College of Agriculture and Biotechnology, China Agricultural University, Beijing 100193, P.R.China;
Key Laboratory of Farming System, Ministry of Agriculture, Beijing 100193, P.R.China;
Lawrence Berkeley National Laboratory, Earth Sciences Division, Berkeley, California 94720, USA;
College of Agriculture and Biotechnology, China Agricultural University, Beijing 100193, P.R.China;
Key Laboratory of Farming System, Ministry of Agriculture, Beijing 100193, P.R.China;
Institute for the Control of Agrochemicals, Ministry of Agriculture, Beijing 100125, P.R.China;
College of Agriculture and Biotechnology, China Agricultural University, Beijing 100193, P.R.China;
Key Laboratory of Farming System, Ministry of Agriculture, Beijing 100193, P.R.China;