作物产量预报是气象为农业服务的重要课题。及时、准确的作物产量预报,是国家计划部门制订进出口计划,有计划地安排国民经济所不可缺少的依据,也是农业领导部门十分关注的问题。本文针对上海地区主要作物产量不稳与气候条件的关系,从农业气 Crop yield forecasting is an important issue for meteorological services in agriculture. Timely and accurate crop yield forecasting is an indispensable basis for the planning of national import and export plans by the state planning department and the planned arrangement of the national economy. It is also a matter of great concern to the leading agricultural departments. This paper aims at the relationship between the instability of main crop yield and climatic conditions in Shanghai, from agricultural gas