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3. Soil priorities in British Columbia, Canada

Author

Cornelis, J.-T., Bittman, S., Black, A., Chanway, C., Grayston, S., Hannam, K., Kabzems, R., Kranabetter, M., Krzic, M., Lavkulich, L., Prescott, C., Preston, M.D., Sanborn, P., Simard, S., and Smukler, S.

Published
2022
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17. Manuresheds: Advancing nutrient recycling in US agriculture

Author

Spiegal, S, Kleinman, PJA, Endale, DM, Bryant, RB, Dell, C, Goslee, S, Meinen, RJ, Flynn, KC, Baker, JM, Browning, DM, McCarty, G, Bittman, S, Carter, J, Cavigelli, M, Duncan, E, Gowda, P, Li, X, Ponce-Campos, GE, Cibin, R, Silveira, ML, Smith, DR, Arthur, DK, Yang, Q, Spiegal, S, Kleinman, PJA, Endale, DM, Bryant, RB, Dell, C, Goslee, S, Meinen, RJ, Flynn, KC, Baker, JM, Browning, DM, McCarty, G, Bittman, S, Carter, J, Cavigelli, M, Duncan, E, Gowda, P, Li, X, Ponce-Campos, GE, Cibin, R, Silveira, ML, Smith, DR, Arthur, DK, and Yang, Q

Published
2020

22. Nitrogen dynamics after low-emission applications of dairy slurry or fertilizer on perennial grass: a long term field study employing natural abundance of δ15N.

Author

Zhang, H., Hunt, D. E., Ellert, B., Maillard, E., Kleinman, P. J. A., Spiegal, S., Angers, D. A., and Bittman, S.

Subjects
DAIRY farms, SLURRY, FIELD research, SILT, PERENNIALS
Abstract

Background: Defining the long-term effects of liquid dairy manure (LDM) applied by a recommended low emission method is important to ensure sustainable grass production and dairy operations. We used natural abundance δ15N and conventional measurements in a long term field experiment to better understand the long-term fate of N applied as LDM, mineral fertilizer (MIN) and both (ALT). Methods: We investigated the effects of long-term applications of LDM (with low-emission trailing shoe), MIN, and alternating LDM and MIN (ALT) on grass N uptake, soil N stocks, N losses and δ15N natural abundance in grass, soil and fine heavy fraction (silt + clay size heavy soil). Nominal annual rates of total N were 200 and 400 kg ha−1 for MIN and 400 and 800 kg ha−1 for LDM. Results: MIN and LDM (at 400 kg N ha−1) had similar NUE but LDM accumulated more total soil N (13% of applied) with less losses than MIN; ALT had high yields and losses. Herbage δ15N of MIN declined to near MIN levels after 10–15 years, indicating influence of pre trial management. Herbage δ15N of LDM was consistently lower than applied LDM, implying uptake of depleted urine N. High rates of enriched LDM had little effect on soil δ15N suggesting soil N was quite stable and enriched N was lost by non discriminating pathways like leaching. The physically protected fine heavy fraction contained most soil N. Conclusion: Clearer understanding of long-term N dynamics can improve sustainability of heavily fertilized perennial grasses on dairy farms. [ABSTRACT FROM AUTHOR]

Published
2021
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26. Manure application techniques

Author

Webb, J., Lalor, S. T. J., Bittman, S., Misselbrook, T., Sutton, M. A., Menzi, H., Döhler, H., Smith, K., Steen Gyldenkærne, Nicholas Hutchings, Hoek, K., Fiani, E., Lukin, S., Klimont, Z., Bittman, S., Dedina, M., Howard, C.M., Oenema, O., and Sutton, M.

Published
2014

31. Residual N effects from livestock manure inputs to soils

Author

Schroder, J.J., Bechini, L., Bittman, S., Brito, M.P., Delin, S., Lalor, S.T.J., Morvan, T., Chambers, B.J., Sakrabani, R., and Sørensen, P.B.

