KOREAN JOURNAL OF CROP SCIENCE (한국작물학회지)
- Volume 12
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- Pages.25-29
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- 1972
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- 0252-9777(pISSN)
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- 2287-8432(eISSN)
Studies on the effect of Silicate on nutrients up take using radioisotopes in rice plant. (II)
RI를 이용한 규소시용이 수도의 영양요소 흡수에 미치는 영향
Abstract
This experiment was carried out to investigate the role of Silicon accumlated in rice plant under different conditions of light and humidity, using radioisotopes Ca-45, Mn-54, and P-32. This results obtained in are as follows; 1. Light effect is more severe in phosphate uptake by rice plant than is calcium. Amounts of phosphate uptake in light condition is six times more than in dark conditions, while that of calcium is double. 2. Change of relative humidity affects calcium absorption and transport from root to shoot. It seems not to be influenced in phosphate and manganese uptake by relative humidity. 3. More uptake of each element Ca-45, P-32, or Mn-54 was found in the rice plant applied with silicic acid. It is considered that there must be some relationship between silicon content and ion uptake in rice plant. 4. The transport ratio of nutrient from root to shoot shows a specific pattern that calcium is approximately 1.0 manganese 0.5 and phosphate 0.2 respectively.
1. 광조건에 의한 흡수량 차이는
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