Timing of nitrogen application and cover crops on upland rice economic viability

Timing of nitrogen application and cover crops on upland rice economic viability

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Abstract: The objective of this work was to evaluate the economic viability and competitiveness of upland rice (Oryza sativa), compared with flooded rice, in a system with different nitrogen fertilization timing and cover crops in Southeastern Brazil. The treatments consisted of upland rice grown under Urochloa brizantha or Urochloa ruziziensis straw, with the following fertilization: T, 30 kg ha-1 N at rice sowing + no extra N supply (0 kg ha-1); C, 30 kg ha-1 N at rice sowing + 90 kg ha-1 N at rice tillering; A2, 30 kg ha-1 N at rice sowing + 90 kg ha-1 N one day before rice sowing; and A1, 30 kg ha-1 N at rice sowing + 90 kg ha-1 N in the living cover crops. Total operating cost, gross revenue, operating profit, profitability index, and equilibrium price were determined. Upland rice results in a monetary gain for the farmer similar to that of flooded rice when nitrogen is added, regardless of fertilization timing. Under rainfall deficit conditions, upland rice sown on U. brizantha straw shows higher profitability rates than when sown on U. ruziziensis. When there is a possibility of rainfall deficit, U. brizantha, as a cover plant, results in a greater economic security for upland rice producers.

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Main Authors: Pascoaloto,Isabô Melina, Crusciol,Carlos Alexandre Costa, Nascimento,Carlos Antônio Costa do, Ferreira,Carlos Magri, Silva,Mellissa Ananias Soler da, Souza,Luiz Gustavo Moretti de, Esperancini,Maura Seiko Tsutsui
Format: Digital revista
Language:English
Published: Embrapa Secretaria de Pesquisa e Desenvolvimento 2021
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2021000101902
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spelling oai:scielo:S0100-204X20210001019022021-05-10Timing of nitrogen application and cover crops on upland rice economic viabilityPascoaloto,Isabô MelinaCrusciol,Carlos Alexandre CostaNascimento,Carlos Antônio Costa doFerreira,Carlos MagriSilva,Mellissa Ananias Soler daSouza,Luiz Gustavo Moretti deEsperancini,Maura Seiko Tsutsui Oryza sativa Urochloa brizantha Urochloa ruziziensis paddy rice rainfed rice Abstract: The objective of this work was to evaluate the economic viability and competitiveness of upland rice (Oryza sativa), compared with flooded rice, in a system with different nitrogen fertilization timing and cover crops in Southeastern Brazil. The treatments consisted of upland rice grown under Urochloa brizantha or Urochloa ruziziensis straw, with the following fertilization: T, 30 kg ha-1 N at rice sowing + no extra N supply (0 kg ha-1); C, 30 kg ha-1 N at rice sowing + 90 kg ha-1 N at rice tillering; A2, 30 kg ha-1 N at rice sowing + 90 kg ha-1 N one day before rice sowing; and A1, 30 kg ha-1 N at rice sowing + 90 kg ha-1 N in the living cover crops. Total operating cost, gross revenue, operating profit, profitability index, and equilibrium price were determined. Upland rice results in a monetary gain for the farmer similar to that of flooded rice when nitrogen is added, regardless of fertilization timing. Under rainfall deficit conditions, upland rice sown on U. brizantha straw shows higher profitability rates than when sown on U. ruziziensis. When there is a possibility of rainfall deficit, U. brizantha, as a cover plant, results in a greater economic security for upland rice producers.info:eu-repo/semantics/openAccessEmbrapa Secretaria de Pesquisa e DesenvolvimentoPesquisa Agropecuária BrasileiraPesquisa Agropecuária Brasileira v.56 20212021-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2021000101902en10.1590/s1678-3921.pab2021.v56.01924
institution SCIELO
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country Brasil
countrycode BR
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libraryname SciELO
language English
format Digital
author Pascoaloto,Isabô Melina
Crusciol,Carlos Alexandre Costa
Nascimento,Carlos Antônio Costa do
Ferreira,Carlos Magri
Silva,Mellissa Ananias Soler da
Souza,Luiz Gustavo Moretti de
Esperancini,Maura Seiko Tsutsui
spellingShingle Pascoaloto,Isabô Melina
Crusciol,Carlos Alexandre Costa
Nascimento,Carlos Antônio Costa do
Ferreira,Carlos Magri
Silva,Mellissa Ananias Soler da
Souza,Luiz Gustavo Moretti de
Esperancini,Maura Seiko Tsutsui
Timing of nitrogen application and cover crops on upland rice economic viability
author_facet Pascoaloto,Isabô Melina
Crusciol,Carlos Alexandre Costa
Nascimento,Carlos Antônio Costa do
Ferreira,Carlos Magri
Silva,Mellissa Ananias Soler da
Souza,Luiz Gustavo Moretti de
Esperancini,Maura Seiko Tsutsui
author_sort Pascoaloto,Isabô Melina
title Timing of nitrogen application and cover crops on upland rice economic viability
title_short Timing of nitrogen application and cover crops on upland rice economic viability
title_full Timing of nitrogen application and cover crops on upland rice economic viability
title_fullStr Timing of nitrogen application and cover crops on upland rice economic viability
title_full_unstemmed Timing of nitrogen application and cover crops on upland rice economic viability
title_sort timing of nitrogen application and cover crops on upland rice economic viability
description Abstract: The objective of this work was to evaluate the economic viability and competitiveness of upland rice (Oryza sativa), compared with flooded rice, in a system with different nitrogen fertilization timing and cover crops in Southeastern Brazil. The treatments consisted of upland rice grown under Urochloa brizantha or Urochloa ruziziensis straw, with the following fertilization: T, 30 kg ha-1 N at rice sowing + no extra N supply (0 kg ha-1); C, 30 kg ha-1 N at rice sowing + 90 kg ha-1 N at rice tillering; A2, 30 kg ha-1 N at rice sowing + 90 kg ha-1 N one day before rice sowing; and A1, 30 kg ha-1 N at rice sowing + 90 kg ha-1 N in the living cover crops. Total operating cost, gross revenue, operating profit, profitability index, and equilibrium price were determined. Upland rice results in a monetary gain for the farmer similar to that of flooded rice when nitrogen is added, regardless of fertilization timing. Under rainfall deficit conditions, upland rice sown on U. brizantha straw shows higher profitability rates than when sown on U. ruziziensis. When there is a possibility of rainfall deficit, U. brizantha, as a cover plant, results in a greater economic security for upland rice producers.
publisher Embrapa Secretaria de Pesquisa e Desenvolvimento
publishDate 2021
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2021000101902
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