Transcription of Guide to laboratory
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Guide to laboratory establishment for plant nutrient analysis FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONSRome, 2008 FAOFERTILIZERAND PLANT NUTRITION MotsaraNew RoyFood and Agriculture OrganizationRomeItalyThe designations employed and the presentation of material in this informationproduct do not imply the expression of any opinion whatsoever on the partof the Food and Agriculture Organization of the United Nations (FAO) concerning thelegal or development status of any country, territory, city or area or of its authorities,or concerning the delimitation of its frontiers or boundaries. The mention of specificcompanies or products of manufacturers, whether or not these have been patented, doesnot imply that these have been endorsed or recommended by FAO in preference toothers of a similar nature that are not 978-92-5-105981-4 All rights reserved. Reproduction and dissemination of material in this informationproduct for educational or other non-commercial purposes are authorized withoutany prior written permission from the copyright holders provided the source is fullyacknowledged.
4. Soil reaction ratings 5. Lime required to reduce soil acidity 6. Lime requirement for different pH targets 7. Chemical characteristics of saline, non-saline sodic and saline sodic soils 8. General interpretation of EC values 9. Wavelengths and corresponding colour ranges 10. Commonly used extractants for micronutrients 11.
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