Skip to main content

Journal Articles

Unfortunately, at this time we are unable to offer the journal articles for download due to copyright restrictions. Contact Quirine Ketterings at if you are interested in recieving a reprint of any of these articles. *(under)graduate student or NMSP staff.
1. Ketterings, Q.M., S. Cela., A.S. Collick, S.J. Crittenden, and K.J. Czymmek (2017). Restructuring the P Index to better address P management in New York. Journal of Environmental Quality (in press).
2. Crittenden, S., Q.M. Ketterings, and K.J. Czymmek (2017). Soil phosphorus saturation ratio sets comparable manure application cutoffs across states differing in agronomic soil test. Soil Science (in press).
3. Veltman, K., C.D. Jones, R. Gaillard, S. Cela, L. Chase, B. Duval., R.C. Izaurralde, Q.M. Ketterings, C. Li, M. Matlock, A. Reddy, A. Rotz, W. Salas, P. Vada, and O. Jolliet (2017). Comparison of process-based models to quantify nutrient flows and greenhouse gas emissions associated with milk production. Agriculture, Ecosystems and Environment 237: 31-44.
4. Cela, S., Q.M. Ketterings, M., Soberon, C. Rasmussen, and K.J. Czymmek (2017). Upper Susquehanna watershed and New York State improvements in nitrogen and phosphorus mass balances of dairy farms. Journal of Soil and Water Conservation 27:1-11. doi: 10.2489/jswc.72.1.1.
5. Tagarakis, A.C., Q.M. Ketterings, S. Lyons, and G. Godwin (2017). Proximal sensing to estimate yield of brown midrib forage sorghum. Agronomy Journal (in press). doi: 10.2134/agronj2016.07.0414
6. Sadeghpour, A., Q.M. Ketterings, G.S. Godwin, and K.J. Czymmek (2017). Under- or over-application of nitrogen impact corn yield, quality, soil, and environment. Agronomy Journal 109:1–11. doi: 10.2134/agronj2016.06.0355
7. Sadeghpour, A., Q.M. Ketterings, F. Vermeylen, G.S. Godwin, and K.J. Czymmek (2016). Soil properties under nitrogen- vs phosphorus-based manure and compost management of corn. Soil Science Society of America Journal 80:1272–1282. doi:10.2136/sssaj2016.03.0086
8. Van Almelo, J., Q.M. Ketterings, and S. Cela (2016) Integrating record keeping with whole farm nutrient mass balance: A case study. Journal of Agricultural Science 8: 22-32. DOI:
9. Cela, S., Q.M. Ketterings, K.J. Czymmek, J.L. Weld, D.B. Beegle, and P.J.A. Kleinman (2016). Nutrient management planners' feedback on New York and Pennsylvania phosphorus indices. Journal of Soil and Water Conservation 71: 281-288. DOI: 10.2489/jswc.71.4.281
10. Cherney, J.H, Q.M. Ketterings, and D.J. Cherney (2016). Soil contamination of grass biomass hay; measurements and implications. Bioenergy Research. DOI: 10.1007/s12155-016-9725-3.
11. McRoberts, K. Q.M. Ketterings, D. Parsons, T. Thanh Hai, N. Hai Quan, N. Xuan Ba, C.F. Nicholson and D.J. Cherney (2016). Impact of forage utilization with urea and composted cattle manure on soil fertility in sandy soils of south central Vietnam. International Journal of Agronomy.
12. Long, E., Q.M. Ketterings, D. Russell, F. Vermeylen, and S.D. DeGloria (2016). Assessment of yield monitoring equipment for dry matter and yield of corn silage and alfalfa/grass. Journal of Precision Agriculture. DOI: 10.1007/s11119-016-9436-y.
13. Long, E., and Q.M. Ketterings (2016). Factors of yield resilience under changing weather evidenced by a 14-years record of corn-hay yield in a 1000-cow dairy farm. Agronomy for Sustainable Development. DOI: 10.1007/s13593-016-0349-y.
