|Table 7: Measured and estimated potassium flows (kg K ha−1 year−1) and selected quotients (kg K kg K−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 á0.045 ha.
3Including the K removed with straw. Harvested grass-clover K was reduced by 10% to account for likely harvest-related losses under practical conditions (see Section 2).
4Not including K removed with straw.