JB/T 7874-1999 This standard is a revision of JB/T 7874-95 "Terms and Terms for Planting Machinery". Some new terms and terms were added during the revision. This standard specifies the terms and terms related to sowing, planting and planting machinery. This standard applies to sowing, planting and planting machinery. This standard was first issued in 1986 as GB 6958-86 and was adjusted to JB/T 7874-95 on April 14, 1996. JB/T 7874-1999 Terminology for Planting Machinery JB/T7874-1999 Standard download decompression password: www.bzxz.net

ICS65.060.30
Machinery Industry Standard of the People's Republic of China
JB/T7874-1999
Planting machinery
Sowing and plantingmachinery-Terminology1999-08-06Published
National Machinery Industry Bureau
2000-01-01Implementation
JB/T78741999
Referenced Standards
Sowing machinery
Planting machinery…
Planting machinery··.
JB/T7874-1999
This standard is a revision of JB/T7874-95 "Terminology of Planting Machinery". Compared with JB/T7874-95, this standard adds some new terms according to the current development of agricultural machinery. This standard replaces JB/T7874-95 from the date of implementation. This standard is proposed and coordinated by the National Technical Committee for Agricultural Machinery Standardization. The responsible drafting units of this standard are: China Agricultural Mechanization Science Research Institute, China Agricultural University. The main drafters of this standard are: Wang Hongyong, Yan Weihong, Gu Jiebai, Ma Chenglin, Yang Zhaowen. 1 Scope
Machinery Industry Standard of the People's Republic of China
Terminology of Planting Machinery
Sowing and planting machinery-Terminology This standard specifies sowing, cutting and planting machinery and related terms. This standard applies to sowing, planting and planting machinery. Cited Standards
JB/T7874-1999
Replaces JB/T7874-95
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB3543.3—1995 Inspection Procedure for Seeds of Crops Purity Analysis GB/T3543.4--1995 Inspection Procedure for Seeds of Crops Germination Test 3 Equipment for Sowing
3.1--General Terms
Broadcasting
Spreading seeds on the surface of the field at a certain sowing rate. Sowing inlines
Sowing seeds in strips into the seed furrows at a certain row spacing, sowing depth and sowing rate, and covering with soil. 3.1.3 Hill-drop drilling
Sowing seeds in clusters into the seed furrows or seed holes at a certain row spacing, hole spacing, sowing depth and sowing rate, and covering with soil. Precision drilling
Sowing seeds into the seed furrows or seed holes at a precise number of seeds, spacing and sowing depth, and covering with soil. 3.1.5 Single seed precision sowing single seed drilling is to sow seeds in the furrows at a precise seed spacing and sowing depth, and then cover with soil. Flat drilling
A sowing method in which the surface remains basically flat after sowing. Ridge drilling
A sowing method in which seeds are sown on ridges. 3.1.8 Furrow drilling
A sowing method in which seeds are sown in ridges. Bed drilling
A sowing method in which seeds are sown in shoes. Approved by the State Bureau of Machinery Industry on August 6, 1999 and implemented on January 1, 2000
Film drilling
Covering the seedbed with plastic film and sowing. No-tillagedrilling
Sowing on uncultivated stubble land.
Minimum-seeding
JB/T7874--1999
Compared with conventional seeding, the seeding amount is reduced. Wheat mulch hill-dropping3.1.13
Wheat hill-dropping and mulching.
Arid'nursingandminimumplantingA technology that combines water-dried seedling cultivation with reasonable sparse planting. 3.1.15 Rice direct seeding
The planting technology of directly sowing rice seeds into the rice field is called water-dried seeding. Usually there are early direct seeding and water direct seeding. Tray-type seedingnursing3.1.16
A method of raising seedlings with a soft disk as an isolation layer.
Seedingbroadcasting
A planting method in which the seedlings with soil are thrown into the paddy field at a certain height. 3.1.18 Seeding dropping
Placing blanket seedlings in the field in an orderly manner to ensure a certain row spacing and plant spacing. 3.1.19
Potted seeding transplanting Planting pot seedlings in the field in an orderly manner to ensure a certain row spacing and plant spacing. 3.1.20 Hydroponics
Agricultural engineering technology that uses artificial facilities to apply fertilizer solution to plant plants. Also known as nutrient solution cultivation. 3.1.21
Air broadcast
Sowing seeds at low altitude using an airplane.
