Sources of Nitrogen for Winter Triticale (Triticosecale Wittm. ex A.Camus) Succeeding Pea (Pisum sativum L.)

Atmospheric nitrogen biologically reduced in legumes root nodule and accumulated their postharvest residues may be of great importance as a source this macronutrient for succeeding crops. The aim the study was to determine uptake by winter triticale from pea residues, including N fixed atmosphere, using fertilizer enriched with 15N isotope. Triticale grown without fertilization at sites where forecrops had been two cultivars (multi-purpose field pea) and, comparison, spring barley. crop took up more soil (59.1%) less forecrop (41.1%). corresponding values barley were 92.1% 7.9%. In triticale, percentage derived introduced into amounted 23.8%. amounts all sources entire biomass plants after harvesting similar both cultivars. cereal sources, when on which experiment conducted higher content carbon greater amount residues. Nitrogen high availability cultivated sandy soils.