TY  - BOOK
AU  - Symposium on Research into Agro-technical methods. Aiming at increasing the productivity of crops-co-efficients for the most efficient use of fertilizer nutrients and means for reducing the losses of nutrients to the environment under the condi
TI  - Efficient use of fertilizers in agriculture; proceedings
T2  - Developments in Plant and soil sciences, vol.10
U1  - 631.8161983.1.17/.21 (082.2) M3 
PY  - 1983///
CY  - Hague
PB  - Martinius Nijhoff
KW  - Fertilizers,Plant Nutrition,Crop yields,Soil science,fertilizers
ER  -