Seed bulk density
The mass of seeds per unit volume, in kg/L. 3.1.23 Mass of 1000 seeds
Refers to the mass of 1000 seeds with the moisture content specified by the national standard, in g. 3.1.24
Utility of seeds
The percentage of seeds with real utility value in the seed sample, i.e.: seed utility × seed purity × seed germination rate 3.1.25 Purity of seeds
The percentage of good seeds of the crop left after removing impurities and waste seeds from the seed sample. (GB/T3543.3-1995)
3.1.26 Germination percentage The percentage of normal seedlings grown under the specified conditions and time to the number of seeds for inspection. (3.2 in GB/T3543.41995)
3.1.27. Seed angle of repose2
JB/T7874-1999
The cone bottom angle formed by stacking seeds in a certain way. Seed sliding coefficient of friction3.1.28
The friction coefficient of relative sliding between seeds and material surface. 3.1.29 Application rate
The weight or number of seeds sown per unit sowing area or per unit sowing row length. 3.1.30 Row spacing
The distance between the center lines of two adjacent sowing rows.
Seed spacing
The projection distance between the centers of two adjacent seeds in a single-seed precision sowing row on the center line of the sowing row. 3.1.32 Theoretical seed spacing theoreticalseedspacing The seed spacing specified in the instruction manual of the seeder. Plant spacing plantspacing
The projection distance between the centers of two adjacent plants in a row on the center line of the row. Hill spacing hillspacing
The projection distance between the centers of two adjacent holes in a row on the center line of the row. Hill length lengthofhill
The projection distance between the centers of the two farthest seeds in a hole on the center line of the row. Seeds per hill
The number of seeds in a hole.
3.1.37.- Rowwidth rowwidth
The width of the lateral distribution of seeds or plants in a row. Depth of furrow depthofseedfurrow
The distance from the bottom of the seed furrow to the original ground surface after sowing. 3.1.39
Depth of sowing
The thickness of the soil layer covering the seeds after sowing. Field emergence ratefieldemergencerateThe percentage of the number of seedlings measured in the field to the total number of seeds that should have emerged. That is:
Flowrate
Field emergence rate.
Measured number of seedlings
Number of sown seeds×germination rate
The mass or number of seeds discharged by the seed meter in unit time. Seedingability
The maximum and minimum seeding amount that the whole seeder or a single seeder can achieve under the premise of ensuring working performance. Seedingstability
The stability of the seeding amount of the seeder under the required working conditions. Uniformityofdrilling3.1.44
The uniformity of the distribution of seeds sown by the seeder in the sowing row. JB/T7874-1999
3.1.45 Uniformity of metering The uniformity of the seeds discharged by the metering device.
Evenness of discharge rate between rows 3.1.464
The consistency of the discharge rate of each metering device of the seeder under the same conditions. 3.1.47. Consistency of row spacing The consistency of the row spacing within the same sowing width of the seeder. 3.1.48
Multiples
The seed spacing within the sowing row of single-grain precision sowing is less than or equal to 0.5 times the theoretical seed spacing. 3.1.49 Miss
The seed spacing within the sowing row of single-grain precision sowing is greater than 1.5 times the theoretical seed spacing. Qualified seed spacing spacing of normally sown seeds 3.1.501
For single seed precision sowing, the seed spacing within the sowing row is greater than 0.5 times, but not more than 1.5 times the theoretical seed spacing. Stability of planting depth 3.1.51
Stability of sowing depth.
3.1.52 Slippage rate slippage rate
The degree of slippage of the drive wheel relative to the ground when the seeder is operating in the field. Slippage rate (%) -S-2 yuan rn 100..
Where: S is the actual distance traveled by the drive wheel: the number of revolutions of the drive wheel within the distance S;
(2)
R is the radius of the drive wheel (the outer edge of the rigid wheel is measured, ignoring the protrusions outside the wheel edge; the static radius of the rubber wheel is measured after the tire is loaded).
