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Bulgarian Journal of Crop Science   ISSN 0568-465X
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Influence of foliar fertilization on the productivity of zucchini squash (Cucurbita pepo L. var. giromontia)
Dimka Haytova
Abstract: The main aim of this study was to investigate the influence of various complex foliar fertilizers on the productivity of zuc¬chini squash. The experiments were carried out during the period 2007-2009, on Experimental field of Department of Horticul¬ture at the Agricultural University of Plovdiv. Variety Izobilna F1 was used as a object of the experiments. The field experiments were done by randomized block design with four replications. Complex foliar fertilizers Fitona 3, Hortigrow and Humustimin in three concentrations, separately and in background on soil fertilization N16P16K16 were used. Early yield (from first five har¬vests), total yield (resulting production of all harvests in vegetation) and dynamic of fruitfullness were determined. The results of this experiment indicate that foliar fertilization with complex foliar fertilizers Fitona 3, Hortigrow and Humustim increase the productivity of zucchini. The biological effects of foliar fertilization was demonstrated the best results in variant whith soil fertilization N16P16K16 and foliar fertilization with Humustim – 0.3%. There the highest early and total yield were presented. The increase of early yield in comparison with control is with 698.348 kg/da more and the total yield of higher with 72.71%.
Keywords: zucchini squash; Cucurbita pepo var. giromontia; foliar fertilization; yield
Date published: 2017-01-25
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