TY  - CONF
ID  - orgprints10398
UR  - http://orgprints.org/10398/
A1  - Palmer, M.
A1  - Cooper, J.M
A1  - Fließbach, A.
A1  - Melville, J.
A1  - Turnbull, C.
A1  - Shotton, P.
A1  - Leifert, C.
TI  - N released from organic amendments is affected by soil management history
Y1  - 2007///
N2  - 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.
AV  - public
KW  - organic farming
KW  -  N mineralisation
KW  -  plant bioassay
KW  -  Anbautechnik einjährige Kulturen
KW  -  Bodenfruchtbarkeit
KW  -  QLIF
KW  -  
ER  -