1996 * VII * 3

CONTENTS

SCIENTIFIC WORK
E. Turbas. The effect of 20 years of regular liming and fertilization on soil properties ... 233
O. Põldmaa. Dairy farm information system and it’s main parts ... 258
K. Annuk. Removal of nitrogen, phosphorus, potassium and calcium from alluvial swamps with yield of cereal grass stand utilized for cutting ... 270
E. Must. Cooling of milk in the case of milk transportation from farm every other day ... 281
Ü. Pavel. Some thoughts about phytohygiene ... 293