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| Franco,Henrique Coutinho Junqueira; Pimenta,Maria Teresa Borges; Carvalho,João Luís Nunes; Magalhães,Paulo Sérgio Graziano; Rossell,Carlos Eduardo Vaz; Braunbeck,Oscar Antonio; Vitti,André Cesar; Kölln,Oriel Tiago; Rossi Neto,João. |
| Due to new possibilities for using sugarcane (Saccharum spp.) trash for electricity generation, and the production of 2nd generation ethanol and others chemicals, the interest for its recovery has increased. However, the question of how much trash can be removed from sugarcane field still needs to be clarified. This study evaluated the amount of dry matter, nutrients content, structural compounds and efficiency of the enzymatic hydrolysis of the hydrothermal pretreated materials for tops and dry leaves in samples from sugarcane varieties. Tops and dry leaves present differences in nutrients content and moisture. Therefore, the amount of trash to be collected should not be simply based on percentages, but also should take into account the different... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Saccharum spp.; Enzymatic hydrolysis; Sugarcane crop residues. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162013000500004 |
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| Pannuti,Luiz Eduardo da Rocha; Baldin,Edson Luiz Lopes; Gava,Glauber José de Castro; Kölln,Oriel Tiago; Cruz,Juliana Cristina Sodário. |
| O objetivo deste trabalho foi avaliar o efeito da fertirrigação nitrogenada sobre os danos causados pelo complexo broca-podridão à produtividade e à qualidade da cana-de-açúcar. O experimento foi realizado em campo, em delineamento de blocos ao acaso, com quatro repetições e cinco doses de N (0, 50, 100, 150 e 200 kg ha-1), aplicadas por irrigação por gotejamento. Quantificaram-se as seguintes variáveis: número de orifícios causados por Diatraea saccharalis (Lepidoptera: Crambidae); número de internódios infectados com a podridão-vermelha; percentagem de incidência de podridão-vermelha; produtividade de colmos; e teor de açúcar. Em laboratório, foram avaliados a atratividade e o consumo de fragmentos de colmos por lagartas de quarto instar, em testes com... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Colletotrichum falcatum; Diatraea saccharalis; Saccharum; Atratividade; Broca-da-cana-de-açúcar; Podridão-vermelha. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000400005 |
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| Castro,Sérgio Gustavo Quassi de; Rossi Neto,João; Kölln,Oriel Tiago; Borges,Bernardo Melo Montes Nogueira; Franco,Henrique Coutinho Junqueira. |
| ABSTRACT: Low efficiency of nitrogen from fertilizers is a major concern worldwide, threatening the sustainability of sugarcane production. The N use efficiency (NUE) by sugarcane can be improved by adopting better fertilizing management practices, reducing environmental impacts. This work evaluated the effects of varying N rates and time of application on stalks and sugar yield in ratoon harvested early in the crop season. The experimental design was a randomized block in a 2 × 4 factorial design and a control (no N) with five replications, including two application times (45 or 90 DAH – days after harvest) and four N rates (50, 100, 150, or 200 kg N ha−1). The time of N fertilizer application promoted differences in stalk yield, as the cumulative yield... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: N fertilization; Green cane; Sugarcane yield; Economical rate. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001300237 |
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| Franco,Henrique Coutinho Junqueira; Otto,Rafael; Vitti,André Cesar; Faroni,Carlos Eduardo; Oliveira,Emídio Cantídio de Almeida; Fortes,Caio; Ferreira,Danilo Alves; Kölln,Oriel Tiago; Garside,Alan Leslie; Trivelin,Paulo Cesar Ocheuze. |
| ABSTRACTThe low effectiveness of nitrogen fertilizer (N) is a substantial concern that threatens global sugarcane production. The aim of the research reported in this paper was to assess the residual effect of N-fertilizer applied at sugarcane planting over four crop seasons in relation to sugarcane crop yield. Toward this end three field experiments were established in the state of São Paulo, Brazil, during February of 2005 and July of 2009, in a randomized block design with four treatments: 0, 40, 80 and 120 kg ha−1 of N applied as urea during sugarcane planting. Within each plot, a microplot was established to which 15N-labeled urea was applied. The application of N at planting increased plant cane yield in two of the three sites and sucrose content at... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Saccharum; Urea; Nitrogen fertilization; Isotopic technique. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000600528 |
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| Kölln,Oriel Tiago; Franco,Henrique Coutinho Junqueira; Ferreira,Danilo Alves; Vargas,Vitor Paulo; Castro,Saulo Augusto de Quassi; Cantarella,Heitor; Caldana,Camila; Trivelin,Paulo Cesar Ocheuze. |
| ABSTRACT Retaining the mineral N in the form of NH4+ in the soil for a lengthy period is desirable for reducing losses. Furthermore, there is evidence that sugarcane prefers NH4+-N in place of NO3−-N. This study aimed firstly, to evaluate the potential of root extracts of Bracchiaria humidicola andSaccharum spontaneum, in contrast with the DCD (Dicyandiamide) inhibitor, to increase absorption of N by plants fertilized with ammonium sulfate, and secondly, to quantify the emission of N2O fluxes with the use of this inhibitor. The experiment was developed in a glasshouse in an entirely randomized design where four treatments were applied: AS) ammonium sulfate (control); AS+DCD) ammonium sulfate associated with dicyandiamide; AS+BCH) ammonium sulfate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ammonium; Nitrate; Dicyandiamide; Nitrification; Nitrous oxide. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162016000100034 |
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