Acta Univ. Agric. Silvic. Mendelianae Brun. 2010, 58, 147-154
Published online 2014-10-01

The effect of pig manure fermented by larvae of house flies on the yield parameters of sunflowers (Helianthus annus L.)

Peter Kováčik1, Milan Kozánek2, Peter Takáč2, Martina Galliková1, Ladislav Varga1

1Slovenská poľnohospodárska univerzita v Nitre, Fakulta agrobiológie a potravinových zdrojov, Katedra agrochémie a výživy rastlín, Tr. A. Hlinku 2, 949 76 Nitra, Slovensko
2Ústav zoológie, Sekcia molekulárnej a aplikovanej zoológie, Slovenská akadémia vied, Dúbravská cesta 9, 845 06 Bratislava, Slovensko

The effect of fermented pig manure processed on a bed of wooden shavings and fermented for seven days by larvae of house flies on the yield parameters of sunflowers have been investigated on Haplic Luvisol in the pot trial realized in vegetative cage placed on the territory of SAU in Nitra. The experiment consisted of six treatments (0, NPK, Manure1, Manure2, Manure3, Veget). Treatments 0, NPK, and Veget were compared with the treatments Manure1, Manure2, and Manure3, i.e. with fermented manure applied at doses of 4, 6, and 8 t . ha−1.
The results showed that application of fermented manure resulted in statistically significant greater stem thickness, higher leaf chlorophyll content, composites and harvest yield of seeds. The plants appeared healthy. Increasing the doses of fermented manure resulted in greater harvest yield of achenes and fat content in them. The dose of 4 t . ha−1 of fermented manure has proven to be insufficient.
Out of the tested doses of 4, 6 and 8 t . ha−1 of fermented manure the highest achene yield has been achieved at the dose of 8 t . ha−1 but it was lower than the yield of the treatments fertilized by NPK fertilizers or Veget. From the viewpoint of achene yield quality (fat content) out of six variants the best parameters were achieved with the treatment where fermented manure at the dose of 8 t . ha−1 was applied.
The gathered data point towards the applicability and usefulness of manure processed by larvae of flies in agronomy. It is of note, that the manure fermentation period can be significantly shortened, whereby reducing the storage difficulties.


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