PPT-PHOSPHORUS Dr.P.R.SAIJI

ASSOCIATE PROFESSOR DEPT OF MATERIA MEDICA NAME Phosphorus SYMBOL P ATOMIC No 15 ATOMIC Wt 30973762 GROUP No 15 GROUP NAME Pnictogen PERIOD No 3 BLOCK p block . Phosphorus is largely retained in soil by a process called adsorption. . Soils . have a limited capacity to store phosphorus, and once the capacity of soil to adsorb phosphorus is exceeded, the excess will dissolve and move more freely with water either directly to a stream or downward to an aquifer. . Eric Smeltzer. eric.smeltzer@state.vt.us. Why is phosphorus a problem in lakes?. Low. Phosphorus. ~10 µg/L. Very high. Phosphorus. > 50 µg/L. High. phosphorus. Medium. phosphorus. Why are excessive algae a problem in lakes?. in the Lake Champlain Basin of Vermont. Kip Potter, NRCS. on behalf of: . Julie . Moore, . Dave . Braun, Don Meals, Mike Middleman and Eric Howe. December 11, 2015. Lake Champlain Efforts to Reduce Phosphorus. Alexandra Arntsen, Alison Foster, Scott Ritter. April 2011. Problem Statement:. . Excess phosphorus loading in Lake Champlain is affecting overall water quality through increased growth rates of photosynthetic aquatic plant life and the subsequent reduction of dissolved oxygen. . Geochemical Cycles continued. Objectives: . Describe the process of cycling phosphorus throughout environment. . Describe the role that fertilizer plays in both the nitrogen and phosphorus cycle. . What is phosphorus?. Joana Lapao Rocha. UCT, Prague . 1. Food Security. Phosphorus is irreplaceable and impossible to synthesize. Indispensable to maintain high agricultural yields . Phosphate rock was added to the list of critical raw materials at EU level. and Phosphate. Phosphorus . is essential for the growth of algae and other biological organisms. .. Algal . blooms P enters into . surface . waters from,. - . Domestic . + industrial discharges. Unit 4 . – Nutrient Cycles in marine ecosystems. Magnesium:. Used to . make chlorophyll. Ca Cycle:. Ca present in ocean as Ca. 2+ . (calcium ions). From weathering/erosion of . rocks. ; . brought to ocean from runoff of rivers. Ron . Entringer. , Jay Bloomfield. NYSDEC. Watershed Modeling:. Steve . Pacenka. , Casey Garland, . Peter . Vermeulen. , . Tammo. . Steenhuis. Cornell University . NYC Watershed/. Tifft. Science & Technical Symposium. Renal Physiology 5. Charles J. Foulks, M.D.. 9/21/2011. Minerals . Calcium (Ca) . Phosphorus (P) . Magnesium (Mg) . Organ Systems . Skeleton . Kidney . GI tract . Other . Hormones . Calcitropic hormones . Steve Gladding, Brian Duffy, Ron Entringer , Jay Bloomfield NYSDEC Watershed Modeling: Steve Pacenka , Casey Garland, Peter Vermeulen , Tammo Steenhuis Cornell University NYC Watershed/ Tifft sector of the source nutrient loading challenge is in part due greater areal order for be effective in the of the Missisquoi Bay watershed research monitoring identify sensitive critical sources Bound Objectives. Define: immobilization, mineralization, phosphorus cycle, phosphorus fixation, soil phosphate. Diagram the relationship of phosphorus inputs and soil processes. List and describe inherent factors that affect soil phosphorus. Courtney Giles, PhD. UVM . EPSCoR. /RACC Q1. Phosphorus. MW: 30.97. Hennig. Brand, 1669. History. <. 1200 . Present. – Manure fertilizers used. 1669. . – . Hennig. Brand discovers ‘white’ elemental .