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제주 화산회토 초지에 석회 및 인산 시용이 수량 및 무기성분함량에 미치는 영향
고서봉,백윤기,양창범,정창조 제주대학교 농과대학 제주도축산문제연구소 1991 畜産論叢 Vol.6 No.1
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, hut exchangeable Ca, Mg and available P were increased h y liming and phosphate levels. Average mean dry matter yield of lime plot was more increased 5% than that non-lime plot, and dry matter yield according to the phosphate (0, 20, 40, 60 kg/10a) applications were significantly increased 488.3kg. 1,024kg, 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 disappearanced However, phosphate applied plot were dominated by Orchard grass and lading 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.