Response of pastures to fertiliser nitrogen on two peat soils in the Waikato region

Authors

  • W.T. Carlson
  • G.L. Lucci
  • M.S. Sprosen

DOI:

https://doi.org/10.33584/jnzg.2017.79.561

Abstract

Abstract Fertiliser nitrogen (N) response trials were conducted on Waikato dairy pastures on two contrasting peat soils: a well-developed Kaipaki peat loam and a lessdeveloped Rukuhia peat. On the well-developed site the most efficient N fertiliser rate in spring was 25 kg N/ ha with a response of 22 DM/kg N applied. However, in autumn the most efficient rates of N fertiliser were 75 and 100 kg N/ha, with an average response rate of 11 kg DM/kg N. At the less-developed site, the most efficient rates in the spring were 25 to 75 kg N/ha with an average response of 18 DM/kg N applied. In autumn, the maximum response rate of 21 kg DM/kg N was reached through application of 50 and 75 kg N/ha. Results indicate that greater yields are expected from larger applications of N fertiliser on less-developed peat. However, the environmental consequences of increased N fertiliser applications have not yet been assessed. Keywords: nitrogen fertiliser, pasture production, peat

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Published

2017-01-01

How to Cite

Carlson, W., Lucci, G., & Sprosen, M. (2017). Response of pastures to fertiliser nitrogen on two peat soils in the Waikato region. Journal of New Zealand Grasslands, 79, 79–82. https://doi.org/10.33584/jnzg.2017.79.561

Issue

Volume 79, 2017, Whanganui

Section

Past volumes

License

Copyright

This work is licensed under a Creative Commons Attribution-Non Commercial-NoDerivatives 4.0 International License. Rights granted to the New Zealand Grassland Association through this agreement are non-exclusive. You are free to publish the work(s) elsewhere and no ownership is assumed by the NZGA when storing or curating an electronic version of the work(s). The author(s) will receive no monetary return from the Association for the use of material contained in the manuscript. If I am one of several co-authors, I hereby confirm that I am authorized by my co-authors to grant this Licence as their agent on their behalf. For the avoidance of doubt, this includes the rights to supply the article in electronic and online forms and systems.