TY  - BOOK
AU  - Layaoen, Heraldo L. 
TI  - Crop microenvironment modification through irrigation, mulching, row spacing and mixed cropping to optimize land and water use
PY  - 1981///
N1  - Thesis (PhD.Agronomy-Cropping Systems) -- University of the Philippines, Los Baños, Laguna; Bibliography: leaves 247-260
ER  -