Question

Identify the use of seed drill.
A.It is used to put manure or fertiliser near the roots of trees.
B.It is used to sow seeds at equal distances.
C.It is used to remove weeds in a field.
D.Both A and B.

Answer 1

Hint: Ensure that the seeds are protected by soil and saved from birds being eaten. We will save time and this approach would waste less seeds.

Complete Answer:
At the correct seeding rate and depth, the seed drill sows the seeds, ensuring that the seeds are covered by soil. This saves them from being eaten or dried up by birds and animals due to sun exposure. With seed drilling machines, seeds are distributed in rows, but as in the case of vacuum precision planters, the distance between seeds along the row can not be changed by the user. Usually, the distance between rows is set by the manufacturer. This helps plants to get enough of the soil's sunshine, nutrients, and water. Most seeds were planted by hand transmission before the invention of the seed drill, an imprecise and inefficient operation with poor seed distribution and low productivity. The ratio of crop yield (seeds harvested per seed planted) can be increased by up to nine times by using a seed drill. Time and labour are saved by the use of the seed drill.Some seed metering devices for planting are known as planters.

Hence the correct answer is option “B”.

Note: The concepts emerged and later translated from ancient Chinese experience into mechanisms that collect seeds from a bin and deposit them down a tube. Seed drills included single-tube seed drills in Sumer and multi-tube seed drills in China in previous decades, and later a Jethro Tull seed drill that has been influential in agricultural technology development in recent centuries. Even for a century after Tull, the hand sowing of grain remained popular.