& Jarallah A-M. EFFECT OF MAGNESIUM APPLICATION ON PHOSPHORUS USE EFFICIENCY (PUE) OF SOME PHOSPHATE FERTILIZERS AND ON MAGNESIUM AND PHOSPHORUS UPTAKE BY MAIZE (ZEA MAY L.). IRAQI JOURNAL OF AGRICULTURAL SCIENCES [Internet]. 23Oct.2019 [cited 17Nov.2019];50(5). Available from: http://jcoagri.uobaghdad.edu.iq/index.php/intro/article/view/795