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Baseline Study of Soil Nutrient Status in Smallholder Farms in Limpopo Province of South Africa

Authors: Mokgolo , M.J.; Mzezewa , J.;

Baseline Study of Soil Nutrient Status in Smallholder Farms in Limpopo Province of South Africa

Abstract

An assessment of soil nutrient status based on farmers’ samples was carried out in the Capricorn, Sekhukhune, and Waterberg Districts of the Limpopo Province of South Africa. A total of 336 soil samples were collected and analysed for pH, phosphorus (P), potassium (K), calcium (Ca) and magnesium (Mg). The results showed that the pH of more than 80% of the submitted soil samples was suitable for the production of most field crops ,while less than 20% required liming to make them productive. Phosphorus levels were very low (<8 mg kg-1), with most soils (≥95%) needing P fertilisation to improve crop yields. Potassium was adequate (>250 mg kg-1) for most districts' crops. Between 70% and 74% of soils from Sekhukhune and Waterberg Districts were deficient in Ca (<200 mg kg-1). Magnesium was adequate (>300 mg kg-1) in more than 60% of the analysed samples. Apart from soil pH, all soil properties showed a high degree of variability across all districts. Further studies are needed to investigate the role of field management, crop rotation, field position in the landscape, lithology, and socioeconomic conditions of the farmer on the observed trends of soil nutrients.

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Keywords

P Deficiency, Smallholder, Soil analysis, Soil fertility., Soil analysis, P Deficiency, Smallholder, Soil fertility

20 references, page 1 of 2

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MANICUS, R.A.F., 2009. Evaluation of Soil Fertility in the Sekhukhune District, South Africa. J. Dev. Sus. Agr., 4: 141-148.

NEVES, D. & DU TOIT, A., 2013. Rural livelihoods in South Africa: Complexity, vulnerability and differentiation. J. Agrar. Chang., 13(1): 93-115.

NYAMANGARA, J., MUGWIRA, L.M. & MPOFU, S.E., 2000. Soil Fertility Status in the Communal Areas of Zimbabwe in relation to Sustainable Crop Production. J Sustain Agr., 16(2): 15-29.

ONI, S.A., NESAMVUNI, A.E., ODHIAMBO, J.J.O. & DAGADA, M.C., 2003. Executive summary of a study of agricultural industry of Limpopo Province. In A.E. Nesamvuni, S.A. Oni, J.J.O. Odhiambo & N.D. Nthakheni (eds.), Agriculture as the cornerstone of the economy of the Limpopo Province. Johanessburg South Africa: Livhu's Printing Enterprises.

RANKOANA, S.A., 2016. Perceptions of Climate Change and the Potential for Adaptation in a Rural Community in Limpopo Province, South Africa. Sustainability., 8: 672 - 682. doi:10.3390/su808067.

ROBERTS, V.G., ADEY, S. & MASON, A.D., 2003. An investigation into soil fertility in two resource-poor farming communities in KwaZulu-Natal (South Africa). S. Afr. J. Plant Soil., 20(3): 146-151.

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    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
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    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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