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Investigating the effectiveness of integrating plant growth promoting microbes (biofertilisers) in traditional maize cropping systems of Malawi

Author Affiliations

  • 1Ministry of Agriculture, Chitedze Agricultural Research Station Box 158 Lilongwe, Malawi

Res. J. Recent Sci., Volume 11, Issue (3), Pages 1-15, July,2 (2022)


Maize production is facing an array of soil nutrient related problems throughout tropical countries. In most tropical soils, phosphorous, zinc, potassium, boron, and other nutrients are often in fixed form and extensive research has shown potentiality of indigenous microbes that solubilise these fixed minerals. The experiments were, therefore, conducted to evaluate the response of integrating a concoction of indigenous plant growth promoting microbes (PGPM)- with ability to fix nitrogen and solubilise phosphorous, potassium and zinc in traditional maize cropping systems for reduced production cost and environmental degradation that emanate from the use of inorganic fertilizers. A concoction of indigenous PGPM, a product of LOGO TECH operating under trade secrets was used in this study. Field layout followed completely Randomized Block Design with three replications and 13 treatments (based on different rates of inorganic fertilizers). Results showed PGPM significantly influenced yield and its components of maize in the study sites. However, maize yield and agronomic traits were significantly higher when PGPM were integrated with 69kg of nitrogen in medium altitude districts. The application of basal fertilizer negatively affects the performance of PGPM due to heavy metals associated with phosphate rocks, a raw material used in the production of phosphate based fertilizers.


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