Optimisation of nutrient cycling and soil quality for sustainable grasslands 11
Section 3: Physical constraints to soil formation 95
Assessment of nitrogen nutrition status of grasses under water deficit and recovery 97
V.G. Dugo, J-L. Durand and F. Gastal
Denitrification under pastures on permeable soils helps protect ground water quality 98
M.P. Russelle, B.A. Browne, N.B. Turyk
and B. Pearson
Phosphorus transfer to river water from grassland catchments in Ireland 99
H. Tunney, P. Jordan
,
G. Kiely, R. Moles, G. Morgan, P. Byrne, W. Menary and K. Daly
Maximising slurry crop available nitrogen utilisation in grassland systems 100
J.R. Williams, E. Sagoo, B.J. Chambers, J. Laws and D.R. Chadwick
Fire and nutrient cycling in shortgrass steppe of the southern Great Plains, USA 101
P.L. Ford and C.S. White
Soil aggregate dynamics, particulate organic matter and phosphate under dryland and irrigated pasture 102
J.T. Scott, L.M. Condron and R.W. McDowell
Fine colloids ‘carry’ diffuse water contaminants from grasslands 103
P.M. Haygarth and A.L. Heathwaite
Leaching losses of N, P and K from grazed legume based swards: some preliminary results 104
E.R. Dixon, A.C. Stone, D. Scholefield and D.J. Hatch
Nitrogen dynamics following the break-up of grassland on three different sandy soils 105
M. Kayser, K. Seidel and J. Müller
Mechanical aeration and liquid dairy manure: application impacts on grassland runoff water quality and yield 106
T.J. Basden, S.B. Shah and J.L. Miller
Management options to reduce N-losses from ploughed grass-clover 107
J. de Wit, G.J. van der Burgt and N. van Eekeren
Rangeland ecological management counter-measures study of Xinjiang 108
H.X. Cui, J. Li, S. Asiya, J.L. Zhang and Jialin
Green Dairy, a project for environmental friendly and sustainable dairy systems in the Atlantic area 109
H. Chambaut, A. Pflimlin and C. Raison
SAFE - a tool for assessing the sustainability of agricultural systems: an illustration 110
X. Sauvenier, C. Bielders, M. Hermy, E. Mathijs, B. Muys, J. Valckx, N. Van Cauwenbergh,
M. Vanclooster, E. Wauters and A. Peeters
SAFE - a tool for assessing the sustainability of agricultural systems: methodology 111
X. Sauvenier, C. Bielders, M. Hermy, E. Mathijs, B. Muys, J. Valckx, N. Van Cauwenbergh,
M. Vanclooster, E. Wauters and A. Peeters
Keyword index 113
Author index 115