Improvement in Crop Yields

What are Crops and Their Importance?

Crops are plants grown for food. They are essential for our survival.

Types of Crops:

1. Cereals:

   • Examples: Wheat, Rice, Maize, Millets, Sorghum
   • Nutrients: Provide carbohydrates for energy.

2. Pulses:

   • Examples: Gram (Chana), Pea (Matar), Black Gram (Urad), Green Gram (Moong), Pigeon Pea (Arhar), Lentil (Masoor)
   • Nutrients: Provide proteins.

3. Oil Seeds:

   • Examples: Soybean, Groundnut, Sesame, Castor, Mustard, Linseed, Sunflower
   • Nutrients: Provide necessary fats.

4. Vegetables, Spices, and Fruits:

   • Provide vitamins and minerals along with small amounts of proteins, carbohydrates, and fats.

5. Fodder Crops:

   • Examples: Berseem, Oats, Sudan Grass
   • Purpose: Food for livestock.

Growth Requirements for Crops

Different crops need different conditions to grow.

Factors Affecting Growth:

• Climate: The weather in which crops grow.
• Temperature: The degree of heat.
• Photoperiod: The amount of sunlight received.

Sunlight and Photosynthesis:

Plants make their food using sunlight through a process called photosynthesis.

Types of Seasons for Crops:

1. Kharif Season:

   • Grown from June to October.
   • Examples: Paddy, Soybean, Pigeon Pea, Maize, Cotton, Green Gram, Black Gram.

2. Rabi Season:

   • Grown from November to April.
   • Examples: Wheat, Gram, Peas, Mustard, Linseed.

Increase in Crop Production

In India, food grain production increased four times from 1952 to 2010. This was achieved with only a 25% increase in land used for farming.

How Was This Increase Achieved?

The practices involved in farming can be divided into three stages:

1. Choice of Seeds: Selecting the best seeds for planting.
2. Nurturing the Crop Plants: Taking care of the plants as they grow.
3. Protection of Crops: Preventing loss of crops from pests and diseases.

Major Activities for Improving Crop Yields:

• Crop Variety Improvement: Developing better seed varieties.
• Crop Production Improvement: Enhancing farming practices.
• Crop Protection Management: Safeguarding crops from threats.

Questions and Answers

Question 1:

What do we get from cereals, pulses, fruits, and vegetables?

• From cereals, we get carbohydrates.
• From pulses, we get proteins.
• From fruits and vegetables, we get vitamins and minerals.

Question 2:

What are kharif and rabi crops?

• Kharif crops are grown during the rainy season (June to October).
• Rabi crops are grown in the winter season (November to April).

Question 3:

What do pulses provide us with?

• Pulses provide us with proteins.

Question 4:

Why is sunlight important for plants?

• Sunlight is important because plants need it to make food through photosynthesis.

Question 5:

How much did food grain production increase in India from 1952 to 2010?

• Food grain production increased four times during that period.

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Engaging with these concepts will help us understand the importance of crops and how we can improve their yields for a better future.