Abstract
The experimental design included seven cover crop species and six kinds of soil tillage in the field cultivation of carrot. The use of cover crops had a positive impact on the yield of marketable roots of carrot in comparison with the cultivation without the cover crops. A significant increase of marketable yield was noted after phacelia, buckwheat, mustard and sunflower. The flat ploughless tillage significantly reduced the marketable yield of roots in comparison with traditional ploughing. The largest marketable yield of roots was obtained from cultivation on ridges after mixing the biomass of buckwheat or phacelia or mustard with the soil, and the smallest, after reduced spring tillage using aggregate without cover crops. The largest marketable yield in flat ploughless tillage was obtained when using grubber before winter, and the biomass of phacelia was mixed with soil. Growing carrot on the ridges had a positive influence on increasing the share of the marketable yield of roots in comparison with other variants of cultivation including the conventional tillage. The all cover crops with the exception of spring vetch significantly increased the share of marketable roots in the yield compared with cultivation without cover crops. The largest percentage of the marketable yield was noted after use of phacelia.
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