CN102652470A - Sowing method capable of controlling extending directions of corn leaves - Google Patents
Sowing method capable of controlling extending directions of corn leaves Download PDFInfo
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- CN102652470A CN102652470A CN2011102117980A CN201110211798A CN102652470A CN 102652470 A CN102652470 A CN 102652470A CN 2011102117980 A CN2011102117980 A CN 2011102117980A CN 201110211798 A CN201110211798 A CN 201110211798A CN 102652470 A CN102652470 A CN 102652470A
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Abstract
The invention provides a sowing method capable of controlling extending directions of corn leaves, aiming at decreasing the shading area among the corn leaves in case of thick planting, and overcoming the defect of insufficient illumination in case of production increase by thick planting. The sowing method comprises the following steps that: when seeds are sown, the flat surfaces of seeds sown in the soil are arranged on the horizontal plane, the direction of connecting lines between the tips of the seeds and the long-axes middle points of the oval-shaped development of the tops of the seeds are accordant with the extending directions of the corn leaves, or the tips of the seeds sown in the soil vertically face downwards, the tops of the seeds are upward, and a right angle exist between each flat plane of the seeds or the long axis of the oval-shaped development of the top of each seed and the extending direction of each leaf as required by sowing workers. The sowing method has the benefit effects that due to the manual measure, the extending directions of the corn leaves can be controlled, the randomness of the extending directions of the conventionally sown plant leaves can be changed, the insufficient illumination caused by the increase of the leaves density can be avoided, the corn cultivation density can be further improved, and the foundation can be laid for improving the yield per unit of corns.
Description
Technical field
The invention belongs to agrotechnique, be specifically related to the type of seeding of corn.
Background technology
Corn is important cereal crops, and improving the corn per unit area yield is the important topic of corn scientific research.Zea grass family monocotyledon, leaf are one of important nutrition organs of corn, and its major function is to carry out light and effect and transpiration, and leaf is made light and product through photosynthesis, for the growth of each organ of plant provides the material source.The leaf alternate on the stem stalk, every joint only give birth to a slice leaf, and in one plane become two row alternately.In the high-yield culturing measure of corn, rational close planting is one of important measures.Research shows that the planting density of corn directly influences leaf area index, and then influences output.Therefore, leaf area index is the dynamic indicator that can better reflect maize population light and efficient.In certain scope, maize yield improves with the increase of leaf area index.But in corn planting in the past, because every strain maize leaf direction of extension has nothing in common with each other, cause after leaf area is increased to certain limit, hide each other between blade, make individual illumination not enough, photosynthetic efficiency weakens, and output descends on the contrary.
Summary of the invention
The purpose of this invention is to provide a kind of type of seeding of controlled maize leaf direction of extension, reduce, overcome in the dense planting raising the output because of the not enough contradiction that influences output of illumination at the shading area between the maize leaf under the dense planting situation." the maize leaf direction of extension " that proposes among the present invention is meant that the stem stalk with milpa is the center, and both sides blade correspondence stretches the formed angle of formed straight line and ridge (or row) round about.
The present invention takes the lead in finding that maize leaf direction of extension and seed top ellipse projection long axis are perpendicular or is expressed as on the basis of the natural law that parallels with embryo longitudinal profile (through top ellipse projection minor axis and the section of planting point) the applicant; Obtain to control through the embedding state of seed in soil the enlightenment of the direction of extension of plant leaf; Emerge and the field trial checking through indoor, accomplished the present invention.
Type of seeding of the present invention is: during sowing; Make the flat horizontal surface of each seed of broadcasting in soil all be on the horizontal plane; And the desired vane extension direction of the line and the seeder that make the most advanced and sophisticated major axis intermediate point with the top elliptic projection of seed is consistent; The tip that perhaps makes sowing each in soil seed vertically down, the top upwards, and the flat horizontal surface that makes seed the desired vane extension direction of seed top ellipse projection long axis and seeder is rectangular in other words.
