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2020 - Hill - Overseer use in the One Plan - the effects of model version change

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COMPARING TARARUA DAIRY FARMS ABILITY TO MEET YEAR 20 NITROGEN LEACING LIMITS USING OVERSEER 5.2.6 AND TABLE 14.2 IN THE ONE PLAN, WITH OVERSEER 6.3.0 AND THE RECALIBRATED TABLE

The following report is an investigation into the differences in nitrogen leaching figures in kilograms of nitrogen per hectare (kgN/ha) between Overseer versions 5.2.6 and 6.3.0. It also assesses how the different nitrogen leaching figures effect the proportion of farms able to meet their Year 20 nitrogen leaching targets set by Horizons Regional Council in Table 14.2 of the One Plan and the values from recalibration of this table.

Hill, B., 2020. 

Comparing Tararua dairy farms ability to meet year 20 nitrogen leaching limits using Overseer 5.2.6 and table 14.2 in the one plan, with Overseer 6.3.0 and the recalibrated table. In: Nutrient Management in Farmed Landscapes. (Eds. C.L. Christensen, D.J. Horne and R. Singh). 

http://flrc.massey.ac.nz/publications.html. 

Occasional Report No. 33. Farmed Landscapes Research Centre, Massey University,
Palmerston North, New Zealand. 12 pages.

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