Effects of lime and phosphate on dry matter and mineral content in mixed sward in Cheju volcanic ash soil
1989
Ko, S.B. | Baik, Y.K. | Yang, C.B. (Rural Development Administration, Cheju (Korea R.). Cheju Experiment Station) | Choung, C.C. (Cheju National Univ., Cheju (Korea R.). Coll. of Agriculture)
To determine the effects of lime and phosphate on dry matter yield and mineral content in mixed sward in Cheju volcanic ash soil from October 1983 to the end of growing season in 1986. The pH in soil was not affected by lime and phosphate applied, but exchangeable Ca, Mg and available P were increased by liming and phosphate levels. Average mean dry matter yield of lime plot increased 5% more than that non-lime plot, and dry matter yield according to the phosphate (0, 20, 40, 60 kg/10a) applications increased significantly 488.3 kg, 1,024 kg, 1,137.0 kg and 1,202.2 kg, respectively. Botanical composition in non-phosphate plot was dominated by red top but ladino clover was almost disappeared. However, phosphate applied plot were dominated by Orchard grass and ladino clover 50-60% and 15-20%, respectively. Mineral (P, K. Ca, Mg) content in herbage were not different between lime and non-lime plot. But P, Ca and Mg were increased according to the phosphate levels
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