Phosphorus is a key element in food production, but is a non-renewable resource. Recent estimates suggest that global … the rundown in P reserves and the consequential rise in fertilizer prices. The global distribution of current P fertilizer … fertilizer P manufacture and use, and the recycling of P in liquid and solid wastes. The latter approach offers win-win solutions …

Phosphorus (P) reacts with soil minerals making it less plant available. Considering that the Amazonian soils are … of P addition to soil. Phosphate fertilization decreasing N:P ratio from 50 to 26. Phosphorus favored the photochemical … efficiency of PSII ( F V /F M ) and, from the application of 200 mg kg -1 increase photosynthesis ( P N ) in 50%. Phosphorus …

Stickstoff und Phosphor aus der Landwirtschaft, dem Abwasserbereich und dem Luftpfad in das Grundwasser, die Oberflächengewässer … nitrogen and phosphorus from agriculture, the wastewater sector and the air pathway into groundwater, surface waters and the …