Ernest Melkiory Marwa

Tanzanian Bat Guano as an Alternative Source of Phosphorus for Organic Rice Production

Asha Ally Hatibu, Mawazo Jamson Shitindi & Ernest Melkiory Marwa · International Journal of Plant & Soil Science · 2021

Many tropical and subtropical soils are low in phosphorus. This is partly because of excessive weathering, high phosphorous (P) fixation rates, and low P levels in soil parent materials. Continuous removal of P from soils by crops, coupled with limited application of P fertilizer...