Session 3: Application of Various Types of Potash and Beneficial Functions
Chair: Philip White, JHI and Xinping Chen, SWU
8:30-9:00Polyhalite fertilization in corn and soybean
Michael Castellano
Iowa State University, USA
9:00-9:30Effects of potassium and nitrogen fertilizer application on the occurrence of maize diseases
Guohua Mi
China Agricultural University, Beijing, China
9:30-9:50 Adjusting potassium nutrition to activate intrinsic immunity against apples’ Valsa canker
Guangyu Sun
College of Plant Protection, Northwest A&F University, China
9:50-10:10The role of potassium in plant biotic and abiotic stresses
Min Wang
Nanjing Agricultural University, Nanjing, China
10:10-10:40 Coffee break and poster session
10:40-11:00The effects of K fertilizer and straw returning on crop yield and soil K status.
Shiwei Guo
Nanjing Agricultural University, Nanjing, China
11:00-11:20Polyhalite experiments in rice and wheat in Jiangsu
Ruixian Liu
Jiangsu Academy of Agricultural Sciences, Nanjing, China
11:20-11:40Soil potassium supplying capacity and crops responses to K fertilizer in oilseed rape-rice rotation system
Xiaokun Li
Huazhong Agricultural University, Wuhan, China
11:40-12:00Potato potassium requirement and polyhalite fertilizer management.
Mingshou Fan and Liguo Jia
Inner Mongolia Agricultural University, Hohhot, China
12:00-12:10 General Discussion
12:10-14:00 Lunch
Session 4: Application of Various Types of Potash and Magnesium and Beneficial Functions
Chair: Jiwan P. Palta, UW and Shiwei Guo, NAU
14:00-14:30Evolution of soil potassium and potassium use efficiency under different fertilization regimes
Minggang Xu
Institute of South Asian Tropical Crops, Chinese Academy of Tropical Agricultural Sciences, Zhanjian, China
14:30-15:00Farm evaluation of polyhalite – a promising fertilizer for nutrient management in greenhouse tomatoes
Mollie Sacks
Israel Ministry of Agriculture, Extension Service, Israel
15:00-15:20Effect of acidification on potassium in red soils
Huimin Zhang
Chinese Agricultural Academy of Sciences, Beijing, China
15:20-15:40Effects of biochar application on soil potassium availability and crop response
Fang Chen
Chinese Academy of Sciences, Wuhan, China
15:40-16:10 Coffee Break and poster session
16:10-16:30 Application of magnesium fertilizer is urgent in Chinese agriculture
Chunjian Li
China Agricultural University, Beijing, China
16:30-16:50Magnesium nutrition and component metabolism analysis of tea quality following polyhalite application
Jianyun Ruan and Kang Ni
Tea Research Institute, Chinese Academy of Sciences, Hangzhou, China
16:50-17:10The importance of potassium in citrus production in China
Xiaojun Shi/Yueqiang Zhang
Southwest University, Chongqing, China
17:10-17:30 Effect of potassium on leaf vegetables and efficient potassium application technology
Wanyi Zhao/Zhengyin Wang
Southwest University, Chongqing, China
17:30-17:50 Polyhalite use in winter melon
Baige Zhang
Guangdong Academy of Sciences, Guangdong, China
17:50-18:10 Polyhalite use in pasture
Alberto Bernardi
Brazilian Agricultural Research Corporation (Embrapa) Southeast Livestock, Sao Carlos, SP, Brazil
18:10-18:20 General Discussion