Principles of Agronomy and Crop Classification MCQs 2026

A biennial crop normally completes its life cycle in

1. AOne week✓
2. BOne day✓
3. CTwo growing seasons✓
4. DMore than ten years✓

A cash crop is grown mainly for

1. AOnly family seed storage✓
2. BWild grazing only✓
3. CSale and income generation✓
4. DNo market purpose✓

Most cereal crops belong to the family

1. ASolanaceae✓
2. BFabaceae✓
3. CPoaceae✓
4. DBrassicaceae✓

Plant population in a field is determined mainly by seed rate, germination and

1. AGrain colour✓
2. BMarket distance✓
3. CRow and plant spacing✓
4. DLeaf taste✓

Primary tillage is usually the

1. AFinal harvesting operation✓
2. BSeed grading process✓
3. CFirst major soil-opening operation✓
4. DOnly pesticide mixing✓

Optimum sowing time is important because it aligns crop growth with

1. AOnly market holidays✓
2. BPesticide colour✓
3. CFavourable weather and resource conditions✓
4. DTractor brand✓

Seed treatment before sowing is commonly used to protect seed from

1. AGood germination✓
2. BNormal rainfall✓
3. CSeed-borne and soil-borne pests or diseases✓
4. DHealthy roots only✓

Fallow land is land that is

1. AAlways underwater✓
2. BPlanted every day✓
3. CLeft uncropped for a period✓
4. DUsed only for roads✓

Economic yield is the

1. ATotal rainfall✓
2. BSoil depth✓
3. CHarvested useful portion of a crop✓
4. DPesticide dose only✓

Crop ecology studies the relationship between crops and

1. AOnly market tax✓
2. BOnly storage bags✓
3. CTheir environment✓
4. DOnly legal forms✓

Indeterminate growth means a plant may continue vegetative growth while

1. ASeed remains dry✓
2. BRoots are absent✓
3. CFlowering and fruiting✓
4. DSoil is removed✓

Threshing is the operation of separating

1. AWater from soil✓
2. BFertilizer from bags✓
3. CGrain from harvested plant material✓
4. DRoots from nodules✓