Entry Topical Term

Number of records used in: 13

001 - CONTROL NUMBER

• control field: 152970

150 ## - HEADING--TOPICAL TERM

• Topical term or geographic name as entry element: Soil fertility

670 ## - SOURCE DATA FOUND

• Source citation: Work cat.: (OSt)107885: Ecofarming practices for tropical smallholdings, research and development in technical cooperation6, 1989