Explanation

• Crysoperla, also known as green lacewing.
• It is a predator of aphids.

Additional information:

• Ladybird beetle – Aphids & whiteflies
• Trichogramma – Lepidopteran eggs
• Dragonfly – Mosquitoes
• Lacewing larvae – Mealybugs & mites

Last verified on 25-01-2026

Explanation

• Bed and furrow irrigation is a method where crops are planted on raised beds and water flows in the furrows.
• It is a type of flood irrigation designed to conserve water and improve drainage.
• Commonly used for row crops like vegetables, sugarcane, and cotton.

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

• The relationship between two or more variables is called correlation.
• It measures how one variable changes in relation to another.

Additional information:

• Regression – Predicts the value of one variable based on another
• Variation – Degree of spread or dispersion in data
• Covariance – Shows direction of linear relationship
• Standard deviation – Measures average deviation from the mean

Last verified on 25-01-2026

Explanation

• Evaluation done using numbers or measurable data is called quantitative evaluation.
• It focuses on numerical assessment of performance, yield, or results.
• Commonly used in education, agriculture, and research studies.

Last verified on 25-01-2026

Explanation

Crops using specialized planting techniques:

• Sugarcane – Trench technology
• Rice – Transplanting method
• Wheat – Broad casting or drilling
• Maize – Ridge planting
• Cotton – Bed or furrow planting

Last verified on 25-01-2026

Explanation

• Total dry matter of a crop is the complete biomass produced including all plant parts.
• It includes stems, leaves, roots, and grains before any harvest is done.
• This is important for assessing the overall growth potential of the crop.

Last verified on 25-01-2026

Explanation

• Potash (Potassium fertilizer) is usually applied at sowing or planting time.
• Potash improves stress tolerance (drought, heat) in plants.
• Often applied with phosphorus fertilizers (DAP or SSP) for better efficiency.

Last verified on 25-01-2026

Explanation

• ETL (Economic Threshold Level) is the pest population level at which control measures should be taken to prevent significant economic loss.
• For whitefly (Bemisia tabaci), ETL is 5 adults per leaf on crops like cotton or vegetables.
• Helps farmers apply pesticides only when necessary.

Last verified on 25-01-2026

Explanation

• Biotechnology in crops is used to introduce desirable traits for improved performance.
• Common traits include pest resistance, herbicide tolerance, and drought tolerance.
• These traits help in increasing yield, reducing losses, and conserving resources.

Last verified on 25-01-2026