간행물
한국초지조사료학회지 KCI 등재 Journal of The Korean Society of Grassland Science
- 발행기관 한국초지조사료학회
- 자료유형 학술지
- 간기 계간
- ISSN 2287-5824 (Print)2287-5832 (Online)
- 수록기간 1978 ~ 2025
- 주제분류 농수해양 > 축산학 농수해양 분류의 다른 간행물
- 십진분류KDC 527DDC 636
권호리스트/논문검색
Vol.45 No.4 (2025년 12월) 7건
1.
2025.12
구독 인증기관 무료, 개인회원 유료
Integrated crop–livestock farming systems improve the self-sufficient feed ratio, and provide environmental benefits for agro-ecosystems. This study was conducted to evaluate the crop-livestock recycling indicators of Korean Hanwoo farms. 55 Korean beef farms were classified into five types. Organic Hanwoo farms were insufficient the area of forage crop cultivation required for Hanwoo certification in Korea, with forage crop sufficiency index of 49.6%. The forage self sufficiency index of grazing eco-farms was 108.5%, and self-certified (PGS) and conventional livestock farms was only 24.5 and 25.6%, respectively. The forage self sufficiency index was 60.4, 52.9, and 111.9% for Hanwoo + grassland crop, Hanwoo + forage crop + rice, and Hanwoo + grassland combined farms, respectively. Livestock density was 10.3 LSU (livestock units)/ha for organic Korean cattle farms, which was lower than 25.6 LSU/ha for conventional farms. In addition, the livestock density of grassland eco-farms was the lowest at 3.4 LSU/ha. Livestock density was 12.2 LSU/ha in the southern region, which was lower than in the central-northern region. In conclusion, forage crop sufficiency and livestock density are considered valid indicators for assessing the level of crop-livestock integrated agriculture.
4,000원
2.
2025.12
구독 인증기관 무료, 개인회원 유료
This study estimated whole crop maize (WCM; Zea mays L.) yield damage under abnormal climate conditions using a machine-learning approach based on Representative Concentration Pathway (RCP) 8.5 and visualized the results as spatial maps. A total of 3,232 WCM observations were compiled, and climate data were obtained from the Korea Meteorological Administration (KMA) Open Data Portal. The machine learning model used DeepCrossing. Dry matter yield (DMY) was predicted using the DeepCrossing model and climate data from the Automated Synoptic Observing System (ASOS; 95 stations). The calculation of damage was the difference between the DMYnormal and DMYabnormal. The normal climate was set as the 40-year of climate data according to the year of WCM data (1978-2017). The level of abnormal climate by temperature and precipitation was set as RCP 8.5 standard. The predicted DMYnormal ranged from 13,845-19,347 kg/ha. The damage from WCM varied by region and the severity of abnormal climate, including abnormal temperature and precipitation. Under abnormal temperature conditions, damage in 2050 and 2100 ranged from –243 to –133 and –1,797 to –245 kg/ha, respectively. Under abnormal precipitation conditions, damage in 2050 and 2100 ranged from –2,998 to 1,447 and –11,308 to 29 kg/ha, respectively. Overall, DMY of WCM tended to increase with higher mean monthly temperature. The damage calculated through the RCP 8.5 standard was presented as a spatial distribution using QGIS. Although this study used an RCP scenario based on greenhouse gas concentrations, further research is needed to apply an integrated Shared Socioeconomic Pathway (SSP) that accounts for socioeconomic factors.
4,000원
3.
2025.12
구독 인증기관 무료, 개인회원 유료
This study evaluated the effects of dietary cellulose-to-starch ratios on nutrient digestibility, fermentation characteristics, and greenhouse gas emissions in the rumen. For 48 h of in vitro rumen incubation, each substrate (0.3 g) was incubated with rumen fluid mixture (30 mL) in quadruplicate. Six treatments were formulated with different ratios of structural (cellulose-based) and non-structural (starch-based) carbohydrates (10:0, 8:2, 6:4, 4:6, 2:8, and 0:10). After incubation, total gas emission was measured and analyzed for CO2 and CH4. The remaining contents were centrifuged to determine rumen fermentation characteristics and digestibility. The crude protein level of all treatments was maintained at 15% by combining soybean meal and urea. After incubation, in vitro dry matter digestibility (IVDMD) and organic matter digestibility (IVOMD) increased linearly with higher starch content, while ammonia-N and total volatile fatty acid (VFA) concentrations decreased quadratically. In addition, acetate concentration and the acetate to propionate (A:P) ratio increased along with starch content (p<0.05), whereas propionate concentration decreased (p<0.05). As starch content increased, CO2 and CH4 emissions based on DM increased linearly (p<0.05) but decreased (p<0.05) quadratically and linearly based on DMD and OMD, respectively. Therefore, this study concluded that the dietary cellulose-to-starch ratios affected rumen fermentation characteristics and greenhouse gas emissions, particularly methane mitigation by increasing dietary starch content. Further study should be conducted to determine the concentrate-to-forage ratio that reduces greenhouse gas emissions without adverse effects on animal performance.
4,000원
4.
