早秋蔬菜育苗异常苗的原因及防治措施袁卫红早秋季节气温高，土壤干燥板结，虫害多而严重，如育苗技术不佳管理技术不当，将出现多种异常幼苗，大大地影响蔬菜的产量和品质。从１９９４～１９９６年，我们对幼苗技术进行了观察试验，初步探明了几种异常苗出现的原因及有效... Causes and Prevention and Cure Measures of Early Seedling Abnormal Seedlings in Early Autumn Yuan Weihong In early autumn, the air temperature is high, dry soil compaction and insect pests are numerous and serious. If improper management techniques of nursery seedlings are applied, many abnormal seedlings will emerge, greatly affecting the yield and quality of vegetables. From 1994 to 1996, we observed and tested the seedling technology and found out the causes of the emergence of several kinds of abnormal seedling and its effective ...