Liming Materials and Practices

Barber, S. A.

doi:10.2134/agronmonogr12.2ed.c4

Cited by 56 publications

(38 citation statements)

References 55 publications

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“…The increase in Mehlich 1 extractable soil Cu was linear ) and this may be related to lime addition. Barber [23] reported that liming materials contain Cu in the range of 0.3 to 89 g kg −1 , with an average value of 2.7 g kg −1…”

Section: Soil Ph and Mehlich 1 Extractable Soil Copper Zinc Iron Anmentioning

confidence: 99%

Evaluation of Tropical Legume Cover Crops for Copper Use Efficiency

Fageria¹,

Baligar²

2014

AJPS

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Cover crops are important components of cropping systems due to their role in improving soil quality. Lack of adequate levels of soil micronutrients prevents the success of cover crops in highly weathered tropical soils. A greenhouse experiment was conducted with the objective to evaluate copper use efficiency of nine tropical legume cover crops. The copper levels used were 0, 5, 10 and 20 mg Cu kg −1 of soil. Shoot dry weight, maximum root length and root dry weight significantly increased in a quadratic fashion with increasing soil Cu levels in the range of 0 to 20 mg kg −1 soil. Cu x cover crops interactions for shoot dry weight, root dry weight, maximum root length and contribution of root to the total dry weight were significant, indicating different responses of cover crops with the variation in soil Cu levels. Overall, maximum shoot dry weight was obtained with the application of 13 mg Cu kg −1 . Similarly, maximum root dry weight and maximum root length were obtained with the application of 12 and 14 mg Cu kg −1 of soil. Root dry weight and maximum root length were significantly and positively related to shoot dry weight, indicating that a vigorous root system is important for improving productivity of cover crops grown on Brazilian Oxisols, especially where deficiency of micronutrients such as Cu exists. The Cu concentration in the plant tissue decreased in a quadratic fashion whereas, Cu uptake increased with increasing Cu application rate from 0 to 20 mg kg −1 soil. There was a significant variation observed in Cu use efficiency among cover crop species. Increasing applied Cu levels significantly increased soil pH and Mehlich 1 extractable soil Cu, Zn, Mn and Fe concentrations in the soil solution.

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Section: Soil Ph and Mehlich 1 Extractable Soil Copper Zinc Iron Anmentioning

confidence: 99%

Evaluation of Tropical Legume Cover Crops for Copper Use Efficiency

Fageria¹,

Baligar²

2014

AJPS

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“…Calcium silicate is a dense, granular by-product of the steel industry that has become less ubiquitous with time in the United States. With a calcium carbonate equivalency ranging from 50 to 85%, calcium silicate has long served as an eligible, regionally cost-effective ingredient of cement and agricultural limestone products [19,20]. While neutralization of exchangeable acidity by traditional carbonate and hydr/oxide agents generate CO 2 and/or H 2 O [20], the same by Ca/MgSiO 3 produces silicic acid, H 4 SiO 4 [13].…”

Section: Introductionmentioning

confidence: 99%

Creeping Bentgrass Fairway Wear Resistance by Granular Topdressing of Ca/Mg-rich Liming Agents

2020

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Depletion of extractable silicon (Si) from surface soil depths has been observed in managed production systems. While not characterized as a plant essential nutrient, Si accrues in epidermal and vascular tissue of monocotyledonous plants. A field evaluation of granular Ca/Mg-rich liming agents was initiated on a creeping bentgrass (Agrostis stolonifera L. cv. Declaration) fairway in 2010. Excluding the control, treatments comprised 2440 kg (ha year) −1 topdressing of calcitic/dolomitic blended limestone or Ca/Mg-SiO 3 in semi-annual or more frequent "split" applications. Each week of the 2011 and 2012 growing seasons, a dedicated wear simulator trafficked the fairway plots. Measures of canopy quality, clipping yield, tissue composition, soil pH, and plant-available soil Si levels were collected frequently. The described Ca/Mg-SiO 3 annual topdressing rates correlated with acetic acid extractable Si levels >30 mg kg −1 in the 0-to 5-cm soil depth. Neither creeping bentgrass vigor, nutrition, nor leaf water content was influenced by significantly elevated levels of soil and tissue Si. Relative to non-trafficked plots, all split plots within trafficked main plots showed similarly reduced canopy quality regardless of topdressing treatment. If a critical threshold leaf Si concentration for creeping bentgrass wear tolerance enhancement exists, it is unlikely <11 g Si kg −1 .

