Agriculture (NSQF Vocational Trade)
What the domain covers
The PSEB Matric NSQF Agriculture paper tests vocational competencies, not general science alone: crop production, soil and water management, plant protection, farm machinery, horticulture, livestock, and farm business skills. Expect terminology questions, reason-based questions such as why crop rotation is used, practical calculations for seed rate, fertilizer dose, yield and cost, and safety or environment judgments.
Core rules and concepts
- Soil fertility: major nutrients are nitrogen (N), phosphorus (P) and potassium (K). Organic matter improves structure and water-holding capacity; legumes fix nitrogen through Rhizobium in root nodules.
- Crop production: choose an adapted variety, treat seed, sow at the right time and spacing, control weeds early, irrigate at critical stages, and harvest at maturity.
- Irrigation: canal and tube-well water are common; drip and sprinkler systems raise water-use efficiency. Over-irrigation leaches nutrients and can waterlog the root zone.
- Plant protection: use integrated pest management first-resistant varieties, clean seed, field sanitation, biological and mechanical control-then a recommended pesticide at the label dose with personal protective equipment and the stated pre-harvest interval.
- Machinery: match the implement to the job; a seed drill must be calibrated so seed and fertilizer drop at the correct rate.
- Farm business: cost of cultivation, gross income, net income and benefit-cost ratio; minimum support price is a support price, not a guaranteed profit.
Worked example
A recommendation is 120 kg N per hectare. Urea contains 46% N. For 0.5 ha: urea = (120 ÷ 0.46) × 0.5 = 260.9 × 0.5 = 130.4 kg. Reasoning: divide the nutrient dose by the nutrient fraction to convert kg N into kg urea, then multiply by the area.
Traps that cost marks
Confusing kg of nutrient with kg of fertilizer; mixing pre-emergence and post-emergence herbicide timing; ignoring area units, since 1 ha = 2.47 acre; naming a pesticide without dose or PPE; and treating MSP as net profit rather than a support price.