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http://dx.doi.org/10.5333/KGFS.2022.42.4.249

Comparison of Growth Characteristics and Nutritive Value of Silage Corn Hybrids Grown at Paddy and Upland Field  

Young Sam Go (Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration)
Jun Young Ha (Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration)
Hwan Hee Bae (Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration)
Jae Han Son (Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration)
Kyeong Min Kang (Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration)
BeomYoung Son (Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration)
Tae Wook Jung (Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration)
Publication Information
Journal of The Korean Society of Grassland and Forage Science / v.42, no.4, 2022 , pp. 249-257 More about this Journal
Abstract
This study was conducted to comparison analysis growth characteristics, yield and forage quality of 18silage corn varieties grown in paddy and upland fields. In this condition, days to silking of Sinhwangok was the shortest with 78 days and Kangdaok the longest with 92 days. Moreover it was confirmed that the difference of days to silking at this condition greatly occurred in the late species than in the precocious species. The height and ear height ratio of corn grown in paddy decreased by 5~10% and increase by 10~15% compared to upland, respectively. It was confirmed that the ear ratio of corn which enhances the forage quality was highest in Sinhwangok at paddy and upland and most of the varieties decreased by 10~30% at paddy rather than upland. The length of ear was also reduced by 10~25%. In fresh yield, Dacheongok showed the highest yield at 65,750 kg/ha in upland and 38,830 kg/ha in paddy. Similar to the fresh yield, dry and TDN yield in Dacheongok also showed the highest yield at 36,910 kg/ha, 18,040 kg/ha in upland and 21,670 kg/ha, 14,390 kg/ha in paddy, respectively. As a result of analyzing crude protein and starch from seeds to evaluate the feed value of corn for silage, there was no difference between cultivars grown in this condition. In addition, as a result of analyzing the contents of ADF and NDF using leaves, stems and seeds, the contents of leaves and stems were lower in P3394 and P1543 at the upland and lower in Singwangok and Daanok when cultivated at paddy. Moreover ADF and NDF contents were decreased in some varieties in paddy rather than upland. Therefore, there is no significant difference in the feed value of corn varieties grown in this condition, it is possible to cultivate corn in paddy if normal growth is achieved through drainage management.
Keywords
Growth characteristics; Paddy and upland field; Quality; Silage corn;
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Times Cited By KSCI : 9  (Citation Analysis)
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