3.1.53· Slippage rate
For a seeder with a driving wheel as the transmission wheel, the degree of slippage relative to the ground when the transmission wheel is running in field operation. Slippage (%) = 2Rn-S
2 yuan Rn
3.1.54 Seeding transmission ratio The ratio of the speed of the seeder shaft to the speed of the transmission wheel shaft. Rate of damaged seeds 3.1.55
The percentage of seeds with mechanical damage in the seed sample. 3.2 Seeder name
3.2.1 Seeder seeddrill
A machine used to sow crop seeds.
Seeder seedbroadcaster
A machine used for sowing.
Drill for sowing inlines
A machine used for sowing in rows.
Grain drill graindrill
(3)
Machinery mainly used for drilling grain (Figure 1). JB/T7874-1999
1-seed box: 2-ground wheel: 3-lifting mechanism; 4-furrow opener: 5-frame; 6-transmission device: 7-seeder Figure 1
3.2.5 Animal-drawn drill animal-drawn drill a seeder pulled by animals.
Suspended drill tractor-mounted drill 3.2.62
A seeder suspended from a tractor.
Centrifugal drill centrifugal drill a seeder equipped with a centrifugal seeder (Figure 2). 1-seed barrel: 2-furrow opener; 3-row marker; 4-seed delivery tube Figure 2
3.2.8 Air-stream distributing drill air-stream distributing drill uses centralized seeding, air-flow transport and distribution (Figure 3). 3.2.9. Press-wheel drill press-wheel drill uses a pressure wheel to drive the seeding device (Figure 4) 3.2.10 Combined drill combined drill is a machine that performs other operations (such as fertilization, land preparation, film laying, spraying of pesticides, etc.) while sowing. Seed box:
JB/T.7874
Major distributor
Sub-distributor: 5-seed delivery tube
1 Seed box: 2-pressing wheel set; 3 furrow opener; 4 traction frameFigure 4
Precision drillprecision drill
Machinery used for precision seeding (Figure 5)
1 fan; 2-fertilizer box: 3 seeding unit; 4-ground wheelFigure 5
3.2.12 Film-covering drillfilm-covering drillmachine used for film-covering seeding.
3.2.13 Unit drillunit drill
JB/T7874—1999
A drill composed of independently driven seeding units (Figure 6). 1 Seed drill; 2- parallel four-bar profiling mechanism; 3- furrow opener; 4- depth-limiting pressing wheel; 5 transmission chain Figure 6
3.2.14 Plot drill
Drop drill for agricultural experimental plots
3.2.15 Rice direct seeding machine ricedrill
A machine that directly sows seeds into the rice field, usually divided into early direct seeding machine and water direct seeding machine. 3.3 Seeder parts
3.3.1 Feed mechanism (forseed) Metering mechanism (forsccd) Working parts that discharge seeds according to sowing requirements. 3.3.2 External groove wheel type seeding device external force feed Seeder that uses the rotation of the external groove wheel to discharge seeds (Figure 7). 1-seed cup: 2-blocking sleeve; 3-seed tongue: 4-flower-shaped valve; 5-seed device shaft; 6-outer groove wheel Figure 7
JB/T7874-1999
3.3.3 Internal groove wheel type seed meter internal force feed A seed meter that uses the rotation of the inner groove wheel to discharge seeds (Figure 8). 1-seed cup; 2-inner groove wheel; 3-seed device shaft Figure 8
3.3.4 Studded roller feed A seed meter that uses the rotation of the stud wheel to discharge seeds (Figure 9). 1-stud wheel; 2-seed box; 3-insert plate; 4-seed tongue Figure 9
3.3.5 Oscillating rod type seed meter oscillating rod feed A seed meter that uses the swing of the swing rod to discharge seeds (Figure 10).501
The seed spacing within the row of single-seed precision sowing is greater than 0.5 times, but not more than 1.5 times the theoretical seed spacing. Stability of planting depth 3.1.51
Stability of sowing depth.
3.1.52 Slippage rate
The slippage of the drive wheel relative to the ground when the seeder is operating in the field. Slippage (%) -S-2 yuan rn 100..
