P.K. Mani

bckv p k mani sludge pabitra mani core crust use efficiency parameter science literature sports sewage rice based cropping system heavy metal pollution pkmani ltfe mitigation option soil grahame model zpc mantle ages of earth brief time line of universe big bang diagram nebular model pedon regolith solum edaphology pedology soil forming factors soils bdm model iep stern layer ohp ihp zeta potential organic ammendments carbon pools pscu. ncu caoted urea nano biosensors smart seed smart delivery of fertilizers and pesticides sewage sickness cod bod sewage treatment sludge production tertiary treatment activated skudge waste handling for dairy agro industrial waste zero waste waste management clarke of concentration mantle; p wave and s wave oddo harkins rule composition of earth an introduction to geomorphology gilbert's concept darwin's concept davis concept hutton's concept geomorphic process-agent cause and product catastrophic concept uniformitarianism geologic time scale glacial landforms aeolian landforms river systems and fluvial landforms volcanic landforms genetic landform classifications major landforms geomorphology basics of geomorphology 15n tagged isotope dsr nitrogen managemnt sri transplanted rice agronomic efficiency recovery efficiency nitrogen mangement ssnm low land rice spad lcc music quiz contest concorrenza heavy metal pollution vermi compost soil health liquid manures farmers tagore inm phosphorus induced zinc deficiency tillage mulching potassium and phosphorus balance phyto remediation energy use in cropping system energy input-output ratio crop diversification gef funded project coastal degraded soil salinity effect of fertilizers and manures pabitra kr mani rice-wheat cropping system crop residue management hriday kamal tarafder effect on soil organic carbon global warming dina conservation agriculture dina khadija ground water contamination chemistry of arsenic food chain arsenic pollution nutrition plant lysimeter micro plot tagged anion exchange schofield's ratio law gouy-chapman theory dlvo model donnan system ligand exchange lippman equation gaines and thomas theorye diffuse double layer model quantity intensity relations ion exchange gapon exchange selectivity coefficient stern model