14. Sadeghpour, A., Q.M. Ketterings, G. Godwin and K.J. Czymmek (2016). Nitrogen- vs phosphorus-based manure and compost management of corn. Agronomy Journal 108: 185-195. doi:10.2134/agronj2015.0218.
15. Cela, S., Q.M. Ketterings, K.J. Czymmek, M. Soberon, and C.N. Rasmussen (2015). Long-term trends of nitrogen and phosphorus mass balances on New York State dairy farms. Journal of Dairy Science 98: 7052-7070.
16. Soberon, M., S. Cela, Q.M. Ketterings, K.J. Czymmek, and C.N. Rasmussen (2015). Changes in nutrient mass balances over time and related drivers for 54 New York dairy farms (2015). Journal of Dairy Science 98: 5313–5329.
17. Little, N.G., C.L. Mohler, Q.M. Ketterings and A. DiTommaso (2015). Effects of organic nutrient amendments on weed and crop growth. Weed Science 63: 710-722. doi: 10.1614/WS-D-14-00151.1.
18. Ketterings Q.M., S.N. Swink, S.W. Duiker, K.J. Czymmek, D.B. Beegle, and W.J. Cox (2015). Review and interpretation: integrating cover crops for N management in corn systems on northeastern dairies. Agronomy Journal 107: 1365-1376. doi:10.2134/agronj14.0385.
19. Ketterings, Q.M., S. Ort, S.N. Swink, G. Godwin, T. Kilcer, J. Miller, W. Verbeten, and K.J. Czymmek (2015). Winter cereals as double crops in corn rotations on New York dairy farms. Journal of Agricultural Science –DOI: 10.5539.
20. Cela, S., Q.M. Ketterings, K.J. Czymmek, M. Soberon, and C.N. Rasmussen. (2014). Characterization of N, P, and K mass balances of dairy farms in New York State. Journal of Dairy Science 97:7614–7632.
21. Ketterings, Q.M., S. Gami, R.R. Mathur, and M. Woods (2014). A simple method for estimating effective cation exchange capacity, cation saturation ratios and sulfur across a wide range of soils. Soil Science 179:230-236.
22. Caldwell, B., C.L. Mohler, Q.M. Ketterings, and A. DiTommaso (2014). Yields and profitability during and after transition in organic grain cropping systems. Agronomy Journal 106:871-880.
23. Ketterings, Q.M. (2014). Extension and knowledge transfer; adaptive management approaches for timely impact. Journal of Agricultural Science, Cambridge, DOI:10.1017/S002185961300066X.
24. Ketterings, Q.M, G.S. Godwin, S.N. Swink, and K.J. Czymmek (2013). Can manure replace the need for starter nitrogen fertilizer? Agronomy Journal 105: 1597–1605.
25. Long, E., Q.M. Ketterings and K.J. Czymmek (2013). Survey of cover crop use on New York dairy farms. Crop Management, DOI:10.1094/CM-2013-0019-RS.
26. Soberon, M.A., Q.M. Ketterings, C.N. Rasmussen and K.J. Czymmek (2013). Whole farm nutrient balance calculator for New York dairy farms. Journal of Natural Resources and Life Science Education 42: 57-67.
27. Ketterings, Q.M., G. Godwin, P. Barney, J.R. Lawrence, B. Aldrich, T. Kilcer, K.J. Czymmek, and B. Gloy (2013). Shallow mixing of surface soil and liquid dairy manure conserves nitrogen while retaining surface residue. Agronomy for Sustainable Development 33: 507-517.
28. Magidow, L., A. DiTommaso, Q.M. Ketterings, C.L. Mohler, and L. L. Milbrath (2013). Emergency and performance of two invasive Swallow-worts (Vincetoxicum app.) in contrasting soil types and soil pH. Invasive Plant Science and Management 6: 281-191.
29. Ketterings, Q.M., J. Knight, P. Ristow, G. Swanepoel, and K.J. Czymmek (2012). Evaluation of dairy and cash grain farmers’ perceptions of the value of manure. Crop Management. doi:10.1094/CM-2012-1024-01-RS.
