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Chickpea (Gram) Cultivation: Important Facts & One-Liners 🌱

📌 1. General Introduction & Botany

• Botanical Name: Cicer arietinum (Standard name for Desi Gram).
• Family: Leguminosae (also known by its new name, Fabaceae).
• Origin: South West Asia (specifically the Afghanistan and Persia region).
• Common Names: Bengal Gram, Gram, Chana, and Chhole.
• Title: Chickpea is globally celebrated as the "King of Pulses".

🌍 2. Global & Regional Significance

• Largest Producer: India is the largest producer of chickpeas in the world.
• South Asia: It is the largest food legume cultivated in South Asia.
• Global Rank: It ranks as the 3rd largest food legume globally.

🥗 3. Nutritional & Medicinal Value

• Protein Content: Contains around 22% protein.
• Carbohydrates & Fats: Contains 60% to 62% carbohydrates and about 4% fat.
• Minerals: It is highly rich in Calcium (280 mg/100g) and Iron (12.3 mg/100g).
• Vitamin C: Germinating chickpea seeds develop a rich amount of Vitamin C (Ascorbic Acid).
• Medicinal Properties of Leaves: The leaves of the chickpea plant have a distinct sour/bitter taste. This is due to the presence of two organic acids: Malic Acid (which is the major one) and Oxalic Acid. These acids give the plant specific medicinal properties.

⚖️ 4. Classification: Desi Chana vs. Kabuli Chana

Chickpeas are broadly divided into two major types:

Desi Chana (Brown/Black Gram)

• Botanical Name: Cicer arietinum.
• Characteristics: Small seed size, dark brown color, and a very thick seed coat.
• Chromosome Number: 2n = 16 (Though some varieties have 14).
• Cultivated Area: Dominates the globe, covering 90% of the total cultivated area.

Kabuli Chana (White Gram / Chhole)

• Botanical Name: Cicer kabulianum.
• Characteristics: Large/bold seed size, generally white in color, with a thin seed coat.
• Chromosome Number: 2n = 16.
• Cultivated Area: Covers less than 10% of the cultivated area.

🌦️ 5. Climate & Unique Soil Requirements

• Season: It is a Rabi (winter) season crop requiring a cool and dry climate.
• Sensitivities: Chickpea is highly sensitive to frost, especially during the flowering and grain formation stages. It is also sensitive to soil salinity, alkalinity, and waterlogging.
• Temperature Limits: Temperatures exceeding 32°C drastically reduce the crop yield.
• Soil: Well-drained sandy-loam to clay-loam soil with a neutral pH (6 to 8) is considered ideal.
• Unique Seedbed Requirement: Unlike most crops that need a fine seedbed, chickpea requires a Rough and Cloddy Seedbed. Why? Because chickpeas are sown deep, and a cloddy seedbed ensures a higher Oxygen Diffusion Rate (ODR) reaching the roots deep in the soil.

🌱 6. Important Varieties

• Wilt Resistant Varieties: Avrodhi, C-235, and JG-74.
• Ascochyta Blight Resistant: Gaurav.
• Short Duration: JG-11 and ICCV-2.
• For Dryland Agriculture: C-235 is highly recommended.
• Mutant Variety: Aparna.
• Popular Kabuli Variety: Pusa 1003.

📏 7. Agronomy: Seed Rate, Spacing & Deep Sowing

• Sowing Time: Best sown between the second fortnight of October and the first week of November.
• Seed Rate:
  • Desi Chana: 75 to 100 kg/ha.
  • Kabuli Chana: 100 to 125 kg/ha (Higher due to larger seed size).
• Spacing:
  • Desi Chana: 30 cm (Row-to-Row) x 10 cm (Plant-to-Plant).
  • Kabuli Chana: 45 cm (Row-to-Row) x 10 cm (Plant-to-Plant).
• Deep Sowing Rule: Seeds must be sown deep, at about 8 to 10 cm. Deep sowing is highly recommended specifically to protect the crop from Wilt disease!.

💧 8. Seed Treatment, Fertilizers & Water Management

• Seed Treatment: Seeds should be treated with fungicides like Carbendazim or Thiram (2g/kg). More importantly, the seeds must be inoculated with Rhizobium culture to ensure maximum nitrogen fixation.
• Fertilizers: Being a legume, it fixes atmospheric nitrogen, so it only requires a low starter dose of Nitrogen (20 kg/ha) for the first 20-25 days before nodules develop. The ideal NPK ratio is roughly 20:60:20 kg/ha, along with 20 kg of Sulfur.
• Irrigation (2 Critical Stages): Mostly grown rainfed. If irrigated, only two waterings are needed:
  1. Pre-flowering / Branching Stage: 40 to 45 Days After Sowing (DAS).
  2. Pod / Grain Development Stage: 70 to 75 DAS.
  • Warning: Never irrigate heavily during the flowering stage, as it will lead to massive flower drop!.

✂️ 9. "Nipping" or "Topping" (Must Know!)

• What is it? Nipping is the process of plucking or removing the top apical buds of the chickpea plant.
• Why is it done? Apical buds contain high levels of Auxin, causing continuous vertical growth and consuming the most nutrients. By removing them, the nutrients are diverted to the lateral branches where the actual flowers and pods develop. This drastically increases flowering, pod size, and overall yield.
• When is it done? Around 30 to 40 Days After Sowing, or when the plant reaches a height of 15 to 20 cm.

🐛 10. Major Pests and Diseases

Memorize the scientific names for these critical threats:

• Most Serious Pest: Gram Pod Borer (Helicoverpa armigera).
• Cutworm: (Agrotis ipsilon) - This pest notoriously cuts the seedlings right at ground level.
• Wilt Disease: The most important fungal disease, caused by Fusarium oxysporum. Managed by deep sowing and using resistant varieties like Avrodhi.
• Ascochyta Blight: Caused by the fungus Ascochyta rabiei.

🚜 11. Harvesting & Yield

• Harvesting Stage: Ready to harvest when the leaves dry and fall off, the pods/stems turn straw-brown, and the seeds become extremely hard (making a sharp cracking sound when chewed).
• Yield:
  • Desi Chana: 1.5 to 2.0 tonnes/hectare.
  • Kabuli Chana: 2.5 to 3.5 tonnes/hectare.

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