Cool-season grasses are currently widely used in South Korea, but their productivity and quality may decline due to global warming associated with climate change. Warm-season grasses have shown greater adaptability to heat stress and drought conditions, making them potential alternatives for summer pasture establishment in central and southern Korea. This study aimed to compare the growth characteristics, productivity, and forage value of warm-season grasses bermudagrass and crabgrass for pasture establishment in the central region of South Korea. The experiment was conducted from May 2023 to October 2024 at the National Institute of Animal Science, Cheonan, South Korea. Crabgrass exhibited superior initial establishment and faster growth rates, whereas bermudagrass had poor initial growth, placing it at a competitive disadvantage against weeds. However, after the first cutting, bermudagrass successfully established itself and maintained a stable botanical composition. The annual dry matter productivity of crabgrass (8,586 kg/ha in 2023 and 12,013 kg/ha in 2024) was 32.62% and 40.18% higher, respectively, than that of bermudagrass (5,785 kg/ha in 2023 and 8,570 kg/ha in 2024). In forage value, crabgrass tended to show higher feed value at the initial harvest, while bermudagrass showed higher quality at the later harvests. In conclusion, these results suggest that both crabgrass and bermudagrass have potential for pasture establishment, with carbgrass being more suitable for short-term due to its rapid growth and high productivity, and bermudagrass being more appropriate for long-term due to its stable productivity in regions where overwintering in possible.

바랭이(Digitaria sanguinalis L.) 우점 야초지의 건물수량, 사료가치 및 영양소 이용성 등을 구명하여 조사료원으로 활용 가능성을 탐색하고자 숙기별 건물수량, 화학적 성분을 조사하였고, 재래산양 12두를 공시하여 혼파목초와 바랭이 우점 야초를 급여하여 섭취량, 건물소화율 및 질소와 에너지 이용성 등을 평가한 결과는 다음과 같다. 바랭이 우점 야초지의 평균 건물수량은 8,473kg/ha이었으며, 평균 CP, NDF, ADF 및 lignin 함량은 각각 13.0%, 74.1%, 38.6% 및 10.4%이었다. 건물섭취량은 바랭이 우점 야초지가 혼파초지에 비하여 다소 낮은 편이었으나 두 처리간에 유의적인 차이는 없었다. 그러나 건물소화율, 세포내용물의 소화율, NDF 및 ADF 소화율은 바랭이 우점 야초지가 혼파초지에 비하여 낮은 결과를 보였다(P<0.05). 질소 및 에너지의 이용성은 바랭이우점 야초지가 혼파초지에 비하여 낮았다(P<0.05). 이상의 결과로 보아 바랭이 우점 야초지는 혼파초지에 비하여 건물섭취량과 소화율 및 질소와 에너지이용성 등이 다소 낮은 편이지만, 시비를 하지 않고 연간 8,473kg/ha의 건물수량을 얻을 수 있어 부존 조사료원의 하나로 이용 가능성은 크다고 하겠다.

An experiment was canied out to investigate how to effect the application of nitrogen, phosphate and potassium on the vegetation and dry matter yield in the mixed sward of Ladino clover and crabgrass(Digitaria sanguinalis [L.] Scop.). The experimental swa

This experiment was carried out to investigate how to effect the application of nitrogen, phosphate and potassium on the vegetation and dry matter yield in the mixed sward of orchardgrass and crabgrass (Digitaria sanguinalis [L.] Scop.). The experimental