Effect of Sulfur Fertilization Method on Quality of Safflower Seed

황 시용방법에 따른 잇꽃 종실의 품질

  • Published : 2004.12.31

Abstract

This study was carried out to clarify the effect of sulfur fertilization method on the qualities of safflower (Carthamus tinctorious L.) seed. Sulfur application increased the nitrogen and sulfur content of seed. In nitrogen content, there was no significant difference among sulfur fertilizers, whereas sulfur content was increased by raising ammonium sulfate (AS) amounts by soil application. In application method of AS, there was no significantly difference between foliar application and soil application with 8 kg S/10a. N/S ratio in seed was decreased by sulfur application, and also decreased with the increase of AS amounts by soil application. The contents of lipid and protein were increased by sulfur application. Lipid content was highest in foliar application, and protein content was lowest in AS 4 kg S/10a. By sulfur application, the content of total phenolics and electron donating ability (EDA) were increased by $3.1{\sim}4.7%$ and $3.6{\sim}8.5%$, respectively compared with control. In content of total phenolics, there was no significant difference among sulfur fertilizers, but EDA was higher in sulfur powder 20 kg/10a and AS 8 kg S/10a than that in other fertilizers. Sulfur application showed positive effects on the qualities of safflower seed. In application effects, AS and foliar application were more efficient than sulfur powder and soil application, respectively.

잇꽃 종실의 품질 향상에 효과적인 황 시용방법을 구명하고자 황분말 20 kg/10a와 유안의 시용방법 및 시용량을 달리하여 종실의 영양적 품질에 미치는 영향을 비교 조사한 결과는 다음과 같다. 1. 종실의 질소와 황 함량은 황 무시용구에 비해 시용구에서 높은 경향이었다. 황 처리간에는 질소 함량은 차이가 없었으나, 황 함량은 유안 토양시비량이 증가할수록 높아졌다. 유안 시비방법 간에는 토양시비 33 kg/10a와 엽면시비 간에 큰 차이는 없었다. 질소/황 비율은 황 시용으로 질소/황 비율이 저하되었고, 유안 토양시비 간에는 시용량이 증가할수록 감소하여 유안 49.5 kg/10a 처리시 가장 낮았다. 2. 종실의 조지방과 조단백질 함량은 황 시용시 무시용에 비하여 높았으며, 황 유형 간에는 조지방이 유안 엽면시비에서 가장 높았고, 조단백질이 유안 16.5 kg/10a에서 가장 낮았던 것을 제외하고 차이가 없었다. 3. 총페놀성 화합물 함량과 항산화 활성은 황 시용으로 증가하였다. 황 처리 간에는 총페놀성 화합물 함량은 차이가 없었으나, 항산화 활성은 황분말과 유안 33.0 kg/10a 처리에서 다소 높았다.

Keywords

References

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