Rit Landbúnaðardeildar : B-flokkur - 01.12.1961, Page 52

Rit Landbúnaðardeildar : B-flokkur - 01.12.1961, Page 52
50 Eriksson, S., og Vestervall F., 1960. Nitratkvavet i nötkreaturens foder. Nordisk jorbrugs- forskning, 42, 83. Johnson, C. M. og Ulrich, A., 1959. Bulletin 766. University of California. Muhrer, M. E., Garner, G. B., Pfander, W. H. og O’Dell, B. L., 1956. The effect of nitrate on reproduction and lactation. J. Animal Sc., 15, 1921. Stewart, G. A. og Merilan, C. P., 1958. Effect of potassium nitrate intake on lactating dairy cows. Missouri Agr. Exp. Sta. Res. Bul. 650. Sund, J. M., 1959. Weeds cause abortion on lowland pasture. Hoard’s Dairyman, 104, 792. Sörensen, C., 1960. The influence of nutrition on the nitrogenous constituents of plants. II. Field experiments with heavy dressings of nitrogen to fodder sugar beets. Acta Agr. Scand., 10, 7.

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