Improvement in Food Resources

Crossing between genetically dissimilar plants to obtain crops having useful characteristics

• Genetically modified organisms

• Hybridization

• Agronomics

• None of them

The desirable agronomic characters improved using crop variety programmes are called

• Tallness and dwarfness

• draught

• salinity

• cold

Cyperinus and Parthenium are types of

• Diseases

• Pesticides

• weeds

• pathogens

 What is the process of growing two or more crops in a definite pattern?

• Crop rotation

• Inter-cropping

• Mixed cropping

• Organic cropping

What is the supplying of water to land through artificial means?

• Sprinkling

• Evapotranspiration

• Irrigation

• natural rain

Growing two or more crops but in the definite row pattern is known as

• Mixed cropping

• Crop rotation

• Intercropping

• All of these

Growing of different crops on a piece of land in a pre-planned succession

• Crop rotation

• Inter cropping

• Mixed cropping

• All of these

The unwanted plants which grow with main crops are called

• Weeds

• Crops

• Grasses

• Herbs

Preventive and control measures adopted for the storage of grains include

• Strict cleaning

• Proper drying of the produce

• Fumigation

• All of the above

Which elements are considered non-mineral nutrients?

• Carbon, Hydrogen & Oxygen

• Carbon, Hydrogen, Oxygen and Nitrogen

• Carbon, Potassium, Hydrogen & Nitrogen