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Soil Science 1

Prof. Ashraf Mostafa

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Across
4.the conversion of an element from an organic form to an inorganic
6.the association of specific fungi with roots in higher plants
7.saturated or nearly saturated with water
8.the process whereby the ESP of a soil is increased
10.any material added to a soil to supply plant nutrients
12.the micro-relief of small basins and knolls
14.all physical and chemical changes produced in rocks
16.the volume of pores in soil divided by the bulk volume
17.a solid rock underlies the soil
19.a layer of soil parallel to the surface and has special feature
Down
1.a mixture of organic residues and soil
2.an aluminum silicate mineral with a 2:1 structure
3.the branch of soil science concerned with microorganisms
4.a plant nutrient found in relatively small amounts in plants
5.soil transported or deposited by running water
9.a group of primary soil paricles
11.mineral soil without diagnostic horizons
13.the wearing away of soil from land surface
15.a soil moisture regime common to Mediterranean climates
18.a soil separate less than 0.002 mm in diameter

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