MANURE MANAGEMENT SYSTEMS AND NITROGEN EMISSIONS IN LATVIA

Elita Aplocina, Aivars Aboltins, Juris Priekulis

Abstract


The information for the present overview on manure management in different countries was primarily gathered through a survey using Greenhouse Gas (GHG) Inventory reports. In Latvia, N2O emissions from manure management account for only 5 % of total N2O emissions. Dividing the N2O emissions by all livestock species, 75.9 % are produced by cattle, 12.67 % – by poultry, and 4.96 % – by pigs. In GHG Inventory reports, there are great differences in manure output calculations for all livestock species in different countries (V, % ≥ 20), because all livestock is included in the same group, without separating them according to age or size. Majority of the countries have adopted a significantly higher amount of excreted N with manure from dairy cows as compared to the norms set in Latvia. Especially large differences among the countries can be observed in the groups of fattening pigs and weaned piglets; therefore, additional clarifications are needed for Latvian regulations, as the normative data currently adopted in Latvia is outside the 95 % of the value range.

Keywords: GHG, manure, nitrogen emission.

Article DOI: http://doi.org/10.15544/RD.2015.047



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