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BIBTEX RIS

Application of slaughterhouse residues as nitrogen source replacing commercial fertilizers on mombasa grass (Megathyrsus maximus)

2019; Southern Cross Publishing; Volume: 13; Issue: 02 Linguagem: Inglês

10.21475/ajcs.19.13.02.p1459

1835-2693

Rubens Ribeiro da Silva, Rubson da Costa Leite, Jefferson Santana da Silva Carneiro, Gilson Araújo de Freitas, Antônio Carlos Martins dos Santos, Antônio Clementino dos Santos, Luiz Alberto Kuyumjian,

Rural Development and Agriculture

We hypothesized that the use of the residues of hull and horn flour and blood flour from the cattle slaughtering industry could provide a similar effect of nitrogen fertilizers when applied in pastures.For this reason, the objective was to evaluate the agronomic performance of mombasa grass fertilized with alternative nitrogen sources.A randomized block design in a 3 x 4 + 1 factorial scheme was used with four replications.Three sources of nitrogen were studied (hoof and horn flour, blood flour and urea) and four nitrogen doses (100, 200, 300 and 400 kg ha -1 N), plus a control with no nitrogen application.The experimental units consisted of plastic pots with a capacity of 5.0 dm 3 , and 4.0 dm 3 of soil was used.The application of the alternative sources -hull and horn flour and blood flour -promoted an increase in attributes such as leaf area, number of tillers, crude protein and forage mass.The organic sources have the potential to be applied as nitrogen sources in soils under pasture, which would promote an eco-friendly destination for these residues.