Subjects
Agro Water- en Biobased Economy, Life Science, Soil Biology, Bodembiologie
Abstract

Organic inputs including livestock manures provide nitrogen (N) to crops beyond the year of their application. This so-called residual N effect should be taken into account when making decisions on N rates for individual fields, but also when interpreting N response trials in preparation of recommendations. This paper addresses general principles of residual N effects, gives literature-based estimates of them, and reviews to which extent residual N effects are included in recommendations and regulations in selected countries.

Published
2013

32. Nitrogen budget estimated for 908 cow-calf, backgrounding and finishing beef operations across Canada.

Author

Sheppard, S., Bittman, S., and Ominski, K.

Abstract

Beef production plays a significant role in Canadian agriculture in terms of its contribution to total farm cash receipts and management of large tracts of land. The sustainability of the sector has been challenged on several fronts including greenhouse gas and ammonia emissions. An extensive survey of husbandry and agronomic practices in 2011 provided the unique opportunity to compute a detailed nitrogen (N) budget for 908 beef operations of different types from across Canada. The resulting overall-N and commercial-N budgets and overall commercial and beef nitrogen use efficiency (NUE) estimates varied markedly among the types of beef operations. Surprisingly, forage-based cow-calf operations with little importation of commercial N sources often had the largest overall surplus N (N remaining on farms), largely because of symbiotic N fixation of pasture and forage crops, a larger land-base and lower NH-N emissions compared to confinement housing. These operations had relatively low NUE estimates of about 0.33. In contrast, solely finisher operations had overall N budgets that were not different from zero and NUE of about 0.66. These operations purchase much of their feed and animal nutrition is carefully managed, so the NUE is distinctly higher than in forage-based systems. However, these operations also have high NH emissions. Observed regional differences in budgets were related to differences in deposition of atmospheric N and in legume content of forages. [ABSTRACT FROM AUTHOR]

Published
2018
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33. Beef cattle husbandry practices across Ecoregions of Canada in 2011

Author

Sheppard, S. C., primary, Bittman, S., additional, Donohoe, G., additional, Flaten, D., additional, Wittenberg, K. M., additional, Small, J. A., additional, Berthiaume, R., additional, McAllister, T. A., additional, Beauchemin, K. A., additional, McKinnon, J., additional, Amiro, B. D., additional, MacDonald, D., additional, Mattos, F., additional, and Ominski, K. H., additional

Published
2015
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34. Nitrogen management

Author

Bittman, S., Dedina, M., Howard, C.M., Oenema, O., Sutton, M.A., Bittman, S., Dedina, M., Howard, C.M., Oenema, O., and Sutton, M.A.

Published
2014

36. Livestock production and developments

Author

Bittman, S., Dedina, M., Howard, C.M., Oenema, O., Sutton, M.A., Bittman, S., Dedina, M., Howard, C.M., Oenema, O., and Sutton, M.A.

Published
2014

38. Manure application techniques

Author

Bittman, S., Dedina, M., Howard, C.M., Oenema, O., Sutton, M.A., Webb, J., Lalor, S.T.J., Misselbrook, T., Menzi, H., Döhler, H., Smith, K., Gyldenkaerne, S., Hutchings, N.J., van der Hoek, K., Fiani, E., Lukin, S., Klimont, Z., Bittman, S., Dedina, M., Howard, C.M., Oenema, O., Sutton, M.A., Webb, J., Lalor, S.T.J., Misselbrook, T., Menzi, H., Döhler, H., Smith, K., Gyldenkaerne, S., Hutchings, N.J., van der Hoek, K., Fiani, E., Lukin, S., and Klimont, Z.

Published
2014

42. Fertilizer application

Author

Bittman, S., Dedina, M., Howard, C.M., Oenema, O., Sutton, M.A., Misselbrook, T., Webb, J., Pallière, C., Lukin, S., Wade, B., Bittman, S., Dedina, M., Howard, C.M., Oenema, O., Sutton, M.A., Misselbrook, T., Webb, J., Pallière, C., Lukin, S., and Wade, B.

