Maize Agroecosystem: Nutrient Dynamics and Productivity

Preface by Kowligi Krishna Maize Agroecosystem: Origin, Physiography, Expanse, and Production Introduction Physiography, Agroclimate, Soils, Water Requirements and Cropping Systems Expanse and Productivity of Maize Agroecosystem: Current Status Uses Summary Soils of the Maize Agroecosystem: Tillage and Nutrient Dynamics Soils of Maize Agroecosystem Physico-Chemical Transformations of Nutrients in the Soil: A Summary Soil Tillage affects Nutrient Dynamics in the Maize Belt Summary Nitrogen, Phosphorus, and Potassium in Maize Agroecosystems Major Nutrients: Nitrogen, Phosphorus and Potassium in Maize Belts Nitrogen Dynamics in Maize Agroecosystem Phosphorus Dynamics in Maize Agroecosystem Potassium Dynamics in Maize Cropping Zones Summary Secondary and Micronutrients in Maize Agroecosystems Soil Organic Matter, Crop Residues, and Green Manures Soil Organic Carbon and Its Sequestration Crop Residues and Nutrient Recycling Green Manures and Nutrient Dynamics Organic Mulches and Nutrient Dynamics Summary Maize Roots, Rhizosphere, Soil Microbes, and Nutrient Dynamics Introduction Maize Roots, Their Growth and Nutrient Dynamics Root Exudations Maize Rhizosphere Soil Microbes and Nutrient Dynamics Summary Crop Physiology, Genetic Improvement, and Nutrient Dynamics Integrated Nutrient Management Crop Response to Nutrient Management Procedures Modeling to Improve Nutrient Dynamics and Maize Production: Examples Agronomic Efficiency of Fertilizers Irrigation and Water-Use Efficiency Affect Nutrient Dynamics Soil Erosion Control and Its impact on Nutrient Dynamics Weeds affect Nutrient Dynamics and reduce Maize Productivity Long Term trials With Maize Cropping Systems, Nutrient Dynamics and Productivity Maize for Bio-fuel Production: Nutrients and Productivity Summary Index

K. R. Krishna received his PhD in Agriculture from the University of Agricultural Sciences Bangalore. He has been a cereals scientist in India and a visiting professor and research scholar at the Soil and Water Science Department at the University of Florida, Gainesville, USA. Dr. Krishna is a member of several professional organizations, including the American Society of Agronomony, the Soil Science Society of America, the Ecological Society of America, and the Indian Society of Agronomy.