Effects of dates of seeding and harvest on the growth, forage yield and quality of spring sown oat at the middle mountain area

Kim, W.H.; Seo, S.; Jeong, K.H.; Choi, S.H.; Kim, M.J.; Lee, S.C.

Korean Journal of Animal Science 41(2): 215-220

1999


Accession: 010549173

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Abstract
This experiment was carried out to determine the effects of dates of seeding and harvest on the growth characteristics, forage yield and quality of spring sown oat(Avena sativa (L.) cv. Swan) at middle mountain area (450m) above sea level at the forage experimental field, Namweon Branch, National Livestock Research Institute. The experiment was arranged as a split plot design with three replications. The main plot consisted of the harvest date(9 June, 18 June). The subplots consisted of different seeding date of oat such as(9, 14, 19, 24, 29 March). A 5-day delay in seeding represends approximately 3apprx8 days being early heading. DM percentage of sown oat at 9 June and 18 June were 22.35% and 31.47%, respectively. The fresh yield harvested at 9 June and 18 June were 29,711kg and 31,699kg per ha. No significant fresh yield difference as found among the different seeding dates. The DM yield was 6,533kg and 9,929kg ha-1 in the plots harvested at 9 June and 18 June. No significant dry matter yield differences were found among the different seeding dates. Crude protein content was decreased from 12.4% to 9.2% as the growing stage progressed, ADF, NDF and CF(crude fiber) contents were decreased. And in vitro dry matter digestibility was decreased as the harvesting date delayed. The present results indicated that spring sown oat(Swan) can be successfully produced as forage by seeding in 10 March and harvesting in 10 June at the middle mountain area.