Phytotoxic doses of boron in contrasting soils depend on soil water content

Mertens, Jean–François; Laer, L. Van; Salaets, Peter; Smolders, Erik

doi:10.1007/s11104-010-0666-x

Cited by 10 publications

(6 citation statements)

References 19 publications

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“…A decrease of 10% in barley root growth has been reported when soil solution boron concentration exceeded the -1 values between 16 and 59 mg l across different soils (Mertens et al, 2011). In the present study it appears that band application @ -1 5.0 and 7.5 kg ha caused high boron concentration in the root zone which led to higher boron uptake causing toxicity in the present study.…”

Section: Methodssupporting

confidence: 50%

Evaluation of colemanite as a slow release source of boron fertilizer for potato

Sharma¹,

Dua²,

Kumar³

et al. 2019

JEB

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The present study was conducted with an objective to assess the suitability of colemanite (Ca 2 B .O .5H O) as a slow release source of boron to potato crop. 6 11 2-1 Soil was incubated with boron (1.25 and 2.50 mg kg soil) using borax and colemanite for six weeks. Soil moisture was maintained at 80% field capacity. Soil samples were analyzed weekly for hotwater extractable boron content. Direct and residual effects of borax and colemanite on potato plant growth and boron uptake were studied in pot experiments. Leaf boron concentration was measured by an ICP-OES. In laboratory incubation, although the rate of release of hot water extractable boron from colemanite was slower than borax, it was enough to meet the requirement of potato crop. Application of both the sources of boron increased its content significantly in soil as well as in potato leaves. This study revealed that boron uptake from colemanite was comparable to borax in meeting the boron requirement of potato. Soil incubation and pot experiment studies showed that colemanite is a suitable slow release source of boron fertilizer for potatoes.

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Section: Methodssupporting

confidence: 50%

Evaluation of colemanite as a slow release source of boron fertilizer for potato

Sharma¹,

Dua²,

Kumar³

et al. 2019

JEB

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show abstract

“…In addition, critical levels depend on soil type, pH, water status, texture, air humidity and temperature, plant species, and genotype [127,144]. For example, it was found that boron concentrations exhibiting toxic effects on barley (root growth reduction by 10%) varied about 10-fold among 22 tested soils differing in pH, texture, and percentage of organic matter [145].…”

Section: Soil Boronmentioning

confidence: 99%

Boron Toxicity and Deficiency in Agricultural Plants

Brdar-Jokanović

2020

IJMS

281

119

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Boron is an essential plant micronutrient taken up via the roots mostly in the form of boric acid. Its important role in plant metabolism involves the stabilization of molecules with cis-diol groups. The element is involved in the cell wall and membrane structure and functioning; therefore, it participates in numerous ion, metabolite, and hormone transport reactions. Boron has an extremely narrow range between deficiency and toxicity, and inadequate boron supply exhibits a detrimental effect on the yield of agricultural plants. The deficiency problem can be solved by fertilization, whereas soil boron toxicity can be ameliorated using various procedures; however, these approaches are costly and time-consuming, and they often show temporary effects. Plant species, as well as the genotypes within the species, dramatically differ in terms of boron requirements; thus, the available soil boron which is deficient for one crop may exhibit toxic effects on another. The widely documented intraspecies genetic variability regarding boron utilization efficiency and toxicity tolerance, together with the knowledge of the physiology and genetics of boron, should result in the development of efficient and tolerant varieties that may represent a long-term sustainable solution for the problem of inadequate or excess boron supply.

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“…B absorbed by roots is transported via xylem, mostly driven by plant transpiration, and then distributed to all plant tissues (Huang et al 2005;Mertens et al 2011;Wimmer and Eichert 2013;Mesquita et al 2016). However, this nutrient exhibits low mobility in the phloem of citrus (Boaretto et al 2008) and, consequently, limited redistribution in the trees (Liu et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Soil boron fertilization: The role of nutrient sources and rootstocks in citrus production

Mattos¹,

Hippler²,

Boaretto³

et al. 2017

Journal of Integrative Agriculture

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Boron (B) is a key element for citrus production, especially in tropical regions, where the nutrient availability is commonly low in the soil. In addition, information about doses, fertilizer sources, methods of application and, particularly, differential nutrient demand of scion/rootstock combinations are required for efficient fertilization of commercial groves. In a non-irrigated sweet orange orchard (cv. Natal), grafted onto Rangpur lime, Swingle citrumelo or Sunki mandarin, we studied the application of two sources of B: boric acid (17% B, soluble in water) and ulexite (12% B, partially soluble in water) at four levels of supply (control without B, and soil application of 2, 4 and 6 kg ha-1 yr-1 of B). The experiment was carried out for three years. Boron availability in the soil and concentration in the leaves, as well as the fruit yield and quality of trees were evaluated. Soil B extracted with hot water and total leaf B positively correlated with doses of the nutrient applied to the trees. Levels of B in the soil and in the leaves did not vary with fertilizer sources. Fruit yield of trees grafted onto Rangpur lime and Swingle citrumelo was more responsive to B doses than those grafted onto Sunki mandarin. Maximum fruit yield of trees grafted onto Swingle was obtained with 3.2 kg ha-1 yr-1 of B, and leaf B level of 280 mg kg-1 what point out to a highest demand for B when this combination was compared with other rootstocks. Furthermore, fertilization with B did not affect the quality of fruits, but correlated with B and potassium (K) concentrations in the leaves. These results also support that the current recommendations for levels of B in leaves should be revisited.

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Phytotoxic doses of boron in contrasting soils depend on soil water content

Cited by 10 publications

References 19 publications

Evaluation of colemanite as a slow release source of boron fertilizer for potato

Evaluation of colemanite as a slow release source of boron fertilizer for potato

Boron Toxicity and Deficiency in Agricultural Plants

Soil boron fertilization: The role of nutrient sources and rootstocks in citrus production

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