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vol. 11, nr. 3 (2008)
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Influence of nitrogen doses on the content of Ca, Mg, S and Na in biomass of Sida (Sida hermaphrodita Rusby)
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Stanisław Kalembasa, Beata Wiśniewska
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Soil Science and Plant Nutrition, Academy of Podlasie, ul. Prusa 14, 08-110 Siedlce |
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vol. 11 (2008), nr. 3,
pp. 667-675
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abstract:
The determination of the influence of nitrogen doses on the content of Ca, Mg, S and Na in biomass of Sida was the aim of a field experiment. The scheme of the experiment included three levels of nitrogen doses: 50, 100 and 150 (kg per ha) on the background of fertilisation with phosphorus (80 P2O5 kg per ha) and potassium (120 K2O kg per ha). The samples of Sida biomass were collected three times in the vegetation period (July, September and December) in which the total content of Ca, Mg, S and Na was determined by the ICP–AES method. The content of Ca, Mg, S and Na increased under the influence of increasing nitrogen doses.
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keywords:
Sida hermaphrodita, biomass, fertilisation, uptake
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original in:
Polish
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