Evaluation of Chemical Extractants for Predicting Lowland Rice Response to Zinc in Highly Calcareous Soils

Maftoun, M.; Nia, H. Haghighat; Karimian, N.; Ronaghi, Abdolmajid

doi:10.1081/css-120020443

Cited by 9 publications

(3 citation statements)

References 22 publications

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“…Among the three calibration techniques, the Mitscherlich–Bray equation has been mainly used for the estimation of critical levels of the macronutrients P and K ( Bray , 1944, 1945; Nelson and Anderson , 1977; Sonar and Babhulkar , 2002; Bose et al, 2010; Afzal et al, 2014) and not for micronutrients. Similarly, the Cate and Nelson graphical technique has been mainly used for the macronutrients P and K, but it has also been used for the other metal micronutrients ( Havlin and Soltanpour , 1982; Edlin et al, 1983; Akram et al, 1995; Al‐Mustafa et al, 2001; Rezaei and Malakouti , 2001; Maftoun et al, 2003; Srivastava et al, 2008; Srivastava and Srivastava , 2008).…”

Section: Discussionmentioning

confidence: 99%

“…In discontinuous models, plotting relative yields against soil test values helps identifying a critical level of the nutrient in the soil, which separates the soils into two distinct and discontinuous categories, i.e ., those that a yield response to added nutrient is likely and those that such a response is unlikely ( Nelson and Anderson , 1977). The graphical technique of Cate and Nelson belongs to this group of models and has been used by several researchers ( Cate and Nelson , 1965, 1971; Havlin and Soltanpour , 1982; Edlin et al, 1983; Akram et al, 1995; Al‐Mustafa et al, 2001; Rezaei and Malakouti , 2001; Maftoun et al, 2003; Srivastava et al, 2008; Srivastava and Srivastava , 2008) for the estimation of the critical levels of various nutrients.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of nickel's sufficiency critical levels in cultivated soils, employing commonly used calibration techniques

Nikoli

Barbayiannis

2016

J. Plant Nutr. Soil Sci.

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Although Ni has been officially recognized as an essential micronutrient for all higher plants since 2004, research on assessing its sufficiency critical levels with different soil tests is missing in the literature. The objective of the study was to determine Ni critical levels in unpolluted cultivated soils utilizing four methods, employing three commonly used calibration techniques. Ten soils with different physical–chemical properties and low Ni content were treated with Ni at rates of 1, 2, 4, and 8 mg kg−1. After equilibration for one month, the soils were analyzed for extractable Ni by four methods, namely DTPA, AB‐DTPA, AAAc‐EDTA, and Mehlich‐3. Response to soil‐applied Ni was assessed by a greenhouse pot experiment, with the untreated and Ni‐treated soils in three replications, using ryegrass (Lolium perenne L.). The aboveground biomass of ryegrass was harvested two months after sowing, dry weight of biomass was measured and relative biomass yield was calculated. Nickel's critical levels were determined employing the: (a) graphical technique of Brown and co‐workers, (b) Mitscherlich–Bray equation, and (c) Cate and Nelson graphical technique. According to the first technique, Ni critical levels were ≈ 2 mg kg−1 for the DTPA and AB‐DTPA methods, and 6.0 and 5.3 mg kg−1 for the AAAc‐EDTA and Mehlich‐3 methods, respectively. Similar levels were obtained by the Mitscherlich–Bray equation. However, the critical levels assessed by the Cate and Nelson technique were lower and ranged from 0.5 to 1.3 mg kg−1 for all four methods. Conclusively, Ni sufficiency critical levels for all four methods are expected to range at levels of a few mg Ni kg−1 of soil. As far as the three calibration techniques are concerned, a distinct boundary between Ni response and non‐response was accomplished by none. However, the fact that 60–74% of the soils were correctly separated into responsive and non‐responsive to added Ni by the graphical technique of Brown and co‐workers suggests that this is the most suitable technique.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Assessment of nickel's sufficiency critical levels in cultivated soils, employing commonly used calibration techniques

Nikoli

Barbayiannis

2016

J. Plant Nutr. Soil Sci.

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“…0.005 M DTPA. Maftoun et al (2003) observed that Zn extracted by ethylenediaminetetraacetic acid ammonium carbonate [EDTA-(NH 4 ) 2 CO 3 ] and diethylenetriaminepentaacetic acid calcium chloride (DTPA-CaCl 2 ) best explained the variation in plant dry matter, whereas DTPA-(NH 4 ) 2 CO 3 -extractable Zn was more appropriate to predict the variation in Zn uptake by rice.…”

Section: Introductionmentioning

confidence: 97%

Evaluation of Various Zinc Extractants in Lowland Rice Soil under the Influence of Zinc Sulfate and Chelated Zinc

Naik¹,

Das

2010

Communications in Soil Science and Plant Analysis

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Field experiments were conducted on rice (cv 'IET 4094') in an Aeric endoaquept (pH 7.2) to evaluate the various zinc (Zn) extractants in lowland rice soil under the influence of Zn sulfate and chelated Zn. The diethylenetriaminepentaacetic acid (DTPA), 0.1 N hydrochloric acid (HCl), and 0.05 N HCl-extractable Zn concentrations in soil increased initially up to the Z29 stage of crop growth when Zn was applied as a single basal source, being greater with Zn ethylenediaminetetraacetic acid (Zn-EDTA) compared to zinc sulfate (ZnSO 4 ) application. Among the various extractants, the performance of 0.1 N HCl in extracting Zn was better than the other two extractants and followed the trend 0.1 N HCl . 0.005 M DTPA . 0.05 N HCl. The greatest increase in grain and straw yield of rice was 37.8 and 20.4%, respectively, over the control in the treatment T 7 (1 kg Zn ha 21 as Zn-EDTA at basal).

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Mitigating zinc deficiency and achieving high grain Zn in rice through integration of soil chemistry and plant physiology research

2012

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Evaluation of Chemical Extractants for Predicting Lowland Rice Response to Zinc in Highly Calcareous Soils

Cited by 9 publications

References 22 publications

Assessment of nickel's sufficiency critical levels in cultivated soils, employing commonly used calibration techniques

Assessment of nickel's sufficiency critical levels in cultivated soils, employing commonly used calibration techniques

Evaluation of Various Zinc Extractants in Lowland Rice Soil under the Influence of Zinc Sulfate and Chelated Zinc

Mitigating zinc deficiency and achieving high grain Zn in rice through integration of soil chemistry and plant physiology research

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