Studies on the influence of organic and mineral fertilization on the biological activity of highland pasture soils. The influence of folding of sheep and mineral fertilization on microflora associations of fallow soils approaching Galdioleto-Agrostidetum association
Smyk, Bolesaw; Mikowska, A.
Rocz Nauk Rolnicz Ser F 72(3): 1087-1130
The influence of folding of sheep and mineral fertilization on microflora associations of fallow soils approaching Gladioleto-Agrostidetum association. The following microbiological investigations were undertaken: (1) Determination of the total number of microorganisms (bacteria in vegetative and spore form) actino-mycetes and fungi; (2) Determination of the number of ammonifiers; (3) Determination of the number of nitrifiers; (4) Determination of the number of denitrifiers; (5) Determination of free nitrogen assimilator (number of Azotobacter) anaerobic assimilators of free nitrogen) and Rhizobium; (6) Determination of the cellulose decomposition energy and; (7) Determining the interrelation between the microbiological state of activity, and the quantity and quality of yields in proper fertilization combinations. The following are the conclusions: (1) Use of mineral fertilizers, folding and folding with an addition of mineral fertilizers exerted a favorable influence from a microbiological aspect; (2) Night folding 2 m2 per sheep with an addition of mineral fertilizers exerts the most favorable influence on the formation of microbiological processes; (3) Application of day and night folding 1 m2 per head increases the total number of microorganisms (bacteria, fungi and actinomycetes) and the biochemical activity of various soil microflora associations. Application of mineral fertilizers (PKN) exerts a favorable influence on increasing the amounts of free nitrogen assimilators (Rhizobium Azotobacter). The total number of microorganisms and activity of specific physiological groups (with the exception of denitrifiers) is considerably greater as compared to other fertilizer combinations.