KOREAN JOURNAL OF CROP SCIENCE (한국작물학회지)
- Volume 41 Issue 5
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- Pages.514-520
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- 1996
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- 0252-9777(pISSN)
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- 2287-8432(eISSN)
Effects of Nitrogen Fertilization Rate at Different Nursery Soils on Seedling Characters and Endosperm Consumption in Rice Seedling
상토 종류별 질소시비량이 벼 어린모 묘소질 및 배아양분 소모에 미치는 영향
- Kim, Sang-Su (National Honam Agricultural Experiment Stateion, RDA) ;
- Choi, Min-Gue (National Honam Agricultural Experiment Stateion, RDA) ;
- Lee, Seong-Yong (National Honam Agricultural Experiment Stateion, RDA) ;
- Yoo, Chul-Hyun (National Honam Agricultural Experiment Stateion, RDA) ;
- Cho, Soo-Yeon (National Honam Agricultural Experiment Stateion, RDA) ;
- Jun, Byung-Tae (Research Bureau, RDA)
- Published : 1996.10.01
Abstract
To clarify the proper nitrogen application level for rasing rice infant seedling under different nursery soil, Dongjinbyeo was raised at seedling box with different basal nitrogen level. The results are as follows. The higher the nitrogen level was, the lower emergence rate and the lower establishment rate. The establishment rate was less than 90%, when the nitrogen was more than 2g/box in hill soil and more than 1g/box in paddy soil. The more the nitrogen level was, the higher the seedling height in hill soil, but was higher in the order of N-2, 3, 1 and 0g /box. Leaf number wasn't significantly different between nusery soils and among nitrogen levels when seedling was raised more than 6 days. The endosperm survival rate was decreased as the increased nitrogen level, but wasn't different between the nursery soils. Amount of root was decreased as the increased nitrogen level in paddy soil, but was heavier in the order of N-1, 0, 2 and 3g /box in hill soil. Mat formation was better as the nitrogen level was decreased in all nursery soils. Considering the emergence rate, seedling charactors and mat formation, the proper nitrogen levels seemed to be 2g /box for hill soil and 1g /box for paddy soil.
벼 어린모 상자육묘시 상토종류별 질소시비량이 묘생육에 미치는 영향을 검토하여 상토종류별 적정 시비량을 구명하고자 동진벼를 공시하고 논 흙 및 산흙에 요소로 질소를 상자당 0, 1, 2, 3g 시용하고 평균