Explanation

• Organic farming avoids synthetic fertilizers and pesticides, focusing on natural methods.
• Compared to conventional farming, organic farming usually gives slightly less yield.

Additional information:

• Organic farming produces healthier crops with better nutritional quality.
• Yield gap can be reduced using improved organic techniques and crop rotation.

Last verified on 23-01-2026

Explanation

• Plant growth regulators control growth, development, and responses in plants.
• Abscisic acid (ABA) is a growth-inhibiting hormone.
• It suppresses root and leaf growth and helps plants respond to stress conditions.

Additional information:

• ABA is known as the stress hormone of plants.
• It causes stomatal closure during drought to reduce water loss.

Last verified on 23-01-2026

Explanation

• Sugar beet can develop a rotten smell when it undergoes microbial breakdown.
• This smell is caused by fermentation, where microorganisms convert sugars into alcohols, acids, and gases.

Additional information:

• Fermentation can spoil sugar beet if not processed quickly after harvest.
• Microorganisms like yeast and bacteria are responsible for this smell.

Last verified on 22-01-2026

Explanation

• Exhaustive crops are crops that remove large amounts of nutrients from the soil.
• Continuous cultivation of these crops can deplete soil fertility.
• Examples include nutrient-demanding cereal crops like maize, wheat, and rice.

Additional information:

• Maize, wheat, and rice remove large amounts of nitrogen, phosphorus, and potassium from the soil.

Last verified on 22-02-2026

Explanation

• Potato cultivation requires planting healthy seed tubers at the recommended seed rate for optimum yield.
• Recommended seed rate is 800–1200 kg per hectare.

Additional information:

• Seed tubers should be disease-free and healthy.
• Planting is done at 25–30 cm spacing between tubers for best results.

Last verified on 20-01-2026

Explanation

• Soil has different layers called horizons, each with specific properties.
• The plough pan is a hard, compact layer formed just below the depth reached by ploughing.
• It restricts root growth and water movement.

Last verified on 22-01-2026

Explanation

• The chemical used specifically for mite control is called Acaricide.
• Acaricides target mites and ticks rather than general insects.
• They are widely used in agriculture and livestock management.

Last verified on 22-01-2026

Explanation

• The first two steps in plant hybridization are Emasculation and Pollination.

Additional information:

• Emasculation: Removing male parts (anthers) from the flower to prevent self-pollination.
• Pollination: Transferring pollen from the chosen male parent to the emasculated flower.

Last verified on 22-01-2026

Explanation

• Natural pastures used for grazing livestock are called Rangeland.
• They provide food and habitat for animals like cattle, sheep, and goats.

Additional information:

• Unlike farmland, rangelands are mostly uncultivated and rely on natural vegetation.

Last verified on 22-01-2026

Explanation

• A climate with no or very little rainfall, insufficient to support life, is called a Desert Climate.
• Deserts receive minimal precipitation, usually less than 250 mm per year.
• Temperatures can be extremely high during the day and very low at night.

Last verified on 22-01-2026