Aluminum phosphate sludge as a phosphorus source for maize production under low soil phosphorus availability.

ABSTRACT:

Background

With increasing food demand as a consequence of the growing world population, there is a corresponding demand for additional sources of phosphorus (P). Alum-phosphate (Al-P) sludge is a by-product of wastewater treatment and can be a good source of P. In this study, the response of maize (Zea mays L.) to Al-P sludge was tested. Maize was chosen as the test crop due to its prevalent use as human and animal food and as a source of biofuel. The objective of the study was to investigate Al-P sludge as a source of P compared to a commercial fertilizer (monoammonium phosphate, MAP).

Methods

A growth chamber assay was conducted over four cropping cycles (45 d each). The application rate was 9.7, 19.4, 29.1 and 38.8 mg P kg^-1 dry soil. Amendments were ap

SUBMITTER: Tolofari A 

PROVIDER: S-EPMC9392449 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature