Effect of cultivar and fertilizer application on yield and quality of barley straw
1998
Seyoum Bediye(Ethiopian Agricultural Research Organization, Addis Abeba (Ethiopia)) | Zinash Sileshi(Ethiopian Agricultural Research Organization, Addis Abeba (Ethiopia)) | Getinet Asefa(Ethiopian Agricultural Research Organization, Addis Abeba (Ethiopia)) | Hailu Gebre(Ethiopian Agricultural Research Organization, Addis Abeba (Ethiopia))
A total of 13 cultivars of barley land races and improved varieties consisting of 6 late maturing types at three sites and 7 early maturing ones at one site were established with and without fertilizer application to study the effect of cultivar and fertilizer application on yield and quality of barley straw. Site specific comparisons were made to detect the influences of the factors under study on yield, CP content and in vitro digestibility (IVOMD) of the straw and the association between grain yield and straw quality was quantified using correlation analysis. Cultivars were ranked from best to worst based on potential utility index (PUI). The cultivars varied significantly (p0.01)in CP content and IVOMD at all sites. Differences noted among cultivars varied from 6-9% in IVOMD, 0.0-0.16 t/ha in straw yield and 3-27% in PUI. Fertilization had a major influence on straw yield than straw quality and PUI. Ranking of cultivars using PUI was affected more by site than fertilizer application. Grain yield and straw quality (CP, IVOMD) were poorly (r
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