| Registro completo |
| Provedor de dados: |
PAB
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| País: |
Brazil
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| Título: |
Stalk and sucrose yield in response to nitrogen fertilization of sugarcane under reduced tillage
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| Autores: |
Fortes,Caio
Trivelin,Paulo César Ocheuze
Vitti,André César
Otto,Rafael
Franco,Henrique Coutinho Junqueira
Faroni,Carlos Eduardo
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| Data: |
2013-01-01
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| Ano: |
2013
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| Palavras-chave: |
Saccharum
Agroindustrial production
Biomass
Crop residues
Subsoiling
Unburned cane
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| Resumo: |
The objective of this work was to evaluate the agroindustrial production of sugarcane (millable stalks and sucrose yield) after successive nitrogen fertilizations of plant cane and ratoons in a reduced tillage system. The experiment was carried out at Jaboticabal, SP, Brazil, on a Rhodic Eutrustox soil, during four consecutive crop cycles (March 2005 to July 2009). Plant cane treatments consisted of N-urea levels (control, 40, 80, and 120 kg ha-1 N + 120 kg ha-1 P2O5 and K2O in furrow application). In the first and second ratoons, the plant cane plots were subdivided in N-ammonium nitrate treatments (control, 50, 100, and 150 kg ha-1 N + 150 kg ha-1 K2O as top dressing over rows). In the third ratoon, N fertilization was leveled to 100 kg ha-1 in all plots, including controls, to detect residual effects of previous fertilizations on the last crop's cycle. Sugarcane ratoon was mechanically harvested. A weighing truck was used to evaluate stalk yield (TCH), and samples were collected in the field for analysis of sugar content (TSH). Increasing N doses and meteorological conditions promote significant responses in TCH and TSH in cane plant and ratoons, in the average and accumulated yield of the consecutive crop cycles.
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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=S0100-204X2013000100012
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| Editor: |
Embrapa Secretaria de Pesquisa e Desenvolvimento
Pesquisa Agropecuária Brasileira
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| Relação: |
10.1590/S0100-204X2013000100012
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| Formato: |
text/html
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| Fonte: |
Pesquisa Agropecuária Brasileira v.48 n.1 2013
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| Direitos: |
info:eu-repo/semantics/openAccess
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