produtividade da cana-de-açúcar fertirrigada com n e k via gotejamento subsuperficial productivity of sugarcane fertigation with nk by subsurface drip

Clicks: 197
ID: 225794
2008
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Abstract
O objetivo deste trabalho consistiu no estudo da fertirrigação por gotejamento subsuperficial na produtividade da cana-de-açúcar, no segundo e terceiro ciclos de cultivo, e os efeitos nos índices tecnológicos na cultura. O experimento foi desenvolvido na área experimental da Faculdade de Ciências Agronômicas, FCA/UNESP - Botucatu. O tubo gotejador foi instalado a 30 cm de profundidade e sob a fileira de plantio da cana-de-açúcar. A variedade cultivada foi a RB 72454. O tratamento com a aplicação da maior dose de NK via fertirrigação foi o que respondeu melhor, apresentando produtividade de colmos de 190,01 t ha-1 e 168,80 t ha-1 para o segundo e terceiro ciclos, respectivamente. A fertirrigação não alterou a qualidade tecnológica da cana-de-açúcar nos dois ciclos estudados e proporcionou incrementos na produção de colmos em relação à testemunha, de 43,5% e 67,2%, para o segundo e terceiro cortes, respectivamente.
The objective of this work consisted in the study of the fertigation and subsurface drip irrigation in the sugarcane productivity, in the second and the third seasons and technological effects in the growth. The experiment was developed in the experimental area of the Agronomical Sciences Faculty, FCA/UNESP - Botucatu, Brazil. The drip pipe was installed at 30 cm of depth and under the plantation line of sugar cane RB 72454 variety. The fertigation treatment with the biggest dose presented the better yield, with 190.01 t ha-1 and 168.80 t ha-1 to the second and the third harvest, respectively. The fertigation did not modify the technological qualities of the sugarcane in the two studied seasons, and the irrigation provided 43.5% and 67.2% of increments in the production of stem, to the second and third cut, respectively.
Reference Key
dalri2008engenhariaprodutividade Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Alexandr B. Dalri;Raimundo L. Cruz
Journal bioorganic and medicinal chemistry letters
Year 2008
DOI
10.1590/S0100-69162008000300012
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162008000300012
Keywords
fertigation drip irrigationagriculture (general)

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