신개간 산지토양에서 중과석 및 용성인비의 시용이 혼파목초의 초기생육, 식생비율 및 수량에 미치는 영향 비교

Abstract

This pot experiment was conducted in order to observe the effects of double superphosphate and fused phosphate application(T: control. T: double superphosphate application, T; fused phosphate application) on the seedling vigour, botanical composition, and yields of grass/clover mixed swards on newly reclaimed hilly soil. The results obtained are summarized as fellows: At the grassland establishment. the seedling vigour and yields of grass-clover mixed swards were much better by the Tthan the T. These favorable effects were more enhanced in white clover than orchardgrass. Compared with the T, the Tresulted in the gradual increase of botanical composition and relative yield of white clover according to the cutting order. With the consideration of these results, double superphosphate could be favorable for pasture establishment and fused phosphate could be favorable for pasture management fertilizers.