{"content":[{"text":"Prolonged nutrient release \n pattern of Polysulphate™ fertilizer \n Reduces the potential for sulphate leaching","bbox":{"left":0.047619,"top":0.444297,"width":0.8040430000000001,"height":0.13842500000000008}},{"text":"Sulphur is an essential macro-nutrient so there is usually a need for fertilization. Like nitrate, \n sulphate is prone to leaching and needs be managed carefully to minimize that risk. Polysulphate, \n a new multi nutrient fertilizer mined in the UK at Cleveland Potash, helps reduce the risk of \n leaching due to its prolonged release characteristics.","bbox":{"left":0.047619,"top":0.615862,"width":0.902873,"height":0.08355299999999999}},{"text":"In order to compare the rate of release of sulphate in soil from Polysulphate™ fertilizer with that from \n sulphate of ammonia, sulphate of potash and kieserite (all granular form), a soil column experiment was \n set up at the University of Nottingham, UK. The fertilizers, at equivalent rates of sulphur, were added to \n the tops of replicated columns of loam soil which had previously been leached. In order to determine \n how much sulphate became available each day from the different sources, the columns were leached \n (flushed) daily with de-ionised water, and the sulphate contents of the leachates were measured.","bbox":{"left":0.047619,"top":0.722765,"width":0.89889,"height":0.126313}}],"images_bbox":[{"left":-0.001756,"top":-0.001334,"width":1.003471,"height":0.392171},{"left":0.456931,"top":0.287448,"width":0.031918,"height":0.099776},{"left":0.026878,"top":0.299327,"width":0.438452,"height":0.095024},{"left":0.048717,"top":0.307641,"width":0.404854,"height":0.08671},{"left":0.428649,"top":0.306512,"width":0.029558,"height":0.076378},{"left":0.428649,"top":0.287513,"width":0.06019,"height":0.099557},{"left":0.442084,"top":0.294733,"width":0.036007,"height":0.088538},{"left":0.456594,"top":0.38175,"width":0.008061,"height":0.00532},{"left":0.451891,"top":0.318331,"width":0.549325,"height":0.076019},{"left":0.465731,"top":0.325132,"width":0.536339,"height":0.069158},{"left":0.0,"top":0.287448,"width":0.458611,"height":0.078395},{"left":-0.00182,"top":0.287513,"width":0.444441,"height":0.069538},{"left":0.684547,"top":0.911827,"width":0.267834,"height":0.055963}],"images_bbox_not_text_overlap":[{"left":-0.001756,"top":-0.001334,"width":1.003471,"height":0.392171},{"left":0.456931,"top":0.287448,"width":0.031918,"height":0.099776},{"left":0.026878,"top":0.299327,"width":0.438452,"height":0.095024},{"left":0.048717,"top":0.307641,"width":0.404854,"height":0.08671},{"left":0.428649,"top":0.306512,"width":0.029558,"height":0.076378},{"left":0.428649,"top":0.287513,"width":0.06019,"height":0.099557},{"left":0.442084,"top":0.294733,"width":0.036007,"height":0.088538},{"left":0.456594,"top":0.38175,"width":0.008061,"height":0.00532},{"left":0.451891,"top":0.318331,"width":0.549325,"height":0.076019},{"left":0.465731,"top":0.325132,"width":0.536339,"height":0.069158},{"left":0.0,"top":0.287448,"width":0.458611,"height":0.078395},{"left":-0.00182,"top":0.287513,"width":0.444441,"height":0.069538},{"left":0.684547,"top":0.911827,"width":0.267834,"height":0.055963}]}