Soil pH and lime requirement for high potential communal areas of Zimbabwe

Nyamangara, J.; Mpofu, S.E

doi:10.4314/jassa.v2i2.16878

Cited by 4 publications

(2 citation statements)

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“…Smallholder agriculture in semi-arid areas is hampered by biophysical and climatic constraints among others. The predominant chemical and physical challenges with soils in smallholder farming areas of Zimbabwe include low organic matter, low pH and poor structure (Nyamangara and Mpofu, 1996;Twomlow et al, 2006). Marginal lands once used for grazing have been opened for cropping and this further increases the erosion risk of the poor structured soils (Whitlow, 1988).…”

Section: Introductionmentioning

confidence: 99%

The influence of conservation tillage methods on soil water regimes in semi-arid southern Zimbabwe

Mupangwa

Twomlow²,

Walker

2008

Physics and Chemistry of the Earth, Parts A/B/C

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Section: Introductionmentioning

confidence: 99%

The influence of conservation tillage methods on soil water regimes in semi-arid southern Zimbabwe

Mupangwa

Twomlow²,

Walker

2008

Physics and Chemistry of the Earth, Parts A/B/C

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“…The soil used in this study had high sand content (73%) and very low pH (4.0), which is considered very strongly acidic for Zimbabwean soils (Nyamangara & Mpofu, 1996). The high sand content means it has low nutrient retention capacity.…”

Section: Characteristics Of Soil and Amendment Materialsmentioning

confidence: 99%

Waste to resource: use of water treatment residual for increased maize productivity and micronutrient content

Gwandu

Blake

Nezomba

et al. 2021

Environ Geochem Health

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Soil degradation, which is linked to poor nutrient management, remains a major constraint to sustained crop production in smallholder urban agriculture (UA) in sub-Saharan Africa (SSA). While organic nutrient resources are often used in UA to complement mineral fertilizers in soil fertility management, they are usually scarce and of poor quality to provide optimum nutrients for crop uptake. Alternative soil nutrient management options are required. This study, therefore, evaluates the short-term benefits of applying an aluminium-based water treatment residual (Al-WTR), in combination with compost and inorganic P fertilizer, on soil chemical properties, and maize (Zea mays L.) productivity and nutrient uptake. An eight-week greenhouse experiment was established with 12 treatments consisting of soil, Al-WTR and compost (with or without P fertilizer). The co-amendment (10% Al-WTR + 10% compost) produced maize shoot biomass of 3.92 ± 0.16 g at 5 weeks after emergence, significantly (p < 0.05) out-yielding the unamended control which yielded 1.33 ± 0.17 g. The addition of P fertilizer to the co-amendment further increased maize shoot yield by about twofold (7.23 ± 0.07 g). The co-amendment (10% Al-WTR + 10% C) with P increased maize uptake of zinc (Zn), copper (Cu) and manganese (Mn), compared with 10% C + P. Overall, the results demonstrate that combining Al-WTR, compost and P fertilizer increases maize productivity and micronutrient uptake in comparison with single amendments of compost and fertilizer. The enhanced micronutrient uptake can potentially improve maize grain quality, and subsequently human nutrition for the urban population of SSA, partly addressing the UN’s Sustainable Development Goal number 3 of improving diets.

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Impact of Mobile Night Kraals on Soil PH in Crop Fields—A Pilot Study

Nyamusamba

2022

Climate Change Adaptations in Dryland Agriculture in Semi-Arid Areas

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Soil pH and lime requirement for high potential communal areas of Zimbabwe

Cited by 4 publications

References 0 publications

The influence of conservation tillage methods on soil water regimes in semi-arid southern Zimbabwe

The influence of conservation tillage methods on soil water regimes in semi-arid southern Zimbabwe

Waste to resource: use of water treatment residual for increased maize productivity and micronutrient content

Impact of Mobile Night Kraals on Soil PH in Crop Fields—A Pilot Study

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