%0 Conference Paper
%A Palmer, M.
%A Cooper, J.M
%A Fließbach, A.
%A Melville, J.
%A Turnbull, C.
%A Shotton, P.
%A Leifert, C.
%D 2007
%F orgprints:10398
%K organic farming, N mineralisation, plant bioassay, Anbautechnik einjährige Kulturen, Bodenfruchtbarkeit, QLIF, 
%T N released from organic amendments is affected by soil management history
%U http://orgprints.org/10398/
%X A ryegrass bioassay was conducted to investigate the effect of soil management history on nitrogen mineralisation from composted manure and pelleted poultry manure. Soils were used from 2 field experiments comparing conventional and organic/low input management systems.  When composted manure was added, soils  which had received high rates of composted FYM under biodynamic management released a greater amount of nitrogen for plant uptake than those with a history of mineral or fresh manure fertilisation, suggesting that biological preconditioning may result in greater efficiency of composted FYM as a nitrogen source for plants.  “Native” N mineralisation was found to be related to total soil N content.