Items where Author is "Lester, David W."

2024

Flavel, R., Birchall, C., Buster, M., Guppy, C., Lester, D. W., Silburn, C. and McKenzie, D. (2024) Soil constraints project - an update on the economic response of long term soil amelioration strategies. GRDC Update .

2023

Lester, D. W., Aisthorpe, D., Bell, L. W., Sands, D. J., Lawrence, D. and Bell, M. J. (2023) Nitrogen cycling and management decision making in Central Queensland farming systems – N availability and recovery across the farming system – N impacts on productivity – implications for management in CQ. GRDC Update .

2022

Lester, D. W., Silburn, C., Birchall, C., Flavel, R., Guppy, C., Bennett, J., Robertson, S. and McKenzie, D. (2022) Ameliorating sodicity; what did we learn about ameliorating sodicity constraints with a range of treatments? Yield responses to ripping, gypsum and OM placement in constrained soils. GRDC Update .

Lester, D. W., Sands, D. J. and Bell, M. J. (2022) Deep P and K - Outcomes from 8+ years of research: the good, the bad and the ugly. GRDC Update .

Bell, M. J., Sands, D. J. and Lester, D. W. (2022) Deep P bands – the solution to subsoil decline or just a useful supplement? In: Proceedings of the 20th Agronomy Australia Conference, 2022, 6 - 10 February 2022, Toowoomba Qld.

Bell, M., Raymond, N., Kopittke, P., Janke, C. and Lester, D. W. (2022) P dynamics in vertosols-factors influencing fertiliser P availability over time and the implications for rate, application method and residual value. Grains Research Update . p. 51.

Raymond, N., Kopittke, P. M., Van der Bom, F., Lester, D. W., Wang, E. and Bell, M. J. (2022) Phosphorus dynamics in Vertosols: improving fertilizer management. In: Proceedings of the 20th Agronomy Australia Conference, 2022, 6 - 10 February 2022, Toowoomba Qld.

Rowlings, D. W., Lester, D. W., Grace, P. R., Scheer, C., De Rosa, D., De Antoni Migliorati, M., Friedl, J. and Bell, M. J. (2022) Seasonal rainfall distribution drives nitrogen use efficiency and losses in dryland summer sorghum. Field Crops Research, 283 . p. 108527. ISSN 0378-4290

Das, B. T., Schmidt, S., Biggs, J., Lester, D. W., Bourne, N. and Huth, N. I. (2022) Simulating long-term nutrient dynamics to better assess soil fertility in subtropical cropping. In: TropAg 2022 International Agriculture Conference, 31 October - 2 November 2022, Brisbane, Australia.

Das, B. T., Schmidt, S., Biggs, J., Lester, D. W., Bourne, N. and Huth, N. I. (2022) Simulating long-term phosphorus, nitrogen, and carbon dynamics to advance nutrient assessment in dryland cropping. Field Crops Research, 285 . p. 108590. ISSN 0378-4290

2021

Raymond, N., Kopittke, P. M., Wang, E., Lester, D. W. and Bell, M. J. (2021) Does the APSIM model capture soil phosphorus dynamics? A case study with Vertisols. Field Crops Research, 273 . p. 108302. ISSN 0378-4290

2020

Sands, D. J., Bell, M. J. and Lester, D. W. (2020) Fine tuning deep phosphorus and potassium management. GRDC Update . pp. 1-17.

Bell, M. J., Lester, D. W. and Sands, D. J. (2020) Nutritional strategies to support productive farming systems. GRDC Update .

Bell, M. J., Lester, D. W. and Sands, D. J. (2020) Strategies to improve efficiency of use of applied N, P and K fertiliser in Central Queensland. GRDC Update . pp. 1-12.

2019

Sandral, G., Tavakkoli, E., Barati, M., Pumpa, R., Armstrong, R., Lester, D. W., Mason, S., Norton, R. and Bell, M. (2019) Phosphorus and phosphorus stratification. GRDC Update .

2017

Hagan, J. M., Lester, D. W. and Zull, A. F. (2017) A summary of the economics of deep P nutrition trials in the northern grains region: where have current trials provided economic benefits? Technical Report. GRDC, Goondiwinidi, Qld.

