Comparison of mehlich‐1 and mehlich‐3 extractable soil boron with hot‐water extractable boron

Shuman, L. M.; Bandel, V. A.; Donohue, S. J.; Isaac, Robert A; Lippert, Robert; Sims, J. T.; Tucker, M. R.

doi:10.1080/00103629209368565

Cited by 30 publications

(14 citation statements)

References 20 publications

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“…Results reported by different researchers [59,[71][72][73] indicate that Mehlich 3 extracts comparable amounts of B as the hot water-soluble method. Consequently, we have used the sufficiency range (0.5-1 mg kg −1 ) of B extracted using hot water-soluble method and applied it to Mehlich 3 extractable B.…”

Section: Micronutrientsmentioning

confidence: 89%

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Soil fertility status and wheat nutrient content in Vertisol cropping systems of central highlands of Ethiopia

et al. 2015

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Background: Land degradation reduces agricultural productivity and poses a serious threat on food security status of households. In Ethiopia, farmers have been using only urea and di-ammonium phosphate for more than 15 years. Several reports that indicate lack of response to these fertilizers, which could be due to limitation of nutrients other than nitrogen and phosphorus. Therefore, the present study was initiated to evaluate the soil fertility status of ten sites in central highlands Vertisols of Ethiopia and wheat nutrient content. Results:The physico-chemical properties of soils showed that the soils were clayey in texture, neutral to slightly alkaline (pH 7.2-7.9) and low to medium in their organic matter (1.6-3.2 %) content. Total N content was low in 100 % of the samples while 80 % of the soil samples showed P deficiency (<10 mg kg −1 ). Exchangeable K, Ca and Mg in all soil samples were high, while available sulfur was low. On the other hand, K to Mg ratio varied from 0.13:1 to 0.44:1, indicating Mg induced K deficiency. All soil samples were adequate when analyzed by ammonium bicarbonate diethylene tri-amine penta-acetic acid extractable Cu (>0.5 mg kg ) and acid ammonium oxalate extractable Mo (<0.1 mg kg −1 ) were found to be low in all soil samples. The plant analysis data showed that all samples were low in N, P and K, while high in Ca and Mg concentrations. The deficiency of tissue K content was not predicted by the soil exchangeable K test. Plant micronutrient analysis showed that Cu, Fe, Mn and Cl concentrations were within the sufficiency range while Zn was deficient in all of the samples. Conclusions:Soil and/or tissue test results are indicative of deficiency of N, P, K, S, Zn, B and Mo that could be amended by fertilizer application, although more data are needed to thoroughly support this conclusion. The highest correlation (r > 0.90) between soil and plant nutrient content was observed for P, K, Mg, Cu, Fe, Mn and Zn, implying that flag leaves at flowering stage can be used to calibrate soil and plant contents for the deficient nutrients.

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Section: Micronutrientsmentioning

confidence: 89%

“…Based on the [58,59] critical value given by Soltanpour [56] and Jones [57], samples from all sites were found to have sufficient level of available Mn ( [66] in central highland Vertisols of Ethiopia. Zinc has low mobility in soils and tendency of being adsorbed on clay particles [68].…”

Section: Micronutrientsmentioning

confidence: 99%

Soil fertility status and wheat nutrient content in Vertisol cropping systems of central highlands of Ethiopia

et al. 2015

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“…Mehlich 3 extraction has been compared mainly to hot water B extraction (Mylavarapu et al 2002;Shuman et al 1992;Simard, Charron, and Pageua 1996;Walworth, Gavlak, and Panciera 1992) but has not been compared to PHW or DTPA -sorbitol. Because Mehlich 3 use would be limited to neutral to acid soils, this study focuses on a limed acid Darco fine loamy sand soil from the Coastal Plain of eastern Texas to which rates of B were applied followed by either incubation without plants or planting to alfalfa in greenhouse pots.…”

Section: Introductionmentioning

confidence: 99%

“…Elrashidi, Mays, and Lee (2003) assessed Mehlich 3 and AB -DTPA extraction of 15 elements on 30 acidic and 20 alkaline soils from 21 states and recommended both as multi-element extractants but did not include B in the suite of elements measured. Mehlich 3 extraction was suggested as a suitable alternative to hot water by Shuman et al (1992) primarily for low pH soils. Mehlich 3 extraction of B on acidic Florida soils was better than Mehlich 1, but comparison to hot water extraction at various rates of B application was not made (Mylavarapu et al 2002).…”

Section: Introductionmentioning

confidence: 99%

Mehlich 3 Extraction of Boron in Boron Treated Soils as Compared to Other Extractants

