Soils of India / भारत की मिट्टियाँ
Soil is a fundamental natural resource for agriculture. For competitive examinations, students should study Indian soils through four connected facts: type of soil, distribution, mineral composition and suitable crops. The source provides all four for the major soil types of India.
Soil agriculture के लिए fundamental natural resource है। Competitive examinations के लिए Indian soils को चार connected facts—soil type, distribution, composition और crops—के साथ पढ़ना चाहिए। स्रोत major soil types के लिए ये सभी facts देता है।
1. Alluvial Soil / जलोढ़ मिट्टी
Occurrence: Punjab, Haryana, Uttar Pradesh, Bihar and Jharkhand.
Composition: Rich in potash and lime but deficient in nitrogen and phosphorus.
Crops: A large variety of Rabi and Kharif crops including wheat, rice, sugarcane, cotton and jute.
वितरण: Punjab, Haryana, Uttar Pradesh, Bihar और Jharkhand।
संरचना: Potash और lime से rich, लेकिन nitrogen और phosphorus की कमी।
फसलें: Wheat, rice, sugarcane, cotton, jute सहित अनेक Rabi और Kharif crops।
2. Black Soil or Regur Soil / काली या रेगुर मिट्टी
Occurrence: Deccan Plateau, Krishna and Godavari valleys, Andhra Pradesh, Madhya Pradesh and Tamil Nadu.
Composition: Rich in iron, lime, aluminium, magnesium and calcium but deficient in nitrogen, phosphorus and humus.
Crops: Cotton, sugarcane, jowar, tobacco, wheat and rice.
Black Soil को Regur Soil भी कहा गया है। यह iron, lime, aluminium, magnesium और calcium से rich है लेकिन nitrogen, phosphorus और humus की कमी होती है। Cotton इसके साथ याद रखने वाली important crop है।
3. Red Soil / लाल मिट्टी
Occurrence: Eastern parts of Deccan Plateau, Tamil Nadu, Goa, Odisha and Meghalaya.
Composition: Rich in iron and potash but deficient in lime, nitrogen, phosphorus and humus.
Crops: Wheat, rice, cotton, sugarcane and pulses.
Red Soil Deccan Plateau के eastern parts तथा Tamil Nadu, Goa, Odisha और Meghalaya में पाई जाती है। यह iron और potash से rich लेकिन lime, nitrogen, phosphorus और humus में deficient है।
4. Laterite Soil / लैटेराइट मिट्टी
Occurrence: Summits of Eastern and Western Ghats, Assam Hills, Andhra Pradesh, Karnataka, West Bengal and Odisha.
Composition: Rich in iron but poor in silica, lime, phosphorus, potash and humus.
Crops: Tea, coffee, rubber, cashew and millets.
Laterite Soil Eastern और Western Ghats के summits तथा Assam Hills आदि में पाई जाती है। Tea, coffee, rubber और cashew इसके साथ महत्वपूर्ण crops हैं।
5. Desert Soil / मरुस्थलीय मिट्टी
Occurrence: Western and North-Western India, Rajasthan, North Gujarat and Southern Punjab.
Composition: Rich in soluble salts but deficient in organic matter.
The source describes it as generally unsuitable for cultivation, but with irrigation it can support drought-resistant crops, millets, barley, cotton, maize and pulses.
यह soluble salts से rich लेकिन organic matter में deficient है। सामान्यतः cultivation के लिए unsuitable बताई गई है, लेकिन irrigation उपलब्ध होने पर drought-resistant crops, millets, barley, cotton, maize और pulses उगाए जा सकते हैं।
6. Mountain Soil / पर्वतीय मिट्टी
Occurrence: Hills of Jammu and Kashmir, Uttarakhand and Assam Hills.
Composition: Rich in iron and humus but deficient in lime.
With fertilisers, tea, fruits and medicinal plants can be grown.
Mountain Soil iron और humus से rich लेकिन lime में deficient होती है। Fertilisers की सहायता से tea, fruits और medicinal plants उगाए जा सकते हैं।
7. Saline and Alkaline Soil / लवणीय एवं क्षारीय मिट्टी
The source gives alternative names such as Reh, Kallar, Usar, Thur and Rukar.
Occurrence: Drier parts of Bihar, Jharkhand, Uttar Pradesh, Haryana, Punjab, Rajasthan and Maharashtra.
Composition: Contains salts such as sodium, magnesium and calcium.
Agricultural suitability: The source describes it as unfit for agriculture.
Saline तथा Alkaline soils को Reh, Kallar, Usar, Thur और Rukar जैसे names से भी बताया गया है। इनमें sodium, magnesium और calcium जैसे salts पाए जाते हैं।
8. Peaty and Marshy Soil / पीट एवं दलदली मिट्टी
Occurrence: Kerala, coastal Odisha, Tamil Nadu and Sundarbans of West Bengal.
Composition: Contains large amounts of soluble salts and organic matter but lacks potash and phosphates.
Crops: Useful for rice and jute cultivation.
यह Kerala, Odisha और Tamil Nadu के coastal regions तथा West Bengal के Sundarbans में पाई जाती है। Rice और jute cultivation के लिए useful बताई गई है।
High-Yield Soil-Crop Associations / महत्वपूर्ण मिट्टी-फसल संबंध
- Black/Regur Soil → Cotton
- Laterite Soil → Tea, Coffee, Rubber, Cashew
- Alluvial Soil → Wheat, Rice, Sugarcane, Cotton, Jute
- Peaty and Marshy → Rice and Jute
- Mountain Soil → Tea, Fruits, Medicinal Plants with fertilisers
Quick Exam Revision / त्वरित परीक्षा पुनरावृत्ति
- Regur → Another name for Black Soil
- Alluvial → Rich in potash and lime
- Black → Deficient in nitrogen, phosphorus and humus
- Red → Rich in iron and potash
- Laterite → Rich in iron
- Desert → Rich in soluble salts
- Mountain → Rich in iron and humus
- Reh/Kallar/Usar → Saline and Alkaline soil