Efficacy and economic comparison of weed management in tomato.

Autor: Daramola, Olumide Samuel, Adigun, Joseph Aremu, Olorunmaiye, Patience Mojibade, Adeyemi, Olusegun Raphael
Předmět:
Zdroj: International Journal of Vegetable Science; Jul-Aug2021, Vol. 27 Issue 4, p352-363, 12p
Abstrakt: Weed interference in tomato (Solanum lycopersicum L.) reduces fruit yield and economic return under tropical conditions for smallholder growers who pay for labor. Field experiments were conducted in a tropical forest-savanna transition zone to evaluate the efficacy and economic benefits of hand weeding, herbicides and their combination in tomato cultivation. Pre-emergence application of propaben® (metolachor+prometryn) and butachlor, each at 2 kg∙ha−1, plus hand weeding at 40 days after transplanting reduced weed density and biomass, and increased weed control efficacy (57–64%) less than the weed-free check (100%) and better than two hand weedings (45%), or either herbicide applied alone (34–38%). Propaben® or butachlor plus hand weeding increased number of leaves and branches, number of fruit and fruit yield of tomato similar to the weed-free check and better than two hand weedings, or either herbicide applied alone. Although the weed-free check gave similar fruit yield, propaben® or butachlor plus hand weeding was 37–44% higher in net return. Application of propaben® or butachlor alone gave comparable net returns to two hand weedings and the weed-free check, but had a 61–88% higher cost-benefit ratio. Multiple hand weeding did not guarantee the highest yield or net return and increased cost of production. The combination of propaben® or butachlor plus hand weeding will provide higher tomato yield and net return through efficient weed control at relatively lower cost. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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