IGNIFICANCE OF INHERITED SOIL PEDOGENIC ASPECTS AS RELATED TO SOME NUTRIENTS STATUS IN BOTH SOILS AND GROWN PLANTS AT EL FAYOUM AREA, EGYPT | ||||
| Fayoum Journal of Agricultural Research and Development | ||||
| Article 4, Volume 24, Issue 2, July 2010, Page 38-63 PDF (822.23 K) | ||||
| Document Type: Research articles. | ||||
| DOI: 10.21608/fjard.2010.195680 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Abdel Nasser A.A. Abdel Hafeez1; Mohsen A. M. El Bassiouny2; Hamed A. Awadalla2 | ||||
| 1Soils and Water Department, Fac. of Agric., Fayoum University, Egypt. | ||||
| 2Soils, Water and Environment Res. Inst., Agric. Res. Center, Giza, Egypt | ||||
| Abstract | ||||
| In the current study, a special attention was focused to identify the inherited soil pedogenic aspects in a selected area of El-Fayoum district, Egypt, which were achieved through the different cyclic-sequences of soil formation by using the obtained data from Enhanced Images of Landsat Thematic Mapper 7 of the bands 2, 3 and 4 (ETM7, 2005), which are processed within the geographic software. Such step represents a base for assessing the soil potentiality for essential plant nutrients, and in turn the sustainable agriculture on the long-term. The second attention was focused for setting up database of wheat yield and its components as an indicator plant, through studying the growth parameters/plant at vegetative stage (i.e., height, dry weight, tiller number, leaf area, chlorophyll a & b and nutrients uptake), biological yield and grain quality at harvest stage (i.e., spike characters, weight of 1000 grain, grain or straw yields/fed as well as grain content of protein, carbohydrates, sugars and amino acids) as affected by the studied soil properties (i.e., texture grade, bulk density, available water, CaCO3, organic matter, ESP, pH and ECe) under different cyclic-sequences of the deposited soil constituents. Such possible relationships are usually used as a guide to explain and correct the problems facing the current and future agricultural utilization projects, particularly fertilization policy. Consequently, proposing the best landuse whether be under demand for agricultural purposes or be planned for later on. The obtained results showed that the identified soil characteristics of the studied area are markedly varied and depending upon the soil genesis status. Consequently, the essential plant nutrient contents of the soil, either in total or available forms, as related to soil genesis and main characteristics were exhibited widely variations. Hence, building a geographic database for the main soil characteristics was established by using ILWIS software within CIS format. On the other hand, the statistical analyses, i.e., simple correlation coefficients, multiple regression equations and stepwise, were distinguished by aiding the program outlined by SPSS (2003) software for assessing the different relationships between the studied soil variables and plant nutrients whether as total and available contents. Moreover, the contribution percentages of either soil constituents with the studied total nutrient contents or the studied soil variables with the available nutrient fractions were defined. The positive or negative reflections of the aforementioned soil relationships on the plant parameters of grown wheat (Sakha 93 cv.) at both vegetative growth and harvest stages during an agricultural growing winter season of 2009/2010 for selected nine soil sites were also taken into consideration in this study. The results obtained indicate that such soil relationships are exerted a great beneficial effect on the studied plant parameters at both growth and harvest stages of wheat crop in soil characterized by best soil variables, that having a pronounced content of nutrient-bearing minerals as well as factors that are enhancing more released nutrients and their solubilization from both sources of native or added as well the favourable biological conditions that are keeping them in available forms for extended period and their mobility for uptake by plant roots. The reverse was true for soils have adverse soil variables, particularly those are poorer in nutrient-bearing minerals and exhibited adverseable conditions that are controlling released nutrients and their availability for uptake by plant roots. | ||||
| Keywords | ||||
| El-Fayoum soils; Nutrients status; thematic maps; wheat crop; inherited soil pedogenic aspects | ||||
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