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Control of annual meadow grass with direct drilling of grassland

, : Control of annual meadow grass with direct drilling of grassland. Jaarverslag, Proefstation voor de Rundveehouderij, Schapenhouderij en Paardenhouderij: 38-41

In trials on clay soil and sedge peat soil assessed in May and June 1984, resp., direct drilling of grass into swards killed with desiccant gave 63 and 56% Lolium perenne and 37 and 41% Poa annua in swards on the 2 soil types, resp., where no additional herbicide was used, and 94 and 86% L. perenne and 1 and 13% P. annua where 5 litres Tramat (ethofumesate)/ha was applied at drilling and 2.5 litres/ha in spring; similar results were obtained where the autumn application was delayed until L. perenne had 3-4 leaves. In further trials in 1985-86 on clay soil and sandy soil, populations of P. annua were low and treatment had little effect on yield and none on digestibility or nutritive value.

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Related references

Swift, G.; Whytock, G.P.; Younie, D.; Davies, D.H.K., 1991: The control of annual meadow grass in grassland. The following physical, cultural and chemical measures are recommended for the control of annual meadow grass (Poa annua) in grass/clover swards. The best means of control when establishing swards is to use fine, firm and fertile seedbeds in order...

Barber, D.D.; Greenwood, M.; Green, R.; Savours, D.; Serubula, J., 1978: Direct drilling grass in chemically destroyed grassland. In the second year of the experiment reported in WA 27, 2539, glyphosate at 1.8 kg/ha (the higher rate tested) was required for complete sward destruction. Three direct drills were compared for sowing ryegrass; of these the Moore Uni-Drill appeare...

Younie D.; Wilson J.F.; Carr G., 1984: Effects of application strategy of ethofumesate on control of annual meadow grass poa annua in young rye grass lolium spp swards. Annals of Applied Biology 104(SUPPL): 76-77

Chardin, B.T. de, 1984: Direct drilling of grassland: preparatory weed control. The need for complete destruction of the previous vegetation in order to establish a satisfactory new pasture is discussed and the characteristics, mode of action and opt. date of application of the 3 chemicals available for complete control: para...

Watschke, T.L., 1973: Annual meadow-grass control. A spring application of Po-san (chlorfluorinal plus maleic hydrazide) proved more effective than later treatments in inhibiting seed-head formation in Poa annua growing in turf, and also caused less grass discoloration. In autumn trials with Po-sa...

Goss, R.L.; Zook, F., 1971: New approach to annual meadow-grass control. See also WA 21, 2933. Trials were carried out over 2 years with the growth retardant Po-San [chlorflurecol methyl ester 8.5% + flurecol methyl ester 2.3% + methyl 2,7-dichloro-9-hydroxyfluorene-9-carboxylate] in Washington and Oregon. Two quarts/a...

Goss, R.L., 1965: Pre-emergence control of annual meadow-grass. Experiments were carried out under an air-supported plastic greenhouse on 1 ft square plots sown with annual meadow-grass ], the plots being pre-treated with various chemicals 1 day or 3, 6 or 9 weeks before sowing.

Gibeault, V.A., 1966: Investigations on the control of annual meadow-grass. The literature on annual meadow-grass, Poa annua, and its many varieties and synonyms is reviewed in some detail, as are the factors affecting its growth and seed production. When Bromacil was applied to a prepared seed-bed at 0.8 Ib. a.i./acre an...

Escritt, J.R.; Legg, D.C., 1968: Investigations on annual meadow-grass control. Reports are given on trials with 24 chemicals for the control of Poa annua by pre-seeding seed bed treatment (including soil sterilization), preventive treatment applied to fine turf swards and selective control in infested swards. Quite promising...

Bonin, L., 2004: Weed control without ureas: example of annual meadow grass. Urea herbicides (isoproturon and chlortoluron [chlorotoluron]) are largely used in cereals. However, the analysis of the quality of water of certain basins shows levels of active ingredients higher than the allowable limit of 0. 1 micro g/litre. I...