一、概述玉米是我国的主要粮食作物之一,在国民经济中占有重要地位。在玉米生长过程中,在其它条件相同的情况下,不同的气候条件使得玉米产量相差很大,玉米的产量与生长过程中的温度、降雨量、日照时数等气象因素有密切的关系。但是光有定性的认识对生产的指导是很不够的,要想充分利用气候条件,不增加投资而求增产,或者少投资多增产,就必须对玉米与气候之间 I. Overview Corn is one of the major grain crops in China and occupies an important position in the national economy. In the process of corn growth, under the same conditions of other conditions, different climatic conditions make the yield of corn vary greatly. The yield of corn is closely related to the meteorological factors such as temperature, rainfall and sunshine hours in the growth process. However, the qualitative understanding of the guidance of the production is not enough, in order to make full use of climatic conditions, without increasing investment and increase production, or less investment and more production, it must be between corn and climate