Comparative Studies on the DM Yield and Quality Before and After Pasture Renovation of Summer Depression Damaged Pasture
2000
Lee Hyung-Suk | Kim Seon-Kyun Woosong Information College, Taejon (Korea Republic)
This study was conducted to evaluate the dry matter yield and qulaity of the before and after renovation of summer depression damaged pasture, and carried out at Chungnam National University from 1997 to 1999. The yield of DM in first and second year of after renovation, comparing with those of before renovation(6,547kg/ha), significantly increase obtained 12,291kg/ha and 13,501kg/ha, respectively(p0.05). In the chemical composition,CP content and DM digestibility were markedly increased comparing with those of before renovation(p0.05), but the contents of NDF, ADF, cellulose and lignin were decreased respectively(p0.05). In the botanical composition, weeds after renovation was markedly decreased comparing with before renovation, but increased the percentage of herbage in summer depression damaged pasture. The results from this study. It is proved that a renovation method, which was conducted by two times of reseeding and raking, was effective in recovering botanical composition of herbage, and enhancing productivity and upgrading quality in summer depression damaged pasture.
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