지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
이용수
초록· 키워드
오류제보하기
The early maturing rice is a species that can be cultivated at various times, such as early, normal season, and late cultivation, depending on the purpose. There are many studies on the characteristics of rice according to the transplanting time for these early maturing rice, but studies on the runoff of nutrients are insignificant. The surface runoff of NH₄⁺-N was the highest among the treatment at 1.337 g m<SUP>-2</SUP> (2020 year) in the Clay Loam (CL) & late cultivation, and the smallest treatment was the Sandy Loam (SL) & normal season cultivation (0.005 g m<SUP>-2</SUP>, 2019 year). The highest NO3⁻-N surface runoff was 0.137 g m<SUP>-2</SUP> (2020 year) in the CL & late cultivation. In the case of phosphate, there were more nutrients runoff from late cultivation with large outflows than normal season cultivation. The underground runoff of NH₄⁺-N was the highest among the treatment at 0.147 g m<SUP>-2</SUP> (2020 year) in the SL & late cultivation, and the smallest treatment was the CL & normal season cultivation (0.007 g m<SUP>-2</SUP>, 2019 year). The highest NO₃⁻-N underground runoff was 2.113 g m<SUP>-2</SUP> (2019 year) in the SL & normal season cultivation. In order to compare rice growth, the dry weight of leaves, shoots, and ears after rice harvest was compared. ear was a little larger in the normal season cultivation than in the late cultivation in 2019 (p ＜ 0.05), but there was no difference in ear according to soil texture and the transplanting time in 2020. There may be differences in nutrient outflow and rice growth depending on the soil texture and transplanting time when cultivating early maturing rice, and the results of this study can be used as basic data on nutrient outflow in paddy when cultivating early maturing rice.
목차
ABSTRACT
Introduction
Materials and Methods
Results and Discussion
Conclusions
References
참고문헌 (16)
참고문헌 신청
Cho, J.Y., K.W. Han, and C.H. Choi. 1999. Runoff loading of nitrogen and phosphorus with rainfall intensity from a paddy filed. Korean J. Environ. Agric. 18(2):140-147.
Choe, D.H., S.G. Choe, S.O. Heo, and J.P. Jo. 2017. Nutrient runoff in paddy fields and nutrient runoff impact assessment according to climate change scenarios. Mag. Korean Soc. Agric. Eng. 59(3):34-42.
Fu, J., R. Gasche, N. Wang, H. Lu, K. Butterbach-Bahl, and R. Kiese. 2017. Impacts of climate and management on water balance and nitrogen leaching from montane grassland soils of S-Germany. Environ. Pollut. 229:119-131.
Jia, X., L. Shao, P. Liu, B. Zhao, L. Gu, S. Dong, S.H. Bing, J. Zhang, and B. Zhao. 2014. Effect of different nitrogen and irrigation treatments on yield and nitrate leaching of summer maize (Zea mays L.) under lysimeter conditions. Agric. Water Manage. 137:92-103.
Kong, M.S., T.G. Lee, S.S. Kang, E.J. Lee, G.B. Jung, Y.H. Kim, and H. Jung. 2019. Nutrient characteristics and redox potential changes as affected by water management in rice paddy weighing lysimeter. Korean J. Soil Sci. Fert. 52(4):567-578.
Choe, D.H., S.G. Choe, S.O. Heo, and J.P. Jo. 2017. Nutrient runoff in paddy fields and nutrient runoff impact assessment according to climate change scenarios. Mag. Korean Soc. Agric. Eng. 59(3):34-42.
Fu, J., R. Gasche, N. Wang, H. Lu, K. Butterbach-Bahl, and R. Kiese. 2017. Impacts of climate and management on water balance and nitrogen leaching from montane grassland soils of S-Germany. Environ. Pollut. 229:119-131.
Jia, X., L. Shao, P. Liu, B. Zhao, L. Gu, S. Dong, S.H. Bing, J. Zhang, and B. Zhao. 2014. Effect of different nitrogen and irrigation treatments on yield and nitrate leaching of summer maize (Zea mays L.) under lysimeter conditions. Agric. Water Manage. 137:92-103.
Kong, M.S., T.G. Lee, S.S. Kang, E.J. Lee, G.B. Jung, Y.H. Kim, and H. Jung. 2019. Nutrient characteristics and redox potential changes as affected by water management in rice paddy weighing lysimeter. Korean J. Soil Sci. Fert. 52(4):567-578.
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