Phosphorus Management in Crop Production

World phosphate situation and factors affecting phosphorus availability to plants in soil Introduction Historical overview World phosphate rock reserves and resources Mineralogy of phosphate rocks Glossary of phosphorus related terms Cycle in soil-plant system Organic phosphorus in soils Inorganic phosphorus in soils Reactions of phosphorus fertilizers in soil Evaluation and utilization of residual phosphorus in soils Factors influencing phosphorus availability to plants Conclusions References Functions of phosphorus in crop plants Introduction Functions Conclusions References Diagnostic techniques for phosphorus requirements in crop plants Introduction Phosphorus deficiency, sufficiency and toxicity diagnostic techniques Phosphorus concentration in plants Phosphorus uptake in plants Phosphorus harvest index Phosphorus requirement of cereals Phosphorus requirement of legumes Conclusions References Phosphorus use efficiency in crop plants Introduction Definition of mineral nutrient efficiency and nutrient efficient plants Types of phosphorus use efficiency and mathematical equations for their calculation Phosphorus use efficiency versus crop yield Mechanisms responsible for variation in P use efficiency in crop plants Breeding crop species/genotypes for improved phosphorus use efficiency Enhancing phosphorus use efficiency in crop species/genotypes Molecular and genetic approach to improve phosphorus use efficiency Conclusions References Phosphorus interactions with other nutrients Introduction Phosphorus interactions with macronutrients Phosphorus versus micronutrients Phosphorus versus soil salinity Conclusions References Phosphorus and environment Introduction Transport of phosphorus from agricultural lands to aquatic environment Management practices to reduce phosphorus loss from soil-plant system Conclusions References Management practices for optimizing phosphorus availability to crop plants Introduction Soil management Fertilizer management Crop management Conclusions References Phosphorus nutrition research in crop plants: basic principles and meyhodology Introduction Research under controlled conditions Research under field conditions Conclusions References