College of Resources and Environment Hunan Agricultural University / Hunan Provincial Key Laboratory of Farmland Pollution Control and Agricultural Resources Use / Hunan Provincial Key Laboratory of Plant Nutrition in Common University / National Engineering Laboratory of College of Resources and Environment Southern Regional Collaborative Innovation Center for Grain and 0il Crops in China Ch;
College of Environmental Science and Resources Zhejiang University Hangzhou 310058 China;
National Center of 0ilseed Crops Improvement Hunan Branch Changsha 410128 China;