Lester, D. W., Bell, M., Sands, D. and Weaver, T. (2017) Cereal and legume crop responses to deep-placed K with and without P in NE Australian Vertosols. In: Frontiers of Potassium Science Conference, 25-27 January 2017, Rome, Italy.

Bell, M. J., Sands, D. J., Lester, D. W. and Norton, R. M. (2017) Deep banding P improves access to K in central Queensland cropping systems. In: Frontiers of Potassium Science, Rome, Italy.

Bell, M. J., Lester, D. W., Schwenke, G. D., Weaver, T. B. and Moody, P. W. (2017) Deep placement of nutrients (2015-2019) - [presentation]. More Profit from Crop Nutrition II .

Bell, M. J. and Lester, D. W. (2017) In a soil pit... In: A crop and pasture nutrition field day, "Amaroo" Roma.

Lester, D. W. and Bell, M. J. (2017) Mixed results on grain yield responses to deep-placement of P in southern Queensland. In: 18th Australian Society of Agronomy Conference, Ballarat, Australia.

Bell, M. J., Lester, D. W., Sands, D. J., Graham, R., Weaver, T. B. and Moody, P. W. (2017) Regional soil testing guidelines for the northern grains region (P, K and S) [presentation]. More Profit from Crop Nutrition II .

2016

Lester, D. W., Bell, M. J., Bell, K. L., De Antoni Migliorati, M., Scheer, C., Rowlings, D. and Grace, P. R. (2016) Agronomic responses of grain sorghum to DMPP-treated urea on contrasting soil types in north-eastern Australia. Soil Research, 54 (5). pp. 565-571.

De Antoni Migliorati, M., Bell, M., Lester, D. W., Rowlings, D. W., Scheer, C., de Rosa, D. and Grace, P. R. (2016) Comparison of grain yields and N2O emissions on Oxisol and Vertisol soils in response to fertiliser N applied as urea or urea coated with the nitrification inhibitor 3,4-dimethylpyrazole phosphate. Soil Research, 54 (5). pp. 552-564.

Scheer, C., Rowlings, D. W., De Antoni Migliorati, M., Lester, D. W., Bell, M. J. and Grace, P. R. (2016) Effect of enhanced efficiency fertilisers on nitrous oxide emissions in a sub-tropical cereal cropping system. Soil Research, 54 (5).

Bell, M. J., Schwenke, G. D. and Lester, D. W. (2016) Minimising nitrogen losses to improve use efficiency in summer crops. In: GRDC Grower Update - 2016, Toowoomba (Wellcamp) and Chinchilla.

Lester, D. W., Bell, M. J., Graham, R., Sands, D. and Brooke, G. (2016) Phosphorus and potassium nutrition. In: GRDC Adviser Update - 2016, 8 March 2016, Goondiwindi.

Bell, M. J., Schwenke, G. D., Lester, D. W., Bell, M. J. and Schwenke, G. D. (2016) Understanding & managing N loss pathways : Minimising nitrogen losses to improve use efficiency in summer crops. In: GRDC Adviser Update - 2016, GoondiwindiToowoomba (Wellcamp) and Chinchilla.

2015

Lester, D. W. and Bell, M. (2015) Cotton root systems and recovery of applied P and K fertilisers. In: 2nd Australian Cotton Research Conference, Toowoomba Qld 4350.

Bell, M., Lester, D. W., De Antoni Migliorati, M., Rowlings, D. W. and Grace, P. R. (2015) Nitrogen use efficiency in summer sorghum grown on clay soils. In: 17th Australian Agronomy Conference, Hobart, Tasmania.

Bell, M., Sands, D., Lester, D. W. and Norton, R. (2015) Response to deep placed P, K and S in central Queensland. In: 17th Australian Agronomy Conference, Hobart, Tasmania.

2010

Lester, D. W., Birch, C.J. and Dowling, C.W. (2010) Fertiliser N and P application on two Vertosols in north-eastern Australia. 3. Grain N uptake and yield by crop/fallow combination, and cumulative grain N removal and fertiliser N recovery in grain. Crop & Pasture Science, 61 (1). pp. 24-31. ISSN 1836-0947