Table of Contents
black soils known locally as regur.
What is the other name of Black soil Class 10?
Black Soil is also known as ‘Regur Soil’ or ‘Black Cotton Soil’.
What is Black soil class 7?
Black soil is also known as regular soil. The soil is the top part of the earth’s surface, including disintegrated rock, humus, inorganic, and organic materials. Soil is classified based on size, colour and texture. Black soil is a type of soil that comes under the category of soil classification based on colour.
What is the another name for cotton soil?
Answer: Black soil is also known as cotton soil. The black soils found in the lava-covered areas are the most conspicuous.
What is the other name of Black soil when the National Forest Policy was formed India?
Black soil is called so because of its black colour. 2. It is also known as regur soil.
Which is 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.
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 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?
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. It has up to 50% clay content and therefore is highly retentive of water.
Which crop is suitable for black soil?
Crops in Black Soils These soils are best suited for cotton crop. Hence these soils are called as regur and black cotton soils. Other major crops grown on the black soils include wheat, jowar, linseed, virginia tobacco, castor, sunflower and millets.
Which soil is known as a cotton soil?
Black soils are poor in nitrogen, phosphorus and organic matter. The soils are generally rich in the montmorillonitic and beidellitic group of clay minerals. It is most suitable for the growth of cotton. It is also known or cotton soil as a reason.
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.
How is black soil formed?
Black soil is formed by the weathering or breaking of igneous rocks and also by the cooling or solidification of lava from the volcano eruption. Therefore, it is also called lava soil. This soil is formed from rocks of cretaceous lava and is formed from the volcano eruption.
Which three crop is mainly grown in black soil?
(i) The three states having black soil are Tamil Nadu, Andhra Pradesh and Maharashtra. The crops, which are mainly grown in it, are cotton, Tobacco and Sugarcane. (ii) Alluvial soil is found in the river deltas of the Eastern coast.
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.
Is black soil rich in humus?
Because of their high clay content, black soils develop wide cracks during the dry season, but their iron-rich granular structure makes them resistant to wind and water erosion. They are poor in humus yet highly moisture-retentive, thus responding well to irrigation.
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.
Why is black soil black?
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.
What is black soil good for?
Black soil is ideally suited for growing cotton, sugar cane, tobacco, wheat, millets, and oilseed crops. 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.
Which state has maximum black soil?
1) The state-wise areal distribution of black soils (Table 3) indicated that out of the total area under black soils, the highest percentage is in Maharashtra (27%) followed by Madhya Pradesh (21.3 %), Gujarat (11.5%), Karnataka (9.2 %), Andhra Pradesh (7.1 %) and Chhattisgarh (5.6 %).
In which state black soil is not found?
Answer: it is found in gujarat etc.
Is black soil found in Rajasthan?
Alluvial soil is prominently deposited in north east region of our state, where as sandy soil is found in Thar Desert of western Rajasthan, Black soil is found predominantly in south-East Hadouti region. Black loamy and Red-Black soil is found in Aravali region.
What is the main drawback of black soil?
Kharif in dependable rainfall areas (750mm-1250mm/yr) means considerable loss of water through runoff, considerable loss of nutrients, considerable soil erosion and loss of one crop. Black soil have low fertility and are poor in organic matter, nitrogen, available phosphorous and zinc.
