The effect of pig manure fermented by larvae of house flies on the yield parameters of sunflowers (Helianthus annuus L.)
2010
Kovacik, P.,Slovenska Polnohospodarska Univ., Nitra (Slovak Republic). Katedra Agrochemie a Vyzivy Rastlin | Kozanek, M.,Slovenska Akademia Vied, Kosice (Slovak Republic). Ustav Zoologie | Takac, P.,Slovenska Akademia Vied, Kosice (Slovak Republic). Ustav Zoologie | Gallikova, M.,Slovenska Polnohospodarska Univ., Nitra (Slovak Republic). Katedra Agrochemie a Vyzivy Rastlin | Varga, L.,Slovenska Polnohospodarska Univ., Nitra (Slovak Republic). Katedra Agrochemie a Vyzivy Rastlin
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 of sunflowers was investigated on Haplic Luvisol in a pot trial. 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. The application of fermented manure resulted in significantly 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 of fermented manure was insufficient. When comparing the doses of 4, 6 and 8 t/ha of fermented manure the highest achene yield was achieved at the dose of 8 t/ha 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) the best results were achieved with the treatment where fermented manure at the dose of 8 t/ha was applied. Our results show the usefulness of manure processed by larvae of flies. The manure fermentation period can be significantly shortened, whereby reducing the storage difficulties.
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