30. Ketterings, Q.M., K.J. Czymmek, D.B. Beegle, L.E. Chase, and C.N. Rasmussen (2012). Systematic nutrient (im) balances in dairy farm systems of the Northeast and Mid-Atlantic regions of the United States. Journal of Agricultural Sciences (in press) (doi:10.5539/jas.v4n11p).
31. Ketterings, Q.M., and K.J. Czymmek (2012). P Index as a P awareness tool: documented P use reduction in New York State. Journal of Environmental Quality. 41(6): 1767-1773 (doi:10.2135/jeq2012.0050).
32. Sharpley, A., D. Beegle, C. Bolster, L. Good, B. Joern, Q.M. Ketterings, J. Lory, R. Mikkelsen, D. Osmond, and P. Vadas (2012). Phosphorus Indices: Why we need to take stock of how we are doing. Journal of Environmental Quality 41(6): 1711-1719. (doi:10.2135/jeq2012.0040).
33. Kleinman, P, K. Saacke Blunk, R. Bryant, L. Saporito, D. Beegle, K. Czymmek, Q.M. Ketterings, T. Sims, J. Shortle, J. McGrath, F. Coale, M. Dubin, D. Dostie, R. Maguire, R. Meinen, A. Allen, K. O’Neill, L. Garber, M. Davis, B. Clark, K. Sellner, and M. Smith (2012). Managing manure for sustainable livestock production in the Chesapeake Bay Watershed. Journal of Soil and Water Conservation. 67(2): 54-61. (doi:10.2489/jswc.67.2.54A)
34. Ketterings, Q.M., G. Godwin, S. Gami, K. Dietzel, J. Lawrence, P. Barney, T. Kilcer, M. Stanyard, C. Albers, J.H. Cherney, D. Cherney, K.J. Czymmek (2012). Soil and tissue testing for sulfur management of alfalfa in New York State. Soil Science Society of America Journal 76(1): 298-306.
35. Ketterings, Q.M., C. Miyamoto, R.R. Mathur, K. Dietzel, and S. Gami (2011). A comparison of soil sulfur extraction methods. Soil Science Society of America Journal 75(4): 1578-1583.
36. Ketterings, Q.M., K.J. Czymmek, and S.N. Swink (2011). Evaluation methods for a combined research and extension program used to address starter phosphorus fertilizer use for corn in New York. Canadian Journal of Soil Science 91(3): 467-477.
37. Haden, R.V., J. Xiang, S. Peng, Q.M. Ketterings, P. Hobbs, and J. Duxbury (2011). Ammonia toxicity in aerobic rice: use of soil properties to predict ammonia volatilization following urea application and the adverse effects on germination. European Journal of Soil Science 62(4): 551–559.
38. Haden, R.V., J. Xiang, S. Peng, B. Bouman, R. Visperas, Q.M. Ketterings, P. Hobbs, and J. Duxbury (2011). Relative effects of ammonia and nitrite on germination and early growth or aerobic rice. Journal of Plant Nutrition & Soil Science 174(2): 292-300.
39. Parsons, D., Q.M. Ketterings, J.H. Cherney, R.W. Blake, L. Ramirez-Aviles, C.F. Nicholson (2011). Effects of weed control and manure application on nutrient fluxes in the shifting cultivation milpa system of Yucatan. Archives of Agronomy and Soil Science 57(3): 273-292.
40. Swink, S.N, Q.M. Ketterings, L.E. Chase, K.J. Czymmek, and M. van Amburgh (2011). Nitrogen balances for New York State: Implications for manure and fertilizer management. Journal of Soil and Water Conservation 66(1): 1-17.
41. Janzen, H.H., P. Fixen, A.J. Franzluebbers, J. Hattey, R.C. Izaurralde, Q. M. Ketterings, D.A. Lobb, W.H. Schlesinger (2011). Global prospects are rooted in Soil Science. Soil Science Society of America Journal 75(1): 1-8.
