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

عرض كل الإصدارات (2)
التفاصيل البيبلوغرافية
المؤلف الرئيسي: Villegas, Leopoldo M. 1936-
التنسيق: أطروحة
اللغة:English
منشور في: 1966.
الموضوعات:
Rice research.
Farmers > Philippines > Bulacan.