CN104180734A - Bevel protractor used for crop lodging measuring - Google Patents
Bevel protractor used for crop lodging measuring Download PDFInfo
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- CN104180734A CN104180734A CN201410417702.XA CN201410417702A CN104180734A CN 104180734 A CN104180734 A CN 104180734A CN 201410417702 A CN201410417702 A CN 201410417702A CN 104180734 A CN104180734 A CN 104180734A
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- lodging
- bevel protractor
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Abstract
The invention discloses a bevel protractor used for field crop lodging studying. The bevel protractor is structurally characterized in that the bevel protractor is mainly composed of a fixed ruler, a movable ruler, a connection ruler and a fixed sleeve; length scales are arranged on the fixed ruler so that the canopy height of a crop group to be measured can be measured directly and the fixed ruler is used as a reference object during crop lodging angle measuring; a V-shaped groove is formed in the connection ruler in the long axis direction of the connection ruler, the angle values from 0 degree to 90 degrees are carved at the upper half portion of the connection ruler, and the crop group stalk lodging angle is measured according to the angle formed between the fixed ruler and the movable ruler when the movable ruler slides along the V-shaped groove of the connection ruler. When the bevel protractor is used independently or in cooperation with a crop anti-lodging strength tester, measuring of the canopy height of the crop group, the field crop lodging angle and the crop stalk lodging angle during crop anti-lodging strength measuring can be realized.
Description
Affiliated technical field
The present invention relates to a kind of height and angle measuring tool, particularly a kind of can be under field condition can Quick Measurement crop groups height, the bevel protractor of crop groups stem stalk lodging angle in plant lodging angle and crop strength detection process resistant to lodging.
Background technology
Lodging be by internal and external factor actings in conjunction such as wind, rain and crop stem characteristics, caused make the phenomenon of crop stem from natural erectility to permanent dislocation.Lodging is still one of greatest factor of the high crop yields such as current restriction wheat, paddy rice, stable yields.Lodging not only has a strong impact on crop yield but also can due to fungi, grow, produce toxin and then affect the quality of grain.At present, although prevent that the method for plant lodging is a lot, as optimize crop-planting, management method, use plant growth regulator and control plant height, cultivate short-stalked crop kind etc., but cultivate and select crop varieties resistant to lodging to be still to prevent the most effectual way of lodging.
In recent decades, people once used many methods to identify the intensity resistant to lodging of crop.These methods can be divided into three major types type according to its principle or operation format: the one, and nature or artificial induction's plant lodging evaluation assessment, as passed through, increase planting density, the cultivation management measures such as excessive applied nitrogen and the lodging that utilizes the powerful wind-force inducing wheat of properller generation; The 2nd, crop stem physical characteristics evaluation assessment, as stem stalk load-bearing method, stem stalk laterally fracture strength detection method, straw stiffness determination method; The 3rd, mechanics evaluation method, utilizes the mechanical index such as the elastic modulus of stem stalk base pitch and bend resistance intensity to evaluate the lodging resistance of wheat stalk stalk.
At present, using more crop authentication method resistant to lodging is both at home and abroad field straw stiffness assay method, utilize straw stiffness analyzer, crop intensity measuring device resistant to lodging to measure needed thrust or pulling force while making crop stem lodging extremely become 30 °～45 ° of angles with ground, utilize its straw stiffness to evaluate the intensity resistant to lodging of crop.The operation attitude of device for measuring force and make the final angle of crop stem lodging very large to measurement result Accuracy in crop strength detection process resistant to lodging.
At present, conventional angle measurement unit is divided into two classes by its principle: a class is protractor formula mechanical angle measurement mechanism, and such device is used for the measurement of mechanical drawing, teaching or small-sized object angle; Another kind of is electron type level angle measurement unit, and such device is used for the measurement of building structure angle.The former is less, the latter is larger, is all not suitable for the measurement as field crops lodging angle.
Summary of the invention
The object of the present invention is to provide a kind of height for field crops research resistant to lodging and angle measuring tool, solve the measurement problem of colony's lodging angle in crop groups canopy height in crop research resistant to lodging, lodging angle, strength detection process resistant to lodging, improve the accuracy of measuring lodging-resistant strength of crop result.
