| Registro completo |
| Provedor de dados: |
PAB
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| País: |
Brazil
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| Título: |
Ammonium chloride as an alternative source of nitrogen for sugarcane during two consecutive cycles
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| Autores: |
Megda,Michele Xavier Vieira
Mariano,Eduardo
Leite,José Marcos
Megda,Marcio Mahmoud
Trivelin,Paulo Cesar Ocheuze
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| Data: |
2019-01-01
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| Ano: |
2019
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| Palavras-chave: |
Saccharum
Electrical conductivity
Nitrogen fertilization
Root system
Stalk productivity
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| Resumo: |
Abstract: The objective of this work was to evaluate the effect of the application of ammonium chloride as a nitrogen source for sugarcane (Saccharum sp.) on the development of the crop’s shoot and roots during two consecutive cycles. The experiment was conducted on a Typic Hapludox in the first and second sugarcane ratoons. The treatments consisted of four N doses (50, 100, 150, and 200 kg ha-1) applied as ammonium chloride (NH4Cl), besides a control, without the application of N. The increase in the NH4Cl dose increased in up to three times soil electrical conductivity in the layer of 0.0-0.2 m, with a consequent increase in the concentration of chlorine in leaves. In the second cycle, the contents of chlorine increased in 1,900 mg kg-1 in the leaf with the application of 200 mg kg-1 NH4Cl, when compared with the control. In the first cycle, the application of NH4Cl doses above 200 kg ha-1 N promoted a decrease in shoot productivity. In both cycles, there was no effect of the NH4Cl doses on root dry matter. High doses of NH4Cl, in consecutive sugarcane cycles, result in a decrease in the productivity of stalks for processing.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000102100
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| Editor: |
Embrapa Secretaria de Pesquisa e Desenvolvimento
Pesquisa Agropecuária Brasileira
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| Relação: |
10.1590/s1678-3921.pab2019.v54.00329
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| Formato: |
text/html
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| Fonte: |
Pesquisa Agropecuária Brasileira v.54 2019
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| Direitos: |
info:eu-repo/semantics/openAccess
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