Gendy, O. S( 2018). Micronutrients As Correlated To Some Soil Variables Of Wadi
El- Laqita Soils Qina Governorate, Egypt
J. Biol. Chem Environ. Sci., 2018 Vol. 13( 3 ): 155-175
Abstract: The current study was carried out to evaluate the relation between total and available of some micronutrients (Fe, Mn, Zn and Cu) with some soil variables i.e. pH, ECe values, Organic matter %, Soil texture, CaCO3 % and soil fractions (sand, silt and clay %). Forty three soil samples were collected from sixteen soil profiles which represented five physiographic units of Wadi El- Laqita soils, Qina governorate. Total Fe contents of the soil profiles for the studied units were ranged from 37200 to 52100; 34800 to 40600; 24900 to 38920; 31560 to 71120 and from 55800 to 59200 mg/kg. While, total Mn contents ranged from 340 to 430; 280 to 385; 170 to 350; 260 to 630 and between 390 to 420 mg/kg. Whereas, total Zn contents ranged between 34 to 75; 29 to 41; 30 to 62; 30 to 85 and between 59 to 69 mg/kg. But, total Cu contents ranged between 27 to 58; 47 to 75; 29 to 61; 30 to 79 and between 34 to 49 mg/kg for Wadi bottom, Fans and outwash plain, Young terraces, Old terraces and Miscellaneous land, respectively. Available Fe ranged from 6.5 to 10.8, 5.7 to 9.2, 4.8 to 8.5, 5.9 to 14.8 and from 13.4 to 16.2 mg/kg. Whereas, available Mn values ranged between 2.8 to 4.4, 2.1 to 7.2, 1.6 to 3.8, 3.2 to 7.9 and between 1.9 to 2.4 mg/kg. But, available Zn ranged from 0.5 to 2.1; 0.3 to 0.7; 0.3 to 0.9; 0.3to 2.5 and from 1.0 to 2.1 mg/kg. While, available Cu ranged from 0.4 to 1.5; 0.3 to 0.7; 0.4 to 1.2; 0.3 to 2. and from 0.7 to 1.6 mg/kg for Wadi bottom, Fans and outwash plain, Young terraces, Old terraces and Miscellaneous land, respectively.
The relationships between total and available micronutrients with some soil variables observed that pH values, Organic matter %, CaCO3 %, and soil fractions (sand, silt and clay %). play an important role in the concentration of micronutrients in the studied soils The narrow variations of weighted mean (W) between the most of the soil profiles may be attributed to pedogenic factors rather than geogenic ones, or may be attributed to the same nature of parent material from which the soils are derived, the trend (T) indicate that most of soil profiles are highly symmetric with respect (Fe, Mn, Zn and Cu),whereas the specific range (R) show homogeneity of some soil profiles with respect to some micronutrients and heterogeneity with others of soil profiles.
Keywords: (soil properties, Qena, total available micronutrients, Wadi El- Laqita)