Where: S The actual distance traveled by the drive wheel: The number of revolutions of the drive wheel within the distance S;
(2)
R The radius of the drive wheel (the rigid wheel measures the outer edge of the wheel, ignoring the protrusions outside the wheel rim; the rubber wheel measures the static radius after the tire is loaded).
3.1.53· Slippage rate
For a seeder with a driving wheel as the transmission wheel, the degree of slippage relative to the ground when the transmission wheel is running in field operation. Slippage (%) = 2Rn-S
2 yuan Rn
3.1.54 Seeding transmission ratio The ratio of the speed of the seeder shaft to the speed of the transmission wheel shaft. Rate of damaged seeds 3.1.55
The percentage of seeds with mechanical damage in the seed sample. 3.2 Seeder name
3.2.1 Seeder seeddrill
A machine used to sow crop seeds.
Seeder seedbroadcaster
A machine used for sowing.
Drill for sowing inlines
A machine used for sowing in rows.
Grain drill graindrill
(3)
Machinery mainly used for drilling grain (Figure 1). JB/T7874-1999
1-seed box: 2-ground wheel: 3-lifting mechanism; 4-furrow opener: 5-frame; 6-transmission device: 7-seeder Figure 1
3.2.5 Animal-drawn drill animal-drawn drill a seeder pulled by animals.
Suspended drill tractor-mounted drill 3.2.62
A seeder suspended from a tractor.
Centrifugal drill centrifugal drill a seeder equipped with a centrifugal seeder (Figure 2). 1-seed barrel: 2-furrow opener; 3-row marker; 4-seed delivery tube Figure 2
3.2.8 Air-stream distributing drill air-stream distributing drill uses centralized seeding, air-flow transport and distribution (Figure 3). 3.2.9. Press-wheel drill press-wheel drill uses a pressure wheel to drive the seeding device (Figure 4) 3.2.10 Combined drill combined drill is a machine that performs other operations (such as fertilization, land preparation, film laying, spraying of pesticides, etc.) while sowing. Seed box:
JB/T.7874
Major distributor
Sub-distributor: 5-seed delivery tube
1 Seed box: 2-pressing wheel set; 3 furrow opener; 4 traction frameFigure 4
Precision drillprecision drill
Machinery used for precision seeding (Figure 5)
1 fan; 2-fertilizer box: 3 seeding unit; 4-ground wheelFigure 5
3.2.12 Film-covering drillfilm-covering drillmachine used for film-covering seeding.
3.2.13 Unit drillunit drill
JB/T7874—1999
A drill composed of independently driven seeding units (Figure 6). 1 Seed drill; 2- parallel four-bar profiling mechanism; 3- furrow opener; 4- depth-limiting pressing wheel; 5 transmission chain Figure 6
3.2.14 Plot drill
Drop drill for agricultural experimental plots
3.2.15 Rice direct seeding machine ricedrill
A machine that directly sows seeds into the rice field, usually divided into early direct seeding machine and water direct seeding machine. 3.3 Seeder parts
3.3.1 Feed mechanism (forseed) Metering mechanism (forsccd) Working parts that discharge seeds according to sowing requirements. 3.3.2 External groove wheel type seeding device external force feed Seeder that uses the rotation of the external groove wheel to discharge seeds (Figure 7). 1-seed cup: 2-blocking sleeve; 3-seed tongue: 4-flower-shaped valve; 5-seed device shaft; 6-outer groove wheel Figure 7
JB/T7874-1999
3.3.3 Internal groove wheel type seed meter internal force feed A seed meter that uses the rotation of the inner groove wheel to discharge seeds (Figure 8). 1-seed cup; 2-inner groove wheel; 3-seed device shaft Figure 8
3.3.4 Studded roller feed A seed meter that uses the rotation of the stud wheel to discharge seeds (Figure 9). 1-stud wheel; 2-seed box; 3-insert plate; 4-seed tongue Figure 9
3.3.5 Oscillating rod type seed meter oscillating rod feed A seed meter that uses the swing of the swing rod to discharge seeds (Figure 10).501
The seed spacing within the row of single-seed precision sowing is greater than 0.5 times, but not more than 1.5 times the theoretical seed spacing. Stability of planting depth 3.1.51
Stability of sowing depth.
