一九七四年,我地区晚稻空瘪率显著增高,部分田块出现严重的翘稻头,直接影响产量。据本所在平原、山区、丘陵等不同类型地区的8个公社、15个大队、4个农场102块典型田的调查统计,在不同熟期的晚稻各品种中,以中熟晚粳、中粳(糯)及籼稻空瘪率较高,平均达36.1%,迟熟晚粳空瘪率较低,平均为20.1%。现将我们的调查情况综述如下。 In 1974, the empty-collapse rate of late rice in our region increased significantly. Some of the plots had serious tiller head which directly affected the output. According to the survey data of 102 typical fields in 8 communes, 15 brigade groups and 4 farms in different types of areas such as plains, mountains and hills, (Waxy) and indica rice had a higher emptying rate, with an average of 36.1%. Late rice had a lower emptying rate with an average of 20.1%. Now we survey the situation are summarized below.