The invention has the beneficial effects as follows: be measure through the people; Control field corn vane extension direction; Can effectively improve the randomness of the plant leaf direction of extension that traditional type of seeding causes; Become unordered, avoided for alleviating or avoiding sowing the overstocked blade shading that causes technical support being provided because of the increase of blade density brings illumination not enough in order.Be the further density that increases maize culture, thereby the unit yield that significantly improves corn is laid a good foundation.
The effect test checking
The directed sowing test of indoor seedling dish shows that when with the corn seed endosperm up, seed major axis and ridge (or row) is when sowing under 45 ℃ of horn shape attitudes, after emerging, the direction of extension of the rough leaf of all seedlings all with capable to being 45 ℃ of angles; After plant gets into the shooting stage, stem stalk both sides vane extension direction all with capable to being 45 ℃ of angles, the control rate of plant leaf direction of extension reaches 100%.
Field trial shows; The processing of directed sowing; After emerging, the plant number that direction of extension of rough leaf and ridge (OK) is 45 ℃ of angles accounts for 93% of investigation plant sum, after plant gets into the shooting stage; It is 92% that the plant that vane extension direction and ridge (OK) are 45 ℃ of angles is counted proportion, promptly this moment the vane extension direction control rate reach 92%.There is the vane extension direction of 8% seedling that deflection has to a certain degree taken place; Its reason mainly contains 2 points: the one, under the field condition, during the seed earthing, (cover on seed) for various reasons like large clod; Make the seed dislocation, thereby changed the vane extension direction of seedling.The 2nd, run into the obstruction of solid soil block or stone etc. when emerging, cause the dislocation of seedling leaf direction of extension.Therefore, if can note resolving this two influence factors, the control rate of plant leaf direction of extension also can further improve.In the processing of sowing (being peasant's conventional seed planting method) at random; Plant leaf direction of extension and ridge (or row) angle roughly is the percentage average out to 14.6% that 45 ℃ of plant numbers account for investigation plant sum, shows the randomness and the randomness of plant leaf direction of extension.
Description of drawings
Fig. 1 is on the horizontal plane for the flat horizontal surface of seed, and endosperm up, seed is most advanced and sophisticated and the line of top elliptic projection major axis intermediate point and ridge are 45 when spending to little angle, the direction of extension figure of plant leaf.
Fig. 2 is on the horizontal plane for the flat horizontal surface of seed, and endosperm up, seed is most advanced and sophisticated and the line of top elliptic projection major axis intermediate point and ridge are 90 when spending to angle, the direction of extension figure of plant leaf.
Fig. 3 be the seed tip vertically downward, the top up, seed top long axis (or flat horizontal surface) and ridge (or row) when little angle is 45 ℃, plant leaf direction of extension figure.
Fig. 4 be the seed tip vertically downward, the top up, seed top long axis (or flat horizontal surface) and ridge (or row) when paralleling, plant leaf direction of extension figure.
Embodiment
Embodiment 1
Consult Fig. 1; The by artificial seeding; The seed flat horizontal surface is near on the horizontal plane; Endosperm up, seed is most advanced and sophisticated and the line (or embryo longitudinal profile) of top major axis intermediate point and the little angle in ridge (or row) are 45 ℃, and the little angle of vane extension direction of the plant that grows and ridge (or row) is 45 ℃.Sequence number 1 is that seed, sequence number 2 are furrow for blade, sequence number 3 for ridge platform, sequence number 4 among Fig. 1.
Embodiment 2
Consult Fig. 2; The by artificial seeding; The seed flat horizontal surface is near on the horizontal plane, and endosperm up, seed is most advanced and sophisticated and the angle of the line (or embryo longitudinal profile) of top major axis intermediate point and ridge (or row) is 90 ℃, and vane extension direction of the plant that grows and ridge (or row) angle is 90 ℃.Sequence number 1 is that seed, sequence number 2 are furrow for blade, sequence number 3 for ridge platform, sequence number 4 among Fig. 2.
