ABSTRACT
Productivity of Agroecosystems ....................................................................482 36.2.1 Crop Duration ..................................................................................482 36.2.2 Planting Density and Canopy Structure ...........................................483 36.2.3 Water Requirements and Drought Tolerance ...................................485 36.2.4 Nutrient Translocation Index ...........................................................486 36.2.5 Total Biomass Formation .................................................................487 36.2.6 Harvest Index ...................................................................................487 36.2.7 Mineral Content of Grains/Fruits .....................................................487 36.2.8 Nutrient Use Efficiency ...................................................................489 36.3 Crop Genetic Improvement and Nutrient Dynamics in
Agroecosystems: Salient Examples ...............................................................490 Keywords .................................................................................................................493 References ................................................................................................................493 Exercise ....................................................................................................................494 Further Reading .......................................................................................................495 Useful Websites ........................................................................................................495
