Ayotade, K. A.  <br/><br/>
Effects of nitrogen on phosphorus, iron and zinc nutrition of rice in a Nigerian vertisol 
K. A. Ayotade 
 - Ibadan  University of Ibadan  1988 
 - xxix, 241p. ; ill. :  Hbk 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Assimilation of nitrogen ---Rice ---Nigeria--Plant food -
<br/><br/><label>LC Class. No.: </label>QK898 .N5 .A9 1988