Embodiment 3
Consult Fig. 3, the by artificial seeding, the seed tip vertically downward, the top up, the little angle of seed top long axis (or flat horizontal surface) and ridge (or row) is 45 ℃, the angle of the vane extension direction of the plant that grows and ridge (or capable) is 45 ℃.Among Fig. 3, sequence number 1 is that seed, sequence number 2 are furrow for blade, sequence number 3 for ridge platform, sequence number 4.
Consult Fig. 4, the by artificial seeding, the seed tip vertically downward, the top up, seed top long axis (or flat horizontal surface) and ridge (or row) is parallel, the angle of the vane extension direction of the plant that grows and ridge (or capable) all is 90 ℃.Among Fig. 4, sequence number 1 is that seed, sequence number 2 are furrow for blade, sequence number 3 for ridge platform, sequence number 4.
Claims (1)
1. the type of seeding of a controlled maize leaf direction of extension; It is characterized in that: during sowing; Make the flat horizontal surface of each seed of broadcasting in soil all be on the horizontal plane; And the desired vane extension direction of the line and the seeder that make the most advanced and sophisticated major axis intermediate point with the top elliptic projection of seed is consistent; The tip that perhaps makes sowing each in soil seed vertically down, the top upwards, and the flat horizontal surface that makes seed the desired vane extension direction of seed top ellipse projection long axis and seeder is rectangular in other words.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102117980A CN102652470A (en) | 2011-07-27 | 2011-07-27 | Sowing method capable of controlling extending directions of corn leaves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102117980A CN102652470A (en) | 2011-07-27 | 2011-07-27 | Sowing method capable of controlling extending directions of corn leaves |
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| Publication Number | Publication Date |
|---|---|
| CN102652470A true CN102652470A (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102117980A Pending CN102652470A (en) | 2011-07-27 | 2011-07-27 | Sowing method capable of controlling extending directions of corn leaves |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105660003A (en) * | 2014-11-19 | 2016-06-15 | 天津富康农业开发有限公司 | Directional corn seeding machine |
| CN105659985A (en) * | 2014-11-19 | 2016-06-15 | 天津富康农业开发有限公司 | Sowing device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060006A (en) * | 1991-09-19 | 1992-04-08 | 段晋宏 | The directed type of seeding of a kind of corn |
| CN1148461A (en) * | 1996-01-08 | 1997-04-30 | 冉茂武 | Method for prepdicting spreading-direction of maize leaf-blade |
| CN101663935A (en) * | 2008-09-04 | 2010-03-10 | 郭玉富 | Corn directional seeding method, directional seed block manufacturing equipment and device for seeding seed blocks |
| US7814849B1 (en) * | 2009-02-23 | 2010-10-19 | Mcomber Dean C | Seed tube for an agricultural planter |
-
2011
- 2011-07-27 CN CN2011102117980A patent/CN102652470A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060006A (en) * | 1991-09-19 | 1992-04-08 | 段晋宏 | The directed type of seeding of a kind of corn |
| CN1148461A (en) * | 1996-01-08 | 1997-04-30 | 冉茂武 | Method for prepdicting spreading-direction of maize leaf-blade |
| CN101663935A (en) * | 2008-09-04 | 2010-03-10 | 郭玉富 | Corn directional seeding method, directional seed block manufacturing equipment and device for seeding seed blocks |
| US7814849B1 (en) * | 2009-02-23 | 2010-10-19 | Mcomber Dean C | Seed tube for an agricultural planter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105660003A (en) * | 2014-11-19 | 2016-06-15 | 天津富康农业开发有限公司 | Directional corn seeding machine |
| CN105659985A (en) * | 2014-11-19 | 2016-06-15 | 天津富康农业开发有限公司 | Sowing device |
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Application publication date: 20120905 |