Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)
- Volume 34 Issue 2
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- Pages.85-91
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- 2001
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- 0367-6315(pISSN)
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- 2288-2162(eISSN)
Relationship between Leaf Chlorophyll Reading Value and Soil N-supplying Capability for Tomato in Green House
시설재배 토마토 잎의 엽록소 측정치와 토양 질소공급능력의 상호관계
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Hong, Soon-Dal
(Collge of Agriculture, Chungbuk National University) ;
- Kim, Ki-In (Collge of Agriculture, Chungbuk National University) ;
- Park, Hyo-Taek (Collge of Agriculture, Chungbuk National University) ;
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Kang, Seong-Soo
(Collge of Agriculture, Chungbuk National University)
- Published : 2001.04.30
Abstract
To find diagnosing method of nitrogen status in tomato plant for determining optimum application rate of side dress, chlorophyll reading values were measured by portable chlorophyll meter(SPAD 502, Minolta), and compared with nitrogen supplying capability of soils. Regression between dry weight, amount of nitrogen uptake, and chlorophyll reading at stalk positions of tomato grown on the condition of no fertilization were evaluated For 6 green house soils with different nitrate concentrations ranged from
질산태 질소 수준이