Use Diluted Tomato Petiole Sap for K Measurement with the Cardy Meter
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چکیده
منابع مشابه
Measuring K+ in Rice Basal Stem Sap with a Cardy Meter
A rice (Oryza sativa) experiment was conducted to determine the accuracy of a fast tissue testing method using a Horiba Cardy K+ meter. Rice was field-grown in three soil potassium regimes. At three early reproductive growth stages (R0, R1, and R2), stem samples from the basal six inches of rice plants were collected and analyzed for K content. Basal stem samples were tested with extracted sap ...
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15 صفحه اولEvaluation of Rapid Methods for Nitrate Plant Sap Analysis of Globe Artichoke Grown in Sand Culture
Artichoke has a high nitrogen requirements and often farmers apply excessive amounts of fertiliser that contributes to groundwater pollution by nitrate. Artichoke nitrogen fertilisation can be made more efficient by plant analysis. Petiole sap nitrate concentrations in recently mature leaves was tested as an indicator of crop nitrogen status in artichoke grown in sand culture. Two rapid methods...
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Petiole sap N and K quick tests offer fast and accurate in-field analysis for N and K and have been calibrated for some vegetable crops in Florida. This paper summarizes 10 years of research conducted in Florida on petiole sap testing for N and K. Petiole sap nitrate-N and K concentrations correlated highly with wholeleaf N and K concentrations and decreased through the season for all vegetable...
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ژورنال
عنوان ژورنال: HortScience
سال: 2004
ISSN: 0018-5345,2327-9834
DOI: 10.21273/hortsci.39.4.795d