Presentations

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Phosphorus Utilization in Grassland Ecosystems

J Karlovsky, Ruakura Soil and Plant Research

Availability of Soil Phosphate to Tropical Pasture Species

F W. Smith, CSIRO

Manurial Value of Liquid, Anaerobically Digested Sewage Sludge on Grassland in the West of Scotland

K F. Edgar, University of the West of Scotland
R D. Harkess, University of the West of Scotland
J Frame, University of the West of Scotland

Waste- Water Application, Dry-Matter Production, and Nitrogen Balanced Rhodesgrass Grown on Fine-Textured Soil or on Sand Dunes

T Kipnis, The Volcani Center
A Feigin, The Volcani Center
I Vaisman, The Volcani Center
J Shalhevet, The Volcani Center

Effect of Converting Chaparral to Grassland on Soil Fertility in a Mediterranean-Type Climate

M B. Jones, University of California
R L. Koenigs, University of California
C E. Vaughn, University of California
A H. Murphy, University of California

Effect of N-P-K Fertilization on Mineral Composition of Poa pratensis L. Grown on a Shallow Muck Soil

J W. Lightner, Purdue University
C L. Rhykerd, Purdue University
G E. Van Scoyoc, Purdue University
D B. Mengel, Purdue University
C H. Noller, Purdue University
B O. Blair, Purdue University

Some Effects of Applied Nitrogen on Grass Growth in Field Swards at Different Times of Year

D Wilman, University College of Wales
P T. Wright, University College of Wales

Effect of Lime on Lucerne in Relation to Soil Acidity Factors

G P. Mahoney, Department of Agriculture, AU
H R. Jones, Department of Agriculture, AU
J M. Hunter, Department of Agriculture, AU

Liming for Tropical Legume Establishment and Production

G H. Snyder, University of Florida
A E. Kretschmer Jr, University of Florida

Residual Effects of Two Years of Very High Nitrogen Applications on Clay Soil under Grass in a Humid Temperate Climate

W H. PRins, Institute for Soil Fertility

Impact of Phosphorus and Potassium Fertilization on Maintaining Alfalfa-Orchardgrass Swards in Hokkaido, Japan

H Oohara, Hokkaido University
N Yoshida, Hokkaido University
K Fukunaga, Hokkaido University
W G. Colby, Hokkaido
M Drake, Hokkaido
W F. Wedin, Hokkaido University
G Kemmler, Hokkaido University
H R. Uxekull, Hokkaido University
M Hasegawa, Hokkaido University

Suitability of Early Pleistocene Sandy Lowlands for the Cultivation of Alfalfa (Medicago sativa L.)

E Wojahn, GDR
G Mundel, GDR
W Kreil, GDR

Phytotoxic Response of Five Range-Grass Species to Six In-Situ Fossil-Fuel Retort Waters

O D. Skinner, University of Wyoming
J C. Sexton, University of Wyoming
T S. Moore, University of Wyoming
D S. Farrier, University of Wyoming

Prediction of the Supply of Soil Nitrogen to Grass

D C. Whitehead, The Grassland Institute, UK

Soil Nutrient Constraint for Legume-Based Pastures in the Brazilian Cerrados

W Couto, CIAT
C Sanzonowics, EMBRAPA

Pasture Production and Changes in Soil Fertility on a Long-Term Irrigated Superphosphate Trial at Winchmore, New Zealand

B F. Quin, Ministry of Agriculture and Fisheries, NZ
D S. Rickard, Ministry of Agriculture and Fisheries, NZ