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Walker, S. R. and Blacklow, W. M. (1994) Adsorption and degradation of triazine herbicides in soils used for lupin production in Western Australia: Laboratory studies and a simulation model. Australian Journal of Soil Research, 32 6: 1189-1205. doi:10.1071/SR9941189c 36   22 Cited 23 times in Scopus23 0
Robinson, G. R., Wills, D. A., Walker, S. R. and Adkins, S. W. (1999). An appraisal for alternative strategies for managing herbicide-resistant weeds. In: A. C. Bishop, M. Boersma and C. D. Barnes, 12th Australian Weeds Conference: Papers and Proceedings : Weed Management into the 21st Century: Do We Know Where We're Going?. Twelfth Australian Weeds Conference, Hobart, Tasmania, Australia, (227). 12-16 September 1999. 53  
Tsubo, M., Walker, S. R. and Ogindo, H. (2005) A simulation model of cereal-legume intercropping systems for semi-arid regions II. Model application. Field Crops Research, 93 1: 23-33. doi:10.1016/j.fcr.2004.09.003 244   15 Cited 22 times in Scopus22 0
Tsubo, M., Walker, S. R. and Ogindo, H. O. (2005) A simulation model of cereal-legume intercropping systems for semi-arid regions I. Model development. Field Crops Research, 93 1: 10-22. doi:10.1016/j.fcr.2004.09.002 310   15 Cited 23 times in Scopus23 0
Walker, S. R., Taylor, I. N., Milne, G., Osten, V. A., Hoque, Z. and Farquharson, R. J. (2005) A survey of management and economic impact of weeds in dryland cotton cropping systems of subtropical Australia. Australian Journal of Experimental Agriculture, 45 1: 79-91. doi:10.1071/EA03189 39   21 Cited 20 times in Scopus20 0
Adkins, S. W. and Walker, S. R. (2000). Challenges and future approaches to weed management. In Brian M. Sindel (Ed.), Australian Weed Management Systems 1st ed. (pp. 481-497) Melbourne: R. G. & F. J. Richardson. 42  
Walker, S.R. and Robinson, G.P. (1996) Chlorsulfuron residues are not accumulating in soils of southern Queensland. Australian Journal of Experimental Agriculture, 36 2: 223-228. doi:10.1071/EA9960223 22   9 Cited 9 times in Scopus9 0
Walker, S.R., Barnes, J.E., Osten, V.A., Churchett, J.D. and McCosker, M. (2000) Crop responses to sulfonylurea residues in soils of the subtropical grain region of Australia. Australian Journal of Agricultural Research, 51 5: 587-596. doi:10.1071/AR99040 40   5 Cited 5 times in Scopus5 0
Lemerle, D., Gill, G. S., Murphy, C. E., Walker, S. R., Cousens, R. D., Mokhtari, S., Peltzer, S. J., Coleman, R. and Luckett, D. J. (2001) Genetic improvement and agronomy for enhanced wheat competitiveness with weeds. Australian Journal of Agricultural Research, 52 5: 527-548. doi:10.1071/AR00056 68   106 Cited 104 times in Scopus104 0
Widderick, M.J., Walker, S.R., Sindel, B.M. and Bell, K.L. (2010) Germination, emergence, and persistence of Sonchus oleraceus, a major crop weed in subtropical Australia. Weed Biology and Management, 10 2: 102-112. doi:10.1111/j.1445-6664.2010.00370.x 53   3 Cited 3 times in Scopus3 0
O'Donnell, C., Adkins, S. W. and Walker, S. R. (2002). Herbicide resistance in the northern grain region of Australia: developments in research from 1993 to present. In: H. Spafford Jacob, J. Dodd and J.H. Moore, 13th Australian Weeds Conference Papers & Proceedings. 13th Australian Weeds Conference, Perth, W.A./Sheraton Perth Hotel, (617-619). 8-13 September, 2002. 30  
