由中国农学会主持,中国耕作制度研究会、中国农业气象学会、甘肃省农学会主办的北方旱地农业学术讨论会于1986年9月28日至10月1日在兰州召开。与会的160名专家,本着“百花齐放、百家争鸣”的精神,对我国北方干旱地区的农业发展途径、战略以及旱地农业的理论问题作了充分的讨论。特别是对我国北方主要 Chaired by the China Agricultural Society, China Farming System Research Association, China Agrometeorological Society, Gansu Agricultural Association sponsored the northern dry land agriculture Symposium held in September 28, 1986 to October 1 in Lanzhou. The 160 experts attending the symposium fully discussed the agricultural development approaches, strategies and the theoretical issues of dry land agriculture in the arid areas of northern China in the spirit of “letting all flowers bloom and all schools contend.” Especially to the north of our country