Dynamic of fractional composition of phosphorus compounds in dark-grey podsolic soil under the effect of liquid phosphorus fertilizers
Journal Title: «Таврійський науковий вісник» - Year 2018, Vol 101, Issue
Abstract
Potato plants take up relatively little phosphorus, but for their good growth, they need available phosphorus in the soil during the whole vegetation period. Maintaining the optimal level of available phosphates in the soil for a long time plays a very important role, especially for soils in which phosphates bind together cations in the soil solution and become almost unavailable compounds. One of the ways to deal with this negative aspect is using liquid phosphate fertilizers (LPF). These fertilizers include phosphates and polyphosphates. The investigation was conducted as part of field trials of Department of agrochemistry and quality of plant products named after Olexandr Dushechkin of National University of Bioresources and Nature Management of Ukraine. The field trials were performed in “Biotech LTD” in Boryspil district in Kyiv region in 2015, 2016, and 2017. The experimental plot was 40 m2 . The variants were located systematically in 3 replications. The investigation results show that LPF 11-37 application at a rate of Р105 at the background of N120K180 caused an increase in the content of water-soluble phosphates at germination up to 75.6 mg/kg, available phosphates (citrate soluble phosphates) to 225 mg/kg. Moreover, this method allows maintaining these indexes at levels from 59.8 to 74.2 mg/kg and from 207 to 226 mg/kg during plant vegetation. It provided a yield of 41.8 t/ha
Authors and Affiliations
А. В. Бикін, І. П. Бордюжа
Keywords
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