ESM234
1 / 59
The downward movement of nutrient from topsoil to subsoil is known as
2 / 59
The concentration of hydrogen ion in the soil is called
3 / 59
On the basis of ped, the following are soil structure types except
4 / 59
A kind of wind deposited soil is
5 / 59
The ideal value of pH for an agricultural soil in tropical regions is about
6 / 59
The detachment and removal of the topsoil either partially or completely by water, wind and ice especially by water and wind is known as
7 / 59
Degradation of soil can be reduced by
8 / 59
The syst em of farming which involves tilting at right angles to the slope of the land is called
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It is sticky when wet and hard when dry this is a characteristic of which type of soil
10 / 59
Absence of phosphorus in the soil results to the following symptoms on grown plant except
11 / 59
Horizon differentiation of soil formation include the following except
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The soil acidity is controlled by using
13 / 59
The physical factors of soil erosion are made up of the following except
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When soil nutrient cations are released into the soil solution and their places on the clay particle are taken up by hydrogen ion is called
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The following are forms of nitrogen except
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The following are soil micro nutrients except
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Which of the following nutrient is responsible for the content of protein and amino acid in plant
18 / 59
One of the following is not the agent of soil erosion
19 / 59
Iron copper and manganese are needed in the
20 / 59
Tropical soils with distinctive horizon of iron and aluminnum oxides is called
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The process by which organic matter is decomposed and new organic complexes are synthesized to form humus or the organic component of the soil is called.
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Classification of soils that based on the relationship between soils and the climaticcharacteristics is called
23 / 59
The best type of soil for planting grains
24 / 59
A soil is regarded as pedalfer
25 / 59
Which of the following is not an economic benefit of soil to mankind?
26 / 59
The horizon of the soil profile where unweathered rock materials can be found is
27 / 59
The first soil category under U S soil taxonomy is
28 / 59
Soil formation is influenced by the following factors except
29 / 59
The following are forms of soil erosion except
30 / 59
The following micro nutrients becomes more available in the soil with increasing acidity except
31 / 59
The texture of the soil depends on the constituent of
32 / 59
The following are exchangeable cations in the soil except
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The following are the causes of soil acidity except
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The system of soil conservation that involves the planting in row or operating farm equipment across the slope is called
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Soil classification system in which the structure and development processes of soil profile are considered is known as
36 / 59
Which type of soil is coarse gritty loose with large pore spaces well aerated and has high capillarity
37 / 59
The impact of traditionally adopted shifting cultivation is
38 / 59
The predominant factor of soil formation is
39 / 59
The complex processes of soil formation are the following except
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Vertical or lateral translocation of mineral particles colloids and soluble salts within the soil is called
41 / 59
The most available macro element in the soil is
42 / 59
The world types of soil are the following except
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The following are biological processes of soil formation except
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Ability of soil to sustain plants is called
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The arrangement of soil in different layers right from the top to the base where the parent rock or parent material is found is called
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The system of grouping soils for the production of particular crop is called
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One of the following is not a factor affecting soil formation
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Soil chemical properties are made up of the following except
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One of the following complex process of soil formation is predominant in low-rainfall area especially in the continental interior
50 / 59
The greatest proportion of organic matter in the soil are
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One of the following is not type of azonal soil
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The most conspicuous property of soil that has been used widely to describe and classify it is
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The process of protecting the soil against the erosion or deterioration is called
54 / 59
The major cause for land degradation in Nigeria is
55 / 59
When one looks at a soil profile the first characteristic to be noticed is soil
56 / 59
Those properties which are required by plants in large amounts is referred to as
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The measure of the extent to which the exchange complex is saturated with basic cations is known as
58 / 59
One of the following is not among the passive soil forming factor
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Porosity as a measure of pore space of the soil is affected by the following except
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