7. Explain the difference between
(a) manures and fertilisers.
(c) sprinkler system and drip system.
(b) cultivator and combine.
Answers
a) manures and fertilisers.
Manures are obtained from natural sources, whereas fertilisers are synthetically manufactured in the factories. Manures are eco-friendly, whereas fertilisers harm the useful microbes present in the soil and also decrease the soil fertility if used for a longer time.
b) sprinkler system and drip system.
While a drip irrigation system is above ground, when it comes to sprinklers, the pipes are underground with only the sprinkler heads visible above ground. When activated, sprinkler systems spray out significant amounts of water to cover a large amount of ground.
c) cultivator and combine.
cultivator is a mordernised tool used for ploughing. it is tractor driven and saves a lot of time of labour. While a combine, as the name suggests, is a combination of a harvester ( which is used for harvesting a crop ) and thresher (used in the process of threshing).
Answer:
Here's what I found....
a. Manures are obtained from natural sources, whereas fertilisers are synthetically manufactured in the factories. Manures are eco-friendly, whereas fertilisers harm the useful microbes present in the soil and also decrease the soil fertility if used for a longer time.
b.While a drip irrigation system is above ground, when it comes to sprinklers, the pipes are underground with only the sprinkler heads visible above ground. When activated, sprinkler systems spray out significant amounts of water to cover a large amount of ground.
c. A cultivator is a modernised tool used for ploughing. it is tractor driven and saves a lot of time of labour. While a combine, as the name suggests, is a combination of a harvester ( which is used for harvesting a crop ) and thresher (used in the process of threshing).