Soil water dynamics and yield in maize and Brachiaria ruziziensis intercropping
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...
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Universidade Federal de Goiás
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doaj-6af515257d8245968a33dd23b7f68d082021-08-02T17:21:15ZengUniversidade Federal de Goiás Pesquisa Agropecuária Tropical1983-40632020-05-0150e5980910.1590/1983-40632020v5059809Soil water dynamics and yield in maize and Brachiaria ruziziensis intercroppingGabriela Sabrine França Silva0https://orcid.org/0000-0002-0348-5416Aderson Soares de Andrade Júnior1https://orcid.org/0000-0002-0619-1851Milton José Cardoso2https://orcid.org/0000-0003-2144-0104Raimundo Bezerra de Araújo Neto3https://orcid.org/0000-0003-0037-7126Universidade Federal do Piauí, Campus do Socopo, Teresina, PI, Brasil.Empresa Brasileira de Pesquisa Agropecuária (Embrapa Meio Norte), Teresina, PI, Brasil. Empresa Brasileira de Pesquisa Agropecuária (Embrapa Meio Norte), Teresina, PI, Brasil. Empresa Brasileira de Pesquisa Agropecuária (Embrapa Meio Norte), Teresina, PI, Brasil. 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 intercroppingtreatments 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.https://www.revistas.ufg.br/pat/article/view/59809/34714urochloa ruziziensiscrop-livestock integrationsowing density |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Gabriela Sabrine França Silva Aderson Soares de Andrade Júnior Milton José Cardoso Raimundo Bezerra de Araújo Neto |
spellingShingle |
Gabriela Sabrine França Silva Aderson Soares de Andrade Júnior Milton José Cardoso Raimundo Bezerra de Araújo Neto Soil water dynamics and yield in maize and Brachiaria ruziziensis intercropping Pesquisa Agropecuária Tropical urochloa ruziziensis crop-livestock integration sowing density |
author_facet |
Gabriela Sabrine França Silva Aderson Soares de Andrade Júnior Milton José Cardoso Raimundo Bezerra de Araújo Neto |
author_sort |
Gabriela Sabrine França Silva |
title |
Soil water dynamics and yield in maize and Brachiaria ruziziensis intercropping |
title_short |
Soil water dynamics and yield in maize and Brachiaria ruziziensis intercropping |
title_full |
Soil water dynamics and yield in maize and Brachiaria ruziziensis intercropping |
title_fullStr |
Soil water dynamics and yield in maize and Brachiaria ruziziensis intercropping |
title_full_unstemmed |
Soil water dynamics and yield in maize and Brachiaria ruziziensis intercropping |
title_sort |
soil water dynamics and yield in maize and brachiaria ruziziensis intercropping |
publisher |
Universidade Federal de Goiás |
series |
Pesquisa Agropecuária Tropical |
issn |
1983-4063 |
publishDate |
2020-05-01 |
description |
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 intercroppingtreatments 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. |
topic |
urochloa ruziziensis crop-livestock integration sowing density |
url |
https://www.revistas.ufg.br/pat/article/view/59809/34714 |
work_keys_str_mv |
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