Assessing the effect of mineralization of different types of poultry manure on the pH, NO3- and NH4+ levels of sandy soil at different soil moisture levels over time

Abstract

This study focused on assessing nitrogen mineralization in sandy soil amended with different types of poultry manure. The pH, NO3- and NH4+ levels in the soil were assessed at different soil moisture conditions over a short laboratory aerobic- incubation period. The objectives of the study were: (1) To assess the pH levels of the manure-amended soil at different soil moisture conditions during the aerobic incubation period, (2) To assess the NO3- levels of the manure-amended soil at different soil moisture conditions during the aerobic incubation period, (3) To assess the NH4+ levels of the manure-amended soil at different soil moisture conditions during the aerobic incubation period.