Six field trials were conducted over a four-year (2017-2020) period near Exeter and Ridgetown, Ontario to determine the efficacy of halosulfuron tankmixes applied postemergence to control broadleaf weeds in white bean...Six field trials were conducted over a four-year (2017-2020) period near Exeter and Ridgetown, Ontario to determine the efficacy of halosulfuron tankmixes applied postemergence to control broadleaf weeds in white bean. Halosulfuron caused up to 4% injury in white bean at 2 and 4 weeks after treatment (WAT). Bentazon, acifluorfen, fomesafen, bentazon/acifluorfen, and bentazon + fomesafen caused 2% - 16% injury at 2 WAT and up to 3% injury at 4 WAT in white bean. The addition of halosulfuron to the aforementioned herbicides did not accentuate white bean injury. Reduced weed interference with the herbicides evaluated increased white been yield 50% - 90% compared to the weedy control;there was no difference in seed yield among herbicide treatments evaluated. At 4 WAT, halosulfuron at 25, 37.5 and 50 g ai ha-1 controlled velvetleaf 86%, 93% and 97%;redroot pigweed 83%, 85% and 89%;common ragweed 90%, 93% and 94%;common lambsquarters 27%, 28% and 36%;flower-of-an-hour 66%, 76% and 69%;and wild mustard 100%, 100% and 100%, respectively. Bentazon, acifluorfen, fomesafen, bentazon/acifluorfen, and bentazon + fomesafen controlled velvetleaf 73%, 14%, 52%, 42% and 68%;redroot pigweed 40%, 91%, 85%, 75% and 80%;common ragweed 36%, 81%, 92%, 68% and 84%;common lambsquarters 87%, 39%, 48%, 60% and 76%;flower-of-an-hour 90%, 66%, 63%, 73% and 83%;and wild mustard 97%, 97%, 100%, 99% and 100%, respectively. Halosulfuron tankmixed with bentazon, acifluorfen, fomesafen, bentazon/acifluorfen or bentazon + fomesafen controlled velvetleaf 90%, 51%, 68%, 75% and 90%;redroot pigweed 80%, 99%, 95%, 92% and 91%;common ragweed up to 94%, 97%, 93%, 94% and 95%;common lambsquarters 74%, 62%, 43%, 62% and 66%;flower-of-an-hour 92%, 78%, 74%, 82% and 87%;and wild mustard 100%, 100%, 100%, 100% and 100%, respectively. Weed density and dry biomass followed the same trend. This study concludes that the optimal halosulfuron tankmix is broadleaf weed species specific for weed management in dry bean production.展开更多
This study assessed some problems affecting sports development among youths in the Niger-Delta region of Nigeria. Survey design was utilized for this study： The population comprised of youths in the Niger-Delta regio...This study assessed some problems affecting sports development among youths in the Niger-Delta region of Nigeria. Survey design was utilized for this study： The population comprised of youths in the Niger-Delta region. Samples of 200 youths were studied. Four hypotheses were formulated to guide the study. Data were collated using a structured validated and reliability certified questionnaire. Data generated revealed that poor funding, mode of organization, poor incentives and parental approach have significant influence with sports development among youths in the Niger-Delta region of Nigeria. Some recommendations made include： the need for the government to increase the budgetary allocations for sports in the region, provision of adequate sports facilities and equipment and of course making physical education and sports as a compulsory subject in the school curriculum for primary and secondary schools in the region.展开更多
文摘Six field trials were conducted over a four-year (2017-2020) period near Exeter and Ridgetown, Ontario to determine the efficacy of halosulfuron tankmixes applied postemergence to control broadleaf weeds in white bean. Halosulfuron caused up to 4% injury in white bean at 2 and 4 weeks after treatment (WAT). Bentazon, acifluorfen, fomesafen, bentazon/acifluorfen, and bentazon + fomesafen caused 2% - 16% injury at 2 WAT and up to 3% injury at 4 WAT in white bean. The addition of halosulfuron to the aforementioned herbicides did not accentuate white bean injury. Reduced weed interference with the herbicides evaluated increased white been yield 50% - 90% compared to the weedy control;there was no difference in seed yield among herbicide treatments evaluated. At 4 WAT, halosulfuron at 25, 37.5 and 50 g ai ha-1 controlled velvetleaf 86%, 93% and 97%;redroot pigweed 83%, 85% and 89%;common ragweed 90%, 93% and 94%;common lambsquarters 27%, 28% and 36%;flower-of-an-hour 66%, 76% and 69%;and wild mustard 100%, 100% and 100%, respectively. Bentazon, acifluorfen, fomesafen, bentazon/acifluorfen, and bentazon + fomesafen controlled velvetleaf 73%, 14%, 52%, 42% and 68%;redroot pigweed 40%, 91%, 85%, 75% and 80%;common ragweed 36%, 81%, 92%, 68% and 84%;common lambsquarters 87%, 39%, 48%, 60% and 76%;flower-of-an-hour 90%, 66%, 63%, 73% and 83%;and wild mustard 97%, 97%, 100%, 99% and 100%, respectively. Halosulfuron tankmixed with bentazon, acifluorfen, fomesafen, bentazon/acifluorfen or bentazon + fomesafen controlled velvetleaf 90%, 51%, 68%, 75% and 90%;redroot pigweed 80%, 99%, 95%, 92% and 91%;common ragweed up to 94%, 97%, 93%, 94% and 95%;common lambsquarters 74%, 62%, 43%, 62% and 66%;flower-of-an-hour 92%, 78%, 74%, 82% and 87%;and wild mustard 100%, 100%, 100%, 100% and 100%, respectively. Weed density and dry biomass followed the same trend. This study concludes that the optimal halosulfuron tankmix is broadleaf weed species specific for weed management in dry bean production.
文摘This study assessed some problems affecting sports development among youths in the Niger-Delta region of Nigeria. Survey design was utilized for this study： The population comprised of youths in the Niger-Delta region. Samples of 200 youths were studied. Four hypotheses were formulated to guide the study. Data were collated using a structured validated and reliability certified questionnaire. Data generated revealed that poor funding, mode of organization, poor incentives and parental approach have significant influence with sports development among youths in the Niger-Delta region of Nigeria. Some recommendations made include： the need for the government to increase the budgetary allocations for sports in the region, provision of adequate sports facilities and equipment and of course making physical education and sports as a compulsory subject in the school curriculum for primary and secondary schools in the region.
