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在党的“大办农业、大办粮食”的方針指导下,我县把推广玉米双交种做为一項重要内容。由于原种缺乏,一九六○年国家共分配給我县自交系、单交种种子九十一点八斤。为了提高繁殖系数,采用“单粒点播”方法,共繁育制种八十二点八斤,收获了自交系种子四千二百九十三斤,配成单交种一千一百另六斤、双交种七千六百斤。一九六一年收获了自交系种子一千二百十七斤,配成单交种七千八百一十二斤、双交种十二万九千四百斤。在繁育制种的同时,一九六○年示范了双交种一百八十亩,一九六一年示范了一千二百亩,均普遍获得增产,双交种在羣众中树立了威信。为了今后进一步做好玉米双交种的推广工作,一九六一年秋收结束后,我们在繁育、示范玉米双交种的刘家院、樊家坡等十余个生产大队进行了調查訪問,初步明确了以下几个問題:
Under the guidance of the party’s guideline of “running agriculture largely and running large-scale food”, our county made promotion of double crossbreed varieties as an important content. Due to the lack of original species, in 1960, the country was allocated to our county inbred lines, with a single seed of 91.8 kg. In order to improve the breeding coefficient, the “single grain on demand” method, breeding a total of 82 kilograms of harvested inbreds seed 4,293 catties, dubbed a single cross one thousand one hundred and another six Kg, double cross kind of seven thousand six hundred jin. In 1961, the seeds of the inbreds were harvested 1,227 catties, making up a total of 7,181 catties of single-breed ones and 120,994 catties of double-breed ones. At the same time as breeding and breeding, about 180 mu of double crosses were demonstrated in 1960, and a total of 1,200 mu was demonstrated in 1961, both of which were generally boosted. Double crosses were set among the masses prestige. In order to further promote the promotion of double breeding of maize in the future, after the autumn harvest in 1961, we conducted a survey and interview with more than 10 production brigades such as Liu Jiayuan and Fan Jiapo, who breed and demonstrate corn double crossbreed. Some Problems: