TAILIEUCHUNG - Agricultural Chemicals and the Environment

Enormous increases in agricultural productivity can properly be associated with the use of chemicals. This statement applies equally to crop production through the use offertilizers, herbicides, and pesticides, as to livestock production and the associated use of drugs, steroids, and other growth accelerators. There is, however, a dark side to this picture and it is important to balance the benefits which flow from the use of agricultural chemicals against their environmental impacts, which sometimes are seriously disadvantageous. Within this volume we explore a variety of issues which currently are subject to wide-ranging debate and are of concern not only to the scientific establishment and to students but also. | ừ znrrui Socnct rd kcrr r lĩ UII IV V s Agricultural Chemicals and the Environment ISSUES IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY EDITORS R. E. HESTER AND R. M. HARRISON 5 Agricultural Chemicals and the Environment RS C ROYAL soctrr OF CHEMI ĨHY ISBN 0-85404-220-2 ISSN 1350-7583 A catalogue record for this book is available from the British Library The Royal Society of Chemistry 1996 All rights reserved Apart from any fair dealing for the purposes of research or private study or criticism or review as permitted under the terms of the UK Copyright Designs and Patents Act 1988 this publication may not be reproduced stored or transmitted in any form or by any means without the prior permission in writing of The Royal Society of Chemistry or in the case of reprographic reproduction only in accordance with the terms of the licences issued by the Copyright Licensing Agency in the UK or in accordance with the terms of the licences issued by the appropriate Reproduction Rights Organization outside the UK. Enquiries concerning reproduction outside the terms stated here should be sent to The Royal Society of Chemistry at the address printed on this page. Published by The Royal Society of Chemistry Thomas Graham House Science Park Milton Road Cambridge CB4 4WF UK Typeset in Great Britain by Vision Typesetting Manchester Printed and bound in Great Britain by Bath Press .

• Vật lý
• Nitrate Leaching
• Natural Waters
• Toxic Algal Blooms
• Water Quality
• Agricultural Pesticides
• Agricultural Nitrogen
• Wheat field
• Lateral leaching of nitrate
• Vertical leaching
• Horizontal movement potential
• Nitrate vertical leaching
• Soil fertility
• Review on role of biochar amendment
• Slightly charred biomass
• Consortium of endophytic nitrogen fixing bacteria
• Endophytic nitrogen fixing bacteria
• Surusugarcane on yield
• Yield at agricultural
• Station Kasbe Digraj
• Agricultural sciences
• Maize populations under different nitrogen rates
• Grain yield stability
• Low soil nitrogen
• Nitrogen use efficiency
• Biological nitrogen fixation
• Nitrogen fixing bacteria
• Identification of nitrogenfixing bacteria isolated
• Agricultural soil
• 16S rRNA sequence similarity
• Conservation agriculture
• Nitrogen response functions
• Nutrient uptake
• N fertilization in wheat
• Nitrogen management practices on productivity
• Agricultural science
• Varieties of canola plant
• Brassica napus L
• Newly reclaimed desert to plant growth promoting rhizobacteria
• Mineral nitrogen fertilizer
• Nitrogen fertilization
• Nitrogen fertilizer management
• Tidal submergence tolerant landrace rice
• Nitrogen fertilizer
• Unfavorable ecosystem
• Optimizing wate
• Crop growth
• Maize yield
• Water use efficiency
• Agricultural activities
• Plant Biology
• Seed N content
• Agricultural production
• External nitrogen stress
• Total plant nitrogen content
• Nitrogen fertilization on wheat
• Yield attributes
• Rice straw
• 1000 grain weight
• Forage yield of pearl millet
• Nitrogen fertilization rates
• Cutting height
• Cutting height; Fresh forage yield
• Dry forage yield
• Grain yield response index
• Bread wheat cultivars as influenced by nitrogen levels
• Agronomic efficiency
• Water requirements
• Planting date
• Mineral and organic nitrogen fertilization
• Essential oil and oil yield
• Irrigation and nitrogen fertilization
• Number of irrigation
• Gaseous ammonia
• Actual evapotranspiration
• Total nitrogen
• Total phosphorus
• Alkaline potassium persulfate
• Ion chromatography
• agriculture
• planting methods
• soil improvement
• secret plant
• document the agricultural industry
• agricultural report
• Urease inhibitors
• Crop production
• Pollution mitigation
• Agricultural interest since mid
• Annals of Agricultural Sciences
• Khoa học nông nghiệp
• Soil type
• Bacterial biomass
• Total carbon
• Vietnam journal of agricultural sciences
• Root system development
• physiological traits
• Dry matter production of rice
• Nodal root number
• Nodal root length
• Productivity of pigeonpea genotypes
• NPK fertiliser application
• Residual effects on maize yield
• Nitrogen accumulation
• Palm bunch ash
• Sorghum farm in Sinai Peninsula
• Marginal rate of return
• Acceptable minimum rate of return