Experiment 16 — Grow the Best Wheat Crop

Topic: Biology · Class 8 · Crop production and management

Aim: Get the highest yield you can without damaging the soil .

Daily: Every decision here is one an Indian farmer makes each season, and the Green Revolution turned exactly these choices — better seed, irrigation and fertiliser — into food security for the country.

Question: A farmer doubles the amount of chemical fertiliser every week. The most likely long-term result is…

Exp: Excess fertiliser harms soil structure and soil organisms, and runs off into ponds and groundwater.

Question: Weeds reduce yield because they…

Exp: Weeding is an essential step.

Question: Manure is better than chemical fertiliser for…

Exp: It builds long-term soil health.

Question: Wheat and gram, grown in winter, are…

Exp: Kharif crops are sown with the monsoon.

Question: Pulses help the soil because their root nodules…

Exp: Which is why crop rotation with pulses is valuable.