在毛主席“备战、备荒、为人民”的伟大战略方针指引下,经过几年的实践,我们从大量测配组合材料中,选育成玉米杂交种“协单一号”及其父本自交系“协01”。1973年上造在阳山县农科所试种折亩产768.5斤,比本地白玉米亩产300斤增产120％。1974年上造继续在阳山县杜步公社更楼生产队试验,“协单一号”1.34亩,平均亩产855.5斤,本地红麦种1.412亩,平均亩产365斤,相比之下,“协单一号”较本地红麦增产 Under the guidance of Chairman Mao’s great strategy of “preparing for war, preparing for war and for the people”, after several years of practice, we have selected and popularized a large number of maize hybrids “Xieyi No.1” and its male parent inbred lines “Association 01”. In 1973, Yangshan County Agricultural Science Institute made a trial of yielding 768.5 kg per mu, 300 kg more than the local white corn yielding an increase of 120%. In 1974, the construction continued to be carried out in the production team of the Loufu Commune in Yangshan County, with a trial volume of 1.34 mu and an average yield of 855.5 kg and 1.412 mu of local red wheat, with an average yield of 365 jin per mu. In contrast, “Single No.” than the local production of red wheat