Interpreting Soil Test Results: What do all the Numbers mean? ‐ by P. Hazelton &amp; B.Murphy

Webster, R.

doi:10.1111/j.1365-2389.2007.00943_8.x

Cited by 18 publications

(11 citation statements)

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“…The CEC of the soil was 33.33 meq kg -1 , which is considered as high. According to Hazelton and Murphy (2007) CEC rating, 25-40 is high. According to Olsen et al, (1954) P rating (mgkg -1 ), P content of < 3 is very low, 4 to 7 is low, 8 to 11 is medium, and > 11 is high.…”

Section: Description Of the Study Areamentioning

confidence: 99%

Tef Yield Response to NPS Fertilizer and Methods of Sowing in East Shewa, Ethiopia

Tesfahun

2018

J Agric Sciences

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Section: Description Of the Study Areamentioning

confidence: 99%

Tef Yield Response to NPS Fertilizer and Methods of Sowing in East Shewa, Ethiopia

Tesfahun

2018

J Agric Sciences

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“…The cation exchange capacity (CEC) of the soil was expressed in meq/100 g soil and was obtained using the methodology by Cottenie (1980). The exchangeable sodium percentage (ESP) and the sodium adsorption ratio (SAR) was established according to Webster (SEMARNAT 2002, Webster 2007. For the characterization of the biosolid, the total N (TN) was determined using the micro Kjeldahl method (Bremner 1996) and expressed in mg N/kg dry soil or dry biosolid.…”

Section: Soil and Biosolid Characterizationmentioning

confidence: 99%

“…The soil was classified as clayey. In relation to the pH and EC indicators, the soil was classified as moderately alkaline and non-saline, respectively (SEMARNAT 2002, Webster 2007. The soil presented an ESP of 11.1%, classifying it as slightly sodic (So andAylmore 1993, Webster 2007).…”

Section: Soil and Biosolids Characterizationmentioning

confidence: 99%

“…Based on the indicators associated with mineralizable C and N sources, the soil was described as having a moderate, low, and very low content of OM, TOC and TN, respectively. The macronutrients presented concentrations within a range that was considered as moderate (P), high (K and Mg) and very high (Ca and Na) (SEMARNAT 2002, Webster 2007). However, the micronutrients presented concentrations considered to be in the range of very low (Fe, Cu and Zn) and low (Mn) (Table II) (SEMARNAT 2002, Webster 2007.…”

Section: Soil and Biosolids Characterizationmentioning

confidence: 99%

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Comparison of methodolgies of soil quality indices (SQI) for sodic soil

Bedolla-Rivera

Negrete-Rodríguez²,

Gámez-Vázquez³

et al. 2022

Rev. Int. Contam. Ambie.

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Soil degradation and the use of urban biosolid wastes to soil restoration have an economic, social-environmental and health impact. Therefore, there is interest worldwide in the use and comparison of methodologies to establish soil quality indexes (SQIs) based on physical, chemical, and biological indicators of soils. Considering that more than 60% of the territory in the Bajío region of Mexico in the State of Guanajuato is affected by some type of soil degradation, three methodologies for the establishment of SQIs—additive, weighted and unified weighted indexes—were compared in this study to evaluate the short-term effects—30 days—of the addition of biosolids as soil improvers. The methodologies were applied in experiments on carbon (C) and nitrogen (N) mineralization dynamics in a sodic agricultural soil. The ammonium indicator (N-NH4+) was established as the one that is most related to the quality of the soil. The additive and unified weighted indexes differentiated the level of soil quality with respect to time and treatment. The developed SQIs can be used for short-term assessment of the quality of agricultural soils under amendment addition treatments with biosolids or similar organic products.

