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马铃薯(俗称洋芋)是隆德县山河公社二滩大队主要粮食作物之一,播种面积占粮食种植面积13.3％,产量占粮食总产量15.1％。1971年以来由于环腐病逐渐扩散和蔓延,播种面积不断缩小,产量逐年下降。1969年该大队马铃薯播种面积265亩,单产1,060斤;1970年播种面积269亩,单产910斤;1972年环腐病大量发生,大田普遍发病率在50.8％,这一年209亩平均单产仅710斤;1973年播种面积缩小到168亩,单产仅645斤。为了减轻其危害,提高产量,1974年我们在该大队进行了顶薯播种、整薯播种、芽栽以及0.1％和0.05％度米芬药剂浸种等防治试验,现将结果简报如下:
Potato (commonly known as potato) is one of the main grain crops of Ertan Brigade in Shandee Commune, Lund County. Its sown area accounts for 13.3% of the area planted with grain and its output accounts for 15.1% of the total grain output. Since 1971, due to the gradual spread and spread of ring rot, sown area has been shrinking, the output declines year by year. In 1969 the brigade potato planting area of 265 acres, yielding 1,060 catties; 1970 sowing area of 269 acres, yield 910 pounds; ring rot occurred in large numbers in 1972, the common incidence rate of 50.8% in the field, the average yield of 209 acres this year, only 710 Kg; 1973 sown area reduced to 168 acres, yield only 645 pounds. In order to reduce its harm and increase production, we conducted the top seed sowing, whole potato sowing and bud planting in 1974, and the soaking test of 0.1% and 0.05% domiphenfen, the results of which are summarized as follows: