Explain modern method of sowing?
Answers
A seed drill is a device that sows the seeds for crops by metering out the individual seeds, positioning them in the soil, and covering them to a certain average depth. The seed drill sows the seeds at equal distances and proper depth, ensuring that the seeds get covered with soil and are saved from being eaten by birds. Before the introduction of the seed drill, a common practice was to plant seeds by hand. Besides being wasteful, planting was usually imprecise and led to a poor distribution of seeds, leading to low productivity. The use of a seed drill can improve the ratio of crop yield (seeds harvested per seed planted) by as much as nine times.
Some machines for metering out seeds for planting are called planters. The concepts evolved from ancient Chinese practice, and later evolved into mechanisms that pick up seeds from a bin and deposit them down a tube.
Seed drills of earlier centuries included single-tube seed drills in Sumer and multi-tube seed drills in China,[1] and later a seed drill by Jethro Tull that was influential in the growth of farming technology in recent centuries. Even for a century after Tull, hand sowing of grain remained common.