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“…Deep and well-drained soil shows a root penetration until below 150 cm for most crops, however, root penetration might be stopped at shallower depth because of physical root restricting or chemical properties of soil (Mulugeta, 2010;Suresh, 2004). Generally, soil type with soil depth with 70-150 cm, well-drained, with a pH between 5.5 and 7.5, and with a texture of loam, clay, silty clay were classified as highly suitable for selected cereal crops (Figure 2(g)) (Hazelton, 2007). Figure 3(h), proximity to market analysis was carried out by using Euclidean distance proximity analysis which resulted in 0-4 km (22.93%), 4-8 km (38.45%) 8-12 km (33.07%), and 12-15 km (5.55%) were classified as highly suitable, moderately suitable, marginally suitable and not suitable due to the distance from the cropland, respectively (Widiatmaka, 2016).…”

Section: Suitability Of Socio-environmental Factorsmentioning

confidence: 99%

GIS and remote sensing-based physical land suitability analysis for major cereal crops in Dabo Hana district, South-West Ethiopia

Debesa

Gebre

Melese

et al. 2020

Cogent Food & Agriculture

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Land suitability analysis is a prerequisite for sustainable agricultural production. This study was aimed at evaluating the current physical land suitability for major cereal crops: teff, wheat, barley and maize in the Dabo-Hana district, Bunno Bedelle Zone, Southwest Ethiopia. A GIS and RS technique with a multicriteria evaluation approach was applied for evaluating the physical land suitability for the major crops. Various physical land attributes, namely temperature, rainfall, altitude, slope, soil (soil depth, PH, texture, and drainage), land use land cover, accessibility to market and proximity to road have been used as input parameters. Physical land suitability maps were generated for the major cereal crops. The optimum vector overlay analysis results revealed that from the total area, 15,298 ha (20.34%) and 12,494 ha (16.8%) is highly suitable and moderately suitable for all teff, wheat, barley, and maize crop production, respectively. The remaining area has a mixed suitability status (suitable for some crops and unsuitable for others) for all the analyzed crops. This study demonstrated that based on physical land suitability analysis the study area has huge potential for cereal crop production. Topographic factor (altitude) and climatic factors (temperature and rainfall) are the dominant factors that influence the suitability of agricultural land for the major crops in the ABOUT THE AUTHORS Gemechu Dabesa is a lecturer at Jimma University. He has M.Sc degree in GIS and RS from Jimma University.Sintayehu Legesse Gebre is an assistant professor in Hydrology and water resources engineering at Jimma University. He has a multidisciplinary academic and professional background. Currently, he is a Ph.D. fellow at KU Leuven University.Ashenif Meles and Sintayehu Teka are working at the department geography, Jimma University.Alemayehu Regassa (Ph.D.) is an associate professor at Jimma University. He is a senior researcher in the field of soil science. PUBLIC INTEREST STATEMENTAgricultural land suitability analysis is important for effective and efficient utilization of land resources. This paper presents the physical land evaluation for selected cereal crops growing in Dabo Hana district, southwest Ethiopia. GIS and RS application techniques were applied to use the Multi-criteria decision support system. Different physical agricultural land attributes, namely temperature, rainfall, altitude, slope, soil (soil depth, PH, texture, and drainage), land use land cover, accessibility to market, and proximity to road have been used as input parameters. The result shows that about 37% of the study area is suitable for all the selected major cereal crops. Whereas the remaining area has mixed suitability like some areas are only suitable for either one or two or three types of crops. The finding of this study is useful for decision-makers to ensure optimized agricultural land-use planning to maximize cereal crop production to enhance food security in the community.

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Interpreting Soil Test Results: What do all the Numbers mean? ‐ by P. Hazelton & B.Murphy

Cited by 18 publications

References 0 publications

Tef Yield Response to NPS Fertilizer and Methods of Sowing in East Shewa, Ethiopia

Tef Yield Response to NPS Fertilizer and Methods of Sowing in East Shewa, Ethiopia

Comparison of methodolgies of soil quality indices (SQI) for sodic soil

GIS and remote sensing-based physical land suitability analysis for major cereal crops in Dabo Hana district, South-West Ethiopia

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