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Topic: Seed drill

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	Seed drill - Wikipedia, the free encyclopedia (Site not responding. Last check: 2007-10-20)
		The seed drill was invented by Jethro Tull in 1701: It allowed farmers to sow seeds in well-spaced rows at specific depths.
		Some of the broadcast seeds were cast on unprepared ground where they never germinated, germinated prematurely only to be killed by frost or died from lack of access to water and nutrients.
		The first seed drills were small enough to be drawn by a single horse but the availability of steam and, later, gasoline tractors saw the development of larger and more efficient drills that allowed farmers to seed even larger tracts in a single day.
	en.wikipedia.org /wiki/Seed_drill (265 words)

	Seed and fertilizer drill with spring loaded coulters counter-mounted on vertically adjustable beam - Patent 4149475
		Seed drill has a row of coulters which are raised and lowered by a beam positioned above the coulters and connected to the coulters by spring assemblies.
		The drill of claim 3 characterized in that the coulters of said front row are arranged alternately with the coulters of said rear row across the operating width of the drill.
		The drill of claim 11 characterized in that removable stops are provided which can be fitted round the piston rods of said hydraulic rams to engage abutment means at the ends of the piston rods to limit retraction of the piston rods and thereby limit the lowering of the beam relative to the frame.
	www.freepatentsonline.com /4149475.html (5767 words)

	Equipment Considerations for No-till Soybean Seeding
		No-till planters and drills must be able to cut and handle residue, penetrate the soil to the proper seeding depth, and establish good seed-to-soil contact.
		Drills, depending on the opener spacing, have four times the number of row units for a given width of operation compared to a row-crop planter of similar width (30-inch spacing).
		The interest in the drills with singulation devices similar to row-crop meter devices (Figure 3) is due to the possibility to improve stands, reduce seed cost (from not over-seeding), and reduce variability seen in conventional flute-meter devices.
	www.ext.vt.edu /pubs/bse/442-456/442-456.html (3032 words)

	Stanhay - Home & News
		Each drill unit, early production models are designed for 18 or 24 row working, is staggered on the frame to allow a minimum row width of 16.6cm (6.5ins) to be achieved.
		Seed is blown down from the front mounted hopper via cyclones to the metering units just above the seed-bed.
		This matches a conventional cereal drill, but, as the DART is not as wide, between 3m and 4m, output is less.
	www.stanhay.co.uk /index.php?subaction=showfull&id=1082456001&archive=&start_from=&ucat=& (176 words)

	Calibrating Drill Seed Meters
		Seed size varies between varieties, and the size of seed of the same variety may vary from one year to the next.
		The drill row adjustment factor is a multiplication factor that converts the seeds in a lineal foot of drill row into seeds planted per square foot.
		The seed collected at the openers is weighed and the average seeds per square foot or seeds per lineal foot of drill row can be calculated by multiplying the weight of seed caught from the individual openers (pounds of seed) times the seeds in a pound of seed.
	www.ext.nodak.edu /extpubs/ageng/machine/ae1144w.htm (2220 words)

	Grower Drill Fabrication for Direct Seeding Under NW Conditions
		This drill may not be the perfect answer for every farming situation, but it does supply the farmer with a tool that is relatively inexpensive for having a drill capable of seeding a wide range of conditions.
		Drills that scatter seed throughout the seed bed profile have a high percentage of weak seedlings developing in sub-optimal conditions.
		Many drills currently on the market suffer from design compromises that favor performance on the highway, compromises that were made in order to utilize universal parts and they suffer from attempts to solve performance problems by adding more parts.
	pnwsteep.wsu.edu /directseed/conf98/growerdr.htm (4456 words)

