Effects of integrated weed management on tuber yield of cassava (Manihot esculenta Crantz)
Journal Title: Journal of Research in Weed Science - Year 2019, Vol 2, Issue 1
Abstract
Field experiments were conducted in 2012 and 2013 at the Teaching and Research Farm of the University of Calabar, Cross River State, Nigeria to determine the effectiveness of integration of Fitsextra® (a solution containing Atrazine and Metolachlor herbicides as active ingredients), egusi melon and hand-weeding on weed management and tuber yield of cassava. The twelve treatments which involved individual and combinations of the above mentioned weed control methods were laid out in a randomized complete block design and replicated three times. Irrespective of the method adopted, weeding depressed weed density by 57.33 % and 63.99 % in 2012 and 2013, respectively and weed biomass by 81.00 % and 79.64 % within the same period compared with the unweeded check. Integration of Fitsextra with egusi melon and/or hand-weeding significantly (P<0.05) suppressed weeds more than the sole use of Fitsextra® or egusi melon. Integration of hand-weeding with Fitsextra and/or egusi melon reduced weed dry matter by 43.46, 87.25, 92.34 and 93.51 % in 2012, and by 53.20, 90.20, 94.61 and 94.56 % in 2013 compared with hand-weeding alone, Fitsextra alone, egusi melon alone and no weeding, respectively. Plots that were hand-weeded thrice and those treated with Fitsextra + hand-weeding twice significantly (P<0.05) produced the highest fresh tuber yield of 9.73 and 10.23 t/ha, respectively in 2013. No weeding reduced cassava tuber yield by 4.83 t/ha (84.89 %) on a 2-year average, compared with the weeded plots. Conclusively, the results indicated that, three hand-weeding optimized cassava tuber yield, however, the integration of Fitsextra or egusi melon can effectively replace the first hand-weeding.
Authors and Affiliations
Francis A Nwagwu, I. Asukwo Udo
Keywords
Related Articles
- EP ID EP442080
- DOI 10.26655/JRWEEDSCI.2019.1.1
- Views 143
- Downloads 0
Assessment of different weed management practices in yield and yield attributes in summer maize in inner Terai of Nepal
The experiment was conducted in farmer field with farmer managed in Randomized Complete Block Design (RCBD) with three treatments and seven replications. The treatments were weed management practices including (i) Farmer...
Seasonal Changes in Soluble Carbohydrates of Russian Knapweed’s Rhizomes
The soluble carbohydrates play a major role in germination, growth, reproduction, defense and survival of perennial plant species reproducing with rhizomes under normal and adverse environmental conditions. The informati...
Relative phytotoxicity of stem and root aqueous extracts of Parthenium hysterophorus L. on Cicer aeritinum
The present study was conducted to evaluate the relative phytotoxic effects of different concentrations (15, 25, 50, 75 and 100%) of aqueous extract from stem and root of Parthenium hysterophorus on the rate of seed germ...
Positive aspects of weeds as herbal remedies and medicinal plants
The weeds are well accepted source of herbal medicines. However, these plants should be managed and removed from agro ecosystems due to their negative impacts on agricultural production systems. However, it is matter of...
Effects of integrated weed management on tuber yield of cassava (Manihot esculenta Crantz)
Field experiments were conducted in 2012 and 2013 at the Teaching and Research Farm of the University of Calabar, Cross River State, Nigeria to determine the effectiveness of integration of Fitsextra® (a solution contain...