42. Parsons, D., C.F. Nicholson, R.W. Blake, Q.M. Ketterings, L. Ramírez-Aviles, J.H. Cherney, and D.G. Fox (2011). Application of a simulation model for assessing integration of smallholder shifting cultivation and sheep production in Yucatán, Mexico. Agricultural Systems 104(1): 13-19.
43. Parsons, D, C.F. Nicholson, R.W. Blake, Q.M. Ketterings, L. Ramírez-Aviles, D.G. Fox, L.O. Tedeschi, J.H. Cherney (2011). Development and evaluation of an integrated simulation model for assessing smallholder crop-livestock production in Yucatán, Mexico. Agricultural Systems 104(1): 1-12.
44. Maguire, R.O., P.J.A. Kleinman, C. Dell, D.B. Beegle, R.C. Brandt, J.M. Mcgrath, and Q.M. Ketterings (2011). Manure application technology in reduced tillage and forage systems; a review. Journal of Environmental Quality 40(2): 292-301.
45. Chunyu, S., and Q.M. Ketterings (2010). Impact of soil temperature and moisture on Mehlich-3 and Morgan soil test phosphorus. Soil Science. doi: 10.1097/SS.0b013e3181f850d4.
46. Grandt, S., Q.M. Ketterings, A.J. Lembo Jr., and F. Vermeylen (2010). In-field spatial variability of soil test phosphorus and implications for agronomic and environmental phosphorus management. Soil Science Society of America Journal 74:1800-1807.
47. Cherney, J.H., Q.M. Ketterings. M. Davis, and D.J.R. Cherney (2010). Split application of nitrogen vs. dairy manure on temperate perennial grasses. Forage and Grazinglands. DOI:10.1094/FG-2010-02XX-01-RS.
48. Cherney, J.H., Q.M. Ketterings. M. Davis, and D.J.R. Cherney (2010). Timing of semi-solid dairy manure applications does not affect yield and quality of orchardgrass. Agronomy Journal 102:537-543.
49. Turan, M., Q.M. Ketterings, A. Gunes, N. Ataoglu, A.V. Bilgili, and Y. Ming Huang (2010). Boron fertilization of mediterranean Aridisols improves lucerne (Medicago sativa L.) yields and quality. Acta Agriculturae Scandinavica, Section B - Plant Soil Science. 60:427-436.
50. Medvecky, B.A., and Q.M. Ketterings (2009). Incorporation of legumes residues does not increase productivity of intercropped beans on smallholder farms in Trans-Nzoia District, Kenya. Biological Agriculture and Horticulture 26(4): 323-335.
51. Parsons, D., L. Ramirez-Aviles, J.H. Cherney, Q.M. Ketterings, R.W. Blake, and C.F. Nicholson (2009). Managing maize production in shifting cultivation milpa systems in Yucatan, through weed control and manure application. Agriculture, Ecosystems and Environment 133: 123-134.
52. Hunter, M., Q.M. Ketterings, J.H. Cherney, P. Barney, T. Kilcer, and G. Godwin (2009). Nitrogen needs of teff (Eragrostis tef (Zucc. Trotter) managed as forage crop in New York. Forage and Grazinglands DOI:10.1094/FG-2009-0612-01-RS.
53. Gunes, A., N. Ataoglu, M. Turan, A. Esitken, and Q.M. Ketterings (2009). Effects of phosphate-solubilizing micro-organisms on strawberry yield and nutrient concentrations. Journal of Plant Nutrition and Soil Science DOI:10.1002/jpln.200800121.
54. Swink, S.N., Q.M. Ketterings, L.E. Chase, and K.J. Czymmek, and J.C. Mekken (2009). Past and future phosphorus balances for agricultural cropland in New York State. Journal of Soil and Water Conservation 64(2):120-133.
55. Dietzel, K., Q.M. Ketterings, and R. Rao (2009). Predictors of lime needs for pH and aluminum management of New York agricultural soils. Soil Science Society of America Journal 74(2): 443-448.
