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18.97.9.172
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SCIE
중질소를 (重窒素) 이용한 수도품종 (水稻品種) 및 시용시기에 (施用時期) 따른 토양 및 시비질소의 (施肥窒素) 효율 - 제2보 . 포장에서의 양분흡수와 효율 -
Efficiency of Soil and Fertilizer Nitrogen in Relation to Rice Variety and Application Time , Using N - 15 Labelled Fertilizer - Ⅱ. Nutrient uptake and efficiency in fields -
박훈(Hoon Park), 김웅주(Woong Ju Kim), 박영선(Young Sun Park)
UCI I410-ECN-0102-2008-520-000747230

In the countrywide NPK simple trials nitrogen content is higher in grain but lower in straw of Tongil than of the local. Potassium content was reverse of nitrogen, Phosphorus content was higher in both parts of Tongil. Phosphorus uptake amount of Tongil was twice of the local. Tongil showed profered uptake of divalent canons (Ca & Mg) than monovalent comparing with the local. Silica uptake ap feared to be lower in Tongil than in the local. Production efficiency(yield/total nitrogen taken up) translocation efficiency(grain N/total N amount) fertilizer use efficiency, absorbed fertilizer efficiency and fertilization efficiency of nitrogen are higher in Tongil than in the local. Translocation efficiency of Phosphorus was higher in Tongil but that of potassium was tower. SCU greatly decreased silica uptake in the local and increased nitrogen fertilizer use efficiency especially in the local.

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