Sigunga,D.O. <br/><br/>
Fertilizer nitrogen use effeciency and nutrient uptake by maize (Zea mays L) in Vertisols in Kenya 
O Sigunga 
 - Wageningen   Agricultural University  1977 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nitrogen Fertilizers
<br/><br/><label>LC Class. No.: </label>THE S 667 .C8S54