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논문 기본 정보

자료유형
학술저널
저자정보
Hyun-Hwoi Ku (Hankyong National University) Seung-Hwan Kim (J&B Engineering)
저널정보
한국토양비료학회 한국토양비료학회지 한국토양비료학회지 제49권 제3호
발행연도
2016.6
수록면
282 - 286 (5page)

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초록· 키워드

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This study was carried out to evaluate the effect of application of urea and combination of urea and pig manure compost (PMC) on the occurrence of and the recovery from ammonium (NH₄<SUP>+</SUP>) toxicity in Chinese cabbage. To identify NH₄<SUP>+</SUP> toxicity of the crop four levels of urea at 0, 160, 320, and 480 kg N ha<SUP>-1</SUP> were applied, in addition, three levels of PMC at 10, 20, and 40 M/T ha<SUP>-1</SUP> was also applied with urea 320 kg ha<SUP>-1</SUP>. For recovery NH₄<SUP>+</SUP> toxicity, six levels of sucrose were treated at the amount of 0, 600, 1,200, 1,800, 2,400, and 3,000 kg Cha<SUP>-1</SUP> at each level of combining treatments of urea and PMC. Our results showed that NH₄<SUP>+</SUP> toxicity was occurred at every urea application of 320 kg N ha<SUP>-1</SUP> regardless of PMC applied to the soils because NH₄<SUP>+</SUP> contents in the soils were more than 155 mg kg<SUP>-1</SUP> which was found to be the critical level to damage crop growth at 2 days after transplanting (DAT) in this experiment, the more sucrose was applied up to 1,800 kg Cha<SUP>-1</SUP> for the plants damaged by ammonium toxicity occurred at 320 kg N ha<SUP>-1</SUP>, the greater extents recover the plants from the toxicity. PMC showed the similar effect with sucrose on recovering Chinese cabbage plants from NH₄<SUP>+</SUP> toxicity at 30 DAT.

목차

Introduction
Materials and Methods
Results and Discussion
Conclusion
References

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UCI(KEPA) : I410-ECN-0101-2017-523-000850501