Table of Contents
What is the black soil?
Black soils are mineral soils which have a black surface horizon, enriched with organic carbon that is at least 25 cm deep. Two categories of black soils (1st and 2nd categories) are recognized. CEC in the black surface horizons ≥25 cmol/kg; and. A base saturation in the black surface horizons ≥50%.
What is black soil Short answer?
Answer: Black soil is formed due to the solidification of lava spread over large areas during volcanic activity in the Deccan Plateau, thousands of years ago. This soils are also called Regur Soils. The black soil is very retentive of moisture.
What is black soil class 10th?
Black soil is a type of soil that is clayey in nature and is rich in soil nutrients like calcium, carbonate, magnesium, potash and lime. Apart from having these nutrients, the soil can accept freely insecticides, pesticides, and other natural manure that are useful for cultivation.
What is black soil good for?
Black soil is ideal for growing crops that are cotton, sugarcane, tobacco, wheat, millets, and oilseeds. Black soil is to be the best variety of soil for the cultivation of cotton. Besides cotton, it is also suitable for producing cereals, oilseeds, citrus fruits and vegetables, tobacco and sugarcane.
Is black soil fertile?
Deep black soil is productive due to high proportion of clay and humus. The organic matter present in the soil is contributed by the death and decay of living organisms. These are the richest in nutrients and therefore these soils are the most fertile.
Is another name of black soil?
Black soil is also known as black cotton soil or the regur soil.
What is the example of black soil?
Black soil may refer to: Chernozem, fertile black soils found in eastern Europe, Russia, India and the Canadian prairies. Muck (soil), a soil made up primarily of humus from drained swampland. Vertisol, dark cracking soils with a high clay content found between 50° N and 45° S of the equator.
Where is black soil found?
Black soils are derivatives of trap lava and are spread mostly across interior Gujarat, Maharashtra, Karnataka, and Madhya Pradesh on the Deccan lava plateau and the Malwa Plateau, where there is both moderate rainfall and underlying basaltic rock.
What is black soil made up of?
Black Soil is formed as a result of denudation of lava-flow rocks. They contain large quantities of lime, potash, aluminium, magnesium. They are deficient in phosphorus, nitrogen and organic matter. Black Soil is highly retentive of moisture, and become sticky when wet.
What are the five characteristics of black soil?
What are the characteristics of black soil? Clayey texture and are highly fertile. Rich in calcium carbonate, magnesium, potash, and lime but poor in nitrogen and phosphorous. Highly retentive of moisture, extremely compact and tenacious when wet. Contractible and develops deep wide cracks on drying.
What are three important features of black soil?
The following are five important characteristics of Black soil: It is fine textured and clayey in nature. It has high amounts of lime, iron, magnesium and generally low quantities of phosphorus, nitrogen and organic matter. It is black in colour since it is formed from weathered lava rocks.
Why is black soil black in Colour?
Complete answer: Black soil is black or dark brown. It is due to the presence of organic matter and clay content along with chemicals and metals like iron and potassium in the soil which make it fertile. Black soil is also called Regur soil and is important because of its relevance to food security and climate change.
Is black soil good for gardening?
Black soil is to be the best soil type for cotton cultivation. It is also suitable for the production of cereals, oilseeds, citrus fruits and vegetables, tobacco and sugar cane, in addition to cotton. The retentiveness to moisture makes them ideal for dry farming.
Which vegetables are grown in black soil?
Answer: Crops that grow in black soil are chillies, nuts, sugarcanes, maize, etc. Answer: Cotton, ceraels, oilseeds, citrus fruits (mango, saptova, guava and banana) and vegetables(peas, brinjals,tomato, green chilli), tobacco, sugarcane, gram.
Is black soil acidic or alkaline?
It is dark grey to black in colour and ranges from fertile to poor. The soil is rich in clay (montmorillonite) particles and has neutral to slightly alkaline reaction. The soil is rich in bases, lime and calcium. The pH of black soil is 7.2 – 8.5.
Why is black soil so fertile?
The black soils are also called as regur are fertile because they are highly moisture retentive, more clay content,which responds well to irrigation. The black soils are argillaceous contains many essential nutrients along with some content of humus as well.
Which crop is best for black soil?
Crops in Black Soils These soils are best suited for cotton crop. Other major crops grown on the black soils include wheat, jowar, linseed, virginia tobacco, castor, sunflower and millets. Rice and sugarcane are equally important where irrigation facilities are available.
How are black soils used?
Black soils constitute the food basket for many countries and for the world in general and are often recognized as inherently productive and fertile soils. More specifically, Chernozems are mainly used for growing wheat, barley and maize, alongside other food crops and vegetables.
What is black cotton soil?
Black cotton soils are inorganic clays of medium to high compressibility and form a major soil group in India. They are characterized by high shrinkage and swelling properties. The Black cotton soils is very hard when dry, but loses its strength completely when in wet condition.
Is black soil rich in nitrogen?
Chemically, the black soils are rich in lime, iron, magnesia and alumina. They also contain potash. But they lack in phosphorous, nitrogen and organic matter. The colour of the soil ranges from deep black to grey.
What is another name of black soil which crop is commonly grown on black soil?
The black soils are also called regur (from the Telugu word Reguda) and black cotton soils because cotton is the most important crop grown on these soils.
Which soil is black soil?
black soils known locally as regur. After those the alluvial soil is the third most-common type. Also significant are the desert soils of Rajasthan, the saline soils in Gujarat, southern Rajasthan, and some coastal areas, and the mountain soils of the Himalayas.
