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构成花生产量的果重因素,主要取决于结荚后的光合面积和中上部叶片的功能期。在花生栽培上适时防治叶斑病,保护功能叶,是增加光合产物的必要条件。为此,我们于1977年在县花生原种场进行了多菌灵防治叶斑病的小面积示范。1978年大面积使用。1979年起又进行了多菌灵防治花生叶斑病的不同时间、次数、方法和用量以及多菌灵加磷酸二氢钾混合使用的试验。这些试验在五个乡农科站同时进行,小区面积0.02亩,重复三次,供试品种是徐州68-4,多菌灵为25％粉剂,用量0.2～0.25斤/亩;磷酸二氢钾用量为0.2斤/亩。花生5月上旬播种,9月中旬收获。
The fruit weight of the peanut production depends on the photosynthetic area after podding and the functional period of mid-upper leaves. In peanut cultivation timely control leaf spot disease, the protection of functional leaves, is necessary to increase photosynthetic products. To this end, we in 1977 in the county peanut seed market carbendazim leaf spot prevention and control of small-area demonstration. 1978 large area use. Since 1979, Carbendazim leaf spot prevention and control of different times, times, methods and dosage and carbendazim plus potassium dihydrogen phosphate mixed use of the test. These experiments were carried out simultaneously in five township agricultural station, the plot area of 0.02 acres, repeated three times, the test varieties are Xuzhou 68-4, carbendazim 25% powder, dosage 0.2 ~ 0.25 kg / mu; potassium dihydrogen phosphate 0.2 kg / mu. Peanut sowing in early May, harvest in mid-September.