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http://dx.doi.org/10.5333/KGFS.2010.30.3.237

Comparison of Growth Characteristics and Yield of Silage Corn Hybrids by Different Planting Dates at Paddy and Upland Field  

Son, Beom-Young (National Institute of Crop Science, RDA)
Kim, Jung-Tae (National Institute of Crop Science, RDA)
Lee, Jin-Seok (National Institute of Crop Science, RDA)
Baek, Seong-Bum (National Institute of Crop Science, RDA)
Kim, Wook-Han (National Institute of Crop Science, RDA)
Kim, Jong-Duk (Division of Animal Husbandry, Cheonan Yonam College)
Publication Information
Journal of The Korean Society of Grassland and Forage Science / v.30, no.3, 2010 , pp. 237-246 More about this Journal
Abstract
This study was conducted to evaluate growth characteristics and yield of silage corn hybrids by different planting dates at paddy and upland field. Days to silking by different planting dates at paddy field were 81 days at planting on April 22, 70 days on May 20 and 62 days on June 10, respectively, and they were getting shorter as planting date delayed. There was no significant difference in days to silking between paddy and upland field. Plant height in paddy field was no significant difference between at planting on April 22 and on May 20, and it was shortened sharply at planting on June 10. There was no significant difference in plant height between paddy and upland field. There was no significant difference in lodging by different planting dates in paddy field. There was significant difference in lodging between paddy and upland field (P<0.05). There was no significant difference in stay-green by different planting dates in paddy field, and no significant difference between paddy and upland field. Ear ratios to total dry matter in paddy field were 43% at planting on April 22, 41% on May 20 and 28% on June 10, respectively, and it was lower as planting date delayed. There was no significant difference in ear ratios to total dry matter between paddy and upland field. Fresh yields in paddy field were lower with 14% at planting on May 20 and 32% on June 10 compared to on April 22 as planting date delayed. There was no significant difference in fresh yield between paddy and upland field. Dry matter yields in paddy field were higher with 9% at planting on May 20 and lower with 24% on June 10 compared to at planting on April 22 as planting date delayed. Dry matter yield in paddy field was lower with 9% compared to 1,931 kg/10a at planting on April 22. TDN (Total digestible nutrients) yields in paddy field were higher with 5% at planting on May 20 and lower with 28% on June 10 compared to at planting on April 22 as planting date delayed. TDN yield in paddy field was lower with 11% compared to 1,340kg/10a at planting on April 22.
Keywords
Paddy field; Silage corn; Planting date; Yield; Dry matter; TDN;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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