_US
dc.subject maize en_US
dc.subject beans en_US
dc.title Effectiveness of mulching under miraba in controlling soil erosion, fertility restoration and crop yield in the Usambara mountains, Tanzania en_US
dc.type Article en_US
dc.url DOI: 10.1002/ldr.2332 en_US


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