scholarly journals Effect of Biochar, Farmyard Manure and Nitrogen Fertilizers on Soil Chemical Properties in Sinana District, South Eastern Oromia, Ethiopia

Author(s):  
Abdurahman Husien
2010 ◽  
Vol 29 (4) ◽  
pp. 328-335 ◽  
Author(s):  
Yun-Im Kang ◽  
Mi-Young Roh ◽  
Joon-Kook Kwon ◽  
Kyoung-Sub Park ◽  
Myeong-Whan Cho ◽  
...  

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