Efficiency of the additional fertilization with nitrogen fertilizers growing carrot of exceptional quality and its influence on production storage
2014
Bundiniene, O., Lithuanian Research Centre for Agriculture and Forestry, Babtai, Kaunas distr. (Lithuania). Inst. of Horticulture | Zalatorius, V., Lithuanian Research Centre for Agriculture and Forestry, Babtai, Kaunas distr. (Lithuania). Inst. of Horticulture | Kavaliauskaite, D., Lithuanian Research Centre for Agriculture and Forestry, Babtai, Kaunas distr. (Lithuania). Inst. of Horticulture | Starkute, R., Lithuanian Research Centre for Agriculture and Forestry, Babtai, Kaunas distr. (Lithuania). Inst. of Horticulture
Plant nutrition, among other agro-technical measures most influences yield, quality and production storability. The aim of investigations – instilling new technological elements of the growing of root-crop vegetables of exceptional quality to choose for the additional fertilization the most suitable nitrogen fertilizer and its rate in order the soil, environment was polluted as little as possible and the qualitative production was obtained. There were grown carrot ‘Nerac’ F1 and ‘Tito’. There was investigated the influence of nitrogen fertilizer used for additional fertilization (ammonium nitrate and calcium nitrate) and their rates (N30 and N15) on carrot yield, and its impact on production storage. Additional fertilizations were carried out at 2–4 carrot leaves stage. Carrot were grown on profiled surface, sowing scheme 62+8, there were sown 1 mln. unt. haE-1 germinable seeds. Before sowing the field was fertilized with complex fertilizers. Carrots during vegetation period were additionally fertilized through leaves for three times applying soluble complex fertilizers. Experiments were carried out on sandy loam on light loam Calc(ar)i-Epihypogleyic Luvisol (LVg-p-w-cc). Data of investigations showed that carrot hybrid was more productive than cultivar. Calcium nitre was more effective both to hybrid and cultivar. Vegetables fertilized with it was preserved better than these fertilized with ammonium nitrate.
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