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Biological properties of soil below seminatural grassland with the application of mineral and organic fertilisers

机译:矿物质和有机肥矿床下土壤土壤的生物学特性

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The effects of mineral fertilisers (30 P + 60 K kg ha~(-1); 60 N + 30 P + 60 K kg ha~(-1)or 120 N + 30 P + 60 K kg ha~(-1)) and farmyard manure (12 or 24 Mg ha~(-1)) on the biological and agrochemical properties of soil were investigated in seminatural grassland during the years 2004-2007. The following parameters were investigated: the intensity of total N mineralisation (TMN), the rate of nitrification (NIT), the total C content in microbial biomass (MB-C), NH_4~+-N, NO3-N, C_(ox), N_t, P, K, Ca, Mg, pH, and the ratio of humic acids to fulvic acids (HA : FA). The research trial was established at the Radvan site (near Banska Bystrica, central Slovakia, altitude 480 m, loamy to sandy-loamy Cambisol). The application of manure showed the strongest effect on the research parameters. The increase in TMN and NIT was significant. The soil pH, MB-C, N_t, Mg. P and C_(ox) also increased.
机译:矿物肥料的影响(30p + 60kkg ha〜(-1); 60 n + 30 p + 60k kg ha〜(-1)或120 n + 30 p + 60k kg ha〜(-1) 2004 - 2007年期间,在农场草原上研究了对土壤生物和农业化学性质的养殖粪肥(12或24毫克HA(-1))。研究了以下参数:总N矿化(TMN)的强度,硝化率(NIT),微生物生物量(MB-C)中的总C含量,NH_4〜+ -N,NO3-N,C_(牛),N_T,P,K,Ca,Mg,pH和腐殖酸与ulvic酸(HA:Fa)的比率。在Radvan网站建立了研究审判(靠近班斯卡Bystrica,中央斯洛伐克,海拔480米,粘稠的砂质植物雪巴醇)。粪肥的应用表现出对研究参数的最强烈影响。 TMN和NIT的增加是显着的。土壤pH,MB-C,N_T,Mg。 P和C_(牛)也增加了。

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