Organic fertilization with turkey litter for maize cultivation in tropical region

Autor: Diego Oliveira Ribeiro, Gustavo Castoldi, Manuel Rodriguez Carballal, Mariângela Brito Freiberger, Warlles Domingos Xavier, Franciele de Freitas Silva, Andrisley Joaquim da Silva, Raphael Krauspenhar de Oliveira Santos, Gildomar Alves dos Santos
Rok vydání: 2019
Předmět:
Zdroj: DECEMBER 2019. :2062-2066
ISSN: 1835-2707
1835-2693
DOI: 10.21475/ajcs.19.13.12.p2076
Popis: Residues from agroindustry activity have been commonly used as a source of fertilizer for fertilization of annual crops. Sometimes these residues can replace the mineral fertilizers totally or partially, while their effects can be extended to the soil attributes. Thus, the objective of this study was to evaluate the effects of replacing conventional chemical fertilization with organic fertilization using turkey litter on maize grain yield and in the chemical attributes of an Oxisol in tropical region. The experiment was carried out in two crop seasons with various quantities of turkey litter, or in blend with chemical fertilizers, in a randomized block design with six treatments and five replicates. The treatments were as follows: T1 – Control treatment; T2 – Chemical fertilization with 450 kg ha-1 of 10-27-10 (NPK); T3 – Application of 3,800 kg ha-1 of turkey litter; T4 – Application of 7,600 kg ha-1 of turkey litter; T5 – Chemical fertilization with 450 kg ha-1 of 10-27-10 + 1900 kg ha-1 of turkey litter; T6 – Chemical fertilization with 450 kg ha-1 of 10-27-10 + 3,800 kg ha-1 of turkey litter. The organic fertilization with turkey litter presented potential for total or partial replacement of chemicals fertilization for maize cultivation with no loss in grain yield. Therefore, the treatments of T3 and T5 could be recommended to farmers at a lower cost. The treatment T4 increased the P and K contents in the soil, reaching to 24 mg dm-3 and 3.1 cmoc dm-3, respectively, after two crop seasons.
Databáze: OpenAIRE
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