Efeitos da mistura pronta de ametryne mais simazine com glyphosate e paraquat no controle de plantas daninhas na cultura do cafeeiro

Content Provider	Semantic Scholar
Author	Carvalho, J. A. Almeida, Maira A. N. Santos, Vera Lúcia Machado Dos Brito, Césio Humberto De Santos, Carlos Machado Dos
Copyright Year	2005
Abstract	This research was conducted from 01/06 to 03/08/98 at the location of Irai de Minas, with the objective of evaluating the biological activity of a commercial mixture of ametryne plus simazine with glyphosate and paraquat, for the control of Brachiaria plantaginea, Digitaria horizontalis, Amaranthus hybridus, Commelina benghalensis and Eleusine indica in a Catucai coffee crop. Treatments were constituted of two doses (2500+960 and 3000+960 g.ha-1) of the commercial mixture of ametryne plus simazine with glyphosate, two doses (2500+300 and 3000+300 g.ha-1) of ametryne plus simazine with paraquat compared with a single dose (2500+300 g.ha-1) of diuron with paraquat and two check treatments with no herbicides (hoeing and without hoeing). It was utilized a back-packed manual sprayer pressurized with CO2 at 39 lb/in2 , with four tee-jet nozzles 110.02 XR, calibrated at a flow rate of 200 liters of the solution per hectare. The experimental design used was a randomized complete-block with four replications. The evaluations of weed control were performed at 15, 30, 45 and 60 days after application. It was concluded that: 1) mixtures of ametryne plus simazine with glyphosate at doses of 2500 + 960 g.ha-1, control with efficacy B. plantaginea; 2) mixtures of ametryne plus simazine with glyphosate at doses of 3000 + 960 were efficient for the control of D. horizontalis and C. benghalensis up to 60 DAA and up to 45 DAA in the control of E. indica and A. hybridus; 3) the mixture of ametryne + simazine with paraquat at both doses studied controls efficiently C. benghalensis up to 45 days DAA; 4) the mixture diuron plus paraquat, was efficient for the control of A. hybridus and C. benghalensis.
Starting Page	86
Ending Page	91
Page Count	6
File Format	PDF HTM / HTML
DOI	10.7824/rbh.v4i2.28
Volume Number	4
Alternate Webpage(s)	http://www.rbherbicidas.com.br/index.php/rbh/article/download/28/21
Alternate Webpage(s)	https://doi.org/10.7824/rbh.v4i2.28
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article