Journal of Food, Agriculture and Environment
Vol 12,
Issue 2,2014
Online ISSN: 1459-0263
Print ISSN: 1459-0255
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Changes in cation migration in luvisol resulting from the application of different forms of mineral fertilizers
Author(s):
Liudmila Tripolskaja *,
Ingrida Verbyliene, Almantas Razukas, Eugenija Bakšienė, Gvidas SidlauskasRecieved Date: 2014-02-11, Accepted Date: 2014-04-14
Abstract:Cation leaching from arable layer reduces the concentration of nutritious elements in the soil, adversely affects its sorption capability and physical properties, and increases the acidity. Aim of the research was to determine changes of the effects of liquid (complex NPK fertilizer Lyderis 9-9-9, liquid nitrogen fertilizer UAN 32) and granular (ammonium nitrate, superphosphate, potassium chloride) fertilizers on calcium and potassium migration in sandy loam luvisol. The experiment was conducted in lysimeter facilities (surface area 1.75 m2, soil depth 0.60 m). It was determined that, compared with unfertilized soil, leaching of calcium resulting from fertilization with mineral NPK fertilizers increased by 24.15-66.18 kg Ca ha-1 year-1 (P<0.05). Fertilizer Lyderis 9-9-9, which contains no calcium, produced lesser effect on the increase of calcium leaching (+23.6%). Superphosphate insertion increased leaching of calcium by 50.4-64.6% (P<0.05), compared with unfertilized soil. On average, 24.2-58.3 kg Ca ha-1 year-1 were leached from superphosphate (P120), the other part of the calcium loss was associated with changes in the sorption exchange due to fertilizer insertion. Changes of potassium concentration in the leachate caused by application of potassium fertilizer (K120) were insignificant (P>0.05). The leaching losses depended on precipitation filtration, so at a lower filtration in fertilized field, potassium leaching losses due to application of potassium fertilizer did not increase (P>0.05), and in soil fertilized with Lyderis 9-9-9, compared with unfertilized soil, leaching decreased by 2.06 kg K+ ha-1 year-1 (P<0.05). Form of fertilizers, i.e., liquid or granular, produced similar effect on atmospheric precipitation filtration changes (P>0.05).
Keywords:Granular fertilizers,
liquid fertilizers, potassium, calcium, leachingJournal: Journal of Food, Agriculture and Environment
Year: 2014
Volume: 12
Issue: 2
Category: Agriculture
Pages: 701-705
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