Özet:

ÖZET Bu araştırmada, Erzunon /araç şartlannda ye~tirilen adi otlak ayngı (Agropyron cristatwn (L.) Geartn)'na uygulanan degişik sıra aralıgı (40, 80 ve 120 cm) ilefarklı azol (0,5 ve LO kg N/da) ve fosfor (0,25 ve 5 kg P205/da) dozlarınınkuru ol ve ham proıein verimi ile Dlun ham protein oranına eıkileri incelenmiştir. 1978-1984 döneminde yürüıülen bu araştırmadan elde edilen sonuçlar, aşagzdaki şekilde özetlenmiltir. 1. En yüksek Jauu ol verimi (354.1 kg/da) 40 cm; ham prolein verimi 80 ve 40 cm (41.6 ve 39.8 kg/da); ham pr41ein oranı ise 120 ve 80 cm (% 12.86 ve 12.77) sıra arabgı uygulamalanndan alınmıştıli. 2. En yüksek kuru ot ver/mi (406.1 kg/da), hamprotein verimi (58.1 kg/da) ve ham protein oranı (%14.47) LO kg (V/da uygulamasından elde edilmiştir. 3. Fosforun, Jauu ot ve hamproıein verimi ile otun ham protein oranına etkisi olmamıştır. THE EFFECTS OF ROW SPACING, NITROGEN AND PHOSPHORUS ON HAY AND CRUDE PROTEIN YIELDS, AND PERCENTAGE OF CRUDE PROTEIN IN CRSTEDWHEATGRASS (Agropyron cristatum (L.) Geartn) GROWN UNDER DRY CONDITIONS OF ERZURUM. SUMMARY This ıria! was established on ıhe dry experimental areas of Agricultural Faculty of Alatürk University. Under dry condition, ıhree row spacings of 40,80 and 120 cm and nine combinations of ıhree nitrogen (O, 5 and LO kg N/da) with ıhree phosphorus (O, 25 and 5 kg P205/da) concantraliom were used. The effecıs ofıhe trealmenls on ıhe hay, proıein comeni of hay, and proıein yield were sl!4died ıhroughouııhe 1978-1984. The results obtained in ıhis study can be sumnıarized as below. 1. The highesı hay yield (354.1 kg/da) was obıainedwith, 40 cm rowspacing. The highest crude proıein yield was obıained wiıh 80, and 40 cm (416 ve 39.8 kg/da) spacings. The highest protein contem of herbage was obtained aı 120, and 80 cm (12.86 and 12.77 %) spacings. 2. The highest hay (406.1 kg/da), and crude protein yle/dr (58.! kg/da), and protein contenl (14.47 %) were detenmned at 10 kg N/do trea 3. No ejfect ofphosplwrus on hay and crude protein yields and protein content of hay occured.

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