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Effect of management and age of ploughed out grass-clover on forage maize yield and residual soil nitrogen

Mathias Cougnon (UGent) , Koen Van den Berge (UGent) , Tommy D'Hose, Lieven Clement (UGent) and Dirk Reheul (UGent)
(2018) JOURNAL OF AGRICULTURAL SCIENCE. 156(6). p.748-757
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Abstract
Forage maize (Zea mays L.) is often grown year after year on the same land on many intensive dairy farms in north-west Europe. This results in agronomical problems such as weed resistance and decline of soil quality, which may be solved by ley-arable farming. In the current study, forage maize was grown at different nitrogen (N) fertilization levels for 3 years on permanent arable land and on temporary arable land after ploughing out different types of grass-clover swards. Swards differed in management (grazing or cutting) and age (temporary or permanent). Maize yield and soil residual mineral N content were measured after the maize harvest. There was no effect on maize yield of the management of ploughed-out grass-clover swards but a clear effect of the age of grass-clover swards. The N fertilizer replacement value (NFRV) of all ploughed grass-clover swards was >170 kg N/ha in the first year after ploughing. In the third year after ploughing, NFRV of the permanent sward still exceeded 200 kg N/ha, whereas that of the temporary swards decreased to 30 kg N/ha on average. Soil residual nitrate (NO3-) remained below the local, legal threshold of 90 kg NO3- N/ha except for the ploughed-out permanent sward in the third year after ploughing (166 kg NO3- N/ha). The current study highlights the potential of forage maize - ley rotations in saving fertilizer N. This is beneficial both for the environment and for the profitability of dairy production in north-western Europe.
Keywords
Clover, ley-arable, nitrate, soil organic matter, N FERTILIZATION, CROP-ROTATION, NITRATE, LEYS, CULTIVATION, QUALITY, SYSTEM, GROWTH, WHEAT

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MLA
Cougnon, Mathias, Koen Van den Berge, Tommy D’Hose, et al. “Effect of Management and Age of Ploughed Out Grass-clover on Forage Maize Yield and Residual Soil Nitrogen.” JOURNAL OF AGRICULTURAL SCIENCE 156.6 (2018): 748–757. Print.
APA
Cougnon, M., Van den Berge, K., D’Hose, T., Clement, L., & Reheul, D. (2018). Effect of management and age of ploughed out grass-clover on forage maize yield and residual soil nitrogen. JOURNAL OF AGRICULTURAL SCIENCE, 156(6), 748–757.
Chicago author-date
Cougnon, Mathias, Koen Van den Berge, Tommy D’Hose, Lieven Clement, and Dirk Reheul. 2018. “Effect of Management and Age of Ploughed Out Grass-clover on Forage Maize Yield and Residual Soil Nitrogen.” Journal of Agricultural Science 156 (6): 748–757.
Chicago author-date (all authors)
Cougnon, Mathias, Koen Van den Berge, Tommy D’Hose, Lieven Clement, and Dirk Reheul. 2018. “Effect of Management and Age of Ploughed Out Grass-clover on Forage Maize Yield and Residual Soil Nitrogen.” Journal of Agricultural Science 156 (6): 748–757.
Vancouver
1.
Cougnon M, Van den Berge K, D’Hose T, Clement L, Reheul D. Effect of management and age of ploughed out grass-clover on forage maize yield and residual soil nitrogen. JOURNAL OF AGRICULTURAL SCIENCE. 2018;156(6):748–57.
IEEE
[1]
M. Cougnon, K. Van den Berge, T. D’Hose, L. Clement, and D. Reheul, “Effect of management and age of ploughed out grass-clover on forage maize yield and residual soil nitrogen,” JOURNAL OF AGRICULTURAL SCIENCE, vol. 156, no. 6, pp. 748–757, 2018.
@article{8578398,
  abstract     = {Forage maize (Zea mays L.) is often grown year after year on the same land on many intensive dairy farms in north-west Europe. This results in agronomical problems such as weed resistance and decline of soil quality, which may be solved by ley-arable farming. In the current study, forage maize was grown at different nitrogen (N) fertilization levels for 3 years on permanent arable land and on temporary arable land after ploughing out different types of grass-clover swards. Swards differed in management (grazing or cutting) and age (temporary or permanent). Maize yield and soil residual mineral N content were measured after the maize harvest. There was no effect on maize yield of the management of ploughed-out grass-clover swards but a clear effect of the age of grass-clover swards. The N fertilizer replacement value (NFRV) of all ploughed grass-clover swards was >170 kg N/ha in the first year after ploughing. In the third year after ploughing, NFRV of the permanent sward still exceeded 200 kg N/ha, whereas that of the temporary swards decreased to 30 kg N/ha on average. Soil residual nitrate (NO3-) remained below the local, legal threshold of 90 kg NO3- N/ha except for the ploughed-out permanent sward in the third year after ploughing (166 kg NO3- N/ha). The current study highlights the potential of forage maize - ley rotations in saving fertilizer N. This is beneficial both for the environment and for the profitability of dairy production in north-western Europe.},
  author       = {Cougnon, Mathias and Van den Berge, Koen and D'Hose, Tommy and Clement, Lieven and Reheul, Dirk},
  issn         = {0021-8596},
  journal      = {JOURNAL OF AGRICULTURAL SCIENCE},
  keywords     = {Clover,ley-arable,nitrate,soil organic matter,N FERTILIZATION,CROP-ROTATION,NITRATE,LEYS,CULTIVATION,QUALITY,SYSTEM,GROWTH,WHEAT},
  language     = {eng},
  number       = {6},
  pages        = {748--757},
  title        = {Effect of management and age of ploughed out grass-clover on forage maize yield and residual soil nitrogen},
  url          = {http://dx.doi.org/10.1017/S0021859618000631},
  volume       = {156},
  year         = {2018},
}

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