TY - BOOK AU - Pierre,W.H. ED - Iowa Agriculture and Home Economics Experiment Station. TI - Plant environment and efficient water use U1 - 631.7 PY - 1966///?] CY - Madison, Wis PB - American Society of Agronomy and Soil Science Society of America KW - Plants KW - Water requirements KW - Water conservation N1 - "Papers ... presented in a symposium sponsored by the Agricultural Experiment Station of Iowa State University ... [et al.] ... November 30 and December 1, 1965." ER -