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In the years 2005-2008, the trials were established on two soils, rye and wheat complexes in Swadzim, in the fields of the Experimental and Didactic Station Gorzyń, of the Poznań University of Life Sciences. The purpose of the study was to determine changes in selected physical properties of soils under the influence of natural fertilizers, straw or winter intercrop under maize grown for silage in...
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