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        <dc:title>Effect of soil fertility management strategies and resource-endowment on spatial soil fertility gradients, plant nutrient uptake and maize growth at two smallholder areas, north-western Zimbabwe</dc:title>
        <dc:creator>Nyamangara, J</dc:creator>
        <dc:creator>Makarimay, E</dc:creator>
        <dc:creator>Masvaya, E N</dc:creator>
        <dc:creator>Zingore, S</dc:creator>
        <dc:creator>Delve, R J</dc:creator>
        <dc:subject>Soil Science</dc:subject>
        <dc:description>We investigate the effects of smallholder farmer resource-endowment and soil nutrient management strategies&#13;
on plant nutrient uptake and growth across soil fertility gradients under semi-arid conditions. Soil fertility gradients&#13;
as influenced by farmers’ resource availability may affect the response of crops to fertilizer addition and&#13;
therefore productivity. The study was conducted in Njelele and Nemangwe smallholder areas (450-800 mm per&#13;
annum, unimodal) in north-western Zimbabwe. Soil and maize cobleaf samples were collected from fields of&#13;
farmers (varying resource endowment) located near to (homefields) and far away (outfields) from the farmers’&#13;
homesteads during the 2005-6 season. The samples were analysed for selected soil fertility indicators and soil&#13;
samples were further used to test maize growth response to various nutrient applications under greenhouse&#13;
conditions. Soil fertility (organic C, total N and available P) significantly (P&lt;0.05) decreased from resourceendowed&#13;
to resource-constrained farmers, and from outfields to homefields, but the latter differences were only&#13;
significant for available P. Besides resource-endowment and field type, response to nutrient applications also&#13;
depended on soil texture. In sandy soil, both N and P were limiting to MAIZE growth in outfields while N was&#13;
most limiting in the homefield. It was concluded that resource-endowment and nutrient resource management&#13;
strategies employed by farmers result in soil fertility gradients which affect response of crops to fertilisation and therefore need to be factored in the development of fertiliser recommendations.</dc:description>
        <dc:publisher>Sabinet</dc:publisher>
        <dc:date>2011</dc:date>
        <dc:type>Article</dc:type>
        <dc:type>PeerReviewed</dc:type>
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        <dc:language>en</dc:language>
        <dc:identifier>http://oar.icrisat.org/4781/1/SAfrJPlantSoil28_1_2011.pdf</dc:identifier>
        <dc:identifier>  Nyamangara, J and Makarimay, E and Masvaya, E N and Zingore, S and Delve, R J  (2011) Effect of soil fertility management strategies and resource-endowment on spatial soil fertility gradients, plant nutrient uptake and maize growth at two smallholder areas, north-western Zimbabwe.  South African Journal of Plant and Soil, 28 (1).  pp. 1-10.  ISSN 0257-1862     </dc:identifier></oai_dc:dc>
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