Yield and seed quality of tall fescue (Festuca arundinacea Schreb.) produced on degraded soil during the reclamation proces

Abstract

This paper presents the results of a two-year research of influence of growing doses of nitrogen on yield and quality of seed of tall fescue produced on the deposol (degraded soil) of external stockpile for overburden from the open mine Raškovac - Stanari. Field factorial experiment was set up by randomised block design with four replications. During the tests, the influence of increasing doses of nitrogen (40, 60 and 80 kg ha-1 N)on yield and seed quality of tall fescue was monitored in comparisonwith the control variant. The obtained test results indicate that the application of increasing doses of nitrogen had a major impact on the seed yield, seed weight and size of 1,000 (largeness) tall fescue seed. The highest average seed yield (223.8 kg ha-1) was achieved with a dose of 60 kg ha-1 N. The lowest variation, that is, the greatest stability of seed yield during the two-year investigation was achieved using doses of 40 kg ha-1 N. Application of nitrogen of 80 kg ha-1 achieved the highest average weight of 1,000 seeds (1.52 g) and largest size (largeness) of tall fescue seeds (645 seeds/g).

Keywords

• deposol
• nitrogen
• yield
• quality
• seed
• stanari