Influence of bio-rock P fertilizer on nutritional composition of whole maize grains: the case of Madaba and Morogoro, Tanzania
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Date
2022
Journal Title
Journal ISSN
Volume Title
Publisher
An International Journal of Basic and Applied Research
Abstract
This study was designed to understand the influence of Bio-rock P fertilizer as the source
of phosphorous on nutritional composition in maize grain. Bio-rock P fertilizer is a preparation
made of rock phosphate and phosphate solubilizing bacteria (PSB). The experiment was laid out
in randomized complete block design with three replications each receiving five rates of bio-rock
phosphate fertilizer (Control, 20 kg P/ha with PSB, 40 kg P/ha with PSB, 60 kg P/ha with PSB and
80 kg P/ha with PSB). The study was carried out at two geographically different sites; Magadu
in Morogoro and Madaba in Ruvuma for the duration of 90 days in the 2019 - 2021 cropping
season. In both sites, the results showed that, bio-rock phosphate fertilizer rates had no significant
influence on percentage protein, carbohydrate, fibre and moisture content. However, Bio-rock P
rates had a significant effect on ash and fat contents of maize grains (p<0.05). Bio-rock phosphate
fertilizer rates had no significant influence on percentage protein, carbohydrate, fibre and moisture
content. For mineral content, there was significant difference in P, K, Mg, and Fe in Magadu and
Madaba samples. Therefore, application of bio-rock phosphate increased macronutrients content
(ash and fat) and some of micronutrients specifically phosphorous, potassium, magnesium and iron
content and as the rates of bio-rock phosphate increased.
Description
Journal Article
Keywords
Bio-rock phosphate, Maize, Nutritional, Quality