[EBOOK] Zinc in Soils And Crop Nutrition, Brian J. Alloway, Published by International Fertilizer Industry Association and International Zinc Association

Zinc (Zn) is an essential micronutrient and has particular physiological functions in all living systems such as the maintenance of structural and functional integrity of biolog.cal membranes and facilitation of protein synthesis and gene expression Among all metals Zn IS needed by the largest number of proteins Zinc-binding proteins make up nearly 10 'tí of the proteomes in eukaryotic cells and 36^1 of the eukaryotic Zn-proteins are involved in gene expression (Andre/I: el al 1006. J Proteome Kn 5 5I7Ỉ-3I78Ị lolerance to environmental stress conditions has a high requirement for Zn to regulate and maintain the expression of genes needed to protect cells from the detrimental effects of stress (CatvnoK. 2000 New Pfiytol 146: 185-205)

Zinc deficiency appears to be the most widespread and frequent micronutnent deficiency problem in crop and pasture plants worldwide resulting in severe losses in yield and nutntional quality This IS particularly the case in aieas of cereal production It is estimated that nearly half the soils on which cereals are grown have levels of available Zn low enough to cause Zn deficiency Since cereal grains have inherently low Zn concentrations growing them on these potentially Zn-deficient soils further decreases grain Zn concentration It is therefore not surprising that the well-documented Zn deficiency problem in humans occurs predominantly in the countries, regions such as India China Pakistan and Turkey where soils are low in available Zn and cereals are the major source of calorie intake

Zinc deficiency in humans IS a critical nutritional and health problem in the world It affects on average one-third of the world s population, ranging from A to 7 3 % in different countnes ỊHotỉ ond Brown 2004. Food \utr Ball 25 94-204/ The recent analyses made under the Copenhagen Consensus Ml 2008 (WWW copenhagenconsensus com) Identified Zn deficiency, together with vitamin A deficiency, as the top priority global issue and concluded that elimination ol the Zn deficiency problem will result in immediate high impacts and high returns for humanity in the developing world

It is therefore highly important to develop cost-effective and quick solutions to the Zn deficiency problem Low Zn in plant tissues IS a reflection of both genetic- and soil-related factors A basic knowledge of the dynamics of Zn in soils understanding of the uptake and transport of Zn in plant systems and characterizing the response of plants to Zn deficiency are essential steps in achieving sustainable solutions to the problem ol Zn deficiency in plants and humans

This book "Znc In Soils and Crop Nutrition" by Brian Alloway contributes significantly to our better understanding of the complexities of Zn dynamics in soil and plant systems It contains very valuable basic and practical information for a wide audience Including students agronomists and scientists who are involved in research extension or education in soil science, plant mineral nutrition plant physiology and also human nutrition Detailed information on the prevalence arid diagnosis of Zn deficiency problems for a number of countries and crop plants IS an excellent feature of this book

This book has been available electronically since 2004 It has now been decided to publish this updated version in a print format This is a great idea that will further contribute to a wide distnbution of the useful information contained In the book.

I would like to congratulate Prol Brian Alloway on this excellent achievement. and thank the International Zinc Association (IZA) and the International Fertilizer Industry Association |IFA| for their support which has made the publication of such a valuable book possible.

[EBOOK] Zinc in Soils And Crop Nutrition, Brian J. Alloway, Published by International Fertilizer Industry Association and International Zinc Association

CLICK HERE TO DOWNLOAD THIS EBOOK

Keyword: ebook, giáo trình, Zn, Znc, Zinc in Soils, Crop Nutrition, kẽm, nguyên tố kẽm, vi lượng kẽm, kẽm trong đất, vi lượng kẽm trong đất, dinh dưỡng cây trồng, dinh dưỡng khoáng cây trồng, vi lượng đối với cây trồng