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一、前言黑龙江省是我国玉米主要产区之一,每年种植玉米的面积仅次于大豆而居第二位,并且单位面积产量较高。本省玉米之所以高产,是与自然条件适合玉米的生长发育(如日照长,玉米抽穗前后雨水较多,土质肥沃等)以及耕作水平的不断提高有密切关系。特别是自从1958年以来,在总路线的光辉照耀下,不断出现了许多玉米高产记录。
I. Introduction Heilongjiang Province is one of the major corn producing areas in China. The area of corn planted each year ranks second only to that of soybean, and the yield per unit area is relatively high. The reason why the high yield of maize in the province is closely related to the natural conditions suitable for the growth and development of maize (such as the long sunshine, the rainy days before and after corn heading, the fertile soil, etc.) and the continuous improvement of cultivation level. In particular, since 1958, there have been many records of high yield of corn under the brilliant shine of the general route.