Effect of Controlled-Release Coated Fertilizer on Yield and Nitrogen Use Efficiency in a Red Pepper Cultivated Field

Jong-Hyeong Lee; Byoung-Rourl Choi; Gwang-Grae Cho; Eun-Kyu Jang; Young-Rok Kim; Jung-Hyeun Ji; Hong-Sik Na; Sang-Eun Lee; Hyun-Hwoi Ku

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자료유형: 학술저널

저자정보: Jong-Hyeong Lee (Gyeonggi-Do Agricultural Research & Extension Services) Byoung-Rourl Choi (Gyeonggi-Do Agricultural Research & Extension Services) Gwang-Grae Cho (Gyeonggi-Do Agricultural Research & Extension Services) Eun-Kyu Jang (Gyeonggi-Do Agricultural Research & Extension Services) Young-Rok Kim (Gyeonggi-Do Agricultural Research & Extension Services) Jung-Hyeun Ji (Gyeonggi-Do Agricultural Research & Extension Services) Hong-Sik Na (Nousbo) Sang-Eun Lee (Hankyong National University) Hyun-Hwoi Ku (Hankyong National University)

저널정보: 한국토양비료학회 한국토양비료학회지 한국토양비료학회지 제53권 제4호

발행연도: 2020.11

수록면: 519 - 527 (9page)

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Improving the nitrogen use efficiency (NUE) of crops is a technology that improves crop productivity and prevent environmental pollution simultaneously. A way to improve NUE is to develop and use a controlled release fertilizer. We developed a controlled release fertilizer in terms of controlled-release coated fertilizer for rhizosphere application (CRFR) which is a mineral fertilizer applying just under the plant root zone. In order to test effect of the developed CRFR on crop yield and NUE, field experiments were conducted with six levels of N (N 0, N 190, CRFR-N 16, CRFR-N 22, CRFR-N 27, and CRFR-N 33 ㎏㏊<SUP>-1</SUP>) at the experimental station of Gyeonggi-do Agricultural Research & Extension Services (GARES) for two years (2017 to 2018). The fruit yield and NUE of red pepper were obtained using agronomic measurements. To determine optimum N rate of CRFR we applied linear-plateau model. Results showed that the yield was not significantly different between the two levels of CRFRs (N 22 and 27) and N 190 in 2017. Similarly, the yield was not different between the three levels of CRFRs (N 22 and 27) and N 190 in 2018 although almost six times as much N rate was applied in the N 190. Meanwhile, NUEs in the CRFRs were ranged from 69.8 to 88.5% which were much higher than the N 190 treatment (14.8%). Since CRFRs showed no different yields as compared to N 190, we analyzed the optimum rate of CRFR using the linear plateau model and CRFR applied at 23.1 ㎏ N ㏊<SUP>-1</SUP> was optimal for the yield. Our results suggest that CRFR was able to significantly increase crop productivity while reduce environmental pollution because of remarkably high NUE.

#Controlled-release coated fertilizer for rhizosphere #fruit yield #Nitrogen use efficiency #Linear-plateau model

참고문헌 (17)

참고문헌 신청

Anggoro, D.D. 2011. Producing slow release urea by coating with starch/acrylic acid in fluid bed spraying. International Journal of Engineering & Technology, 11:77-80.

Choi, B.Y., G.R. Cho, T.J. Won, S.J. Kim, and O.Y. Gwon. 2012. Effects of Controlled Release Fertilizer Application with Rice Cultivation on Nitrogen Use Efficiency and Yield in Paddy Field. Korean Journal of Organic Agriculture, 20(3):152-152.

Chung, D.Y. and K.S. Lee. 2008. Role of chemical fertilizer and change of agriculture in Korea. Korean Journal of Agricultural Science, 35:69-83.

Constable, M., M. Charlton, F. Jensen, K. McDonald, G. Craig, and K.W. Taylor. 2003. An ecological risk assessment of ammonia in the aquatic environment. Human and Ecological Risk Assessment, 9(2):527-548.

Grant, C. 2005. Policy aspects related to the use of enhanced-efficiency fertilizers: Viewpoint of the scientific community. In Proceedings, IFA International Workshop on Enhanced-Efficiency Fertilizers, Frankfurt, Germany, pp. 28-30.

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