Acta Univ. Agric. Silvic. Mendelianae Brun. 2011, 59(1), 113-120 | DOI: 10.11118/actaun201159010113

Changes of soil agrichemical characteristics in pastures influenced by mineral fertilizing

Stanislav Hejduk
Ústav výživy zvířat a pícninářství, Mendelova univerzita v Brně, Zemědělská 1, 613 00 Brno, Česká republika

Grasslands fertilizing is used for increasing of forage yields and quality and simultaneously for soil fertility maintenance. The aim of this study was to evaluate the effect of mineral fertilizing on basic agrichemical soil characteristics (pH, available nutrients) and soil organic matter at grazing exploitation of grasslands. 60 kg N.ha-1 was applied in the year of experiment establishment and 90 kg N, 30 kg P a 90 kg K ha-1 in each of following four years. Significantly higher pH (+0.17), available P (+48.5%), K (+15.4%) and organic C (+8.8%) content was found at fertilized treatment. pH value varied significantly during experiment period (range 0.6) and correlated inversely with proportion of white clover in first cut (r = -0.499). Although available K in soil was only on satisfactory level (less than good), K concentration in the forage was even from unfertilized plots higher than physiological requirement of plants. Available nutrient content constitutes only small proportion of total nutrient content: 5.1% at P, 2.1% at K, 12.0% at Mg and 39.0% at Ca.

Keywords: soil pH, soil organic matter, phosphorus, potassium, calcium, magnesium
Grants and funding:

This study was supported by the Research Plan No. MSM6215648905 financed by the Ministry of Education, youth and Sports of the Czech Republic.

Received: January 6, 2011; Published: July 10, 2014  Show citation

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Hejduk, S. (2011). Changes of soil agrichemical characteristics in pastures influenced by mineral fertilizing. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis59(1), 113-120. doi: 10.11118/actaun201159010113
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