Cost-benefit analysis of the selected weed control options in cassava production system
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Date
2021-12-31
Journal Title
Journal ISSN
Volume Title
Publisher
Greener Journal of Agricultural Sciences
Abstract
Weeding activity is one of the major constraints in cassava production as it requires highcapital and it takes 50 to 80 percent of the total production budget. Based on this fact, there is a need to determine the most economical integrated weed control option(s) thatwill effectively control weeds and minimize cost of production. The effect of different weed control treatment combinations was studied and the most economical one(s) were determined during 2019/2020 planting season at Ilonga village, Kilosa and Kiimbwanindivillage, Mkuranga, Tanzania. Till only and till + Ridge, pre-emergence herbicides Primagram Gold a.i 290 g L S-metolachlor + 370 g L atrazine and Oxfen a.i Oxyfluorfen 24% EC), post emergence herbicides (Force up a.i 480 g/L of Glyphosate- Isopropylamine salt and back pack weeder were tested on Cassava variety Kiroba in a (2× 2 × 2) factorial experiment arranged in a randomized complete block design (RCBD) with three replications. Data collected were all variable costs for the inputs applied oneach weed control treatment combination, costs of cassava harvest and the price of cassava per one kilogram. Data were subjected to benefit-cost ratio analysis. Results revealed that, at Mkuranga site, till × Oxfen × Force up and till × Primagram × Force up treatment combinations had high benefit cost ratio of 2.39 and 2.04 respectively while at Integrated weed Kilosa site, only Till and Rigde × Oxfen × Force up treatment combination had high benefit cost ratio of 2.31. These high benefit cost ratios indicate feasibility of using
control option(s), Benefit cost respective weed control combinations in cassava production. Therefore, good farm
ratio. preparation, the use of Oxyfluorfen 24% EC herbicides as pre-emergence herbicide and -1 480 g L of Glyphosate-Isopropylamine salt as post emergence weed control treatments
are recommended in cassava production systems.
Description
Research article
Keywords
Cost-Benefit Analysis, Weed Control, Cassava Production System