धान (Rice) फसल नोट्स – सभी कृषि परीक्षाओं के लिए उपयोगी

Introduction of Rice

धान का परिचय

Rice is one of the most important food grain crops of the world. It is the staple food for more than half of the world population. In India, rice is the major Kharif crop and an important source of food security.

धान विश्व की सबसे महत्वपूर्ण खाद्यान्न फसलों में से एक है। यह विश्व की आधी से अधिक जनसंख्या का मुख्य भोजन है। भारत में धान प्रमुख खरीफ फसल है और खाद्य सुरक्षा का मुख्य आधार है।

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Scientific Classification

वैज्ञानिक वर्गीकरण

Particular	Details
Scientific Name	Oryza sativa
Family	Poaceae / Gramineae
Chromosome Number	2n = 24
Origin	South-East Asia

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Rice Crop Notes Introduction

Rice Crop Notes 2026 Introduction

Rice Crop Notes 2026 Climate and Soil

Rice Crop Notes 2026 Important Varieties

Rice Crop Notes 2026 Irrigation Management

Rice Crop Notes 2026 Fertilizer Management

Rice Crop Notes 2026 Diseases and Pest Control

Rice Crop Notes 2026 Hybrid Rice Technology

Rice Crop Notes 2026 Important One Liner Questions

Importance of Rice

धान का महत्व

• Staple food crop of India
• Rich source of carbohydrates
• Important for food security
• Provides employment to millions of farmers
• Rice bran oil has medicinal value
• Straw is used as cattle feed and packaging material

धान भारत की मुख्य खाद्यान्न फसल है। यह कार्बोहाइड्रेट का प्रमुख स्रोत है तथा लाखों किसानों को रोजगार प्रदान करती है।

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Rice Producing Countries

प्रमुख धान उत्पादक देश

Top Rice Producing Countries:

1. China
2. India
3. Indonesia
4. Bangladesh
5. Vietnam

Largest Producer in India:

• West Bengal

Major Rice Producing States:

• West Bengal
• Uttar Pradesh
• Punjab
• Andhra Pradesh
• Telangana
• Chhattisgarh
• Odisha

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Climate Requirement

जलवायु

Rice is a tropical crop and requires hot and humid climate.

धान एक उष्णकटिबंधीय फसल है जिसे गर्म एवं आर्द्र जलवायु की आवश्यकता होती है।

Stage	Temperature
Germination	20–25°C
Growth	25–30°C
Flowering	22–28°C

Rainfall Requirement:

• 100–200 cm rainfall is ideal.

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Soil Requirement

मिट्टी

Rice can grow in different soils but clayey and loamy soils are best.

धान विभिन्न प्रकार की मिट्टियों में उगाया जा सकता है, लेकिन चिकनी एवं दोमट मिट्टी सबसे उपयुक्त होती है।

Ideal Soil:

• Clay loam soil
• pH: 5.5–6.5
• Good water holding capacity

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Seasons of Rice Cultivation

धान की फसल के मौसम

Season	Sowing Time	Harvesting Time
Aus	May–June	Sept–Oct
Aman	June–July	Nov–Dec
Boro	Dec–Jan	April–May

In India:

Rice is mainly grown in Kharif season.

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Methods of Sowing

बुवाई की विधियाँ

1. Broadcasting Method

Seeds are directly broadcasted in field.

2. Transplanting Method

Seedlings are first raised in nursery and then transplanted.

यह सबसे लोकप्रिय विधि है।

Advantages:

• Better plant population
• Higher yield
• Weed control

3. Direct Seeded Rice (DSR)

Seeds are directly sown without puddling.

Benefits:

• Saves water
• Reduces labour cost
• Early maturity

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Nursery Management

नर्सरी प्रबंधन

Healthy seedlings are essential for high yield.

Seed Rate:

• 30–40 kg/ha for transplanting

Seed Treatment:

• Carbendazim
• Trichoderma

Nursery Age:

• 20–30 days seedlings are ideal.

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Seed Rate

बीज दर

Method	Seed Rate
Transplanting	30–40 kg/ha
Direct Seeding	80–100 kg/ha
Hybrid Rice	15–20 kg/ha

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Field Preparation

खेत की तैयारी

• 2–3 ploughings
• Puddling is important
• Level field helps water management

Puddling:

Wet cultivation process to reduce water loss.

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Fertilizer Management

उर्वरक प्रबंधन

Rice requires balanced nutrition.

धान को संतुलित पोषण की आवश्यकता होती है।

Major Nutrients:

• Nitrogen (N)
• Phosphorus (P)
• Potassium (K)

Recommended Dose:

• NPK: 120:60:40 kg/ha (varies regionally)

Micronutrient:

• Zinc is very important.

