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147. . . // : , ..-2018.-N 7.-. 76-82.-. .-.: .82. 1434.
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148. [ - . , ]. Ehirim N.C., Osuji E.E. Impact of sustainable soil management techniques on poverty levels of arable crop farmers in Imo state, Nigeria // Scientific Papers. Series "Management, Economic Engineering in Agriculture and Rural Development".-2017.-Vol.17,N 3.-P. 121-126.-.-Bibliogr.: p.125-126. *http://managementjournal.usamv.ro/index.php/scientific-papers/past-issues.
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149. [ . , ]. Osuji E., Ukoha O., Nwaru J., Onyenweaku C. Impact of sustainable soil management techniques on land productivity of arable crop farmers in Imo state, Nigeria // Scientific Papers. Series "Management, Economic Engineering in Agriculture and Rural Development".-2017.-Vol.17,N 3.-P. 271-276.-.-Bibliogr.: p.275-276. *http://managementjournal.usamv.ro/index.php/scientific-papers/past-issues.
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150. [ . , ]. Osuji E., Ukoha O., Nwaru J., Onyenweaku C. Impact of sustainable soil management techniques on net income of arable crop farmers in Imo state, Nigeria // Scientific Papers. Series "Management, Economic Engineering in Agriculture and Rural Development".-2017.-Vol.17,N 3.-P. 265-270.-.-Bibliogr.: p.269-270. *http://managementjournal.usamv.ro/index.php/scientific-papers/past-issues.
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151. [ ]. .. // .-2017.-N 2.-. 363-371.-. .-.: .371. 80002.
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152. . .. // .-2017.-N 4.-. 375-383.-. .-.: .383. 80002.
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153. . .. // .-2017.-N 4.-. 393-403.-. .-.: .403. 80002.
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154. [, .-. , . , ]. Yunusa P.M., Giroh D.Y. Determinants of youth participation in food crops production in Song local government area of Adamawa state, Nigeria // Scientific Papers. Series "Management, Economic Engineering in Agriculture and Rural Development".-2017.-Vol.17,N 3.-P. 427-434.-.-Bibliogr.: p.433-434. *http://managementjournal.usamv.ro/index.php/scientific-papers/past-issues.
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