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http://dx.doi.org/10.5333/KGFS.2005.25.4.245

Effects of Ammonium Sulfate and Potassium Sulfate Fertilizer on Dry Matter Yield and Forge Quality of Sorghum X Sudangrsss Hybrid in Reclaimed Tidal Land  

Shin Jae Soon (Grassland and Forage crops Division, National Livestock Research Institute, RDA)
Lee Seung Heon (Korea Agricultural & Rural Infrastructure Corporation)
Kim Won Ho (Grassland and Forage crops Division, National Livestock Research Institute, RDA)
Kim Jong Geun (Grassland and Forage crops Division, National Livestock Research Institute, RDA)
Yoon Sei Hyung (Grassland and Forage crops Division, National Livestock Research Institute, RDA)
Lim Keun Bal (Grassland and Forage crops Division, National Livestock Research Institute, RDA)
Publication Information
Journal of The Korean Society of Grassland and Forage Science / v.25, no.4, 2005 , pp. 245-250 More about this Journal
Abstract
This experiment was conducted to compare the frech and dry matter yields and feed values of Sorghum$\times$Sudangrsss Hybrid in accordance with different nitrogen and potassium fertilizer sources at the Dae-Ho reclaimed tidal land, Korea from 2003 to 2004. Soil salt contents of ammonium sulfate plots(T3, T4, T5) were higher than that of the urea plot(T2), but that of potassium sulfate plot(T6) was the lowest. The fresh yields of ammonium sulfate plots(T3, T4, T5) and potassium sulfate plot(T6) were higher than that of the urea plot(T2) as $173\%,\;173\%,\;144\%\;and\;90\%$. respectively. The dry matter and total digestible nutrient(TBN) yields were similar tendency like the results of the fresh matter yields. The crude protein(CP), neutral detergent fiber(NDF) and acid detergent fiber(ADF) contents of ammonium sulfate plots(T3, T4, T5) were higher than those of urea plot(T2), but those of potassium sulfate plot(T6) were the lowest. On the other hand, TDN content in potassium sulfate plot(T6) was the highest. It was desirable to use ammonium sulfate$(20\~30kg\;N/10a)$ and potassium sulfate fertilizer$(15kg\;K_2O/10a)$ than those of urea and potassium chloride fertilizer on reclaimed tidal land in view of forage production and its feed value.
Keywords
Reclaimed tidal land; Hybrid; Ammonium sulfate; Potassium sulfate fertilizer; Forge quality;
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