| Variation in needle and cone characteristics and seed germination ability of Abies bornmuelleriana and Abies equi-trojani populations from Turkey Y Kurt, J Frampton, F Isik, C Landgren, G Chastagner Turkish Journal of Agriculture and Forestry 40 (2), 169-176, 2016 | 16 | 2016 |
| Christmas tree nutrient management guide: western Oregon and Washington JM Hart, CG Landgren, RA Fletcher, MC Bondi, BA Whithrow-Robinson, ... Corvallis, Or.: Extension Service, Oregon State University, 2009 | 13 | 2009 |
| Weed and vegetation management strategies in Christmas trees RE Peachey, CG Landgren, TW Miller Oregon State University, 2017 | 8 | 2017 |
| Planning across generations: helping family landowners maintain their ties to the land. B Withrow-Robinson, SB Allred, C Landgren, M Sisock | 8 | 2013 |
| Development of an inventory management tool using visual imagery from a multirotor aerial platform J Robbins, J Owen, D Saraswat, R Ehsani, J Maja, H Stoven, C Landgren, ... Proc. of the Southern Nursery Association Annual Research Conf 57, 8-12, 2011 | 7 | 2011 |
| Calibrating and using backpack sprayers CG Landgren | 7 | 1996 |
| Genetic variation and the influence of fertilization on the development of current season needle necrosis on noble fir Christmas trees GA Chastagner, C Landgren Foliage, shoot and stem diseases of trees. Proceedings of the IUFRO WP 7.02 …, 1997 | 6 | 1997 |
| Ties to the land: Your family forest heritage CJ Bentz, M Green, R Irvin, C Landgren, C Lynch, S Watkins, ... Oregon State University, Corvallis, OR, 2006 | 5 | 2006 |
| Growing Christmas trees in the Pacific Northwest CG Landgren, RA Fletcher, MC Bondi, DL Barney, RL Mahoney | 5 | 2003 |
| Evaluating Soil and Foliar Fertilization of Abies nordmanniana Under Container and Field Production C Landgren, JS Owen Jr, R Contreras Scandinavian Journal of Forest Research 28 (5), 419-427, 2013 | 4 | 2013 |
| Selecting and buying quality seedlings RE Duddles, CG Landgren | 4 | 1993 |
| The influence of needle location and sampling technique on nutrient concentration. J Hart, C Landgren, R Fletcher, JT Moody, M Bondi | 3 | 2010 |
| Taxes and assessments on Oregon forestland and timber NE Elwood, NA Miller, CG Landgren | 3 | 2006 |
| Developing high quality true fir Christmas trees. CG Landgren, BS Douglass | 3 | 1992 |
| Thin-line treatment of red alder. DE Hibbs, CG Landgren | 3 | 1987 |
| Controlling leader growth on noble and Turkish Fir with S-ABA C Landgren, B Cregg, R Rouse, J Kowalski Forests 13 (2), 212, 2022 | 2 | 2022 |
| Developing Quality Christmas Trees in the Pacific Northwest CG Landgren Oregon State University Extension Service, 2016 | 2 | 2016 |
| Needle collection time for nutrient evaluation in christmas tree production JM Hart, CG Landgren, JT Moody, RA Fletcher, DA Horneck Communications in soil science and plant analysis 43 (1-2), 471-477, 2012 | 2 | 2012 |
| Douglas-fir Christmas trees in Oregon and Washington MC Bondi, RA Fletcher, J Hart, D Horneck, C Landgren, S Webster Fertilizer guide (Corvallis, Or.)(USA), 1994 | 2 | 1994 |
| Developing sheared Douglas-fir Christmas trees WM Proebsting PNW bulletin-Pacific Northwest Extension Publication, Washington, Oregon …, 1987 | 2 | 1987 |
