Micronutrients in Crop Production

Fageria, N. K.; Baligar, V. C.; Clark, R. B.

doi:10.1016/s0065-2113(02)77015-6

Cited by 666 publications

(449 citation statements)

References 259 publications

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“…Fe availability is indeed the function of solubility rather than of its abundance in the soil (Sahrawat 2000;Guerinot 2001;Hell and Stephan 2003;Pirzadah et al 2010). Zinc deficiency is common in soils with neutral and alkaline pH (calcareous, saline-sodic, and sodic soils), intensively cropped soils, soils with poor drainage, and lowland rice soils (Marschner 1995;Fageria et al 2002;Alloway 2009;Koegel-Knabner et al 2010;Pirzadah et al 2010).…”

Section: Iron and Zinc Uptake Accumulation And Translocation To mentioning

confidence: 99%

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Nutritionally Enhanced Staple Food Crops

Dwivedi

Sahrawat

Kedar

et al. 2012

Plant Breeding Reviews

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Section: Iron and Zinc Uptake Accumulation And Translocation To mentioning

confidence: 99%

“…Micronutrient availability in the soil, especially of Fe and Zn, is influenced by a range of soil, plant, and climatic factors (Fageria et al 2002). The Fe and Zn deficiency-related problems in various soil orders are further influenced by the nature of the plant material from which the soil is developed (Dudal 1976).…”

Section: E Nutrient Use Efficiencymentioning

confidence: 99%

Nutritionally Enhanced Staple Food Crops

Dwivedi

Sahrawat

Kedar

et al. 2012

Plant Breeding Reviews

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“…Because high yielding maize varieties are selected grown, chemical fertilizers are of increased purity and cropping has become increasingly intensive, Zn deficiency in soil-crop system has become more prevalent in last decades (Fageria et al 2002). Zinc applications are reported to increase maize grain yield around world (Harris et al 2007;Hossain et al 2008;Potarzycki and Grzebisz 2009;Singh and Banerjee 1986).…”

Section: Introductionmentioning

confidence: 99%

Zinc fertilizer placement affects zinc content in maize plant

et al. 2013

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Background and aims Adequate zinc (Zn) in maize (Zea mays L.) is required for obtaining Zn-enriched grain and optimum yield. This study investigated the impact of varying Zn fertilizer placements on Zn accumulation in maize plant. Methods Two pot experiments with same design were conducted to investigate the effect of soil Zn h etero ge neity by mixing Zn SO 4 ·7H 2 O (10 mg Zn kg −1 soil on an average) in 10-15, 0-15, 25-30, 0-30, 30-60 and 0-60 cm soil layers on maize root growth and shoot Zn content at flowering stage in experiment-1, and assessing effects on grain Zn accumulation at mature stage in experiment-2. Results In experiment-1, Zn placements created a large variation in soil DTPA-Zn concentration (0.3-29.0 mg kg −1 ), which induced a systemic and positive response of root growth within soil layers of 0-30 cm; and shoot Zn content was increased by 102 %-305 % depending on Zn placements. Supply capacity of Zn in soil, defined as sum of product of soil DTPA-Zn concentration and root surface area at different soil layers, was most related to shoot Zn content (r=0.82, P<0.001) via direct and indirect effects according to path analysis. In experiment-2, Zn placements increased grain Zn concentration by up to 51 %, but significantly reduced the grain Zn harvest index from 50 % by control to about 30 % in average. Conclusion Matching the distribution of soil applied Zn with root by Zn placement was helpful to maximize shoot Zn content and grain Zn concentration in maize.

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“…[1] Zinc availability is reported to be associated with its transformation in soils and plant continuum through various mechanisms, such as adsorption by clay surfaces, hydrous oxide minerals, organic matter and so forth, which affect crop Zn uptake. Thus, understanding the distribution of Zn among various fractions of soils will help to characterize the chemistry of Zn in soils and possibly its availability for plant uptake.…”

Section: Introductionmentioning

confidence: 99%

Zinc fractionation of tropical paddy soils and their relationships with selected soil properties

Soltani

Hanafi

Samsuri

et al. 2015

Chemical Speciation & Bioavailability

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Knowledge of zinc (Zn) distribution among various fractions will help to predict the potential of the soil to supply sufficient Zn for crop production. The present study was done to investigate Zn fractions, Zn availability factor (AF) and their relationship with soil properties of Zn-deficient tropical paddy soils. The samples of two soil orders (six soil series) were sequentially extracted with chemical extractants in two different growth stages of rice (maximum tillering and flowering stages). The proportion of Zn fractions extracted at the maximum tillering stage followed the order, water soluble plus exchangeable (WE) < crystalline sesquioxide (Cry) < manganese oxide (MN) < organically bound (Org) < amorphous sesquioxide (Amor) < residual Zn (Res), whereas the order at the flowering stage was as follows: WE < Mn < Cry < Org < Amor < Res. Cation exchange capacity (CEC), clay content and organic carbon (OC) were the most important factors controlling the distribution of Zn in soils. The AF was low in Tok Young (1.79%), high in Telemong (17%) and medium in the rest of soil series (around 8%). A stepwise multiple linear regression and principal component analyses showed that OC, clay content and CEC were the main variables that explained the predictability of Zn fractions. The result of the length of submerging showed that the WE, Org and Cry concentrations decreased, while Amor, MN, and the sum of all Zn fractions increased with increase in the flooding period. The extractability and solidphase fractionation of Zn in two different times of soil sampling showed the importance of timing of Zn fertilizer application and flooding or pre-flooding in Zn availability.

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Micronutrients in Crop Production

Cited by 666 publications

References 259 publications

Nutritionally Enhanced Staple Food Crops

Nutritionally Enhanced Staple Food Crops

Zinc fertilizer placement affects zinc content in maize plant

Zinc fractionation of tropical paddy soils and their relationships with selected soil properties

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