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| Amaral, Carita Liberato; Pavan, Guilherme Bacarin; Pereira, Fernanda Campos Mastrotti; Alves, Pedro Luis da Costa Aguiar. |
| Weed interference can reduce chickpea growth and, therefore, productivity depending on the period of coexistence and the nutritional status of the crop, among other factors. A study was performed over two crop years to estimate the critical period of weed interference (CPWI) during chickpea production under three doses of nitrogen (N) fertilizer topdressing (0, 50, and 75 kg N ha-1). The experiments were conducted at 0, 7, 14, 21, 28, 35, 42, 56, 63, and 140 days after emergence (DAE) of chickpea/weed coexistence under two conditions: initially weed-free and initially weed-infested. The presence of weeds negatively affected chickpea production and reduced yields by 70% on average regardless of N rate, rendering the crop economically unfeasible. The CPWI... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fitossanidade Cicer arietinum L.; Coexistence periods; Critical period of interference; Productivity. Matologia. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/35666 |
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| Amaral, Carita Liberato; Pavan, Guilherme Bacarin; Pereira, Fernanda Campos Mastrotti; Alves, Pedro Luis da Costa Aguiar. |
| Weed interference can reduce chickpea growth and, therefore, productivity depending on the period of coexistence and the nutritional status of the crop, among other factors. A study was performed over two crop years to estimate the critical period of weed interference (CPWI) during chickpea production under three doses of nitrogen (N) fertilizer topdressing (0, 50, and 75 kg N ha-1). The experiments were conducted at 0, 7, 14, 21, 28, 35, 42, 56, 63, and 140 days after emergence (DAE) of chickpea/weed coexistence under two conditions: initially weed-free and initially weed-infested. The presence of weeds negatively affected chickpea production and reduced yields by 70% on average regardless of N rate, rendering the crop economically unfeasible. The CPWI... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cicer arietinum L.; Coexistence periods; Critical period of interference; Productivity.; Matologia. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/35666 |
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