Explanation

• Saline-sodic and sodic soils have excess sodium, which harms soil structure and crop growth.
• These soils require chemical amendments to replace sodium with calcium.
• Gypsum, sulfur, and sulfuric acid are commonly used for reclamation.

Additional information:

Amendments used for sodic soil reclamation:

• Gypsum – supplies calcium directly
• Sulfur – converts into sulfuric acid in soil
• Sulfuric acid – reacts with calcium carbonate
• Pyrite – slow-release sulfur source
• Organic matter – improves soil structure

Last verified on 25-01-2026

Explanation

• Falsa, Sweet-lime, and Jaman all have cooling effects when eaten.
• They provide water, nutrients, and help in lowering body temperature.

Additional information:

• Falsa: Rich in vitamins, helps digestion
• Sweet-lime: High in vitamin C, prevents dehydration
• Jaman: Contains antioxidants, naturally cooling

Last verified on 25-01-2026

Explanation

• The official website is agri.punjab.gov.pk.
• The Agriculture Department Punjab uses an official government website for public services and information.
• The website provides details about crops, fertilizers, seeds, weather advisories, and farmer schemes.
• It is managed under the Punjab Government domain.

Last verified on 24-01-2026

Explanation

• Zinc Phosphide is a chemical compound used in agriculture.
• It is primarily used to control pests that damage crops.
• It is applied carefully because it is highly toxic.
• Commonly used in fields, granaries, and storage areas.

Last verified on 25-01-2026

Explanation

• Splice grafting is used for Apple and Mango trees.
• It allows better growth, early fruiting, and disease resistance.

Additional information:

• Splice grafting is a horticultural technique to join two plants.
• It involves joining a scion and rootstock of similar size.
• Commonly used for woody perennial crops.

Last verified on 25-01-2026

Explanation

• Deciduous plants shed their leaves seasonally, usually in autumn or winter.
• Helps the plant conserve water and survive cold conditions.

Additional information:

• Evergreen plants retain leaves all year round.
• Semi-evergreen plants shed only some leaves, retaining others.

Explanation

• Dry (arid) areas have low rainfall and limited soil moisture.
• Zero tillage helps conserve moisture by not disturbing the soil.

Additional information:

• Zero tillage prevents soil erosion by wind.
• It improves soil structure and organic matter over time.

Last verified on 25-01-2026

Explanation

• Chlorosis is the yellowing of plant leaves due to lack of chlorophyll.
• Commonly caused by nutrient deficiencies (N, Fe, Mg), poor drainage, or disease.

Additional information:

• Necrosis refers to death of plant tissue.
• Leaf curl is deformation due to pests or viruses.

Last verified on 25-01-2026

Explanation

• Journal of Agriculture Research is the official scientific periodical of Agriculture Department Punjab.
• It publishes peer-reviewed research related to crops, soil, and farming practices.

Additional information:

• Subject Coverage: Crop science, soil science, agronomy

Last verified on 25-01-2025

Explanation

• Phosphorus is essential for energy transfer, root development, and flowering.
• Deficiency leads to stunted growth and dark green or purplish leaves.
• Common in acidic, sandy, or phosphorus-deficient soils.

Additional information:

• Foliar spray or phosphate fertilizers (e.g., SSP, DAP) can correct deficiency.
• Adequate phosphorus enhances flowering, fruiting, and seed formation.

Last verified on 25-01-2026