A deficiency of one or more of the eight plant micronutrients
(boron, chlorine, copper, iron, manganese, molybdenum, nickel and
zinc) will adversely affect both the yield and quality of crops.
Micronutrient deficiencies in crops occur in many parts of the
world, at various scales (from one to millions of hectares), but
differences in soil conditions, climate, crop genotypes and
management, result in marked variations in their occurrence. The
causes, effects and alleviation of micronutrient deficiencies in
crops in: Australia, India, China, Turkey, the Near East, Africa,
Europe, South America and the United States of America, are
covered, and these are representative of most of the different
conditions under which crops are grown anywhere in the world.
Links between low contents of iodine, iron and zinc (human
micronutrients) in staple grains and the incidence of human health
problems are discussed, together with the ways in which the
micronutrient content of food crops can be increased and their
bioavailability to humans improved. Detailed treatment of topics,
such as: soil types associated with deficiencies, soil testing and
plant analysis, field experiments, innovative treatments,
micronutrients in the subsoil, nutrient interactions, effects of
changing cropping systems, micronutrient budgets and hidden
deficiencies in various chapters provides depth to the broad
coverage of the book.
This book provides a valuable guide to the requirements of crops
for plant micronutrients and the causes, occurrence and treatment
of deficiencies. It is essential reading for many agronomy, plant
nutrition and agricultural extension professionals.
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