search
for
 About Bioline  All Journals  Testimonials  Membership  News  Donations


Chilean Journal of Agricultural Research
Instituto de Investigaciones Agropecuarias, INIA
ISSN: 0718-5820
EISSN: 0718-5839
Vol. 72, No. 3, 2012, pp. 350-357
Bioline Code: cj12055
Full paper language: English
Document type: Research Article
Document available free of charge

Chilean Journal of Agricultural Research, Vol. 72, No. 3, 2012, pp. 350-357

 en BIO-ECONOMIC AND QUALITATIVE IMPACT OF REDUCED HERBICIDE USE IN DIRECT SEEDED FINE RICE THROUGH MULTIPURPOSE TREE WATER EXTRACTS
Khaliq, Abdul; Matloob, Amar & Riaz, Yasir

Abstract

Weed control program should be environmentally benign and cost-effective so that reduced herbicide use can help meet these goals. Field trials were conducted to assess the bio-economic and qualitative impact of reduced doses (25 and 50% of label dose) of a postemergence pyrimidinyloxybenzoic acid herbicide (bispyribac-sodium) applied alone or in combination with multipurpose tree (eucalyptus [ Eucalyptus camaldulensis check for this species in other resources Dehnh.], mango [ Mangifera indica check for this species in other resources L.], and mulberry [ Morus alba check for this species in other resources L.]) water extracts in direct seeded rice ( Oryza sativa check for this species in other resources L.) fields. The label dose of bispyribac-sodium and penoxsulam along with weed control were included for comparison. Tank mixing of multipurpose tree water extracts with reduced herbicide doses accounted for > 55% suppression in weed density and > 75% in dry weight; they were quite higher than those recorded for the same herbicide doses used alone. A combination of these extracts with 50% reduced dose of bispyribac-sodium improved rice yield and quality attributes similar to the label dose of this herbicide. Despite the higher net benefits associated with label herbicide dose, the maximum marginal rate of return was achieved with a tank mix of 25% label herbicide dose with multipurpose tree water extracts.

Keywords
Reduced dose, weed suppression, yield, kernel quality, Oryza sativa

 
© Copyright 2012 - Chilean Journal of Agricultural Research
Alternative site location: http://www.inia.cl

Home Faq Resources Email Bioline
© Bioline International, 1989 - 2017, Site last up-dated on 16-Oct-2017.
Site created and maintained by the Reference Center on Environmental Information, CRIA, Brazil
System hosted by the Internet Data Center of Rede Nacional de Ensino e Pesquisa, RNP, Brazil