Effect of Drainage Culvert Spacing on Forage Crops Production in Poorly Drained Paddy Field Converted to Upland Crop Cultivation
2008
Shin, J.S. (National Institute of Animal Science, RDA, Cheonan, Republic of Korea), E-mail: sjs911@rda.go.kr | Jeon, J.G. (National Academy of Agricultural Science, RDA, Suwon, Republic of Korea) | Lee, S.B. (National Academy of Agricultural Science, RDA, Suwon, Republic of Korea) | Kim, W.H. (National Institute of Animal Science, RDA, Cheonan, Republic of Korea) | Yoon, S.H. (National Institute of Animal Science, RDA, Cheonan, Republic of Korea) | Lee, J.K. (National Institute of Animal Science, RDA, Cheonan, Republic of Korea) | Kim, J.G. (National Institute of Animal Science, RDA, Cheonan, Republic of Korea) | Jung, M.W. (National Institute of Animal Science, RDA, Cheonan, Republic of Korea) | Seo, S. (National Institute of Animal Science, RDA, Cheonan, Republic of Korea) | Lim, Y.C. (National Institute of Animal Science, RDA, Cheonan, Republic of Korea)
This experiment was conducted to compare the agronomic characteristics, productivity of silage com and barley cropping, forage sorghum and barley cropping in accordance with Drainage Culvert Spacing at poorly drained paddy field in National Institute of Animal Science, at Seonghwan in Korea, March 2006 to May 2007. The emergency and flowering date were no different among treatments. Emergency rate and flowering date were 90% and July 26 in silage com, 91% and July 21 in forage sorghum, 92% and April 27 in barley, respectively. Dry matter yield was high in line with 3 m drainage culvert spacing (24,389 kg/ha) greater than 5 m (23,543 kg/ha) greater than 7 m (21,527 kg/ha) greater than 0 m (14,132 kg/ha). In cropping systems, dry matter yield of forage sorghum and barley (22,111 kg/ha) was higher than silage com and barley (19,684 kg/ha). Crude protein and TDN yield were high in line with 3 m (2,365 and 15,394 kg/ha) greater than 5 m (2,255 and 14,513 kg/ha) greater than 7 m (1,884 and 13,747 kg/ha) greater than 0 m (995 and 8,682 kg/ha). In cropping systems, crude protein and TDN (total digestible nutrients) yield of forage sorghum and barley cropping system (2,165 and 13,582 kg/ha) was higher than silage com and barley cropping system (1,576 kg/ha and 12,482 kg/ha), respectively. Consequently proper drainage culvert Spacing at poorly drained paddy field was 5m with forage sorghum and barley cropping system.
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