Production of quality feed using different growing technologies in barley
2003
Malecka, S. | Krotovs, M. (State Stende Plant Breeding Station (Latvia))
Barley varieties for feed were cultivated in the field at the State Stende Plant Breeding Station, 2001-2002. The barley was grown on sod podzolic loamy soil with neutral reaction and high phosphorus-potassium supplement. The fertiliser NPK (18:9:9) was applied broadcast at the rate of 330 kg ha*[-1), and ammonium nitrate (NH4N03 - 34 %) was applied at the growth stage (GS) 31-33. The barley-seeding rate was 450 germination seeds per 1 square m. The field experiment was carried out for 2 years (factor A), 12 different varieties (factor B), and 3 growing technologies technologies (N60+H, N60+30+HRF, N60+60+HRF) (factor C) in 4 replicates. Pesticides treatments included the use of florasulam (50 g a.i. l*[-1)) 60 ml ha*[-1) and tribenuron-methyl (750 g a.i. kg*[-1)) at GS 26-29 (H), mepicvat chloride (305 g a.i. l*[-1)) and etephon 155 (g a.i. l*[-1)) 0.5 GS 37-49 (R), epoxiconozol (84 g a.i. l*[-1)) and fenpropimorph (250 g a.i. l*[-1)) 1.25 l ha*[-1) at GS 47-49 (F). Grain yield per ha, the crude protein content, 1000-kernel weight and volume weight were measured. In the years 2001 and 2002 meteorological conditions were not typical from yield formation aspect. The year 2001 was characterised with wet and warm weather in late June-early July, but in 2002 dry conditions prevailed and end of July was warm.
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