1994 * V * 2


M. Järvan. The dependence of nitrate content of vegetables on biological peculiarities and growth conditions ... 149
R. Kalmet, S. Kartau. The influence of some heavy metals (C, Mo, Mn, Co) and boron on the protein content of fodder cultures and amino acid contents ... 170
K. Annuk. Yield dynamics of timothy according to age ... 180
E. Must. Study of milk cooling methods on homestead dairy farms ... 190
A. Lember. Protein requirement of sows during the reproductive cycle. 1. The influence of protein content of the ration during pregnancy on the reproductive cycle ... 198