3.1.52 Slippage rate
The slippage of the drive wheel relative to the ground when the seeder is operating in the field. Slippage (%) -S-2 yuan rn 100..
Where: S The actual distance traveled by the drive wheel: The number of revolutions of the drive wheel within the distance S;
(2)
R The radius of the drive wheel (the rigid wheel measures the outer edge of the wheel, ignoring the protrusions outside the wheel rim; the rubber wheel measures the static radius after the tire is loaded).
3.1.53· Slippage rate
For a seeder with a driving wheel as the transmission wheel, the degree of slippage relative to the ground when the transmission wheel is running in field operation. Slippage (%) = 2Rn-S
2 yuan Rn
3.1.54 Seeding transmission ratio The ratio of the speed of the seeder shaft to the speed of the transmission wheel shaft. Rate of damaged seeds 3.1.55
The percentage of seeds with mechanical damage in the seed sample. 3.2 Seeder name
3.2.1 Seeder seeddrill
A machine used to sow crop seeds.
Seeder seedbroadcaster
A machine used for sowing.
Drill for sowing inlines
A machine used for sowing in rows. wwW.bzxz.Net
Grain drill graindrill
(3)
Machinery mainly used for drilling grain (Figure 1). JB/T7874-1999
1-seed box: 2-ground wheel: 3-lifting mechanism; 4-furrow opener: 5-frame; 6-transmission device: 7-seeder Figure 1
3.2.5 Animal-drawn drill animal-drawn drill a seeder pulled by animals.
Suspended drill tractor-mounted drill 3.2.62
A seeder suspended from a tractor.
Centrifugal drill centrifugal drill a seeder equipped with a centrifugal seeder (Figure 2). 1-seed barrel: 2-furrow opener; 3-row marker; 4-seed delivery tube Figure 2
3.2.8 Air-stream distributing drill air-stream distributing drill uses centralized seeding, air-flow transport and distribution (Figure 3). 3.2.9. Press-wheel drill press-wheel drill uses a pressure wheel to drive the seeding device (Figure 4) 3.2.10 Combined drill combined drill is a machine that performs other operations (such as fertilization, land preparation, film laying, spraying of pesticides, etc.) while sowing. Seed box:
JB/T.7874
Major distributor
Sub-distributor: 5-seed delivery tube
1 Seed box: 2-pressing wheel set; 3 furrow opener; 4 traction frameFigure 4
Precision drillprecision drill
Machine for precision seeding (Figure 5)
1 fan; 2-fertilizer box: 3 seeding unit; 4-ground wheelFigure 5
3.2.12 Film-covering drillfilm-covering drillMachine for film-covering seeding.
3.2.13 Unit drillunit drill
JB/T7874—1999
A drill consisting of independently driven seeding units (Figure 6). 1 Seed drill; 2- parallel four-bar profiling mechanism; 3- furrow opener; 4- depth-limiting pressing wheel; 5 transmission chain Figure 6
3.2.14 Plot drill
Drop drill for agricultural experimental plots
3.2.15 Rice direct seeding machine ricedrill
A machine that directly sows seeds into the rice field, usually divided into early direct seeding machine and water direct seeding machine. 3.3 Seeder parts
3.3.1 Feed mechanism (forseed) Metering mechanism (forsccd) Working parts that discharge seeds according to sowing requirements. 3.3.2 External groove wheel type seeding device external force feed Seeder that uses the rotation of the external groove wheel to discharge seeds (Figure 7). 1-seed cup: 2-blocking sleeve; 3-seed tongue: 4-flower-shaped valve; 5-seed device shaft; 6-outer groove wheel Figure 7
JB/T7874-1999
3.3.3 Internal groove wheel type seed meter internal force feed A seed meter that uses the rotation of the inner groove wheel to discharge seeds (Figure 8). 1-seed cup; 2-inner groove wheel; 3-seed device shaft Figure 8
3.3.4 Studded roller feed A seed meter that uses the rotation of the stud wheel to discharge seeds (Figure 9). 1-stud wheel; 2-seed box; 3-insert plate; 4-seed tongue Figure 9
3.3.5 Oscillating rod type seed meter oscillating rod feed A seed meter that uses the swing of the swing rod to discharge seeds (Figure 10).7874
Big distributor
Sub-distributor: 5-seed delivery tube
1 Seed box: 2-pressing wheel set; 3 furrow opener; 4 traction frameFigure 4
Precision drillprecisiondrill
Machine for precision seeding (Figure 5)
