Diagnosis of the Nitrogen Status in Crops [Paperback]

Providing a link between theoretical and applied aspects of plant nutrition and agriculture, this book introduces new concepts in plant nutrition. It shows how these can be applied in order to assess the nitrogen status in crops and to improve nitrogen nutrition through optimized N fertilization management. In this way economic benefits can be obtained, while at the same time preventing detrimental effects on the environment. The main agricultural crops - grasses, wheat, barley, Durum wheat, maize, sorghum, grain legumes and potatoes - are covered. The book will be an invaluable source for agronomists.Providing a link between theoretical and applied aspects of plant nutrition and agriculture, this book introduces new concepts in plant nutrition. It shows how these can be applied in order to assess the nitrogen status in crops and to improve nitrogen nutrition through optimized N fertilization management. In this way economic benefits can be obtained, while at the same time preventing detrimental effects on the environment. The main agricultural crops - grasses, wheat, barley, Durum wheat, maize, sorghum, grain legumes and potatoes - are covered. The book will be an invaluable source for agronomists.I On the Critical N Concentration in Agricultural Crops.- 1 N Uptake and Distribution in Plant Canopies.- 2 Use of the Nitrogen Nutrition Index for the Analysis of Agronomical Data.- II The Nitrogen Requirement of Major Agricultural Crops.- 3 Grasslands.- 4 Wheat, Barley, and Durum Wheat.- 5 Maize and Sorghum.- 6 Grain Legumes.- 7 Potatoes.- 8 Mixed Crops.- III Management of N Nutrition.- 9 Nitrogen Diagnosis and Decision Support.- 10 Diagnosis Using Stem Base Extract: JUBIL Method.- 11 Leaf N Content as an Indicator of Crop N Nutrition Status.- 12 Radiometric Estimates of Nitrogen Status of Leaves and Canopies.- 13 Concluding Remarks: N Hazards to Crops and Environment.This book provides a link between theoretical and applied aspects of plant nutrition and agriculture. IlãÆ