Bibliographic Details
| Title: |
Organomineral Fertilizer Is an Agronomic Efficient Alternative for Poultry Litter Phosphorus Recycling in an Acidic Ferralsol |
| Authors: |
Vinicius de Melo Benites, Sulian Junkes Dal Molin, June Faria Scherrer Menezes, Getúlio Sousa Guimarães, Pedro Luiz Oliveira de Almeida Machado |
| Source: |
Frontiers in Agronomy, Vol 4 (2022) |
| Publisher Information: |
Frontiers Media S.A., 2022. |
| Publication Year: |
2022 |
| Collection: |
LCC:Agriculture
LCC:Plant culture |
| Subject Terms: |
soil P legacy, sustainable P use, tropical agriculture, Brazilian Cerrado, chicken litter, organic residue, Agriculture, Plant culture, SB1-1110 |
| More Details: |
Brazil is a large phosphate importer due to the high demand for this nutrient for grain cropping on very weathered soils. However, Brazil has an important poultry production that generates ~6.8 million m3 year−1 of organic residue containing phosphorus and other nutrients, increasing the risk of environmental harm. However, if well managed, poultry litter can be a valuable source of P for crop growth in low fertile tropic soils. This article summarizes the long-term agronomic efficiency of organomineral fertilizers in supplying P to soybean and soil P maintenance as a strategy for secondary P recycling. Three fertilizers were used as P source: organomineral based on raw poultry litter, organomineral based on composted poultry litter; and a mineral monoammonium phosphate. Five soybean crop seasons were conducted with annual P doses (20, 40, 60, and 80 kg ha−1 of P2O5) and control without P application. After five crops, one additional soybean crop season was grown without P to evaluate the residual effect. Phosphorus concentration in leaves was evaluated in the first four seasons, and soil P availability in the first, third, and fourth seasons. There was no difference in soybean grain yield, P concentration in leaves, and soil P availability as a function of the P sources in the first crop. Soybean grain yield only varied with the P rate applied after the second season, when the control had the lowest grain yield. After five crops, organomineral resulted in a slight but significant soybean yield gain compared with MAP at higher doses. Over time, the available soil P increased with the highest P dose and decreased in the control treatment. The intermediate dose of 40 kg ha−1 P2O5 was enough to keep soil P level and lead to high soybean grain yield over the time, suggesting that the rate of applied P close to the P exportation by the grains has a long-term sustainable effect even in tropical soils, where residual P stocks are used. It can be concluded that organomineral fertilizer is an efficient farm input that can be used for residue destination and nutrient recycling, especially in acid tropical soils. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
2673-3218 |
| Relation: |
https://www.frontiersin.org/articles/10.3389/fagro.2022.785753/full; https://doaj.org/toc/2673-3218 |
| DOI: |
10.3389/fagro.2022.785753 |
| Access URL: |
https://doaj.org/article/e500784ecd44480095e1bcaea92a316f |
| Accession Number: |
edsdoj.500784ecd44480095e1bcaea92a316f |
| Database: |
Directory of Open Access Journals |
