Field demonstration its effects on level of knowledge, understanding and attitudes of farmers about choice of a rice variety and use of fertilizers

Field demonstration its effects on level of knowledge, understanding and attitudes of farmers about choice of a rice variety and use of fertilizers

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Opis bibliograficzny
1. autor: Villegas, Leopoldo M. 1936-
Format: Praca dyplomowa
Język:English
Wydane: 1966.
Hasła przedmiotowe:
Rice research.
Farmers > Philippines > Bulacan.