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在我国,迄今为止,农业经济文献可谓是汗牛充栋。农业经济文献级次划分,可分为零次文献、一次文献、二次文献和三次文献。零次农经文献是未经发表的手稿、书信、讨论稿草案、原始记录等。现实的零次农经文献,则分散在当代农经工作者和农经科研人员手中。零次农经文献是现代信息社会颇重要的信息源和经济情报源之一。其本质特征具有时效性、浓缩性和准确性等。颇受当代农经工作者和世界各国农经情报机构的青睐。
In our country, so far, the agricultural economic literature can be described as numerous. The classification of agricultural economic literature can be divided into zero primary literature, primary literature, secondary literature and three literature. Zero times agricultural documents are unpublished manuscripts, letters, draft drafts, original records and so on. The real zero-sum agricultural documents are scattered in the hands of contemporary farmers and agricultural researchers. Zero times agricultural economics literature is one of the most important sources of information and economic intelligence in modern information society. Its essential features are timeliness, concentration and accuracy. Popular contemporary agricultural workers and the world’s agricultural intelligence agencies of all ages.