Redd¹,

Shiffler²,

Jolley³

et al. 2008

Communications in Soil Science and Plant Analysis

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Hot water extraction (HW) is time-consuming, highly variable, and losing popularity as the standard method for estimating plant-available boron (B) in soil. Proposed alternatives are not widely used and guesstimation is replacing assessment at many soil test facilities. Mehlich 3 is increasingly promoted as a universal extractant, and diethylenetriaminepentaacetic acid (DTPA) -sorbitol and pressurized hot water (PHW) are effective and comparable to hot water extraction but also simpler and easier. Mehlich 3 B extraction has been compared mainly to hot water extraction. Because Mehlich 3 usage would be limited to neutral to acid soils, this study used a limed acid Darco loamy fine sand (loamy, siliceous, semiactive, thermic Grossarenic Paleudult) from eastern Texas to which 10 rates of B were applied followed by either incubation without plants or planting to alfalfa in greenhouse pots. Mehlich 3 extraction of soils obtained from a long-term experiment on Darco soil from which alfalfa yield response has already been related to hot water, DTPA -sorbitol, and PHW is reported. The purpose was to determine the efficiency of Mehlich 3 B extraction compared to hot water, PHW, and DTPA -sorbitol in these B-fertilized soils. Mehlich 3 -extractable B significantly correlated with the rate of B application to incubation, greenhouse, and field soils and with B concentration and total B uptake in alfalfa in a greenhouse experiment. However, yield responses to B application were

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“…Other extractants for B, such as, NH 4 OAc, mannitol (Aitken et al, 1987), mannitol-CaCl 2 (Cartwright et al, 1983), CH 3 COOH, dilute concentrations of HC1 (Renan and Gupta, 1991), multi-element extractants such as NH 4 HCO 3 -DTPA (GestringandSoltanpour, 1984(GestringandSoltanpour, ,1987 and the Mehlich 1 and3 solutions (Shuman et al, 1992), were used, for assessing plant available B. At the present, hot water extractable B appears to be the best index for soil available B (Offiah and Axley, 1993).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the NH₄HCO₃‐DTPA soil test for assessing boron availability to wheat

Antoniadis

Barbayiannis

2000

Communications in Soil Science and Plant Analysis

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The NH 4 HCO 3 -DTPA (AB-DTPA), 1 MNH 4 HCO 3 , 0.005 M DTPA, pH=7.6, was proposed as a multi-element extractant, for evaluating macro and micronutrients availability to plants. AB-DTPA was also evaluated as a soil test, for assessing boron availability and toxicity to alfalfa. In a pot experiment, ten soils of Northern Greece were used to assess AB-DTPA as an extractant of available boron to wheat (Triticum aestivum L., cv. Yecora), in comparison with hot water and saturation extract. Boron (B) was added as borax (Na 2 B 4 O 7 *10H 2 O) to the ten soils, at rates equal to 0, 3, and 5 mg B kg -1 . Wheat was grown in pots containing the boron amended soils to the stage of tillering, and dry aboveground biomass, B concentration and B uptake by wheat were determined. AB-DTPA extractable B was significantly greater than saturation extract and similar to hot water at each B application rate, and was correlated significantly with hot water (r=0.84), or with saturation extract (r=0.48). Extractable boron by all extractants, boron concentration in wheat and boron uptake were significantly affected by the soil x B application rate interaction. In assessing B availability to wheat using AB-DTPA as a soil 669 670 MATSI, ANTONIADIS, AND BARBAYIANNIS test, CEC should be included in the regression equation for B concentration, or pH for B uptake. However, the corresponding adjusted coefficients of determination for B concentration (adjusted R 2 =0.46) and B uptake (adjusted R 2 =0.48) were similar or lower to those of hot water (adjusted R 2 =0.45 and 0.60, respectively) and the saturation extract (adjusted R 2 =0.70 and 0.49, respectively), when the latter two soil tests were used in the regression equations without the inclusion of any soil property.

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Comparison of mehlich‐1 and mehlich‐3 extractable soil boron with hot‐water extractable boron

Cited by 30 publications

References 20 publications

Soil fertility status and wheat nutrient content in Vertisol cropping systems of central highlands of Ethiopia

Soil fertility status and wheat nutrient content in Vertisol cropping systems of central highlands of Ethiopia

Mehlich 3 Extraction of Boron in Boron Treated Soils as Compared to Other Extractants

Evaluation of the NH₄HCO₃‐DTPA soil test for assessing boron availability to wheat

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Comparison of mehlich‐1 and mehlich‐3 extractable soil boron with hot‐water extractable boron

Cited by 30 publications

References 20 publications

Soil fertility status and wheat nutrient content in Vertisol cropping systems of central highlands of Ethiopia

Soil fertility status and wheat nutrient content in Vertisol cropping systems of central highlands of Ethiopia

Mehlich 3 Extraction of Boron in Boron Treated Soils as Compared to Other Extractants

Evaluation of the NH4HCO3‐DTPA soil test for assessing boron availability to wheat

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Evaluation of the NH₄HCO₃‐DTPA soil test for assessing boron availability to wheat