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1. Mineral content of grain yield of cereals and the effect of fertilization on it

3. The temperature of peat soil at Leteensuo

4. Points to be considered in the establishment of long-term field trials

6. Syysviljojen talvituhosienien torjunta PCNB:llä

7. Some features in the Finnish climate affecting cereal harvesting

8. The effect of claying carried out in 1923 upon the thermal conditions in cultivated Sphagnum peat soil in the summer of 1959

9. The ash content of the plough layer of peat lands cultivated by different methods

10. Results from a soil improvement and fertilizing test on fen land at Leteensuo

11. Fertilization of Sphagnum bogs, on the basis of certain field experiments at Leteensuo

12. The pH-reaction of the peat in long-term soil improvement and fertilizing trials at the Leteensuo experimental station

13. Klormekvatin (CCC) vaikutuksesta viljakasvien satoon ja kasvutapaan

15. The effect of nitrogen fertilization on the humification of the peat in cultivated Sphagnum bogs

16. The significance of nitrogen mobilization with respect to the development of barley

18. Results of tests made with placement fertilization on the Kotkaniemi experimental farm

20. The effect of claying upon the settling of the soil surface on cultivated Sphagnum bogs

21. Autumn and winter application of nitrogen fertilizers on clay soils

22. The volume weight of the organic matter in the plough layer of peat lands cultivated by different methods

23. Fen fertilization with potash in the light of tests at Leteensuo experimental station

25. Fertilizing experiments with anhydrous ammonia at Kotkaniemi

26. The Role of Firms in Technological Change — A Company View

27. Syysviljojen talvituhosienien torjunta PCNB:llä

29. Results of tests made with placement fertilization on the Kotkaniemi experimental farm

30. Autumn and winter application of nitrogen fertilizers on clay soils

31. Klormekvatin (CCC) vaikutuksesta viljakasvien satoon ja kasvutapaan

32. Typen mobilisaation merkityksestä ohran kehitykseen

33. Viljasadon kivennäisainepitoisuuksista ja lannoituksen vaikutuksesta niihin

34. Mutasuon maanparannus- ja lannoituskokeen tuloksia Leteensuolta

35. Viljeltyjen turvemaiden muokkauskerroksen tuhkapitoisuudesta

36. Rahkasuon lannoitus eräiden Leteensuon kokeiden perusteella

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