${session.getAttribute("locale")} 5 The role of hydraulic lift and subsoil P placement in P uptake of cotton (Gossypium hirsutum L.) Thu 10 Dec 2015 08:07:09 EST ]]> Transformations and availability of phosphorus in three contrasting soil types from native and farming systems : A study using fractionation and isotopic labeling techniques Thu 10 Dec 2015 06:37:58 EST ]]>