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Nicosulfuron is a new alternative herbicide for post-emergence control of perennial weeds in maize. Field studies were conducted to evaluate the response of four maize cultivars (Low-N-Pool, TZB-SR, Oba Super-1 and Oba Super-2) and speargrass to different rates of nicosulfuron (35, 70, and 105 g ...


Lum, A.F.Chikoye, D.Adesiyan, S.O.[Evaluation of nicosulfuron for control of speargrass (Imperata cylindrica) in Nigeria]Evaluation of nicosulfuron for control of speargrass (Imperata cylindrica) in Nigeria

The composition and pattern of weed flora in arable fields are determined by their seedbank structure; but the influence of fallow management practices on weed seedbank structure is presently unknown. The objective of this study was to investigate weed seedbank characteristics and weed population...


Akobundu, I.O.Ekeleme, F.[Weed seedbank characteristics of arable fields under different fallow management systems in the humid tropical zone of southeastern Nigeria]Weed seedbank characteristics of arable fields under different fallow management systems in the humid tropical zone of southeastern Nigeria

Two sets of on-farm trials, each covering two years, were conducted in the northern Guinea savannah of Nigeria over the period 1999–2001, the objective being to compare integrated Striga hermonthica control measures (soybean or cowpea trap crops followed by maize resistant to Striga) with farmers...


Ellis-Jones, J.Schulz, S.Douthwaite, BoruHussaini, M.A.Oyewole, B.D.Olanrewaju, A.S.White, R.[An assessment of integrated Striga hermonthica control and early adoption by farmers in northern Nigeria]An assessment of integrated Striga hermonthica control and early adoption by farmers in northern Nigeria

Yam was intercropped with maize, okra, and sweet potato and subjected to various periods of weed interference and weed-free regimes. The field trials were conducted for two cropping seasons at the research farm of the National Root Crops Institute, Umudike, Nigeria, 5° 29' N latitude and 7° 32' E...


Orkwor, G.Okereke, O.Ezedinma, C.Hahn, S.Ezumah, H.Akobundu, I.[Response of yam (Dioscorea rotundata Poir.) to various periods of weed interference in an intercropping with maize (Zea mays L.), okra (Abelmoschus esculentus L. Moench), and sweet potato (Ipomoea batatas L. Lam)]Response of yam (Dioscorea rotundata Poir.) to various periods of weed interference in an intercropping with maize (Zea mays L.), okra (Abelmoschus esculentus L. Moench), and sweet potato (Ipomoea batatas L. Lam)
Doll, Jerry D.[Weed science at CIAT (Centro Internacional de Agricultura Tropica) and weed problems in Latin America]Weed science at CIAT (Centro Internacional de Agricultura Tropica) and weed problems in Latin America

In this study a new formulation of EPTC, the new products glyphosate and napropamide and high rates of butilate, vernolate and EPTC were tested in purple nutsedge (Cyperus rotundus L.). The slow release formulation of EPTC was more persistant than the regular EPTC. High rates (16 kgia/ha) of the ...


Piedrahíta Castañeda, WilsonDoll, Jerry D.[Aspectos recientes en el control del coquito (Cyperus rotundus L.)]Aspectos recientes en el control del coquito (Cyperus rotundus L.)

Some of the differences and similarities between the extension service agronomists and those of technical assistance were compared. Important differences in percent of time dedicated to weed control, sources of information and the importance that the farmers of each group assign to weed control w...


Doll, Jerry D.[La extensión agrícola y la asistencia técnica en el control de malezas en Colombia]La extensión agrícola y la asistencia técnica en el control de malezas en Colombia

Cutting sedge (Scleria pterota Presl.) is a common weed in pastures. It grows vigorously and forms patches in poorly drained soils and appears uniformly dispursed in pastures on rolling land. It is unpalatable to cattle and is extremely competitive with pasture species. It was found that both diu...


Argel M., Pedro J.Doll, Jerry D.[Control de cortadera (Scleria pterota Presl.) y establecimiento de pasto]Control de cortadera (Scleria pterota Presl.) y establecimiento de pasto
Doll, Jerry D.Piedrahíta Castañeda, Wilson[Effect of glyphosate on the sprouting of Cyperus rotundus L. tubers]Effect of glyphosate on the sprouting of Cyperus rotundus L. tubers

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