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accelerate increased production achieving activities Agrarias agricultural services agronomic risk agronomists amount and distribution arable land Banco Cano CIMMYT commercial components considered conventional approach coordinated corn production Cost-benefit analysis Crop insurance Duran Eckstein economic effective Ejidal Ethiopia factors Families live farm operators Farmer organizations farmers are participating fertilizer hectare high yield plots highly important increasing agricultural production informacion para elevar institutions investments in inputs involved irrigated irrigated lands large numbers maize marketing Mexican agriculture moderate to high national agricultural product number of farmers number of participants objectives opportune participating farmers Plan Puebla political environment Postgraduate College production among small production on small Project area Puebla Project rainfall rainfed agriculture rainfed areas rapidly increase recommended technology sample survey small holding problem socio Subsistence agriculture subsistence economy subsistence levels technical sector technical team three sectors Tlaxcala ton/ha traditional farming type of agriculture Veracruz yield plantings