Reaction Products and Solubility of Applied Zinc Compounds in Some Manitoba Soils

Kalbasi, M.; Racz, G. J.; Lewen-Rudgers, L. A.

doi:10.1097/00010694-197801000-00009

Cited by 27 publications

(9 citation statements)

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“…The water soluble zinc applied as zinc sulphate gets transformed into different forms like Zn (OH) and Zn (OH) 2 at a pH of 7.7 and 9.1 [22]; zinc carbonate in calcium rich alkali soils [10]; zinc phosphate in near neutral to alkali soils of high phosphorus application [4,11]; and zinc sulphide under reduced conditions. Zyrin et al [25] reported that zinc in soils associated mainly with hydrous Fe and Al oxides (14 to 38 per cent of total Zn) and with clay minerals (24 to 63 per cent).…”

Section: Introductionmentioning

confidence: 99%

Assessing the Zinc solubilization ability of Gluconacetobacter diazotrophicus in maize rhizosphere using labelled 65Zn compounds

et al. 2010

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Solubilization of insoluble zinc compounds like ZnCO 3 and ZnO by G. diazotrophicus was confi rmed using radiotracers. The zinc compounds (ZnCO 3 and ZnO) were tagged with 65 Zn. 65 ZnCO 3 and 65 ZnO was effectively solubilized and the uptake of zn by the plants also more in G. diazotrophicus inoculated treatments compared to the uninoculated treatments. Three types of soils (Zn defi cientsterile, Zn defi cient-unsterile, and Zn suffi cient-sterile) were used in experiment. Among the three soils, Zn deficient-unsterile soil registered maximum zinc solubilization compared to other two soils. This may be due to other soil microorganisms in unsterile soil. Application of ZnO with G. diazotrophicus showed better uptake of the nutrient.

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Section: Introductionmentioning

confidence: 99%

Assessing the Zinc solubilization ability of Gluconacetobacter diazotrophicus in maize rhizosphere using labelled 65Zn compounds

et al. 2010

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“…According to Giordano (20), critical values obtained with MgCh range from 0.4 to 1.0 ppm, thus indicating that the present soils had initial levels of exchangeable Zn approaching the lower limit of normality. Such low figures are most likely due to their high pH and calcareous nature, both of which characteristics have been described in the literature as positively correlated with low levels of exchangeable Zn in soils (21,22). As mentioned earlier, cultivation generally led to a rise in exchangeable Zn in the soils investigated.…”

Section: Resultsmentioning

confidence: 93%

Dynamics of zinc fractions in the soil plant system under conditions of intensive forage cropping

Torres‐Martín

Gallardo-Lara

1991

Communications in Soil Science and Plant Analysis

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A pot experiment was carried out to study intensive cropping of alfalfa in two calcareous soils from southern Spain. The overall evolution of plant Zn content in the two soils showed no clear-cut trends throughout the ten harvest studied. Zn levels ranged from 15.65 to 32.56 ppm, which although adequate from the standpoint of plant nutrition, was insufficient to meet the nutritional requirements of ruminants.Initial values of exchangeable Zn were low in both soils but rose steadily under the influence of sucessive cropping. Cultivation also led to significant short and medium term increases in Zn associated with the organic matter fraction, while in contrast showing a general tendency to reduce Zn associated with Fe oxides. In overall terms Zn content in the sand, silt, and clay fractions tended to fall as a result of alfalfa cropping. INTRODUCTIONIn Spain, the legume alfalfa has been typically cultivated under irrigation conditions using intensive agriculture methods. All the factors considered characteristic of intensive farming are amply reflected in the cultivation of this forage crop: high crop yield on the order of 5 or 6 harvests per annum are obtained, the crop remaining in the field continuously over a long period of time, normally on the order of five years, which in consequence requires the frequent application of fertilizers.

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“…The results are in accordance with the findings of Giordano and Mortvedt (1973) and Das, Karak, and Karmakar (2002). The amount of applied Zn recovered was less due to application of ZnSO 4 than to Zn-EDTA, which may be attributed to rapid dissociation of Zn +2 from ZnSO 4 and subsequent precipitation of Zn as ZnCO 3 and hydrated zinc carbonate [Zn 3 (CO 3 ) 2 (OH) 2 ] or hydroxide and carbonate (Kalbasi, Racz, and Lewen Rudgers 1978) At Z29 stage (Figures 1, 2, and 3), the greatest 0.1 N HCl, DTPA, and 0.05 N HCl-extractable Zn concentrations were 11.63, 6.79, and 4.62 mg kg 21 , respectively, in the treatment T 7 (1.0 kg Zn ha 21 as Zn-EDTA at basal) and recorded 37.5, 27.6, and 17.8% increases over their split application (T 8 ). Similarly, the basal applications of 10 and 20 kg Zn ha 21 as ZnSO 4 (T 2 and T 4 ) resulted in 7 and 23.6% increase in 0.1 N HCl, 53.1 and 12.6% increase in DTPA, and 58.6 and 17% increase in 0.05 N HCl over split applications (T 3 and T 5 ), respectively, at Z29 stage.…”

Section: Evaluation Of Zinc Extractsmentioning

confidence: 99%

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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Reaction Products and Solubility of Applied Zinc Compounds in Some Manitoba Soils

Cited by 27 publications

References 0 publications

Assessing the Zinc solubilization ability of Gluconacetobacter diazotrophicus in maize rhizosphere using labelled 65Zn compounds

Assessing the Zinc solubilization ability of Gluconacetobacter diazotrophicus in maize rhizosphere using labelled 65Zn compounds

Dynamics of zinc fractions in the soil plant system under conditions of intensive forage cropping

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

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