We have been experiencing intermittent issues with our phone lines over the past week.  A widespread Microsoft outage is also affecting our email and some online services. We apologise for any related disruption and drop in service levels while things get back to normal.
Close alert

Trends in Olsen P test over time for the Waikato region

TR 2004/09
  1. Services »
  2. Publications »
  3. TR2004/09

Report: TR04/09

Author: DM Wheeler, Agresearch

Abstract

Olsen P data extracted from database of soil fertility data obtained from commercial soil testing lab for the period 1988-2001. Samples were categorised according to land use or soil group (sedimentary, volcanic, pumice, peat).

Olsen P measurements lend themselves to monitoring change over time. This report gives trends in Olsen P levels over time for different land use and soil types for the Waikato region.

Trends In Olsen P Test Over Time For The Waikato Region [PDF, 70 KB]