Influence of fertilization rates on species composition, quality and yields of the meadow fodder

J. Mrkvička and M. Veselá
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J. Mrkvička: Czech University of Agriculture in Prague, Czech Republic
M. Veselá: Czech University of Agriculture in Prague, Czech Republic

Plant, Soil and Environment, 2002, vol. 48, issue 11, 494-498

Abstract: Four variants in four replications were studied on permanent meadow stand on Czech and Moravian highlands. The altitude a.s.l. is 485 m, original growth type was Dactylidetum, association Trifolio-Festucetum rubrae. Four variants: control (without fertilization), 40 kg P + 100 kg K/ha, 100 kg N/ha (+ PK) and 200 N/ha (+ PK) were evaluated. Botanical analyses of stands were done by the method of reduced projective dominance (D in %). The cut green matter was weighed up, mean samples for dry matter determination and chemical analyses were taken. Botanical composition of the meadow stand in 1991-2000 was not stabile and was changing due to nourishment. The yields of dry matter ranged within 10 years in the control variant from 1.07-3.42 t/ha (in the plot fertilized by P40K100 2.09-5.95 t/ha, in the plots with nitrogen (+ PK) 2.29-6.52 t/ha, resp. 3.74-7.61 t/ha). According to the t-test, the yields of dry mass in experimental variants are significant at 95% level.

Keywords: permanent meadow stand; fertilization; species richness; yields; concentrations of elements (search for similar items in EconPapers)
Date: 2002
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DOI: 10.17221/4402-PSE

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