Published
2014

45. Manure application techniques

Author

Oenema,, S.Bittman, M. Dedina, C.M. Howard, O., Sutton, M.A., Webb, J., Lalor, S.T.J., Bittman, S., Klimont, Z., Oenema,, S.Bittman, M. Dedina, C.M. Howard, O., Sutton, M.A., Webb, J., Lalor, S.T.J., Bittman, S., and Klimont, Z.

Published
2014

46. Sparse‐Flowering Orchardgrass Represents an Improvement in Forage Quality During Reproductive Growth

Author

Casler, M.D., primary, Undersander, D.J., additional, Papadopolous, Y.A., additional, Bittman, S., additional, Hunt, D., additional, Mathison, R.D., additional, Min, D.H., additional, Robins, J.G., additional, Cherney, J.H., additional, Acharya, S.N., additional, Belesky, D.P., additional, Bowley, S.R., additional, Coulman, B.E., additional, Drapeau, R., additional, Ehlke, N.J., additional, Hall, M.H., additional, Leep, R.H., additional, Michaud, R., additional, Rowsell, J., additional, Shewmaker, G.E., additional, Teutsch, C.D., additional, and Coblentz, W.K., additional

Published
2014
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47. Assessment Methods for Ammonia Hot-Spots

Author

Sutton, M.A., Reis, Stefan, Baker, S., Cellier, P., Theobald, M. R., Asman, W. A. H., Bealey, W., Bittman, S., Dragosits, U., Fudala, J., Jones, M., Lofstrom, P., Loubet, B., Rihm, B., Smith, K., Strizik, M, van der Hoek, K., van Jaarsveld, H., Walker, J., Zelinger, Z., Sutton, M.A., Reis, Stefan, Baker, S., Cellier, P., Theobald, M. R., Asman, W. A. H., Bealey, W., Bittman, S., Dragosits, U., Fudala, J., Jones, M., Lofstrom, P., Loubet, B., Rihm, B., Smith, K., Strizik, M, van der Hoek, K., van Jaarsveld, H., Walker, J., and Zelinger, Z.

Published
2009

48. Assessment methods for ammonia hot-spots

Author

Reis, M. Sutton, S., Baker, S.M.H., Cellier, P., Theobald, M.R., Asman, W.A.H., Bealey, W., Bittman, S., Dragosits, U., Fudala, J., Jones, M., Reis, M. Sutton, S., Baker, S.M.H., Cellier, P., Theobald, M.R., Asman, W.A.H., Bealey, W., Bittman, S., Dragosits, U., Fudala, J., and Jones, M.

Abstract

To date, most attention in modelling NH3 dispersion and deposition has focused on the regional and Euopean scale, and little attention has been given to dealing with NH3 in hot-spot areas. The Working Group addressed the issue of hot-spots with four main objectives: *Identify what are the main issues of hot-spots and their consequences at different scales. *Review current modelling methods for accounting for NH3 dispersion and deposition in hot-spots. *Examine the status of methods for effect assessment and air monitoring in NH3 hot-spots. *Recommend broad principles for assessment approaches in ammonia hot-spots, including spatial approaches and the interactions between transboundary ammonia emission reduction targets and other policy measures.

Published
2009

49. Sparse‐Flowering Orchardgrass is Stable Across Temperate North America

Author

Casler, M. D., primary, Papadopolous, Y. A., additional, Bittman, S., additional, Mathison, R. D., additional, Min, D. H., additional, Robins, J. G., additional, Cherney, J. H., additional, Acharya, S. N., additional, Belesky, D. P., additional, Bowley, S. R., additional, Coulman, B. E., additional, Drapeau, R., additional, Ehlke, N. J., additional, Hall, M. H., additional, Leep, R. H., additional, Michaud, R., additional, Rowsell, J., additional, Shewmaker, G. E., additional, Teutsch, C. D., additional, and Coblentz, W. K., additional

Published
2013
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