Suitability of Multinutrient Extractants for Evaluation Of Available Soil Zinc for Tomato Nutrition Of Karnataka Soils

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چکیده

Pot experiment was conducted at University of Agricultural Sciences, Bangalore, Karnataka, which received five treatments i.e., 0, 5, 10, 15, 20 kg ZnSO4/ha. Among all the Recommended NPK + ZnSO4 @ kg/ha recorded highest mean dry matter yields tomato. The amount zinc extracted by different extractants were in following order as Mehlich-3 - Zn > 0.1 N HCl AB-DTPA 0.01 EDTA DTPA M 1 NH4OAc (pH 4.6) 7) Zn. various tried gave positive and higher significant correlation with Brays per cent Yield (r = 0.781). next better 0.726) 0.576) also significantly positively correlated yield. critical limits DTPA, Mehlich-3, AB-DTPA, tomato plant fruit graphical method 1.12, 2.15, 1.20, 34 58 mg/kg, respectively. Bangladesh J. Bot. 51(4): 655-662, 2022 (December)

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ژورنال

عنوان ژورنال: Bangladesh Journal of Botany

سال: 2022

ISSN: ['0253-5416', '2079-9926']

DOI: https://doi.org/10.3329/bjb.v51i4.63482