|Table 6: Measured and estimated phosphorus flows (kg P ha−1 year−1) and selected quotients (kg P kg P−1) in the cropping systems at Apelsvoll, mean 2001–20101.|
1Timestep used is the agrohydrological year (May–April), thus, covering the period May 2001–April 2011.|
2Each system covers 0.18 ha, and consists of four rotation plots á 0.045 ha.
3Including the P removed with straw. Harvested grass-clover P was reduced by 10% to account for likely harvest-related losses under practical conditions (see Section 2).
4Not including P removed with straw.