Genetiese kovariante van opbrengs by mielies by Kotze, P. A.(Paul Albertus)

Subjects: “…Corn -- Yields…”
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Effect of Acacia mearnsii mulch on soil moisture and temperature, productivity of Zea mays, and certain social aspects by Ochieng, Dorothy A

Subjects: “…Corn -- Yields…”
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Effect of mycorrhizal inoculation and phosphorus levels on growth and yield of wheat and maize crops grown on a phosphorus deficient sandy soil by Pharudi, Joseph Albert

Subjects: “…Corn -- Yields…”
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Assessing technical efficiency of traditional and hybrid maize farmers in Malawi by Shakankale, Kabanga Tabo

Subjects: “…Corn -- Yields -- Malawi…”
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Die invloed van bemesting op die grond en die groei van mielies op George by De Villiers, J. B. M.(Johannes Barend Michiel)

Subjects: “…Corn -- Yields -- South Africa -- George…”
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Investigation in South Africa of viruses implicated in a maize lethal necrosis disease outbreak in East Africa by Nel, Natalie

Subjects: “…Corn -- Yields -- Africa, Sub-Saharan…”
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