00750nam a2200193Ia 4500 CTU_122836 210402s9999 xx 000 0 und d 631.62 I.61 Proceedings of the upland rice- based farming systems research planning meeting Mae Ping Hotel, Chiang Mai, Thailand, 28 April - 1 May 1992 sponsored by Department of Agriculture, Bangkhen, Bangkok, Thailand and International Rice Research Institute. Manila, Philippines International Rice Research Institute 1992 Agricultural systems,Upland rice Asia,Asia M.Loan, Huỳnh Mai Trung tâm Học liệu Trường Đại học Cần Thơ