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- [3] SELENIUM CONTENT OF SOILS AND TIMOTHY (PHLEUM-PRATENSE L) IN FINLAND ANNALES AGRICULTURAE FENNIAE, 1979, 18 (03): : 182 - 187
- [6] EFFECT OF DAYLENGTH ON THE NITROGEN STATUS OF TIMOTHY (PHLEUM-PRATENSE L) ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE, 1992, 42 (01): : 62 - 68
- [10] ZONES FOR PERFORMANCE TESTING OF TIMOTHY (PHLEUM-PRATENSE L) IN THE NORDIC COUNTRIES ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE, 1993, 43 (02): : 97 - 113