Effect of integrated weed control options on growth and yield of cassava at Kilosa district, Tanzania
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Date
2023-12-25
Journal Title
Journal ISSN
Volume Title
Publisher
Society for Science and Education
Abstract
Weeds are among of the major pest that hinders cassava growth and production.
Also, weeds can host insect and disease pathogens, thus brings up difficulty in the
growth of cassava. The effect of different weed control treatment combinations was
studied at Ilonga village, Kilosa district during 2019/2020 planting season. 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 with modified tines were tested on Cassava variety Kiroba in a factorial
experiment arranged in a randomized complete block design (RCBD) replicated
three times. Combination of tillage practices and pre-emergence herbicides
application increased number of days weeds took to re-emerge. The correlation
analysis showed a highly significant strong positive relationship, r = 0.925, p < 0.001
and r = 0.781, p < 0.05 between cassava stem height and cassava fresh root weight,
and cassava stem girth and cassava fresh root weight, respectively. Weed control
combinations did not significantly affect the cassava fresh root weight, p = 0.514
and cassava biomass p = 0.732. Also weed control combinations did not significantly
affect soil quality. The combination of till + ridges, application of S-metolachlor +
atrazine herbicides and glyphosate provided favorable environment for cassava
growth and root formation as compared to other treatment combinations.
Therefore, it is recommended as a best option for controlling weeds in cassava
production system.
Description
Research article
Keywords
Cassava, Weed control combination(s), Days after planting, Fresh root weight, Cassava biomass