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With this edition of the manual, FAO is establishing a new procedure for the development of pesticide specifications in a transparent manner. The specifications may be used to provide an international point of reference against which products can be judged, either for regulatory purposes or in commercial dealings, thereby helping to prevent the trading, sale and use of inferior products, and will contribute towards public and environmental safety throughout the world, especially in developing countries
Een uiteenzetting van de grondslagen en laboratoriumfaciliteiten van weefselcultuur. Het gaat hierbij in het bijzonder om wortelgewassen, palmen, citrus- en siersoorten. Deze leidraad voor weefselcultuur is gebaseerd op de publikatie van Dr. Lyndsey A. Withers: "Minimum requireements for receiving and maintaining tissue culture propagating material". Dit werk is door de auteur herzien naar aanleiding van voordrachten op het internationaal symposium in Noorwegen, 3 en 4 juli 1984. Het symposium kwam tot stand in samenwerking met de FAO
Cover crops slow erosion, improve soil, smother weeds, enhance nutrient and moisture availability, help control many pests and bring a host of other benefits to your farm. At the same time, they can reduce costs, increase profits and even create new sources of income. You¿ll reap dividends on your cover crop investments for years, since their benefits accumulate over the long term. This book will help you find which ones are right for you. Captures farmer and other research results from the past ten years. The authors verified the info. from the 2nd ed., added new results and updated farmer profiles and research data, and added 2 chap. Includes maps and charts, detailed narratives about individual cover crop species, and chap. about aspects of cover cropping.