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Irrigation Management

सिंचाई प्रबंधन

Rice is a water-loving crop.

धान अधिक पानी वाली फसल है।

Critical Stages:

• Tillering
• Panicle initiation
• Flowering

Water Saving Techniques:

• Alternate Wetting and Drying (AWD)
• Direct Seeded Rice (DSR)

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Weed Management

खरपतवार नियंत्रण

Weeds reduce yield significantly.

Common Weeds:

• Cyperus iria
• Echinochloa crus-galli
• Monochoria vaginalis

Weed Control:

• Hand weeding
• Mechanical weeding
• Herbicides

Common Herbicides:

• Butachlor
• Pretilachlor
• 2,4-D

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Important Rice Varieties

धान की प्रमुख किस्में

Variety	Special Feature
IR-64	High yielding
Pusa Basmati	Aromatic
MTU-1010	Popular variety
Swarna	Disease tolerant
Samba Mahsuri	Fine grain

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Hybrid Rice

संकर धान

Hybrid rice gives higher productivity.

Advantages:

• High yield
• Better vigor
• Early maturity

Disadvantages:

• High seed cost
• Requires better management

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System of Rice Intensification (SRI)

SRI विधि

SRI is modern rice cultivation technology.

Features:

• Young seedlings
• Wider spacing
• Less water use
• Higher yield

Benefits:

• Saves water
• Reduces seed requirement
• Increases productivity

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Diseases of Rice

धान के प्रमुख रोग

1. Blast Disease

Causal Organism:

• Pyricularia oryzae

Symptoms:

• Diamond-shaped spots on leaves

Control:

• Resistant varieties
• Fungicide spray

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2. Bacterial Leaf Blight

Pathogen:

• Xanthomonas oryzae

Symptoms:

• Yellowing and drying of leaves

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3. Sheath Blight

Pathogen:

• Rhizoctonia solani

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Insect Pests of Rice

धान के प्रमुख कीट

1. Stem Borer

Damage:

• Dead heart and white ear

Control:

• Chlorantraniliprole
• Pheromone traps

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2. Brown Plant Hopper (BPH)

Damage:

• Hopper burn

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3. Gundhi Bug

Damage:

• Sucks sap from grains

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Deficiency Disorders

पोषक तत्वों की कमी

Zinc Deficiency

Disease:

• Khaira disease

Symptoms:

• Bronzing of leaves

Control:

• Zinc sulphate application

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Harvesting and Threshing

कटाई एवं मड़ाई

Harvesting Stage:

• When grains become hard and golden yellow

Moisture Content:

• Around 20–25%

Threshing:

• Manual or mechanical methods

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Yield of Rice

धान की उपज

Type	Yield
Traditional	20–25 q/ha
HYV	40–60 q/ha
Hybrid	60–80 q/ha

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Rice Based Cropping Systems

धान आधारित फसल प्रणाली

• Rice-Wheat
• Rice-Mustard
• Rice-Potato
• Rice-Pulses

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Nutritional Value of Rice

पोषण मूल्य

Rice mainly contains carbohydrates.

Nutrients:

• Carbohydrates
• Protein
• Vitamins
• Minerals

Brown Rice:

Contains more fiber and nutrients.

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Golden Rice

गोल्डन राइस

Golden rice is genetically modified rice rich in Vitamin A.

Importance:

• Prevents Vitamin A deficiency

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Current Trends in Rice Cultivation

धान उत्पादन की वर्तमान तकनीकें

Modern Technologies:

• Drone spraying
• Precision farming
• DSR technology
• Climate smart agriculture
• Hybrid rice cultivation

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Important One Liner Questions

महत्वपूर्ण वन लाइनर प्रश्न

• Scientific name of rice – Oryza sativa
• Family of rice – Poaceae
• Rice is mainly Kharif crop
• Zinc deficiency causes Khaira disease
• Blast disease pathogen – Pyricularia oryzae
• Rice stem borer causes dead heart
• Basmati rice is aromatic
• DSR saves water and labour
• Golden Rice is rich in Vitamin A
• Largest rice producer in India – West Bengal

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Conclusion

निष्कर्ष

Rice is the backbone of food security in India and many Asian countries. Modern rice cultivation techniques, improved varieties, balanced fertilization, and efficient water management are essential for increasing productivity and sustainability.

धान भारत की खाद्य सुरक्षा की रीढ़ है। आधुनिक तकनीकों, उन्नत किस्मों एवं वैज्ञानिक प्रबंधन से धान उत्पादन को बढ़ाया जा सकता है।

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