प्रमुख मृदा संसाधन – Rajasthan GK

Adding gypsum is a common method used to reclaim saline-alkaline soils by replacing sodium ions with calcium ions.

The large particle size of sandy soils leads to high porosity and rapid drainage, resulting in low water retention capacity.

Contour bunding involves building earthen barriers along contour lines to reduce water runoff and soil erosion.

Brown Sandy Soil, suitable for pulses and oilseeds, is found in parts of Bharatpur, Alwar, and Jaipur districts.

Sierozems or Grey-Brown Desert Soils are characteristic of the semi-arid climatic zone of Rajasthan.

Black soils (Vertisols) in the Hadoti plateau are primarily formed from the weathering of basaltic rocks.

Excessive irrigation, particularly in canal-irrigated areas, leads to waterlogging and capillary action, exacerbating the problem of saline-alkaline soils.

Bajra (Pearl Millet) is highly drought-resistant and well-suited for cultivation in the sandy soils of western Rajasthan.

Aridisols are the dominant soil order in the arid and semi-arid regions of western Rajasthan, reflecting dry climatic conditions.

Black soils (Vertisols) in the Hadoti region typically have a pH range of neutral to slightly alkaline (7.0-8.0).

Regur is a common local name for Black Soil, which is predominantly found in the Hadoti region of Rajasthan.

Gully erosion is most severe in the Chambal Basin, leading to extensive 'badlands' or 'beehad' formation.

Alfisols are typically found in the eastern plains and Aravalli foothills of Rajasthan, characterized by an argillic horizon.

Medium Black Soil, suitable for jowar and maize, is found in parts of Chittorgarh, Bhilwara, and Bundi districts.

Yellowish-Brown Soil is typically found in the Eastern Plains of Rajasthan, particularly in districts like Jaipur, Alwar, and Dausa.

Entisols are young soils with minimal horizon development and are widely distributed in the western and northern parts of Rajasthan.

The Banas River Basin in eastern Rajasthan is known for its fertile alluvial soils, supporting intensive agriculture.

Nitrogen is the most commonly deficient nutrient in Rajasthan's soils, especially in arid and semi-arid regions due to low organic matter.

Desert soils in Rajasthan often have a high content of calcium carbonate concretions (kankar) in their lower horizons.

Strip cropping is a method where different crops are grown in alternating strips to reduce soil erosion by wind and water.

Red Sandy Soil is predominantly found in districts like Nagaur, Pali, and parts of Jodhpur.

Grey-Brown Loamy Soil, suitable for barley and gram, is found in parts of Sikar, Jhunjhunu, and Nagaur districts.

High water table combined with high evaporation rates in arid regions leads to capillary rise of salts, causing salinization.

Red Loamy Soil is primarily found in the Southern Aravalli Region, covering districts like Udaipur, Dungarpur, and Banswara.

The soils found on the slopes of the Aravalli range are typically thin, stony, and classified as Mountain Soils.

Red and Yellow Soils in Rajasthan are primarily formed from the weathering of granite and gneiss rocks.

Shelterbelts are rows of trees and shrubs planted to reduce wind velocity and prevent wind erosion, common in arid regions.

Desertification in Rajasthan is primarily linked to the degradation and expansion of desert soils due to various factors.

Inceptisols are characterized by minimal horizon development, indicating young or recently formed soils.

Desert soils are typically poor in nitrogen and organic matter but often have high calcium carbonate content.

Black soils (Vertisols) have a high clay content, which gives them high water-holding capacity but also makes them prone to waterlogging.