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偃师四号是偃师县农科所从河南省农科院引进的〔(郑引四号×郑州17)×6609〕早代材料中系统选育出的小麦新品种。经全省有关单位进行区域鉴定,被评为优良品种。我校从1977—1980年连续对该品种生育特点和高产栽培技术进行了观察研究,现报告如下: 一、产量表现三年来,我们在校农场(偃师)高肥水地试验,虽然经历了1977—1978年的干旱、冬暖,1978—1979年的倒春寒和1979—1980年的冬冷、春寒,由于良种良法配套,仍使亩产稳定在900斤以上,最高亩产(1.13亩)达1,030斤。其中1978年亩产966.2斤,1979年亩产937斤,1980年亩产913.5斤。三年共种8.45亩,平均亩产953.2斤,与对照郑引一号相比增产10—15％。
Yanshi No. 4 Yanshi Agricultural Science Institute of Henan Province from the introduction of the Academy of Agricultural Sciences [(Zheng Yin No. 4 × Zhengzhou 17) × 6609〕 early generation materials in the system of breeding new wheat varieties. By the relevant departments of the province for regional appraisal, was rated as good varieties. Our school from 1977 to 1980 consecutive varieties of reproductive characteristics and high-yielding cultivation techniques were observed and studied, are as follows: First, the performance of three years, our school farms (Yanshi) high-fertility test, though experienced 1977 - The drought in 1978, the warm winters in winter, the late spring in 1978-1979 and the cold winters and cold spells in 1979-1980 still maintained a stable yield of more than 900 kg per mu and a maximum of 1,030 mu per mu (1.13 mu) jin. Among them, 966.2 kg per mu were produced in 1978, 937 kg per mu in 1979 and 913.5 kg per mu in 1980. A total of 8.45 acres of three years, the average yield of 953.2 kg per mu, compared with the control of Zheng cited an increase of 10-15%.