Around 150 people from universities, research institutes from within China and overseas, as well as the main fertilizer dealers and some large farms, ICL Fertilizers and the International Potash Institute (IPI) attended the 1st IPI Symposium on Polyhalite, “Polyhalite - A New Potassium Fertilizer with Complete Secondary Nutrients” in Hainan, China.
Due to the negative impacts of excessive application of high concentration macronutrient NPK fertilizers, and the limited application of organic fertilizer, China is now paying much more attention to balanced fertilization. This new focus provides an ideal opportunity for greater use of secondary nutrients fertilizer, in addition to potassium (K), which includes provision of sulphur (S), magnesium (Mg) and calcium (Ca) to plants.
At the event in China, evidence of the positive performance of polyhalite, as Polysulphate, in a wide range of crops was presented to the highly interested audience. Eleven key speakers revealed results of Polyhalite research from China and elsewhere on a wide range of fruit, tuber, grain and leaf crops
Evidence from the podium was backed up with evidence from the field. The whole conference spent time looking at protected cropping of hami-melon with Polysulphate. This completed the successful presentation of the scientific, practical and commercial case for an increased role for Polysulphate fertilizer in many parts of China