tailieunhanh - Evaluation of AB - DTPA extractant for multinutrients extraction in soils

To evaluate ABDTPA, a multi nutrient extractant for simultaneous assessment of available P, K, S, Fe, Mn, Zn and Cu, 50 soil samples with wide range of pH were collected and analysed with ABDTPA and established standard methods. A pot culture experiment with maize crop was conducted to correlate the nutrients extracted by extractants with plant uptake. Correlation and regression analysis were carried out separately for each nutrient for acid, alkaline, neutral and all soils to obtain the relationship between amount of nutrients extracted by different methods and also with plant uptake. | Evaluation of AB - DTPA extractant for multinutrients extraction in soils

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