APPLICATION OF CHEMICAL RIPENERS MIXTURES THE TECHNOLOGICAL QUALITY AND AGRICULTURAL PRODUCTIVITY OF SUGARCANE

ABSTRACT The objective of this work was to evaluate the effect of applying mixtures of chemical ripeners on the technological quality and agricultural productivity of sugarcane. The experimental design consisted of randomized blocks arranged in split- split-plots with four blocks, the main plots bei...

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Published in:Caatinga 2017-09, Vol.30 (3), p.541-550
Main Authors: VIANA, RONALDO DA SILVA, VELINI, EDIVALDO DOMINGUES, LISBOA, LUCAS APARECIDO MANZANI, ASSUMPÇÃO, ANA CAROLINA NUNES DOMINGUES, FIGUEIREDO, PAULO ALEXANDRE MONTEIRO
Format: Article
Language:English
Subjects:
Agricultural production
Agricultural technology
AGRICULTURE, DAIRY & ANIMAL SCIENCE
Agrochemicals
AGRONOMY
Experimental design
FISHERIES
FOOD SCIENCE & TECHNOLOGY
FORESTRY
Glyphosate
Productivity
Saccharum officinarum
Sucrose
Sugar
Sugarcane
VETERINARY SCIENCES
Yield
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Summary:ABSTRACT The objective of this work was to evaluate the effect of applying mixtures of chemical ripeners on the technological quality and agricultural productivity of sugarcane. The experimental design consisted of randomized blocks arranged in split- split-plots with four blocks, the main plots being constituted by sugarcane varieties SP803280 and SP801842. The subplots consisted of the application of the following products with their respective mixtures: control - absence of ripener; Sulfometrom methyl + glyphosate; ethephon + glyphosate; glyphosate and compounds of organic carboxylic radicals + glyphosate. The sub-subplots were composed of evaluation times: 0; 15 and 30 days after applying the products. Samples from each plot were collected manually and sent to the laboratory for the determination of soluble Brix solids (% broth); Sucrose content in the broth - Pol (% broth); Reducing sugars (RS%); Total reducing sugars (TRS%); Fiber (%); Purity (%); Humidity (%) and Total recoverable sugar TRS (kg t-1). The plots were fully harvested and the stems were taken for weighing and for characteristics determination: Yield per hectare (TCH) and Yield of sugar per hectare (TAH). The SP803280 variety was more responsive to the use of mixtures of chemical ripeners. For the technological characteristics, sulfometurom methyl (0.02 kg ha-1) + glyphosate (0.15 L ha-1) presented the best results from 15 days after application. Mixtures of chemical ripeners did not increase the yields of stalks and sugar per area. RESUMO O objetivo deste trabalho foi avaliar a aplicação das misturas de maturadores químicos na qualidade tecnológica e produtividade agrícola da cana-de-açúcar . Foi utilizado o delineamento experimental em blocos casualizados arranjados em parcelas sub-subdivididas com 4 blocos, sendo as parcelas principais constituídas pelas variedades de cana-de-açúcar: SP803280 e SP801842. As subparcelas consistiram da aplicação dos seguintes produtos com suas respectivas misturas: controle - ausência de maturador; sulfometurom metil + glifosato; etefon + glifosato; glifosato e compostos de radicais carboxílicos orgânicos + glifosato. As sub-subparcelas foram constituídas de épocas de avaliação: 0; 15 e 30 dias após as aplicações dos produtos. As amostras de cada parcela foram colhidas manualmente e encaminhadas ao laboratório para determinação dos sólidos solúveis Brix (% caldo); teor de sacarose no caldo - Pol (% caldo); Açúcares redutores (AR%); Açúcares redutores to
ISSN:1983-2125
0100-316X
1983-2125
DOI:10.1590/1983-21252017v30n301rc