Recent research and development on white clover in Europe
REU Technical Series 42

















Table of Contents


FAO REGIONAL OFFICE FOR EUROPE

REU TECHNICAL SERIES 42

Interregional Cooperative Research and Development Network on Pastures and Fodder Crops (FAO/CIHEAM)

Saku - Jõgeva - Tartu, Estonia
28-31 August 1995

Edited and compiled by
John Frame
Liaison Officer
Lowland Pastures Subnetwork

FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS
Rome, 1996

The designations employed and the presentation of material in this publication do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organization of the United Nations concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying or otherwise, without the prior permission of the copyright owner. Applications for such permission, with a statement of the purpose and extent of the reproduction, should be addressed to the Director, Publications Division, Food and Agriculture Organization of the United Nations, Viale delle Terme di Caracalla, 00100 Rome, Italy.

© FAO 1996

This electronic document has been scanned using optical character recognition (OCR) software and careful manual recorrection. Even if the quality of digitalisation is high, the FAO declines all responsibility for any discrepancies that may exist between the present document and its original printed version.


Table of Contents


Foreword

The effect of soil environment on white clover persistence and productivity under grazing

Abstract
Introduction
The act of compaction
Soil bulk density
Soil strength
Soil porosity
Gaseous diffusion
Effect of compaction on root growth
Conclusions
References

Pest and disease damage to white clover (Trifolium Repens) in Europe

Abstract
Introduction
Pest damage
Disease damage
Control measures
Conclusions
Acknowledgements
References

The role of white clover in the south european grazing systems: The Po Plain situation

Abstract
Introduction
Role of white clover in permanent grassland
Pasture and animal production from grass/white clover mixtures
Pasture management
Environmental role of white clover
Conclusions
References

White clover in cutting systems

Abstract
Introduction
Defoliation
Plant nutrition
Animal slurry
Water availability
Nutritive value
Intake and feeding value
White clover monoculture
Practical implications
References

The uptake of white clover technology in farming practise

Abstract
Introduction
Farmers' opinions on white clover
Materials and methods
Output/performance on beef farms
Output/performance on dairy farms
Conclusions
References

White clover varieties bred for grazing at Jõgeva plant breeding institute, Estonia

Introduction
Materials and methods
Results
Discussion and conclusions

Evaluation of white clover under grazing management

Introduction
Materials and methods
Results and discussion
Conclusions

The relationship between stolon characteristics, total non-structural carbohydrates, winter survival and spring yield of white clover in Sweden

Introduction
Materials and methods
Results
Discussion and conclusions
References

Assessment of two cold tolerant white clover (Trifolium Repens L.) cultivars under continuous sheep grazing

Introduction
Materials and methods
Results
Discussion and conclusions
Acknowledgement
References

Yield and quality under cutting of contrasting white clover varieties sown in mixture with perennial ryegrass

Introduction
Materials and methods
Results and discussion
Conclusions
References

Possibilities of white clover seed production under extreme climatic conditions

Introduction
Materials and methods
Results
Discussion
Conclusions
References

White clover seed maturity and longevity

Introduction
Materials and methods
Results and discussion
Conclusions
References

Canopy structure and white clover development

Introduction
Materials and methods
Results and discussion
References

Short term effects of nitrogen fertilization on light climate and white clover growth and morphology in a mixed sward

Introduction
Materials and methods
Results
Discussion
References

Leaf dynamics of sheep grazed sown swards under nutrient stress

Introduction
Materials and methods
Results
Discussion and conclusions
Acknowledgements
References

Influence of soil conditions on productivity and persistency of white clover in pastures

Introduction
Materials and methods
Results and discussion
Conclusion
References

Seasonal changes in forage and root production of white clover sown pure and in mixture with ryegrass

Introduction
Materials and methods
Results and discussion
Conclusions
References

White clover seed rate and ratio with grasses for pasture swards

Introduction
Materials and methods
Results and discussion
Conclusions
References

The effect of fertilizer nitrogen application in spring and/or autumn on the production from a perennial ryegrass/white clover sward

Introduction
Materials and methods
Results
Discussion
References

Productivity of the white clover

Introduction
Material and methods
Results
Discussion and conclusions

The persistence of some cultivars of white clover (Trifolium Repens L.) related to nitrogen fertilization

Introduction
Materials and methods
Results
Discussion
Conclusions
References

The investigations on white clover in north-west Russia

Introduction
Materials and methods
Results
Discussion

Productivity of pastures with white clover

Introduction
Materials and methods
Results.
Discussion and conclusions
References

White clover as a source of nitrogen on Estonian grasslands on acid soils poor in humus

Introduction
Materials and methods
Results and discussion
Conclusions
References

The effect of nitrogen fertilization on yield of white clover and grass in pure stands and in mixture

Introduction
Results
Conclusions

Effects of phosphorus application on grass and grass/clover swards

Introduction
Materials and methods
Results
Discussion and conclusions
References

The variation in chemical composition of white clover grown in different conditions of pH

Introduction
Materials and methods
Results and discussion
Conclusions
References

Influence of food source on feeding, longevity and fecundity of Sitona flavescens (Coleoptera: Curculionidae), a major pest of white clover in the UK

Introduction
Materials and methods
Results
Discussion
Acknowledgement
References

Early crop growth, yield and clover development in cut and grazed grass/clover mixtures under organic conditions

Introduction
Materials and methods
Results
Discussion and conclusions
Acknowledgements
References

Specific aspects of utilization of the grass/white clover and grass pastures.

Introduction
Materials and methods
Results
Conclusions
References

The influence of intensive grazing and minimal nitrogen fertilizer on long -term productivity of white clover

Introduction
Materials and methods
Results and discussion
Conclusions
References

The importance of white clover in pasture to the productivity of dairy cows

Introduction
Materials and methods
Results
Discussion and conclusions
References

The potential of grass white clover swards for milk production in north-west Spain

Introduction
Materials and methods
Results
Conclusions
Acknowledgements
References

Effects of spring fertilizer nitrogen and sward height on production from grass/white clover swards grazed by beef cattle

Introduction
Materials and methods
Results
Discussion and conclusions
References
Acknowledgement

Long-term performance of diploid, tetraploid and tetraploid ryegrass-clover swards grazed by sheep

Introduction
Materials and methods
Results
Discussion and conclusions
Acknowledgements
References

List of participants