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Registro Completo |
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
08/05/2020 |
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Data da última atualização: |
08/05/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SILVA, G. S. F.; ANDRADE JUNIOR, A. S. de; CARDOSO, M. J.; ARAUJO NETO, R. B. de. |
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Afiliação: |
Gabriela Sabrine França Silva, UFPI; ADERSON SOARES DE ANDRADE JUNIOR, CPAMN; MILTON JOSE CARDOSO, CPAMN; RAIMUNDO BEZERRA DE ARAUJO NETO, CPAMN. |
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Título: |
Soil water dynamics and yield in maize and Brachiaria ruziziensis intercropping. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Tropical, v. 50, e59809, 2020. |
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ISSN: |
1983-4063 |
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DOI: |
10.1590/1983-40632020v5059809 |
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Idioma: |
Inglês |
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Conteúdo: |
In intercropping systems, a high plant density can delay the biomass accumulation and affect the water availability to plants. This study aimed to evaluate the soil water dynamics and the crop yield performance in maize and Brachiaria ruziziensis intercropping under different sowing densities of the forage grass. The experiment was conducted in a randomized block design, with treatments associated to the sowing densities (2 kg ha-1, 4 kg ha-1, 6 kg ha-1 and 8 kg ha-1) and the single cropping for both species as controls. The maize plants were evaluated for grain yield and B. ruziziensis for number of plants per hectare and shoot fresh and dry matter. The intercropping performance was evaluated using the land-use efficiency index. The soil water dynamics was monitored in two soil depths (0-0.3 m and 0.3-0.6 m) by using the time domain reflectometry method. The evaluation of soil water storage was carried out from plots with four of the crop systems (single maize or B. ruziziensis, and intercropping with the extreme sowing densities), at four different times. The increase in the sowing density of B. ruziziensis decreased the grain yield of the intercropped maize by 30.8 %. The intercropping system using 2 kg ha-1 of the grass seeds resulted in the best land-use efficiency (23 %). In addition, the intercropping treatments promoted a higher extraction of water from the soil, mainly at the maize growth stages with higher hydric demand (e.g., flowering and grain filling). These systems stimulate the extraction of water from deeper soil layers, when compared to maize in single cropping. MenosIn intercropping systems, a high plant density can delay the biomass accumulation and affect the water availability to plants. This study aimed to evaluate the soil water dynamics and the crop yield performance in maize and Brachiaria ruziziensis intercropping under different sowing densities of the forage grass. The experiment was conducted in a randomized block design, with treatments associated to the sowing densities (2 kg ha-1, 4 kg ha-1, 6 kg ha-1 and 8 kg ha-1) and the single cropping for both species as controls. The maize plants were evaluated for grain yield and B. ruziziensis for number of plants per hectare and shoot fresh and dry matter. The intercropping performance was evaluated using the land-use efficiency index. The soil water dynamics was monitored in two soil depths (0-0.3 m and 0.3-0.6 m) by using the time domain reflectometry method. The evaluation of soil water storage was carried out from plots with four of the crop systems (single maize or B. ruziziensis, and intercropping with the extreme sowing densities), at four different times. The increase in the sowing density of B. ruziziensis decreased the grain yield of the intercropped maize by 30.8 %. The intercropping system using 2 kg ha-1 of the grass seeds resulted in the best land-use efficiency (23 %). In addition, the intercropping treatments promoted a higher extraction of water from the soil, mainly at the maize growth stages with higher hydric demand (e.g., flowering and grain filling). These sy... Mostrar Tudo |
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Palavras-Chave: |
Integração lavoura-pecuária. |
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Thesagro: |
Capim Urochloa; Densidade de Semeadura; Sistema de Cultivo. |
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Thesaurus Nal: |
Density; Intercropping; Sowing; Urochloa ruziziensis. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/212824/1/SoilWaterDynamicsPesqAgropTropiocalV.50.2020.pdf
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Marc: |
LEADER 02441naa a2200277 a 4500
001 2122160
005 2020-05-08
008 2020 bl uuuu u00u1 u #d
022 $a1983-4063
024 7 $a10.1590/1983-40632020v5059809$2DOI
100 1 $aSILVA, G. S. F.
245 $aSoil water dynamics and yield in maize and Brachiaria ruziziensis intercropping.$h[electronic resource]
260 $c2020
520 $aIn intercropping systems, a high plant density can delay the biomass accumulation and affect the water availability to plants. This study aimed to evaluate the soil water dynamics and the crop yield performance in maize and Brachiaria ruziziensis intercropping under different sowing densities of the forage grass. The experiment was conducted in a randomized block design, with treatments associated to the sowing densities (2 kg ha-1, 4 kg ha-1, 6 kg ha-1 and 8 kg ha-1) and the single cropping for both species as controls. The maize plants were evaluated for grain yield and B. ruziziensis for number of plants per hectare and shoot fresh and dry matter. The intercropping performance was evaluated using the land-use efficiency index. The soil water dynamics was monitored in two soil depths (0-0.3 m and 0.3-0.6 m) by using the time domain reflectometry method. The evaluation of soil water storage was carried out from plots with four of the crop systems (single maize or B. ruziziensis, and intercropping with the extreme sowing densities), at four different times. The increase in the sowing density of B. ruziziensis decreased the grain yield of the intercropped maize by 30.8 %. The intercropping system using 2 kg ha-1 of the grass seeds resulted in the best land-use efficiency (23 %). In addition, the intercropping treatments promoted a higher extraction of water from the soil, mainly at the maize growth stages with higher hydric demand (e.g., flowering and grain filling). These systems stimulate the extraction of water from deeper soil layers, when compared to maize in single cropping.
650 $aDensity
650 $aIntercropping
650 $aSowing
650 $aUrochloa ruziziensis
650 $aCapim Urochloa
650 $aDensidade de Semeadura
650 $aSistema de Cultivo
653 $aIntegração lavoura-pecuária
700 1 $aANDRADE JUNIOR, A. S. de
700 1 $aCARDOSO, M. J.
700 1 $aARAUJO NETO, R. B. de
773 $tPesquisa Agropecuária Tropical$gv. 50, e59809, 2020.
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