Weed Management in Lawn (Cynodon dactylon L.) Calcutta grass var. Sel-1
| dc.contributor.advisor | Dubey, R. K. | |
| dc.contributor.author | Amrinder Singh | |
| dc.date.accessioned | 2019-01-24T09:10:32Z | |
| dc.date.available | 2019-01-24T09:10:32Z | |
| dc.date.issued | 2018 | |
| dc.description.abstract | Field experiment was conducted in the established lawn of PAU landscape nursery, Department of Floriculture and Landscaping, Punjab Agricultural University, Ludhiana during March to December 2017 to manage the sedge and broad leaf weeds in lawn. The experimental plot comprised of (Cynodon dactylon L.) Calcutta grass var. Sel-1. The experiment was laid out in Randomized Complete Block Design (RCBD) having eight treatments with three replications. The treatments were 2,4-D amine at 580 g ha-1, metsulfuron methyl + chlorimuron ethyl at 4 g ha-1, halosulfuron at 67.5 g ha-1, metsulfuron at 5 g ha-1, carfentrazone ethyl at 20 g ha-1, metsulfuron methyl + carfentrazone ethyl at 25 g ha-1, four hand weedings at 15 days interval and unweeded control. The predominant weed species noticed at experiment site were Anagalis arvensis, Coronopus didymus, Convolvulus arvensis, Malva parviflora, Medicago denticulata, Euphorbia microphylla, Melilotus indica, Rumex dentatus, Amaranthus viridis, Chenopodium album, Gomphrena celosioides, Phyllanthus niruri, Celosia argentea, Parthenium hysterophorus, Ageratum conyzoides, Bidens pilosa, Alternanthera philoxeroides,Euphorbia hirta, Oxalis martiana as broadleaf weeds and Cyperus rotundus as sedge.The results indicated that the number of sedge and broad leaf weeds were found to be significantly more in unweeded control. Among herbicide treatments, density of broad leaf weeds decreased to a greater extent in 2, 4-D amine at 580 g ha-1. Halosulfuron at 67.5 g ha-1 decreased weed density of sedge drastically as compared to other herbicides. The weed control efficiency recorded highest in hand weeding at every 15 days interval. Among the herbicides, 2, 4-D amine at 580 g ha-1 was recorded higher weed control efficiency and lower dry matter of weeds compared to other herbicide treatments in case of broadleaf weeds. Halosulfuron at 67.5 g ha-1 recorded the highest weed control efficiency and the lowest dry matter of sedge compared to other herbicide treatments. The nutrient uptake by weeds was higher in unweeded control as compared to all other treatments. The nutrient uptake by weeds was lower in 2, 4-D amine at 580 g ha-1 followed by metsulfuron methyl + carfentrazone ethyl at 25 g ha-1. Among the herbicide treatments saving in weeding cost over hand weeding (Rs.16755 ha-1) was recorded in 2,4-D amine at 580 g ha-1 which is performed significantly better than other herbicide treatments for control of broadleaf weeds. Saving in weeding cost over hand weeding (Rs.12605 ha-1) was recorded in halosulfuron at 67.5 g ha-1 which is performed significantly better than other herbicide treatments for control of sedge (Cyperus rotundus). So, 2, 4-D amine at 580 g ha-1 and halosulfuron at 67.5 g ha-1 were effective herbicides for management of broad leaf weeds and sedge in lawn respectively. | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810092301 | |
| dc.keywords | Weed management, Cynodon dactylon L., lawn, herbicides, nutrients, Calcutta grass | en_US |
| dc.language.iso | en | en_US |
| dc.pages | 95 | en_US |
| dc.publisher | Punjab Agricultural University, Ludhiana | en_US |
| dc.research.problem | Weed Management in Lawn (Cynodon dactylon L.) Calcutta grass var. Sel-1 | en_US |
| dc.sub | Floriculture and Landscaping | en_US |
| dc.subject | null | en_US |
| dc.theme | Weed Management in Lawn (Cynodon dactylon L.) Calcutta grass var. Sel-1 | en_US |
| dc.these.type | M.Sc | en_US |
| dc.title | Weed Management in Lawn (Cynodon dactylon L.) Calcutta grass var. Sel-1 | en_US |
| dc.type | Thesis | en_US |