The influence of organic fertilization as a summer catch crop ploughed as a whole plants or post harvest residues and manuring rye straw on yielding and dry matter and vitamin C content in white cabbage. The highest cabbage crops were obtained when tansy phacelia was ploughed under. Crops of cabbage were higher when the whole catch crop biomass was ploughed under than when the post harvest residues were ploughed under. Among the doses of rye straw used, the best crop-generating effect was displayed by straw dosed at 4 t·ha-1. There wasn’t found any decrease of the dry matter or vitamin C content under the influence of the tested kinds of the organic fertilization.

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