Correlation of Corn and Soybean Grain Yield with Topography and Soil Properties

Kravchenko, Alexandra; Bullock, D. G.

doi:10.1007/s100870050010

Cited by 153 publications

(234 citation statements)

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“…This is due to the fact that the relationship of slope position to soil properties is, to a great degree, controlled by erosion processes in that it alters the distribution of soil particles and water redistribution over the field. Kravchenko and Bullock (2000) found that in more than half of their study sites, slope was negatively correlated to CEC, organic matter, available P, and exchangeable K.…”

Section: Available Phosphorousmentioning

confidence: 99%

Characterization and Classification of Soils along the Toposequence of Kindo Koye Watershed in Southern Ethiopia

Mulugeta¹,

Sheleme²

2011

East African Journal of Sciences

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Abstract:In developing countries, where research funds are limited, the availability of pedogenic information and proper classification of soils will be of great importance. The soils of Kindo Koye watershed were fully characterized along east and west facing toposequences that formed a catena and classified according to the Soil Taxonomy and the WRB Legend to assess the impact of topography on soil development and characteristics. The morphological and physiochemical properties of seven pedons located at the upper, middle and lower slopes of the two toposequences and at the depression were studied. The study revealed the existence of three different soil orders along the toposequences in an area that was previously mapped as Eutric Nitosols. The pedons on the upper and middle slopes of both east and west-facing toposequences and the pedon on the east-facing lower slope were categorized under Ultisols, whereas the pedons on the foot slope west-facing and the depression were categorized under Inceptisols and Entisols, respectively. The Ultisols, Inceptisols and Entisols were further categorized as Acrisols, Cambisols and Fluvisols major groups according to the WRB Legend, respectively. This detail survey and classification of soils shows that topography has a great influence on soil development and characteristics.

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Section: Available Phosphorousmentioning

confidence: 99%

Characterization and Classification of Soils along the Toposequence of Kindo Koye Watershed in Southern Ethiopia

Mulugeta¹,

Sheleme²

2011

East African Journal of Sciences

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“…According to the classification proposed by Warrick & Nielsen (1980), values above 30 % are considered high. Kravchenko & Bullock (2000) pointed out that elevated crop yield variations could be a reflection of the influence of interactions between different factors, including the soil-related, which justifies the implementation of some type of localized treatment to reduce the differences.…”

Section: Crop Yieldmentioning

confidence: 99%

Spatial and temporal variability of crop yield and some Rhodic Hapludox properties under no-tillage

Filho¹,

Vieira

Chiba

et al. 2010

Rev. Bras. Ciênc. Solo

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SUMMARYSoil properties are closely related with crop production and spite of the measures implemented, spatial variation has been repeatedly observed and described. Identifying and describing spatial variations of soil properties and their effects on crop yield can be a powerful decision-making tool in specific land management systems. The objective of this research was to characterize the spatial and temporal variations in crop yield and chemical and physical properties of a Rhodic Hapludox soil under no-tillage. The studied area of 3.42 ha had been cultivated since 1985 under no-tillage crop rotation in summer and winter. Yield and soil property were sampled in a regular 10 x 10 m grid, with 302 sample points. Yields of several crops were analyzed (soybean, maize, triticale, hyacinth bean and castor bean) as well as soil chemical (pH, Soil Organic Matter (SOM), P, Ca 2+ , Mg 2+ , H + Al, B, Fe, Mn, Zn, CEC, sum of bases (SB), and base saturation (V %)) and soil physical properties (saturated hydraulic conductivity, texture, density, total porosity, and mechanical penetration resistance). Data were analyzed using geostatistical analysis procedures and maps based on interpolation by kriging. Great variation in crop yields was observed in the years evaluated. The yield values in the Northern region of the study area were high in some years. Crop yields and some physical and soil chemical properties were spatially correlated.Index terms: crop yield maps, geostatistics, kriging.(1) Part of the master dissertation of the primary author developed at the IAC Tropical and Sub-tropical Agriculture Graduate Program, Campinas (SP (pH, MOS, P, Ca, Mg, H + Al, B, Fe, Mn, Zn, CTC, SB e V %)

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“…Estudos têm demonstrado que o relevo tem sido um atributo que define a distribuição de atributos químicos do solo ao longo da paisagem e tem apresentado altas correlações com a produtividade de culturas e os atributos do solo (KRAVCHENKO & BULLOCK, 2000;SOUZA et al, 2003;SOUZA et al, 2004;MONTEZANO et al, 2008).…”

Section: Ciência Rural V40 N4 Abr 2010unclassified

Análise dos atributos do solo e da produtividade da cultura de cana-de-açúcar com o uso da geoestatística e árvore de decisão

et al. 2010

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Correlation of Corn and Soybean Grain Yield with Topography and Soil Properties

Cited by 153 publications

References 0 publications

Characterization and Classification of Soils along the Toposequence of Kindo Koye Watershed in Southern Ethiopia

Characterization and Classification of Soils along the Toposequence of Kindo Koye Watershed in Southern Ethiopia

Spatial and temporal variability of crop yield and some Rhodic Hapludox properties under no-tillage

Análise dos atributos do solo e da produtividade da cultura de cana-de-açúcar com o uso da geoestatística e árvore de decisão

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