Walker, S. R., Medd, R. W., Robinson, G. R. and Cullis, B. R. (2002) Improved management of Avena ludoviciana and Phalaris paradoxa with more densely sown wheat and less herbicide. Weed Research, 42 4: 257-270. doi:10.1046/j.1365-3180.2002.00283.x 22   36 Cited 36 times in Scopus36 0
Walker, S. R., Marley, J. M. T., Robinson, G. R. and Hargreaves, P. A. (1994) Initial activity of atrazine and chlorsulfuron residues is greater in the grey clays than in the black earths of southern Queensland. Australian Journal of Experimental Agriculture, 34 1: 67-73. doi:10.1071/EA9940067 28   8 Cited 8 times in Scopus8 0
Walker, S. R., Robinson, G. R. and Medd, R. W. (2001) Management of Avena ludoviciana and Phalaris paradoxa with barley and less herbicide in subtropical Australia. Australian Journal of Experimental Agriculture, 41 8: 1179-1185. doi:10.1071/EA01002 30   8 Cited 9 times in Scopus9 0
Walker, S. R. and Blacklow, W. M. (1995) Movement and persistence of triazine herbicides in soils used for lupin production in Western-Australia - Field-measurements and interpretations with the aid of a simulation-model. Australian Journal of Soil Research, 33 5: 773-786. doi:10.1071/SR9950773 34   5 0
Jettner, R. J., Walker, S. R., Churchett, J. D., Blamey, F. P. C., Adkins, S. W. and Bell, K. (1999) Plant sensitivity to atrazine and chlorsulfuron residues in a soil-free system. Weed Research, 39 4: 287-295. doi:10.1046/j.1365-3180.1999.00145.x 72   12 Cited 12 times in Scopus12 0
Osten, V. A. and Walker, S. R. (1998) Recropping intervals for sulfonylurea herbicides are short in the semi-arid subtropics of Australia. Australian Journal of Experimental Agriculture, 38 1: 71-76. doi:10.1071/EA97055 31   3 Cited 3 times in Scopus3 0
Dang Y.P., Moody P.W., Bell M.J., Seymour N.P., Dalal R.C., Freebairn D.M. and Walker S.R. (2014) Strategic tillage in no-till farming systems in Australia's northern grains-growing regions: II. Implications for agronomy, soil and environment. Soil and Tillage Research, . doi:10.1016/j.still.2014.12.013 29   Cited 0 times in Scopus0 0
Osten, V. A., Walker, S. R., Storrie, A., Widderick, M., Moylan, P., Robinson, G. R. and Galea, K. (2007) Survey of weed flora and management relative to cropping practices in the north-eastern grain region of Australia. Australian Journal of Experimental Agriculture, 47 1: 57-70. doi:10.1071/EA05141 34   21 Cited 22 times in Scopus22 0
Walker, S. R., Osten, V. A., Lack, D. W. and Broom, L. (1992) The responses of sorghum and sunflowers to 2,4-D and dicamba residues in clay soils in central Queensland. Australian Journal of Experimental Agriculture, 32 2: 183-187. doi:10.1071/EA9920183 40   1 Cited 1 times in Scopus1 0
Walker, S. R., Robinson, G. R. and Hargreaves, P. A. (1997) Weed control with atrazine and chlorsulfuron is determined by herbicide availability and persistence in soils. Australian Journal of Agricultural Research, 48 7: 1003-1009. doi:10.1071/A97027 33   10 Cited 12 times in Scopus12 0
Adkins, S. W., Wills, D., Boersma, M., Walker, S. R., Robinson, G., Mcleod, R. J. and Einam, J. P. (1997) Weeds resistant to chlorsulfuron and atrazine from the north-east grain region of Australia. Weed Research, 37 5: 343-349. doi:10.1046/j.1365-3180.1997.d01-56.x 42   22 Cited 21 times in Scopus21 0