The effect of quickly fermented pig manure on the broccoli yield parameters
2008
Kovacik, P.,Slovenska Polnohospodarska Univ., Nitra (Slovak Republic). Katedra Agrochemie a Vyzivy Rastlin | Uher, A.,Slovenska Polnohospodarska Univ., Nitra (Slovak Republic). Katedra Zeleninarstva | Losak, T.,Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Ustav Agrochemie, Pudoznalstvi, Mikrobiologie a Vyzivy Rostlin | Takac, P.,Slovenska Akademia Vied, Bratislava (Slovak Republic). Ustav Zoologie
The effect of Difert (a pig manure fermented by caddices of domestic flies produced on sawdust litter) on broccoli yield and selected soil characteristics was investigated on gleic fluvisol in a small-plot field trial. The results showed that Difert applied in doses of 250 kg N ./ha and 350 kg N / ha acted positively, but not significantly, on the yields of fresh primary broccoli roses. A positive effect on N, P, K, Ca, Mg concentrations in broccoli roses was also recorded. Difert had a moderate alkalizing effect on soil and increased the content of Cox in the soil. Moreover Difert insignificantly decreased the vitamin C concentrations and significantly increased nitrates conc. in broccoli roses. The worst qualitative effect was detected when applying mineral N fertilizers, which significantly increased nitrates conc. and insignificantly decreased vitamin C conc. However, it resulted in highest broccoli yields. The application of mineral N fertilizers had a negative effect on the concentration of total carbon in the soil. The effect of Difert on broccoli yields and some soil characteristics indicates that it is possible to reduce the maturing period of the manure from 6 months to 1 week.
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