Volume 6
Issue 2
Environmental Development
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Available Online: http://www.ejpau.media.pl/volume6/issue2/environment/abs-04.html
ALTERED PROPERTIES OF LIGHT SOILS IMPROVED WITH LIME-TREATED SEWAGE SLUDGE OR ITS MIXTURE WITH SUGAR BEET FLUME WASHING EARTH AND STRAW ASH
Roman Reszel, Hanna Reszel, Aleksandra Głowacka
ABSTRACT
In a 3-year pot experiment changes in selected properties of acid light loamy sand induced by lime-treated sewage sludge (LS) admixture were studied. Single LS admixtures were applied in the following doses: 2% and 5% that corresponds to 56 and 140 Mg·ha-1, respectively; the same amounts were mixed with sugar-beet flume washing earth from a sugar plant sediment tanks (for a 10% dose it corresponds to 280 Mg·ha-1) and ash from a straw-fired boiler (corresponding to 0.9 Mg·ha-1). The results were compared to a control sample (0 – soil only) and to a standard mineral NPK fertilisation for maize.
Key words: agricultural utilisation of sewage sludge, lime treated sewage sludge, sugar-beet washing earth from a sugar plant sediment tanks, sugar plant flumes, ash from straw-fired boiler..