Which one among the following statements with reference to the black cotton soils of India is NOT correct?
and hence can support a wide
variety of crops and vegetables
Understanding Black Cotton Soils of India
Black cotton soils, also known as Regur soils, are a significant soil type found predominantly in the Deccan Plateau and other parts of India. They are famous for their suitability for growing cotton, hence the name 'black cotton soil'. Let's analyze each statement provided regarding these soils to identify the incorrect one.
Analysis of Statements about Black Cotton Soils
-
Statement 1: "The black cotton soils are also called 'Regur'".
This statement is correct. The term 'Regur' is widely used as a synonym for black cotton soil in India. It originates from the Telugu word 'rēgadi', which refers to ploughed land.
-
Statement 2: "They are highly moisture retentive".
This statement is correct. Black cotton soils are known for their exceptional ability to retain moisture. This property is attributed to their fine texture and high clay content, which allows them to absorb and hold large amounts of water, benefiting crops during dry periods.
-
Statement 3: "They are rich in lime".
This statement is correct. Black cotton soils are generally fertile and rich in essential nutrients like lime, potassium, magnesium, and iron. However, they tend to be deficient in phosphorus, nitrogen, and organic matter.
-
Statement 4: "These soils have less clay factor and hence can support a wide variety of crops and vegetables".
This statement is NOT correct. Black cotton soils are characterized by a high clay factor, often making up a significant percentage of their composition (sometimes over 50%). This high clay content causes the soil to swell considerably when wet and develop deep, wide cracks when it dries out. While these soils are fertile and support specific crops like cotton, sugarcane, and certain pulses and millets, the premise that they have a 'less clay factor' is factually wrong. The high clay content can also limit the types of crops that can be grown easily without proper management.
Identifying the Incorrect Statement
Based on the analysis, the statement that is factually incorrect regarding the characteristics of black cotton soils of India is the one claiming they have a 'less clay factor'. The defining characteristic of these soils is actually their high clay content.
Similar Questions
- Quartzite is metamorphosed from which one of the following rocks?
Important Questions from Rocks and Soils
Which of the following statements with reference to Salt Weathering is/are correct? 1. Salt crystallisation is the most effective of all the salt weathering processes. 2. Salt crystal growth is more effective over sedimentary rocks as compared to igneous rocks.
Which of the following statements with reference to Salt Weathering is/are correct?
1. Salt crystallisation is the most effective of all the salt weathering processes.
2. Salt crystal growth is more effective over sedimentary rocks as compared to igneous rocks.- Which one among the following statements regarding igneous rock is correct ?
- Consider the following statements regarding metamorphic rocks :
1. Ortho-metamorphic rocks are formed from igneous rocks.
2. Intense heat of the intruding magmas results in metamorphism of the surrounding rocks, a process known as dynamic metamorphism.
Which of the statements given above is/are correct ? - Which of the following statements about the Black Soils of India is/are correct ?
1. Black Soils cover most of the Deccan Plateau.
2. Also known as 'Regur', they are generally clayey, deep and impermeable.
3. Since they are impermeable, rainfed crops do not grow well in Black Soils.
Select the answer using the codes given below :
