what are the advantages and disadvantages of using the following
1)of tractor to plough the land
2) bullock to plough the land
3) Pesticides to control the pests
give 3-3 advantages and disadvantages of each
Answers
Answer:
ce energy and
power, calculations with realistic examples.
2. IC Engines: Basic principles of operation of compression, ignition and spark ignition
engines, two stroke and four stroke engines,
3. Cooling and lubrication system,
4. Power transmission system,
5. Broad understanding of performance and efficiency, tractors, power tillers and their
types and uses.
6. Electric motors: types, construction and performance comparison.
7. Tillage: objectives, method of ploughing.
8. Primary tillage implements: construction and function of indigenous ploughs, improved
indigenous ploughs, mould board ploughs, disc and rotary ploughs.
9. Secondary tillage implements: construction and function of tillers, harrows, levelers,
ridgers and bund formers.
10. Sowing and transplanting equipment: seed drills, potato planters, seedling transplanter.
11. Grafting, pruning and training tools and equipment.
12. Inter-culture equipment: sweep. Junior hoe, weeders, long handle weeders.
13. Crop harvesting equipments: potato diggers, fruit pluckers, tapioca puller and hoists.
Practical’s Syllabus:
1.
Answer:
3. pesticides
spraying pesticides can kill the insects which eats crops . disadvantage is spraying pesticides can even have bad effects on fruits or vegetables we eat means it makes fruits or vegetables unhealthy.
Explanation:
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