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“…Residual lime is the proportion of unreacted lime remaining after neutralization of substrate pH. In addition, the effectiveness of a lime material to neutralize the acidity of substrates depends on its neutralizing capacity, fineness of grinding (particle size), chemical composition [providing calcium (Ca) and/or magnesium (Mg)], and mineralogy (Barber, 1984). Particle size of the liming material directly influences the dissolution rate and its effectiveness in neutralizing substrate acidity (Huang et al, 2007).…”

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confidence: 99%

Response of Calceolaria ×herbeohybrida Cultivars to Substrate pH and Corresponding Leaf Tissue Nutrient Concentration Effects

Owen¹

2019

horts

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Calceolaria (Calceolaria ×herbeohybrida) is a flowering potted greenhouse crop that often develops upper-leaf chlorosis, interveinal chlorosis, and marginal and leaf-tip necrosis (death) caused by cultural practices. The objectives of this research were to 1) determine the optimal incorporation rate of dolomitic and/or hydrated lime to increase substrate pH; 2) determine the influence of the liming material on substrate pH, plant growth, and leaf tissue nutrient concentrations; and 3) determine the optimal substrate pH to grow and maintain during calceolaria production. Sphagnum peatmoss was amended with 20% (by volume) perlite and incorporated with pulverized dolomitic carbonate limestone (DL) and/or hydrated limestone (HL) at the following concentrations: 48.1 kg·m−3 or 144.2 kg·m−3 DL, 17.6 kg·m−3 DL + 5.3 kg·m−3 HL, or 17.6 kg·m−3 DL + 10.6 kg·m−3 HL to achieve a target substrate pH of 4.5, 5.5, 6.5, and 7.5, respectively. Calceolaria ‘Orange’, ‘Orange Red Eye’, ‘Yellow’, and ‘Yellow Red Eye’ were grown in each of the prepared substrates. For all cultivars, substrate solution pH increased as limestone incorporation concentration and weeks after transplant (WAT) increased, although to different magnitudes. For example, as limestone incorporation increased from 48.1 kg·m−3 DL to 17.6 kg·m−3 DL + 10.6 kg·m−3 HL, substrate solution pH for ‘Orange’ calceolaria increased from 4.1 to 6.9 to 4.8 to 7.2 at 2 and 6 WAT, respectively. Substrate solution electrical conductivity (EC) and growth indices were not influenced by limestone incorporation, but total plant dry mass increased. Few macronutrients and most micronutrients were influenced by limestone incorporation. Leaf tissue iron concentrations for ‘Orange’, ‘Orange Red Eye’, ‘Yellow’, and ‘Yellow Red Eye’ calceolaria decreased by 146%, 91%, 71%, and 84%, respectively, when plants were grown in substrates incorporated with increasing limestone concentrations from 144.2 kg·m−3 DL to 17.6 kg·m−3 DL + 10.6 kg·m−3 HL (pH 6.5–6.9). Therefore, incorporating 144.2 kg·m−3 DL into peat-based substrates and maintaining a pH <6.5 will avoid high pH–induced Fe deficiency and prevent upper-leaf and interveinal chlorosis.

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Liming Materials and Practices

Cited by 56 publications

References 55 publications

Evaluation of Tropical Legume Cover Crops for Copper Use Efficiency

Evaluation of Tropical Legume Cover Crops for Copper Use Efficiency

Creeping Bentgrass Fairway Wear Resistance by Granular Topdressing of Ca/Mg-rich Liming Agents

Response of Calceolaria ×herbeohybrida Cultivars to Substrate pH and Corresponding Leaf Tissue Nutrient Concentration Effects

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