The invention belongs to mechanical type height and angle measurement unit.
Bevel protractor disclosed by the invention mainly comprises quiet chi, moving chi, connects chi and fixed sleeving four parts.On quiet chi, there is length scale, in plant lodging measurement of angle, as object of reference, keep vertically motionless, simultaneously owing to there being length scale can directly measure the height of crop plant to be measured; On moving chi, have length scale, in crop strength detection resistant to lodging for bevel protractor the mensuration apart from crop base portion horizontal range to be measured; Connect chi long axis direction and have " V " groove, the angle value of 0～90 ° is carved with in half portion thereon.Quiet chi and moving chi utilize screw to couple together by the perforate of its lower end; Connection chi utilizes flat head screw to be connected by the perforate of front end with the perforate of quiet chi middle and lower part, and rear end utilizes flat head screw and moving chi to couple together by the perforate at its " V " shape groove and moving chi middle part, forms complete bevel protractor.Bevel protractor borrows moving chi along connecting the formed quiet chi of slip of chi " V " shape groove and the angle of the lodging of the goniometry crop groups stem stalk between moving chi.For convenience of being used in conjunction with of bevel protractor and intensity measuring device resistant to lodging, borrow quiet chi that bevel protractor is welded on metal fixed sleeving, the other one side of sleeve pipe is welded with holding screw fixing for bevel protractor.
The invention has the beneficial effects as follows the mensuration that can measure rapidly plant lodging angle in the height of crop groups, the angle of crop generation lodging and crop strength detection process resistant to lodging in field crops research resistant to lodging, improve the accuracy of crop strength detection resistant to lodging.This apparatus structure is simple, small and exquisite, during use, opens, and the used time can not folded up, sturdy and durable, easy to use.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention will be further described.
Fig. 1: the present invention launches measuring state schematic diagram;
Fig. 2: the present invention folds collapsed state schematic diagram;
Fig. 3: quiet chi structural representation;
Fig. 4: connect chi structural representation;
Fig. 5: moving chi structural representation;
In figure: the quiet chi of 01-, 02-moves chi, 03-connects chi, the quiet chi of 04-with connect chi fixed screw, 05-connects chi " V " shape groove, 06-connects chi and moving chi fixed screw, the quiet chi of 07-and moving chi fixed screw, 08-fixed sleeving, 09-bevel protractor fixed screw nut, 10-bevel protractor fixed screw, 11-circular scale bar, the quiet chi of 12-and moving chi fixed screw holes, the quiet chi of 13-with connect chi fixed screw holes, 14-connects chi and quiet chi fixed screw holes, 15 moving chi and quiet chi fixed screw holes, and 16-moves chi and connects chi fixed screw holes.
Embodiment
The assembling of bevel protractor: the moving chi of the quiet chi of (1) 01-and 03-borrows screw that both are coupled together by 12-perforate and 15-perforate; (2) 02-connection chi one end is connected on the quiet chi of 01-by screw by the 04-perforate at 14-perforate and the nearly middle part of the quiet chi of 01-, the other end couples together itself and the moving chi of 03-by the 16-perforate at 05-" V " shape groove and the moving chi of 03-middle part, forms complete bevel protractor; (3) bevel protractor is soldered on 08-fixed sleeving through the quiet chi of 01-.
Bevel protractor of the present invention separately or be combined and can realize following three kinds of functions with crop intensity measuring device resistant to lodging.
Near the mensuration of plant height: bevel protractor is vertically fixed on crop groups to be measured, can directly measures the canopy height of crop groups to be measured by the altitude scale on the quiet chi of 01-.
Near the mensuration of field crops lodging angle: bevel protractor is vertically fixed on laid crop root to be measured, and while pulling the moving chi of 03-to make it parallel with lodging stem stalk, the angle showing on 02-connection chi is the angle of plant lodging.
The Accurate Determining of crop intensity resistant to lodging: (1) is fixed to bevel protractor the lower end of crop intensity measuring device resistant to lodging by 08-fixed sleeving; (2) crop intensity measuring device resistant to lodging is vertically fixed on apart from left and right, 0.5 meter, the place ahead of crop base portion to be measured; (3) angle that the moving chi of adjustment 03-moves between chi the quiet chi of 01-and 03-is 45 °, and the screw that is tightened makes it to remain unchanged; (4) device for measuring force on Level Promoting intensity measuring device resistant to lodging, tilts to bevel protractor 03-and moves when chi parallels and stop wait surveyed crop groups stem stalk, reads the numerical value of device for measuring force, and this numerical value is crop groups intensity resistant to lodging.
