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Modeling and correlation of soil cone index for bulk density, moisture content and penetration depth levels in a sandy loam soil [electronic resources].

By:

Ahmed, A. A. Sayed

Language: English Summary language: Arabic Description: p.259-273Other title:

نمذجة و ارتباط دليل اختراق التربة لمستويات كثافة ظاهرية ومحتوي رطوبة وعمق اختراق في تربة رملية طميية [Added title page title]

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Mansoura University Journal of soil sciences and agricultural engineering, 2015 v. 6 (2) [electronic resources].

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In: Mansoura University Journal of Soil Sciences and Agricultural Engineering 2015.v.6(2)Summary: Soil cone index (CI) is as criteria for representing soil strength. ltis a useful tool to evaluate the impact of tillageprocess and predicting draft force of tillage implements. The current research investigated modeling and correlation of Clfor bulk density, moisture content and penetration depth levels in a sandy loam soil. Cl datawere gathered and analysed. Regression models for correlatingCiwith independent parameters were developed and compared with the most promising models which selected from literature.Statistical analysis indicated that soil moisture content (MC), soil bulk density (80) and penetration depth(PO) had significant effect (P=0.01) on Cl. The all interactions among variables (80, MC and PO) had alsosignificant effect (P=0.01) on Cl. It is found that 80 and PO are linearly and directly proportional to Cl. However, MC is quadratic curve (second degree) and inversely proportional to Cl.

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Soil cone index (CI) is as criteria for representing soil strength. ltis a useful tool to evaluate the impact of tillageprocess and predicting draft force of tillage implements. The current research investigated modeling and correlation of Clfor bulk density, moisture content and penetration depth levels in a sandy loam soil. Cl datawere gathered and analysed. Regression models for correlatingCiwith independent parameters were developed and compared with the most promising models which selected from literature.Statistical analysis indicated that soil moisture content (MC), soil bulk density (80) and penetration depth(PO) had significant effect (P=0.01) on Cl. The all interactions among variables (80, MC and PO) had alsosignificant effect (P=0.01) on Cl. It is found that 80 and PO are linearly and directly proportional to Cl. However, MC is quadratic curve (second degree) and inversely proportional to Cl.

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