Response of carrot (Daucus carota L.), to strip tillage and injection of liquid swine manure into plant row

Field study was conducted between 2011 and 2012 to determine the effects of liquid manure injected into plant row just before planting carrot in strip tillage. Strip tillage machine consisted of four units attached to frame. Every unit included shank, covering discs and rolling basket. The applicator consisted of a plastic tank mounted on the top of frame, valve, delivery hoses and injection tubes installed just after shanks. Average tillage depth was 20 cm and injection one: 10 cm. Strip tillage was compared with mouldboard ploughing. The new technology was safe for carrot plants. Plant emergence and root quality were not affected by injection of swine manure into plant row. Yield of roots obtained after mineral and organic fertilization was similar. Results of the study show, that injection of liquid swine manure in strip tillage is possible in carrot production, but further studies are needed to optimize technology.

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