Improvement in Food Resources

NCERT Class IX Chapter 3

Name a Kharif pulse

Moong

Name a Rabi pulse

Gram

Main use of soybean

Oil extraction (also protein-rich)

Which crop provides edible oil: mustard or wheat?

Mustard

Which crop grows well in saline soils?

Barley

Fodder crop grown in Rabi season

Berseem

Example of a hybrid variety crop

Bt Cotton

Define intercropping

Growing two or more crops simultaneously in the same field

Name a green manure crop

Sunhemp

Benefit of green manure crops

Supplies nitrogen and improves soil fertility

Major cotton pest

Bollworm

Whitefly attacks which crop?

Cotton

Name a viral plant disease

Mosaic disease in tobacco

Powdery mildew is caused by?

Fungus

Define biological control of pests

Using natural enemies of pests to reduce their population

Neem products act as?

Natural insecticides

Pest that attacks plant roots

Root-knot nematode

Pod borer attacks which crops?

Pulses

2,4-D herbicide controls which type of weeds?

Broad-leaf weeds

Best irrigation method for orchards and vegetables

Drip irrigation

Sprinkler irrigation mimics?

Rainfall

Most water-efficient irrigation method

Drip irrigation

Rainwater harvesting can be used for?

Drinking, irrigation, and groundwater recharge

Main advantage of flood irrigation

Simple and low-cost

Rohu and Catla are types of?

Freshwater fish

Beekeeping improves crop yield through?

Pollination

Poultry farming is mainly for?

Eggs and meat

Factors increasing milk yield in cattle

Nutrition, selective breeding, and good housing

Requirements for fish farming

Adequate oxygen and clean water

Silver revolution in India refers to?

Fish production

Purpose of fumigation

Killing stored grain pests

Optimal moisture content in grains before storage

Low

Example of a storage pest

Rice weevil

Use of silos

Long-term grain storage

Seed treatment methods before storage

Heat treatment, chemical treatment, or both

Proper drying of grains prevents?

Insect attack and fungal growth

Purpose of crop rotation

Prevents soil nutrient depletion and pest/disease buildup

Benefit of mixed cropping

Increases total yield

Benefits of intercropping

Nitrogen fixation and pest management

Wheat + mustard in Rabi season is an example of?

Mixed cropping/intercropping

Bt cotton produces?

Insecticidal protein

HYV crops are?

Short-duration, high-yielding, and pest-resistant varieties

Which crop is used to make tofu?

Soybean

Pulses are rich in which nutrient?

Protein

Barley is mainly grown in which season?

Rabi

Major pest of rice

Stem borer

Powdery mildew affects which crops?

Wheat, grapes, and other crops

Example of a biological control agent

Ladybird beetle

Drip irrigation is most suitable for which type of plants?

Orchards, vegetables, and cash crops

Green manure crops are incorporated into soil at which stage?

Before sowing or at early growth stage