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

सभी संस्करण दिखाएं (2)
ग्रंथसूची विवरण
मुख्य लेखक: Villegas, Leopoldo M. 1936-
स्वरूप: थीसिस
भाषा:English
प्रकाशित: 1966.
विषय:
Rice research.
Farmers > Philippines > Bulacan.