	AllRefer.com - drill, tool (Technology: Terms And Concepts) - Encyclopedia
		Hand-powered rotary driving devices include the hand drill, which has a crank that transmits turning power to the bit through a gear and pinion, and the bit brace, which is a bow-shaped device that is rotated to turn a bit.
		For example, an air percussion drill chips through rock with a cross-shaped bit driven by a piston; the similar churn drill is lifted and dropped by cable.
		The agricultural drill is named for its special uses, e.g., the grass drill and the grain drill, or for its construction, as the disk drill and the hoe drill.
	reference.allrefer.com /encyclopedia/D/drill-to.html (599 words)

	Inventors of the Industrial Revolution
		He realized that the usual way of sowing seeds by scattering them on the ground was wasteful.
		The seed drill, which he invented in 1701, allowed the farmers to sow seeds in well-spaced rows at specific depths.
		When his invention was used, a larger share of the seed germinated.
	www.teachersfirst.com /lessons/inventor/ag3.htm (76 words)

	DREC Cross-Slot Plot Drill
		This drill utilizing Cross-slot openers was assembled by a local fabricating manufacturer in Nov 2003 and demonstrated on five farms in 2004.
		The objective of this project was to 1) develop a no-till demonstration/research plot drill specifically for North Dakota conditions, 2) demonstrate the capabilities of this no-till drill under a wide range of on-farm conditions, 3) use the drill to seed trials requiring no-till methods.
		The first strip was seeded with a Morris air drill with narrow hoe openers, the second strip was seeded with a John Deere 1895 air drill with single disc openers and the third strip was seeded with the Cross-Slot plot drill.
	www.ag.ndsu.nodak.edu /dickinso/research/2004/agron04h.htm (3215 words)

	Calibrating Drill Seed Meters (Site not responding. Last check: 2007-10-20)
		Grain drills are designed to plant seed at the proper rate and with precision if the proper adjustments are made to the seed metering system.
		The seeding rate tables found in your operators manual or on the inside of the seed hopper lid are based on a standard weight per bushel for various crops.
		Therefore, if one lot of seed varies in size and weight from another, two different amounts or number of seeds will be metered if the drill setting is not changed.
	www.smallgrains.org /Techfile/Hofman.htm (552 words)

	Seed drill - Open Encyclopedia (Site not responding. Last check: 2007-10-20)
		Prior to this method (broadcasting), famers simply cast seeds on the ground for them to grow where they landed.
		Much of these seeds remained on the surface ground where they never germinated, or germinated prematurely, only to be killed by frost.
		This invention gave farmers much greater control over the depth of the seed that was planted, and the ability to cover up the seeds without back tracking.
	open-encyclopedia.com /Seed_drill (173 words)

	Seeding By Plant Population - Crop Production - Manitoba Agriculture, Food and Rural Initiatives
		Seed weights vary between varieties, fields, crop types and from year to year.
		Expected seed survival is the expected germination less a small amount for seedling mortality.
		Once the desired seeding rate is calculated, the next step is to calibrate the seed drill so that it drops the right amount of seed.
	www.gov.mb.ca /agriculture/crops/cropproduction/faa03s00.html (286 words)

	The Open Door Web Site : History : The Agricultural Revolution : The Seed Drill
		Because the seed drill planted seeds in straight lines, a mechanical horse-drawn hoe, which Tull also invented, could be used to remove weeds from between the lines of crop plants.
		His Seed Drill was not immediately popular in England, although it was quickly adopted by the New England colonists across the Atlantic.
		Although his Seed Drill was improved in 1782 by adding gears to the distribution mechanism, the rotary mechanism of the drill provided the foundation for all future sowing technology.
	www.saburchill.com /history/chapters/IR/004f.html (494 words)

	grain drill -- Encyclopædia Britannica
		, consisted of a wooden plow equipped with a seed hopper and a tube that conveyed the seed to the furrow.
		The grain drill, or seed drill, one of the oldest farm machines, plants seed at a controlled depth and in accurate amounts to obtain optimum crop yields.
		The earliest known grain drill, which was invented in Mesopotamia before tillage, consisted of a wood plow equipped with a seed hopper and a tube that conveyed the seed to the furrow.
	www.britannica.com /eb/article-9037622?tocId=9037622&query=grain (875 words)

