TY  - BOOK
AU  - Symposium of the American Society of Agronomy and Soil Science Society of America, Illinois, Nov.1974.
TI  - International and national outlook the necessity for efficient nutrient utilization; proceedings
T2  - ASA special publication; no.25
U1  - 631.81.031 1974 (082.2) L5 
PY  - 1975///
CY  - Wisconsin
PB  - ASA & SSSA
KW  - Nutrition Physiology,Soil nutrition
ER  -