engleski

C-CO2 emissions from soil in triticale vegetation

Agricultural soil management (tillage, fertilization, irrigation, ...) can have a crucial influence on the emission of CO2 from the soil, soil organic carbon sequestration or soil health (fertility and quality). Due to the lack of research and our own national data related to the topics of soil respiration (CO2 or flux) in the real agroclimatic conditions of Western Pannonian agricultural subregion, on the edge of the Nature Park Lonjsko polje, field experiment was conducted. At 2014 the effect of mineral fertilizer (N + P + K) on CO2 emissions from soil during the cultivation of triticale (sowing / harvesting = 24.10.13./18.07.14.) was determined. Experiment trial was conducted in 1996 with the aim of determining the effect of nitrogen fertilization on the yield of different agricultural crops, and on the quality of groundwater and surface water (primarily NO3-). At 2011 research was extended to the monitoring of fertilization impact on the atmosphere (CO2 emissions). The experiment consists of 10 treatments (each in 4 replicates), which differ in the applied nitrogen doses (from 0 up to 300 kg N/ ha), total size of the experiment is nearly 4.5 ha, type of soil is drained lowland distric Stagnosols. The area has typical temperate continental climate. From October 2013 to November 2014 seven measurements were conducted. Mean annual values of C-CO2 flux ranged from 10.4 kg / ha × day noted in the variant no. X (black fallow-tillage without sowing) up to 26.1 kg / ha × day recorded in the variant no. I (control-unfertilized) and VI (with applied 250 kg N / ha).

triticale; fertilization; C-CO2 efflux; soil respiration

nije evidentirano