	Aitchison-seeding with the best (Site not responding. Last check: 2007-10-20)
		The Aitchison range of specialist seed drills are widely accepted around the world as being premium machines and are noted for their accuracy, durability and performance in the field.
		The sponge, seed feed mechanism, offers a coefficient of variation of 97 percent to 98 percent accuracy and can handle all seeds from the smallest brassicas'/turnips to broadbeans with sowing rates from as low as 1 pound and up to 350 pounds per acre.
		Aitchison was the first seed drill in the world to use the revolutionary inverted T Baker boot.
	www.hpj.com /FarmShows/FSedit1/Aitchisonseedingwiththebest.cfm (364 words)

	AP INNOVATIONS
		Tull thought the old way of sowing seeds, which was to scatter the seeds on the ground by hand, was rather inefficient and wasteful, as many of the seeds did not take root.
		As the seed drill was designed for animal labor, the horse would pull on it—and when the horse pulled on it, a wooden gear would turn, fuss with the spring-loaded mechanism to let relatively equal amounts of seed to be dropped into the soil at regular intervals.
		The seed drill was capable of sowing three rows of seed at a time.
	www.tjhsst.edu /~gkannark/1701_01.htm (476 words)

	Truax Seed Planting Equipment
		Seed placement is the primary concern of a person involved in the planting of native and cool season grasses.
		Seed flow from the small seed box and cool season/grain box is set by moving the shift levers located on the seed boxes.
		Seed gaskets and retainer plates provided with the Drill can be placed over the picker wheels in the fluffy box.
	www.truaxcomp.com /faq.html (800 words)

	Experience with Direct Drilling in Semiarid Oregon
		Seed Placement: Growers should evaluate their soils, slopes, residue conditions, crop rotations and precipitation when considering direct drill options.
		Drills must be capable of placing seed, at uniform depth, in firm contact with moist soil with the proper amount of soil cover.
		In the transition from conventional to direct drilling, it appears that nitrogen rates may have to be adjusted upward.
	pnwsteep.wsu.edu /directseed/conf98/experien.htm (1169 words)

	WCM-News
		If you have smaller seed this year and use the same setting on the drill as last year, the result will be a higher seeding rate.
		An alternative is determining the number grain drill wheel revolutions to seed one-hundredth of an acre.
		Next jack up the drill so that the drill wheel can be turned the calculated number of revolutions with the drill seed metering system engaged.
	ipcm.wisc.edu /wcm/pdfs/2001/01-5Equipment1.html (570 words)

	seed drill
		The sowing of seeds in uniform rows allowed weeding between the rows of seedlings during growth, so improving the yield.
		The seed is stored in a hopper and delivered by tubes into furrows in the ground.
		The furrows are made by a set of blades, or coulters, attached to the front of the drill.
	www.tiscali.co.uk /reference/encyclopaedia/hutchinson/m0006239.html (167 words)

	[No title]
		Deliver seed in original containers labeled as directed by the Department of Agriculture showing analysis of seed mixture, percentage of pure seed, year of production, net weight, date of packaging, degree of purity rate of germination, weed content and data of test.
		Submit seed vendor's certified statement for each grass seed mixture required, stating botanical and common name, percentage by weight, percentages of purity, germination, and weed seed for each grass seed species.
		Seed shall be planted 1 inch deep in rows 10 inches apart.
	www.sandia.gov /engstds/ConstSpecs/Special/RMSEL/02930.DOC (368 words)

	Seed Drill (Site not responding. Last check: 2007-10-20)
		The development of the press drill was one of the major innovations in pre-1900 farming technology.
		The seed drill employed a series of runners spaced at the same distance as the ploughed furrows.
		Behind the drills were a series of presses, metal discs which cut down the sides of the trench into which the seeds had been planted, covering them over.
	timelinks.merlin.mb.ca /referenc/db0104.htm (265 words)