2025.12
구독 인증기관 무료, 개인회원 유료
To study the effects of external ethanol pretreatment on growth and drought tolerance in alfalfa, 21-day-old plants were pretreated with ethanol at 0-1000 mM for 4 days and then subjected to drought stress for 9 days. Ethanol pretreatment significantly enhanced plant survival under drought conditions, with the highest survival rate observed in the 250 mM treatment. In contrast, fresh weight and dry weight were not significantly affected by ethanol pretreatment. Relative water content was increased 7.15% at 250 mM ethanol treatment compared to 0 mM ethanol treatment. Chlorophyll content decreased compared to the control, while carotenoid content remained unchanged. total soluble carbohydrate content was reduced by ethanol pretreatment. Hydrogen peroxide (H2O2) levels were maintained only in plants treated with 250 mM ethanol, whereas lower and higher concentrations resulted in significantly decreased H2O2 content. These results suggest that ethanol pretreatment does not affect alfalfa growth, but significantly improves survival rate under drought conditions by maintenance of relative water content. Furthermore, it suggests that chemical priming using ethanol pretreatment could be applied as a method to improve drought tolerance of alfalfa plants.
4,000원
5.
2025.12
구독 인증기관 무료, 개인회원 유료
This study investigated cultivar variation in biomass partitioning patterns and nutrient harvest index across eight Brassica napus cultivars (Akela, Capitol, Colosse, Naehan, Pollen, Saturnin, Sparta, and Tamra). Seed dry weight varied ranging from 5.8 ± 0.3 g DW to 35.7 ± 6.7 g DW, with Colosse showing the highest seed production and Tamra showing the lowest. Harvest index (HI) was divided two groups showing high group (Capitol, Colosse, Pollen, Tamra) and low group (Akela, Naehan, Saturnin, Sparta), which were ranged from 10.8% to 31.7%. Sulfur harvest index (SHI) ranged from 25.6% to 46.5%, with Capitol and Pollen exhibiting the highest efficiency and with Akela and Naehan exhibiting the lowest efficiency. Nitrogen harvest index (NHI) showed greater variation, ranging from 39.8% to 74.3%, with Capitol and Pollen recording the highest value but Akela and Naehan recording the lowest values. Together, these results demonstrate that seed yield, HI, and nutrient harvest index can be partially decoupled among cultivars, highlighting SHI and NHI as complementary traits for selecting nutrient-efficient rapeseed germplasm. Consequently, Colosse and Pollen emerge as promising cultivars for seed oil production, whereas Akela, Sparta, and Naehan are better suited for feed use.
4,000원
6.
2025.12
구독 인증기관 무료, 개인회원 유료
This study was conducted to evaluate the effects of intercropping hairy vetch (HV) with Italian ryegrass (IRG), oat, and rye on forage productivity and nutritive value under a rice-forage double-cropping system. A field experiment was carried out in a paddy field using six treatments (IRG, IRG+HV, oat, oat+HV, rye, and rye+HV) arranged in a randomized complete block design with three biological replications. The results showed that dry matter (DM) yield and total digestible nutrients (TDN) yield were significantly higher in rye monoculture than in the rye+HV mixture, whereas no significant differences were observed between monoculture and intercropping in IRG or oat. In contrast, crude protein (CP) yield increased significantly under intercropping in IRG and oat, confirming the nitrogen contribution and protein-enhancing effects of the legume component. For forage quality, intercropping consistently reduced neutral detergent fiber (NDF) and acid detergent fiber (ADF) concentrations and improved DM intake (DMI), digestible DM (DDM), TDN, and relative feed value (RFV) in all three species. These findings indicate that the productivity-enhancing effect of intercropping is limited under paddy field conditions, while the improvement of forage quality is substantial and consistent. Therefore, intercropping with hairy vetch can serve as an effective strategy in systems where the primary objective is to enhance CP content and overall forage quality.
4,000원
7.
2025.12
구독 인증기관 무료, 개인회원 유료
Septi Anita Sari, Ade Citra Aulia, Youngju Kim, Daeyoung Son, Min Gab Kim, Woe-Yeon Kim, Joon-Yung Cha
Humic acid (HA), a key component of soil organic matter, has emerged as a multifunctional biostimulant that enhances soil quality, nutrient availability, plant growth, and stress resilience. The complex supramolecular structure of HA influences soil physicochemical properties by improving aggregation, increasing cation exchange capacity, and enhancing water and nutrient retention. These changes facilitate greater uptake of essential macro- and micronutrients, supporting improved photosynthesis, root development, and biomass accumulation. At the physiological and molecular levels, HA modulates hormone signaling, activates antioxidant defenses, and primes stress-responsive pathways that enhance tolerance to drought, salinity, and other abiotic stresses. HA’s ability to regulate reactive oxygen species (ROS) homeostasis, maintain ion balance, promote osmolyte accumulation, and activate pathways such as Salt-Overly-Sensitive (SOS) or other stress-regulatory networks has been demonstrated across diverse crop species. Despite these benefits, variability arising from differences in HA source materials and extraction methods remains a major challenge for consistent application. Future research integrating multi-omics approaches, improved formulation strategies, and large-scale field validation will be essential for elucidating unknown HA’s regulatory mechanisms and maximizing its agricultural potential. Collectively, current evidence positions HA as a promising biostimulant capable of enhancing crop productivity and resilience within sustainable agricultural systems.
4,000원
