ERZURUM KIRAÇ ŞARTLARINDA YETİŞTİRİLEN MAVİ AYRIK (Agropyron intermedium (Host.) Beauv.)'A UYGULANAN DEĞİŞİK SIRA ARALIĞI VE GÜBRELERİN OT VE HAM PROTEİN VERİMİ İLE OTUN HAM PROTEİN ORANINA ETKİLERİ ÜZERİNDE BİR ARAŞTIRMA

Abstract

OZET Bu arastirmada, Erzurum kirac sartlarida yetistirilen mavi ayrik (Agropyron intermedium (Host.) Beauv.j'a uygulanan degisik sira araligi (40, 80 ve 120 cm) ile farkli azot (0, 5 ve 10 kg Nida) ve fosfor (0, 25 ve 5 kg P2Oj/da) dozlarinin kuru ot ve ham protein verimi ile otun ham protein oranina etkileri incelenmistir. 1978-1984 doneminde yurutulen bu arastirmadan elde edilen sonuclar, asagidaki sekilde Ozetlenmistir. 1- Sira araliklarinin etkisi onemli olmustur. En yuksek kuru ot verimi 40 cm (302.8 kg/da), en yuksek ham protein orani (% 13.34) ve ham protein verimi (375 kg/da) ise 80 cm sira araligi uygulanan islemlerden alinmistir. 2- En yuksek kuru ot verimi (358.3 kg/da), ham protein verimi (52.8 kg/da) ve ham protein orani (% 1450) 10 kg Nida uygulanmasindan elde edilmistir. 3- Fosforun kuru ot verimine etkisi Onemli, ham protein oran ve verimine etkisi ise onemsiz olmustur. En yuksek kuru ot verimi (2665 kg!da) 2.5 kg P205/da uygulanan islemlerden alinmistir. THE EFFECTS OF ROW SPACING, NITROGEN AND PHOSPHORUS ON HAY AND CRUDE PROTEIN YIELDS AND PERCENTAGE OF CRUDE PROTEIN IN INTERMEDIATE WHEATGRASS (Agropyron intermedium (Host.) Beauv.) GROWN UNDER DRY CONDITIONS OF ERZURUM SUMMARY T his trial was established on the dry experimental areas of Agricultural Faculty of Ataturk University, Under dry condition, three row spacings of 40,80 and 120 cm and nine combinations of three nitrogen(0,5 and 10 kg N/da) with three phosphorus (0,25 and 5 kg P2O5/da) concantrations were used. The effects of the treatments on the hay, protein content of hay, and protein yield were studied throughout the 1978-1984. The results obtained in this study can be summarized as below. 1- The ejfect of row spacing was significant on protein and hay yieids, and portein content. The highest hay yield (302.8 kg/da) was obtained with 40 cm row spacing. The highest crude protein yield (375 kglda), and protein content (% 13.34) was obtained at 80 cm spacing. 2- The highest hay (358.3 kglda), and crude protein yields (52.8 kglda), and protein content (1450%) were detertrdned at 10 kg Nida treatment. 3- The effect of phosphorus was significant on hay yield. The highest hay yield (2665 kglda) was obtained at 2 5 kg P20olda treatment. No effect of phosphorus on crude protein yields and protein content of hay occured.