Open AccessA szervetlen-C és a szerves-C mennyiségének változása egy homoktalajban, meszezés hatására
Author(s) -
Péter Tamás Nagy,
Tibor Filep,
Sándorné Kincses
Publication year - 2002
Publication title -
acta agraria debreceniensis
Language(s) - English
Resource type - Journals
ISSN - 2416-1640
DOI - 10.34101/actaagrar/1/3512
Subject(s) - lime , chemistry , total organic carbon , soil ph , avena , zoology , soil test , agronomy , environmental chemistry , soil water , soil science , environmental science , biology , paleontology
The effect of liming on different organic and inorganic carbon forms in soil was studied in a pot experiment on acidic sandy soil (pH(H2O)=4.38; pH(KCl)=3.42). We used three kinds of liming doses (which were signed M1, M2, M3,). M1 was half of the M2 dose; M2 was the calculated lime dose and M3 was one and the half dose of M2. Lime (CaCO3) was mixed into the soil in powdery form. In addition to liming treatments, a uniform N, P and K treatment (1-1-1g N, P2O5 and K2O per pot) was given. Water supply was set up to 75% field water capacity of soil. Pots were watered daily. During the vegetation period soil and plant (oats; Avena sativa L.) samples were taken from each treatment three times (after 6-10-15 weeks). We determined inorganic- and total-C of the soil by Vario EL element analyser (based on dry combustion method) and calculated the organic-C.The conclusions can be summarized as follows:– Liming treatments had a significant positive effect on the soil-pH and caused quantitative change of different carbon forms of soil.– Increasing tendency of liming doses caused more intensive changes in inorganic- and organic-C forms of soil.– A significant correlations was found between the soil pH and the inorganic-C fraction of soil.– A decreasing correlation was found between the vegetation period and the organic-C fraction.