56. Turan, M., F.M., Kiziloglu, and Q.M. Ketterings (2009). Phosphorus management of Lucerne grown on calcareous soil in Turkey. Journal of Plant Nutrition 32: 516-535.
57. Lawrence, J.R., Q.M. Ketterings, M.G. Goler, J.H. Cherney, W.J. Cox and K.J. Czymmek (2009). Accuracy of the Illinois Soil Nitrogen Test (ISNT) in predicting N responsiveness of corn in rotation. Soil Science Society of America J. 73(1): 303-311.
58. Turan, M., A. Dursun, N. Ataoglu, A. Gunes, M. Ekinci, T. Oztas, Q.M. Ketterings, Y. Ming Huang (2009). Yield and chemical composition of Brussels sprout (Brassica oleracea L. gemmifera) as affected by boron management. HortScience 44(1):176-182.
59. Soldat, D., M. Petrovic, and Q.M. Ketterings (2008). The effect of soil phosphorus levels on phosphorus runoff concentrations from turfgrass. Water, Air, and Soil Pollution DOI:10.1007/211270-008-9857-y.
60. Lawrence, J.R., Q.M. Ketterings, J.H. Cherney, S.E. Bossard, G.S. Godwin (2008). Tillage tools for manure incorporation and N conservation. Soil Science 173: 649-658.
61. Lawrence, J.R., Q.M. Ketterings and J.H. Cherney (2008). Effect of nitrogen application on yield and quality of first year corn. Agronomy Journal 100: 73-79.
62. Angin, I., M. Turan, Q.M. Ketterings, and A. Cakici (2008). Humic acid addition enhances B and Pb phytoextraction by vetiver grass (Vetiveria zizanioides l. Nash). Water, Air and Soil Pollution 188: 335-343.
63. Swink, S.N., Q.M. Ketterings, and W.J. Cox (2007). Nitrogen fertilizer replacement value of soybean for corn. Online. Crop Production DOI:10.1094/CM-2007-1005-01-RV.
64. Ketterings, Q.M., J.H. Cherney, G. Godwin, T.F. Kilcer, P. Barney, and S. Beer (2007). Nitrogen management of brown midrib sorghum x sudangrass in the Northeastern USA. Agronomy Journal 99: 1345–1351.
65. Haden, V.R., Q.M. Ketterings, and J.E. Kahabka (2007). Factors affecting the change in soil test P levels following manure and fertilizer application. Soil Science Society of American Journal 71: 1225-1232.
66. Ketterings, Q.M., E. Frenay, J.H. Cherney, K.J. Czymmek, S.D. Klausner, L.E. Chase, Y.H. Schukken (2007). Applying manure to established alfalfa-grass stands. Online. Forage and Grazinglands DOI: 10.1094/FG-2007-0418-01-RV.
67. Brock, E.H., Q.M. Ketterings, and P.J.A. Kleinman (2007). Measuring and predicting the phosphorus sorption capacity of manure amended soils. Soil Science 172: 266-278.
68. Brock, E.H., Q.M. Ketterings, and P.J.A. Kleinman (2007). Phosphorus leaching through intact soil cores as influenced by type and duration of manure application. Nutrient Cycling and Agroecosystems 77: 269-281. DOI: 10.1007/s10705-006-9065-3.
69. Medvecky, B.A, Q.M. Ketterings and E.B. Nelson (2007). Relationships among soilborne bean seedling diseases, Lablab purpureus L. and maize stover residue management, bean insect pests, and soil characteristics in Trans Nzoia district, Kenya. Applied Soil Ecology 35: 107-119.
70. Özgül, M, M. Turan, and Q.M. Ketterings (2007). Short- and long-term phosphorus availability in four soil orders under native vegetation in Turkey. Acta Agriculturæ Scandinavica Section B, Soil and Plant Science. DOI: 10.1080/09064710601029695.
