TY  - BOOK
AU  - P R HESSE
TI  - THE COMPARATIVE EFFECTS UPON SOIL FERTILITY OF MINERAL FERTILIZERS AND ORGANIC MANURES WHEN USED SEPARATELY AND TOGETHER
U1  - P631.42H463C 
PY  - 1900///
PB  - FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS
KW  - THE COMPARATIVE EFFECTS UPON SOIL FERTILITY OF MINERAL FERTILIZERS AND ORGANIC MANURES WHEN USED SEPARATELY AND TOGETHER
ER  -