Layaoen, Heraldo L. (Heraldo Libed). <br/><br/>
Crop microenvironment modification through irrigation, mulching, row spacing and mixed cropping to optimize land and water use / 
Heraldo L. Layaoen. 
 -  1981. 
 - xxv, 265 leaves :  mounted col. ill. ;  28 cm. 
<br/><br/> Vita. 
<br/><br/>Thesis (Ph.D.) - University of the Philippines, College, Laguna, 1981. 
<br/><br/>Bibliography: leaves [247]-260. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cropping systems--Philippines.<br/>Irrigation farming.<br/>Irrigation--Philippines.<br/>Mulching.<br/>Plant spacing.
<br/><br/><label>Dewey Class. No.: </label>Thesis 631.58 L451c 1981