المؤلفون: S K Nganga, J Kungu, N De Ridder, M Herrero

المساهمون: The Pennsylvania State University CiteSeerX Archives

المصدر: http://www.ku.ac.ke/schools/environmental/images/stories/docs/profit_efficency_among_kenyans.pdf.

وصف الملف: application/pdf

Relation: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1081.4782; http://www.ku.ac.ke/schools/environmental/images/stories/docs/profit_efficency_among_kenyans.pdf

الاتاحة: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1081.4782
http://www.ku.ac.ke/schools/environmental/images/stories/docs/profit_efficency_among_kenyans.pdf

المؤلفون: J Mugwe, D Mugendi, J Kungu, M Mucheru-Muna

المصدر: African Crop Science Journal; Vol 15, No 3 (2007)

مصطلحات موضوعية: Crop production, organic materials, soil fertility, Zea mays

وصف الملف: application/pdf

Relation: http://ajol.info/index.php/acsj/article/view/54424

الاتاحة: http://ajol.info/index.php/acsj/article/view/54424