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): Effect of oil refinery sludge on plant growth and soil properties. — Res. J. Environ. Sci. 5 : 187–193. Al-Qahtani M. R. A. Effect of oil refinery sludge on plant growth and soil

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Adhami, E., A. Salmanpour, A. Omidi, N. Khosravi, R. Ghasemi-Fasaei, M. Maftoun 2008: Nickel adsorption characteristics of selected soils as related to some soil properties. - Soil Sediment Contamination, 17, pp

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The aim of the present study was to establish whether the 1 M NH 4 NO 3 extraction is a suitable method for determining the background concentrations of mobile element fractions in soils and for describing the relations among mobile element fractions and soil properties. The 1 M NH 4 NO 3 extraction resulted As, Cr and Pb concentrations below the detection limit in 90% of the investigated soils. This shows that the mobile element content determined simply in 1 M NH 4 NO 3 solution is probably inadequate for the determination of the mobile background concentrations of these elements. Therefore, in the risk assessment of soil contamination other soil properties and element fractions – like “total” (cc. HNO 3 +H 2 O 2 soluble) – should also be taken into consideration. The mobile Al concentration increased exponentially below pH 4. No correlation was found among 1 M NH 4 NO 3 soluble mobile As, Cr, Cu and Pb element concentrations and any investigated soil property. Mobile Co, Mn, Al, Ni and Zn concentrations were determined mainly by soil pH. Soil colloid content correlated particularly with mobile Sr and B contents.

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Agrokémia és Talajtan
Authors: G. Gelybó, E. Tóth, C. Farkas, Á. Horel, I. Kása, and Z. Bakacsi

. 1990 . The influence of a changing climate in soil properties . In: Trans. 14th ISSS Congress, Kyoto, 1990 , 5 . 283 – 287 . Buytaert , W

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. (1983): Összefüggés-vizsgálatok néhány talajtulajdonság, a m trágyzás, valamint a növénytakaró jellemz i között (Correlation studies between soil properties, mineral fertilisation and vegetation characteristics) Agrokémia és Talajtan , 32, 57

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Agrokémia és Talajtan
Authors: Miklós Gulyás, Márta Fuchs, Gabriella Rétháti, Annamária Holes, Zsolt Varga, István Kocsis, and György Füleky

Soil Properties and Plant Growth. MSc Thesis in Crop and Soil Environmental Sciences. Virginia Polytechnic Institute and State University. USA. Revell K. T

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et al., 2018). In Europe, C REAMER et al. (2016) noted that soil respiration rate was greatly influenced by soil properties, such as pH, SOM, total nitrogen (TN), and cation exchange capacity (CEC). Temperature and water content were also found to be

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Abstract  

Labile pool (E-value) of Mn and extractable soil Mn content using six multinutrient extractants were estimated in fifty surface (0–15 cm) soil samples. Labile pool of Mn was poorly correlated to the general soil properties and modified Olsen’s-; 0.01 M CaCl2- and 1 M MgCl2-extractable Mn contents but it was positively and significantly correlated to diethylene triamine pentaacetic acid (DTPA), pH 7.3; ammonium bicarbonate + DTPA (pH 7.6); and Mehlich-3-extractable soil Mn contents. The multinutrient extractants involving only simple salt solutions were not useful to assess the availability of Mn in soils.

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Abstract  

In this work, soil-soil solution distribution coefficients (K d) of Sr and Cs were obtained for 112 Japanese agricultural soil samples (50 paddy soil and 62 upland soil samples) using batch sorption test. The relationships between Sr-or Cs-K d values and soil properties were discussed. Furthermore, the amount of Cs fixed in soil was estimated for 22 selected soil samples using a sequential extraction method. Then, cross effects of some soil properties for Cs fixation were evaluated.

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Soil management practices that utilize organic matter have great potential to increase productivity in sub-Saharan Africa. Field studies were carried out between September 1995 and August 1998 to determine the effects of three leguminous crop species: velvet bean ( Mucuna pruriens var. utilis ), groundnut ( Arachis hypogaea L.) and cowpea ( Vigna unguiculata (L.) Walp), and inorganic fertilizer on the soil properties and succeeding maize grain yield when grown in rotation on a sandy soil classified as Haplic Lixisol in the forest-savannah transition zone of Ghana. The legumes were established in the minor seasons and maize in all the plots in the major cropping seasons. A 2 × 3 factorial design laid out in a randomized complete block was used. The main plots consisted of three leguminous crop residues and the sub-plots of two fertilizer levels (0 and 45 kg N ha −1 , 19 kg P ha −1 , 19 kg K ha −1 ). The control consisted of maize following maize with the recommended fertilizer rate (90 kg N ha −1 , 37 kg P ha −1 , 37 kg K ha −1 ). On average the Mucuna plots added 4.0 t ha −1 of crop residue to the soil in a season and cowpea 1.0 t ha −1 . The preceding crops had little effect on the soil properties. Leaf area index, total dry matter and maize grain yields were significantly affected by fertilizer. The best maize grain yield (6787 kg ha −1 ) was recorded in the first year on Mucuna plots with half the recommended rate of fertilizer. The cropping sequence with Mucuna residue was the most efficient. The gap in maize grain yield between the fertilized and unfertilized treatments widened each successive year. The interaction between organic matter and fertilizer may have been limited due to the surface application of the organic residue.

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