Determination of critical pH and Al concentration of acidic Ultisols for wheat and canola crops

Baquy, M. Abdulaha-Al; Li, Jiu-yu; Xu, Chenyang; Mehmood, Khalid; Xu, Ren-kou

doi:10.5194/se-8-149-2017

Cited by 64 publications

(26 citation statements)

References 57 publications

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“…The values of exchangeable acidity decreased with increased pH in the soil pedons studied regardless of the landform in the watershed. Baquy et al (2017) suggested that the critical level of exchangeable Al 3+ concentration ranged from 0.56-1.72 cmolc kg -1 depending on the type of crops and soils. The exchangeable Al 3+ values of the surface horizons of cultivated lands (Pedons 1 and 4) are within this range to influence crop growth adversely.…”

Section: Soil Chemical Properties Soil Ph and Exchangeable Aciditymentioning

confidence: 99%

Characterization and classification of soils of Yikalo Subwatershed in Lay Gayint District, Northwestern Highlands of Ethiopia

Fekadu¹,

Kibret²,

Bedadi³

et al. 2018

Eurasian Journal of Soil Science (Ejss)

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Soil resource information is vital for sound land use planning and sustainable fertility management. This study was carried out with the objective of characterizing and classifying soils of Yikalo Subwatershed at Lay Gayint district, Northwestern Ethiopia. Representative soil pedons were opened along topographic positions and described on genetic horizon basis in the field for their morphological characteristics and analyzed in the laboratory for selected physical and chemical soil properties. The soils were classified following the FAO (2014). The results revealed the presence of variations in the selected morphological properties within a pedon and along the topographic positions. Soils differed in reaction from 4.57 to 6.42. On the surface horizons of the soil pedons, available P content varied from 0.21 to 3.25 mg kg-1 , while exchangeable acidity ranged from 0.17 to 3.65 cmolc kg-1 soil. There was no consistent trend for cation exchange capacity (CEC) and PBS (percent base saturation) with soil depth and topographic positions. The soils in Yikalo Subwatershed were classified as Hyperdystric Cambisols (Humic), Haplic Alisols (Humic), Cambic Umbrisols (Colluvic), Haplic Luvisols (Epidystric), and Pellic Vertisols (Mesotrophic). Optimum rates of organic and inorganic amendments should be applied to reduce the level of soil acidity, and improve the fertility level of the soils for better crop production and productivity.

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Section: Soil Chemical Properties Soil Ph and Exchangeable Aciditymentioning

confidence: 99%

Characterization and classification of soils of Yikalo Subwatershed in Lay Gayint District, Northwestern Highlands of Ethiopia

Fekadu¹,

Kibret²,

Bedadi³

et al. 2018

Eurasian Journal of Soil Science (Ejss)

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“…Above and below these values (pH water 5.9-6.5), root development was markedly compromised and leaf aging was greater, therefore likely reducing long-term vegetative growth. A reduction in root biomass at lower soil pH values has been reported for many domesticated and wild plants, as root development can be compromised by increased aluminum availability in soils having a lower pH [23][24][25][26][27]. On the other hand, alkaline soil conditions can also reduce root biomass, since an increase in calcium activity within the soil solution decreases the ability of the plant to uptake other nutrients, such as phosphorus and manganese [28].…”

Section: Discussionmentioning

confidence: 99%

Effects of Soil pH and Fertilizers on Haskap (Lonicera caerulea L.) Vegetative Growth

et al. 2019

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Haskap (Lonicera caerulea L.) is a new northern latitude fruit crop that is increasing in popularity. This sudden enthusiasm for haskap increases the need for obtaining baseline knowledge related to establishing it as a crop, such as its optimal soil pH and fertilizer needs. In a greenhouse, one-year-old haskap plants (cultivar: Indigo Treat©) were grown in a local loamy sand. We assessed the impact of pH and fertilizer on haskap vegetative growth through an experiment involving four soil pH and five fertilization treatments of three N sources (ammonium, nitrate, and organic (chicken manure)). Leaf senescence as well as above-ground and root biomass were recorded after 19 weeks of vegetative growth. For cultivar Indigo Treat©, optimal vegetative growth was observed under slightly acidic soil conditions (pHCaCl2 5.5–6 or pHwater 5.9–6.5) without application of N. Phosphorus and K fertilizers did not influence vegetative growth. We here discuss the implications for establishing haskap orchards.

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“…As terrestrial ecosystems are chronically exposed to acid rain, plants may become malnourished or their productivity may be diminished (Abdulaha-Al Baquy et al 2017, Likens et al 1996. Indeed, Pinus massoniana had lower needle biomass and plants were shorter in severely-acid treated plots, as compared to untreated ambient plots.…”

Section: Discussionmentioning

confidence: 99%

Inoculation with Pisolithus tinctorius may ameliorate acid rain impacts on soil microbial communities associated with Pinus massoniana seedlings

et al. 2019

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Human activities accelerate acidification, particularly as acid rain, which may have lasting impacts on soil abiotic and biotic parameters. However, the effects of acidification on aboveground vegetation, belowground communities, and carbon cycling remains unresolved. We examined the effects of long-term acidic treatments and Pisolithus inoculation on plants, soils, and microbial communities in pine plantations and found that exposure to severely-acidic treatments diminished plant performance, altered microbial communities, and decreased organic matter, nitrate, and available phosphorus. Although we did not detect any benefits of Pisolithus inoculation for Pinus seedlings impacted by severely-acidic treatments, when these severe treatments were inoculated with Pisolithus, both soil properties and microbial community composition shifted. We posit that inoculation with Pisolithus may alleviate stressful environmental conditions, and change the structure of mycorrhizal fungal communities. Although acidification may alter biogeochemical cycles and constrain aboveground and belowground communities, Pisolithus inoculation may provide benefits to some components of forested ecosystems.

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Determination of critical pH and Al concentration of acidic Ultisols for wheat and canola crops

Abstract: Abstract. Soil acidity has become a principal constraint in dry land crop production systems of acidic Ultisols in tropical and subtropical regions of southern China, where winter wheat and canola are cultivated as important rotational crops.

Cited by 64 publications

References 57 publications

Characterization and classification of soils of Yikalo Subwatershed in Lay Gayint District, Northwestern Highlands of Ethiopia

Characterization and classification of soils of Yikalo Subwatershed in Lay Gayint District, Northwestern Highlands of Ethiopia

Effects of Soil pH and Fertilizers on Haskap (Lonicera caerulea L.) Vegetative Growth

Inoculation with Pisolithus tinctorius may ameliorate acid rain impacts on soil microbial communities associated with Pinus massoniana seedlings

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