71. Ketterings, Q.M., Godwin, G., T.F. Kilcer, P. Barney, M. Hunter, J.H. Cherney, and S. Beer (2006). Nitrogen, phosphorus, potassium, magnesium and calcium removal by brown midrib sorghum sudangrass in the Northeastern USA. Journal of Agronomy and Crop Science 192: 408-416.
72. Ketterings, Q.M., G.L Albrecht, C.N. Rasmussen, and K.J. Czymmek (2006). Cornell Cropware: Decision support tool for fertilizer and manure nutrient management planning. Journal of Natural Resources and Life Sciences Education 35: 140-151.
73. Klapwyk, J.H., Q.M. Ketterings, G.S. Godwin, M. Wang (2006). Response of the Illinois Soil Nitrogen Test to liquid and composted dairy manure application in a corn agroecosystem. Canadian Journal of Soil Science 86: 655-663.
74. Brock, E.H., Q.M. Ketterings, and M. McBride (2006). Copper and zinc accumulation in dairy and poultry amended soils. Soil Science 171: 388-399.
75. Medvecky, B.A., Q.M. Ketterings, and F. Vermeylen (2006). Bean seedling damage by root-feeding grubs in Kenya as influenced by planting time, cultivar, and crop residue management. Applied Soil Ecology 34: 240-249.
76. Klapwyk, J.H., and Q.M. Ketterings (2006). Soil nitrogen tests for predicting if corn will respond to nitrogen fertilizer in New York. Agronomy Journal 98: 675-681.
77. Woods, M.S., F.S. Rossi, and Q.M. Ketterings (2006). Potassium supply rate as measured by exchange membranes in a calcareous sand. Applied Turfgrass Science DOI:10.1094/ATS-2006-0323-01-RS.
78. Albrecht, G.L., Q.M. Ketterings, K.J. Czymmek, M. van Amburgh, and D.G. Fox (2006). Whole Farm Nutrient Management: Capstone course on environmental management of dairy farms. J. Natural Resources and Life Science Education 35: 12-23.
79. Woods, M.S., Q.M. Ketterings, F.S. Rossi and M. Petrovic (2006). Potassium availability indices and turfgrass performance in a calcareous sand putting green. Crop Science 46: 381-389.
80. Sato, S., D. Solomon, C. Hyland, Q.M. Ketterings, and J. Lehmann (2005). Phosphorus speciation in manure and manure-amended soils using XANES spectroscopy. Environmental Science and Technology 39: 7485-7491.
81. Woods, M.S., Q.M. Ketterings, and F.S. Rossi (2005). Effects of potassium application on calcium and magnesium availability in a calcareous sand. International Turfgrass Society Research Journal 10: 1015-1020.
82. Lehmann, J., Z. Lan, C. Hyland, S. Sato, D. Solomon, and Q.M. Ketterings. Long-term dynamics of phosphorus forms and retention in manure-amended soils (2005). Environmental Science and Technology 39: 6672-6680.
83. Burgers, P., Q.M. Ketterings, and D.P. Garrity (2005). Fallow management strategies and issues in Southeast Asia. Agriculture Ecosystems and Environment 110: 1-13.
84. Ketterings, Q.M., S.N. Swink, G. Godwin, K.J. Czymmek, and G.L. Albrecht (2005). Maize silage yield and quality response to starter phosphorus fertilizer in high phosphorus soils in New York. Journal of Food, Agriculture and Environment 3: 360-365.
85. Klapwyk, J.H., and Q.M. Ketterings (2005). Reducing laboratory variability of the Illinois soil N test with enclosed griddles. Soil Science Society of America Journal 69: 1129-1134.
86. Ketterings, Q.M. and M. Flock (2005). Comparison of Bray-1 and Mehlich-3 tests in high phosphorus soils. Soil Science 170: 212-219.
87. Woods, M.S., Q.M. Ketterings, and F.S. Rossi (2005). Effectiveness of standard soil tests for assessing potassium availability in sand rootzones. Soil Science 170: 110-119.