1 fan; 2-fertilizer box: 3 seeding unit; 4-ground wheelFigure 5
3.2.12 Film-covering drillfilm-covering drillMachine for film-covering seeding.
3.2.13 Unit drillunitdrill
JB/T7874—1999
A drill consisting of independently driven seeding units (Figure 6). 1 Seed drill; 2- parallel four-bar profiling mechanism; 3- furrow opener; 4- depth-limiting pressing wheel; 5 transmission chain Figure 6
3.2.14 Plot drill
Drop drill for agricultural experimental plots
3.2.15 Rice direct seeding machine ricedrill
A machine that directly sows seeds into the rice field, usually divided into early direct seeding machine and water direct seeding machine. 3.3 Seeder parts
3.3.1 Feed mechanism (forseed) Metering mechanism (forsccd) Working parts that discharge seeds according to sowing requirements. 3.3.2 External groove wheel type seeding device external force feed Seeder that uses the rotation of the external groove wheel to discharge seeds (Figure 7). 1-seed cup: 2-blocking sleeve; 3-seed tongue: 4-flower-shaped valve; 5-seed device shaft; 6-outer groove wheel Figure 7
JB/T7874-1999
3.3.3 Internal groove wheel type seed meter internal force feed A seed meter that uses the rotation of the inner groove wheel to discharge seeds (Figure 8). 1-seed cup; 2-inner groove wheel; 3-seed device shaft Figure 8
3.3.4 Studded roller feed A seed meter that uses the rotation of the stud wheel to discharge seeds (Figure 9). 1-stud wheel; 2-seed box; 3-insert plate; 4-seed tongue Figure 9
3.3.5 Oscillating rod type seed meter oscillating rod feed A seed meter that uses the swing of the swing rod to discharge seeds (Figure 10).7874
Big distributor
Sub-distributor: 5-seed delivery tube
1 Seed box: 2-pressing wheel set; 3 furrow opener; 4 traction frameFigure 4
Precision drillprecisiondrill
Machine for precision seeding (Figure 5)
1 fan; 2-fertilizer box: 3 seeding unit; 4-ground wheelFigure 5
3.2.12 Film-covering drillfilm-covering drillMachine for film-covering seeding.
3.2.13 Unit drillunitdrill
JB/T7874—1999
A drill consisting of independently driven seeding units (Figure 6). 1 Seed drill; 2- parallel four-bar profiling mechanism; 3- furrow opener; 4- depth-limiting pressing wheel; 5 transmission chain Figure 6
3.2.14 Plot drill
Drop drill for agricultural experimental plots
3.2.15 Rice direct seeding machine ricedrill
A machine that directly sows seeds into the rice field, usually divided into early direct seeding machine and water direct seeding machine. 3.3 Seeder parts
3.3.1 Feed mechanism (forseed) Metering mechanism (forsccd) Working parts that discharge seeds according to sowing requirements. 3.3.2 External groove wheel type seeding device external force feed Seeder that uses the rotation of the external groove wheel to discharge seeds (Figure 7). 1-seed cup: 2-blocking sleeve; 3-seed tongue: 4-flower-shaped valve; 5-seed device shaft; 6-outer groove wheel Figure 7
JB/T7874-1999
3.3.3 Internal groove wheel type seed meter internal force feed A seed meter that uses the rotation of the inner groove wheel to discharge seeds (Figure 8). 1-seed cup; 2-inner groove wheel; 3-seed device shaft Figure 8
3.3.4 Studded roller feed A seed meter that uses the rotation of the stud wheel to discharge seeds (Figure 9). 1-stud wheel; 2-seed box; 3-insert plate; 4-seed tongue Figure 9
3.3.5 Oscillating rod type seed meter oscillating rod feed A seed meter that uses the swing of the swing rod to discharge seeds (Figure 10).
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