	Sowing Crops
		To the left is a multiple row seed drill.
		It could be adjusted to the amount of seeds and at what intervals they were released into the soil.
		The modern day version of the seed drill is much larger and appears much more complicated.
	historylink101.com /lessons/farm-city/sowing-seeds.htm (337 words)

	Why and How to calibrate your seed drill (Site not responding. Last check: 2007-10-20)
		There are a number of factors that will affect the rates at which your drill sows: Different combinations of seed will flow at different rates.
		Seed for sowing can only be offered for sale once a 'Certificate of Analysis' has been issued, stating the purity and germination of that lot of seed.
		This vital information can determine the true worth of the seed and protect the end user from disappointing results and the introduction of undesirable species, which may be in the lot.
	www.smythseeds.com /clippings/clipping1.htm (313 words)

	Planting a Prairie (Site not responding. Last check: 2007-10-20)
		The seed of prairie plants may be planted by a variety of methods, including specially made drills, rotary spreaders, or hydraulic mulchers.
		If you plan to use a rotary spreader or drill to plant your prairie seed, make sure that the seed is dry and relatively free of large (three inches or longer) pieces of leaves or stems.
		In this method, seeds or plants of a single species were placed into plots with the belief that the plants would mature and spread with time.
	dnr.state.il.us /conservation/naturalheritage/prairie/plant.htm (657 words)

	seed drill (Site not responding. Last check: 2007-10-20)
		His seed drill would sow seed in uniform rows and cover up the seed in the rows...
		The first prototype seed drill was built from the foot pedals of Jethro...
		The Seed drill was invented by Jethro Tull in 1701: It allowed farmers to sow...
	www.gardening-plus.com /articles/15/seed-drill.html (765 words)

	BBC Online - Norfolk - Your - A-Z - Jethro Tull
		Tull's most original contributions were the seed drill and horse hoe.
		In the past, farmers would scatter their seed by hand which was wasteful because many failed to take root.
		The seed drill allowed farmers to sow seeds in well-spaced rows at specific depths.
	www.bbc.co.uk /norfolk/your/a-z_norfolk/a-z_jethro.shtml (223 words)

	seed drill strip till seed drills no till seed drill seed grader seed processing implement — Dasmesh Mechanical India
		This machine is used for all types of seeds (wheat, maize, soya,......) on zero - tilled or semi - tilled soil.
		This Drill is specially designed for direct sowing of wheat, maize, mustard, pea etc. after harvesting of paddy.
		This machine is used for sowing all types of seeds (wheat, maize, soya,......) in fully tilled field.
	www.dasmesh.net /seeddrill.htm (238 words)

	PNEUMATIC PRECISION SEED DRILLS - INTERROW CULTIVATORS - INO Brezice
		AEROMAT A is a precision pneumatic seed drill of unique design, operating on the basis of the overpressure, for sowing maize, sugar beet, beans, peas, root crops etc. Precision seeding is controlled by a special modified seed wheel, driven by a central drive via pneumatic-tyred drive wheels.
		The air flowing from the nozzle into the space in the seed wheel holds the seed at the bottom of the space in position whilst the superfluous seeds are flown back into the antechamber.
		Some models of seed drills are modernized with hydraulic markers and hydraulic system for transport position.
	www.inobrezice.com /eng/proizvodi_sejalniki.html (248 words)

	AEN-81: Grain Drill Calibration Procedures for Winter Wheat
		In the event your seed supply is from multiple lots, the drill may have to be recalibrated for each lot.
		For the lot of seed with the tag shown in Figure 1, 1,000 wheat grains were determined to weigh 33.0 grams.
		For a John Deere 750 no-till drill, the recommended setting for wheat is between 28 and 32 (137 lb/ac and 165 lb/ac or 154 and 180 kg/ha).
	www.ca.uky.edu /agc/pubs/aen/aen81/aen81.htm (1386 words)

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