88. Ketterings, Q.M., J. Kahabka, and W.S. Reid (2005). Trends in phosphorus fertility of New York agricultural land. Journal of Soil and Water Conservation 59: 10-20.
89. Ketterings, Q.M., G. Godwin, J.H. Cherney, and T.F. Kilcer (2005). Potassium management for brown midrib sorghum x sudangrass in the Northeast. Journal of Agronomy and Crop Science 191: 41-46.
90. Kilcer, T.F., Q.M. Ketterings, J.H. Cherney, P. Cerosaletti and P. Barney (2005). Optimum stand height for forage brown midrib sorghum x sudangrass in Northeastern USA. Journal of Agronomy and Crop Science 191: 35-40.
91. Ketterings, Q.M., J.H. Cherney, T.F. Kilcer, and P. Cerosaletti (2004). Phosphorus removal by sorghum sudangrass in Northeastern USA. Online. Forage and Grazinglands DOI:10.1094/FG-2004-1015-01-RS.
92. Cherney, J.H., Q.M. Ketterings, and J.L. Orloski (2004). Plant and soil elemental status as influenced by multi-year nitrogen and potassium fertilization. Journal of Plant Nutrition 27: 991-1014.
93. Rodenburg, J., A. Stein, M. Van Noordwijk, and Q.M. Ketterings (2003). Spatial variability of soil pH and phosphorus in relation to soil run-off following slash-and-burn land clearing in Sumatra, Indonesia. Soil and Tillage Research 71: 1-14.
94. Ketterings, Q.M., K.J. Czymmek, W.S. Reid and R.F. Wildman (2002). Conversion of modified Morgan and Mehlich-III soil tests to Morgan soil test values. Soil Science 167: 830-837.
95. Van Es, H., K.J. Czymmek and Q.M. Ketterings (2002). Management effects of N leaching and guidelines for an N leaching index in New York. Journal of Soil and Water Conservation 57: 499-504.
96. Tomich, T.P., H. de Foresta, R. Dennis, Q.M. Ketterings, D. Murdiyarso, C. Palm, F. Stolle, Suyanto, and M. van Noordwijk (2002). Carbon offsets for conservation and development in Indonesia? American Journal of Alternative Agriculture 17(2): 125-137.
97. Ketterings, Q.M., M. Van Noordwijk, and J. M Bigham (2002). Soil phosphorus availability after slash-and-burn fires of different intensities in rubber agroforests in Sumatra, Indonesia. Agriculture, Ecosystems and Environment 92: 37-48.
98. Ketterings, Q.M., R. Coe, M. Van Noordwijk, Y. Ambagau’, and C.A. Palm (2001). Reducing uncertainty in the use of allometric biomass equations for predicting above ground tree biomass in mixed secondary forests.  Forest Ecology and Management 146: 201-211.
99. Ketterings, Q.M. and J.M. Bigham (2000). Soil color as an indicator of slash-and-burn fire severity and soil fertility in Sumatra, Indonesia. Soil Science Society of America Journal 64: 1826-1833.
100. Ketterings, Q.M., J.M. Bigham, and V. Laperche (2000). Changes in soil mineralogy and texture caused by slash-and-burn fires in Sumatra, Indonesia. Soil Science Society of America Journal 64: 1108-1117.
101. Ketterings, Q.M., T.T. Wibowo, M. Van Noordwijk, and E. Penot (1999). Farmers’ perspectives on slash-and-burn as a land clearing method for small-scale rubber producers in Sepunggur, Jambi Province, Sumatra, Indonesia. Forest Ecology and Management 120: 157-169.
102. Bohlen, P.J., R.W. Parmelee, M.F. Allen, and Q.M. Ketterings (1999). Differential effects of earthworms on nitrogen cycling from various 15N-labeled substrates. Soil Science Society of America Journal 63: 882-890.
103. Ketterings, Q.M., J.M. Blair and J.C.Y. Marinissen (1997). The effects of earthworm activity on soil aggregate stability and C and N storage in a legume cover crop based agroecosystem. Soil Biology and Biochemistry 29: 401-408.