A drill bit is a tool that sows seeds for plants by measuring individual seeds, positioning them on the ground, and covering them up to a certain average depth. Seed exercises sow seeds at equal distances and proper depths, ensuring that the seeds are covered by soil and saved from being eaten by birds. Before the introduction of seed exercises, a common practice is to plant seeds by hand. Besides wasteful, planting is usually not appropriate and causes poor seed distribution, resulting in low productivity. The use of drill can increase the yield ratio (seeds harvested per seed being grown) by nine times.
Some machines for measuring seeds for planting are called planters. These concepts evolved from ancient Chinese practice, and then evolved into a mechanism that took the seeds from the bin and stored them in the tube.
Seed exercises from the previous century included a single tube seed training in Sumer and multi-tube seed exercises in China, and then seed training by Jethro Tull who had been instrumental in the growth of agricultural technology in the last few centuries. Even for a century after Tull, sowing wheat is still commonplace.
Video Seed drill
Design
In older planting methods, a field was originally prepared with a rover for a series of linear cuts known as grooves . The field is then seeded by throwing its seeds over the field, a method known as manual broadcasting . The seeds may not be planted to the proper depth or precise distance to each other. Seedlings that grow in the shade have better protection from the elements, and natural erosion or manual scratching will cover them while allowing some exposure. The result is a field grown roughly in rows, but has a large number of plants outside the groove groove.
There are some disadvantages to this approach. The most obvious is that the seeds that grow outside the hoard will not have the growth shown by the plants grown in the grooves, because they are too shallow on the ground. Therefore, they lose the element. Many seeds remain on the surface where they are vulnerable to being eaten by birds or carried away by the wind. The surface seeds generally never germinate at all or germinate prematurely, only to be killed by frost.
Since the grooves represent only a portion of the field area, and the broadcasting distributes the seeds evenly, this results in a considerable waste of seeds. The less obvious is the effect of overseeding; all plants grow best at a certain density, which varies depending on soil conditions and weather. Additional seeding above this limit will actually reduce crop yields, although more crops are grown, as there will be competition among the plants for minerals, water and available soil. Another reason is that soil mineral resources will also run out at a much faster rate, thereby directly affecting plant growth.
The discovery of drill seeds dramatically improves germination. Seed exercises use a series of runners that are placed at the same distance as the hijacked plot. The runner, or this exercise, opens the grooves into a uniform depth before the seeds are dropped. Behind the exercise is a series of emphases, metal disks that cut out the sides of the trenches where the seeds have been planted, covering them.
This innovation allows farmers to have precise control over the depth at which the seeds are planted. This larger measure of control means that fewer seeds germinate at the beginning or end, and the seeds can take the optimal advantage of the moisture of the soil available on the prepared seed bed. The result is that farmers are able to use fewer seeds, and at the same time experience greater results than under broadcasting methods.
Maps Seed drill
History
While the Babylonians used primitive seed exercises around 14000 BC, the discovery never reached Europe. Multi-tube ore drilling was invented by the Chinese in the 2nd century BC. This multi-tube seed drill has been credited with giving China an efficient food production system that allows it to support its massive population for thousands of years. This multi-tube seed drill may have been introduced to Europe after contact with China. In the Indian subcontinent, seed training was widely used among farmers during the 16th century Mughal Empire.
The first European seed drill was known to be associated with Camillo Torello and patented by the Venetian Senate in 1566. Drilling of seeds was described in detail by Tadeo Cavalina of Bologna in 1602. In England, seed training was further refined by Jethro Tull in 1701 in the Agricultural Revolution. However, these and similar sequential seed exercises are both expensive and unreliable, and fragile. Seed exercises will not be widely used in Europe until the mid to late 19th century, when manufacturing advances such as machine tools, die forging and metal stamping allow the manufacture of large-scale metal components.
The initial exercises were small enough to be pulled by one horse, and many of these remained in use until the 1930s. The availability of steam, and then gasoline tractors, however, saw the development of larger and more efficient exercises that allowed farmers to cultivate larger channels in one day.
Recent improvements to the exercise allow for drilling without previous preservation. This means that soil exposed to erosion or moisture loss is protected until the seeds germinate and grow enough to keep the soil in place. It also helps prevent soil loss by avoiding erosion after tilling. The development of the press exercise is one of the major innovations in pre-1900 agricultural technology.
Usage
Drilling is a term used to mechanically sow from agricultural crops. Traditionally, the seed drill used consisted of a hopper filled with seeds arranged on a series of tubes that could be adjusted at a distance selected from each other to allow optimal growth of the resulting plant. Seeds are spaced using a rotating paddle with a wing drive from one of the drill bore gear - the rate of seed is changed by changing the gear ratio. Most modern exercises use air to carry seeds in plastic tubes from a seed hopper to coulters - these are arrangements that allow seed exercises to be much wider than a 12m seed hopper in some cases. The seed is measured mechanically into the airflow created by a hydraulically driven on-board fan and delivered initially to the distribution head that divides the seed into the pipe that carries the seeds to the individual coulet.
Seedling allows the farmer to sow the seeds in well-placed rows at a certain depth at a given seed level; each tube creates a certain depth hole, drops in one or more seeds, and covers it. This discovery gives farmers greater control over the depth of seeds planted and the ability to seal the seeds without a back tracker. The result is an increased germination rate, and much better crop yields (up to eight times).
Use of drill kits also facilitates weed control. Seeding broadcasting produces a variety of plants that grow at random, making it difficult to control weeds by using other methods than weeding the hands. Fields grown using drill seeds are much more uniform, usually in rows, allowing weeding with hoes during the growing season. Weeding by hand is very tiring and inefficient. Poor weeding reduces crop yields, so this benefit is very significant.
The land must be plowed and tortured. The plow will dig the soil and the rake will smooth the soil and break the lumps. The exercise will be set for the size of the seed used. Then the seeds will be put into the carriage above it and then follow behind while the seed drill is spaced and planting the seed. The system is still in use today but has been modified and updated so that a farmer can plant multiple seed lines at the same time.
Drill seeds can be pulled across the field using a buffalo or tractor. Seeds sown using drill kernels are distributed evenly and placed at the correct depth in the soil.
Bibliography
References
External links
- Tiscali's encyclopedia article on seed training
- Soil conservation processing
- Tillage seed drilling is zero in Pakistan
- Egil ÃÆ'ËÅ"yjord - website
Source of the article : Wikipedia
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