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1974—1984年在宁夏山区8个县及引黄灌区部分县对马铃薯病害进行了普查。记载了发生较重的真菌病害7种、细菌病害四种、放线菌病害1种、病毒病病害9种,总计21种。田间肉眼可见总病株率平均51.9%,是造成本区马铃薯单产降低的主要原因。在病害中发生最严重的是病毒病,占44.34%,其中以花叶型最多、卷叶型次之,矮生型分布最少。从70年代的
During 1974-1984, potato diseases were surveyed in 8 counties in mountainous areas of Ningxia and in some counties in the Yellow River Diversion Irrigation District. There were 7 serious fungal diseases, 4 bacterial diseases, 1 actinomycetes disease, 9 disease diseases and 21 diseases in total. The total naked eye visible total field plant rate of 51.9%, is to reduce the yield of potato in the region the main reason. The most serious disease occurred in the virus disease, accounting for 44.34%, of which the largest mosaic type, leaf volume followed by the shortest type distribution. From the 70’s