Claims (4)
1. the invention discloses a kind of bevel protractor for field crops lodging research, its architectural feature is that this bevel protractor mainly comprises quiet chi, moving chi, connects chi and four parts of fixed sleeving.
2. bevel protractor according to claim 1, is characterized in that there is length scale on quiet chi, can measure crop plant height, is used as object of reference when plant lodging measurement of angle; On moving chi, there is length scale, can be used for measuring bevel protractor apart from the horizontal range of crop base portion to be measured.
3. bevel protractor according to claim 1, it is characterized in that connecting chi and have " V " shape groove along long axis direction, the angle value of 0～90 ° is carved with in half portion thereon, by means of moving chi along connecting the formed quiet chi of slip of chi " V " shape groove and the angle of the lodging of the goniometry crop groups stem stalk between moving chi.
4. bevel protractor according to claim 1, is characterized in that quiet chi and moving chi utilize screw that both are coupled together by the perforate of its lower end; Connection chi front end utilizes flat head screw to be connected by the perforate of front end with the perforate of quiet chi middle and lower part, and rear end utilizes flat head screw and moving chi to couple together by the perforate at its " V " groove and moving chi middle part, forms complete bevel protractor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410417702.XA CN104180734B (en) | 2014-08-25 | 2014-08-25 | A kind of plant lodging measurement bevel protractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410417702.XA CN104180734B (en) | 2014-08-25 | 2014-08-25 | A kind of plant lodging measurement bevel protractor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104180734A true CN104180734A (en) | 2014-12-03 |
| CN104180734B CN104180734B (en) | 2018-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410417702.XA Active CN104180734B (en) | 2014-08-25 | 2014-08-25 | A kind of plant lodging measurement bevel protractor |
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| CN (1) | CN104180734B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300253A (en) * | 2014-07-28 | 2016-02-03 | 中国科学院遗传与发育生物学研究所 | Rice tillering angle measuring instrument |
| CN107991228A (en) * | 2017-11-09 | 2018-05-04 | 贾鑫 | A kind of survey tool of selection and breeding corn variety resistant to lodging |
| CN108171615A (en) * | 2017-12-28 | 2018-06-15 | 河南中原光电测控技术有限公司 | A kind of crops lodging disaster monitoring method and its system |
| CN111637826A (en) * | 2020-06-02 | 2020-09-08 | 广西壮族自治区农业科学院 | Sugarcane lodging angle rapid measuring device and using method thereof |
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| CN202242592U (en) * | 2011-10-09 | 2012-05-30 | 周为保 | Novel multifunctional drawing ruler |
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| CN2060734U (en) * | 1990-01-05 | 1990-08-22 | 廖仁德 | Multi-purpose drawing aids |
| CN2163364Y (en) * | 1993-05-29 | 1994-04-27 | 李波 | Mobile angle rule |
| EP0892242A2 (en) * | 1997-07-16 | 1999-01-20 | Hofmann Werkstatt-Technik Gmbh | Two rolls lodging device for vehicle wheel particularly for measuring wheel position |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300253A (en) * | 2014-07-28 | 2016-02-03 | 中国科学院遗传与发育生物学研究所 | Rice tillering angle measuring instrument |
| CN107991228A (en) * | 2017-11-09 | 2018-05-04 | 贾鑫 | A kind of survey tool of selection and breeding corn variety resistant to lodging |
| CN108171615A (en) * | 2017-12-28 | 2018-06-15 | 河南中原光电测控技术有限公司 | A kind of crops lodging disaster monitoring method and its system |
| CN108171615B (en) * | 2017-12-28 | 2021-12-17 | 河南中原光电测控技术有限公司 | Crop lodging disaster monitoring method and system thereof |
| CN111637826A (en) * | 2020-06-02 | 2020-09-08 | 广西壮族自治区农业科学院 | Sugarcane lodging angle rapid measuring device and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104180734B (en) | 2018-03-23 |
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