# introduction [[Phosphorous MOC]] is a vital component of plant growth required for chorophyl production and other growth related functions. Apart from naturally occuring in the soil it is majorly supplied via fertilisers. The phosphorous in fertilisers in mined from phosphate rock. # problem statement the reserves of phosphate rock in the world are limited with an estimated * billion tonnes remaining which will last us for ** years. The limited reserves calls for an urgent response for an alternative material or practises which can ensure sustainable use of the mineral. # questions to answer 1. Estimate on ph that will be needed for the next 50 years versus phosphate rock reserves. (Calculate life of phosphate rock) 2. Are there any fertlisers which do not need phosphorous? 3. Are there any alternatives to phosphorous used today? 4. Extent of depletion of phosphorous in the soil? Conservation/reuse methods? # hypothesis structure 1. [[Fertilisers]] 1. [[Nitrogen Fertiliser]] 2. [[Phosphorus Fertiliser]] 3. [[Potassium Fertiliser]] 4. [[NPK Fertiliser]] 2. [[Getting Phosphorous]] 3. [[Fertiliser Production]] 4. [[Phosporous Innovation]] ---- #wip References: 1. https://www.fertilizerseurope.com/phosphorus-in-food-production/ 2. https://www.yara.com/crop-nutrition/why-fertilizer/production-of-fertillizer/