CN114158332A - Method for manufacturing normal state distribution type layered fertilizer applicator based on corn root distribution - Google Patents

Method for manufacturing normal state distribution type layered fertilizer applicator based on corn root distribution Download PDF

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CN114158332A
CN114158332A CN202111456911.1A CN202111456911A CN114158332A CN 114158332 A CN114158332 A CN 114158332A CN 202111456911 A CN202111456911 A CN 202111456911A CN 114158332 A CN114158332 A CN 114158332A
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fertilizer
distribution
guide pipe
fertilizer guide
root system
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CN114158332B (en
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耿端阳
张祥彩
张银平
王宪良
姚艳春
武继达
朱俊科
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Shandong University of Technology
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C15/00—Fertiliser distributors
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B49/00—Combined machines
    • A01B49/04—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools
    • A01B49/06—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools for sowing or fertilising
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
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Abstract

The invention provides a method for manufacturing a partial normal state distribution type layered fertilizer applicator based on corn root system distribution. The method is characterized in that a fertilizer box is arranged on the upper parts of a subsoiling shovel and a fertilizer guide pipe, the front end of an opening on the lower part of the fertilizer box is aligned with the front part of the fertilizer guide pipe, the fertilizer guide pipe with a rectangular cross section is positioned on the rear part of the subsoiling shovel and is fixedly connected with a handle of the subsoiling shovel, a plurality of equidistant fertilizer guide vanes are arranged on the lower part of the fertilizer guide pipe, and the included angle alpha between each guide vane and the horizontal plane is larger than the friction angle alpha between the fertilizer and each guide vane
Figure DDA0003387989580000011
The rear parts of the guide vanes are parallel and level and are respectively positioned at the fertilization depth. The invention determines the layered fertilization mode of the normal distribution based on the root distribution rule of the corn growth process, and improves the pertinence of fertilizationAnd the utilization rate of fertilizer nutrients. The fertilizer guide plates are subjected to position determination according to the biased normal distribution curve, and the requirement of fertilizer separate application according to needs is met. Along with different crop root distribution characteristics, different fertilizer guide plate structures can be determined, and adaptability to different crops is improved.

Description

Method for manufacturing normal state distribution type layered fertilizer applicator based on corn root distribution
Technical Field
The invention relates to the technical field of agricultural planting, in particular to a method for manufacturing a partial normal state distribution type layered fertilizer applicator based on corn root system distribution.
Background
Layered fertilization is a fertilization method for applying various fertilizers to soils with different depths according to the nutritional requirements of crops at different periods and different tissues. The technology usually combines deep ploughing and deep ploughing to apply slow-acting fertilizer to the bottom layer or the middle layer of the soil, and then applies a small amount of quick-acting fertilizer to the surface layer of the soil during sowing or planting.
In the layered fertilization of corn, most of the base fertilizer is usually applied to a deeper soil layer, a small amount of fertilizer is applied to a shallower soil layer, and sometimes the nutrient in the soil layers with different concentrations is absorbed and utilized by crops by combining with the applied seed fertilizer. Compared with the conventional fertilization mode, the method can improve the fertilizer efficiency and the corn growth condition to a certain extent, however, the current layered fertilization method lacks a fertilization strategy aiming at the distribution characteristics of the corn root system. Under the condition, if layered fertilization can be carried out fully based on the distribution of the corn root system, the accuracy of nutrient supply is expected to be improved, so that the utilization rate of fertilizer nutrients and the growth condition of the corn are further improved.
Disclosure of Invention
The invention aims to provide a method for manufacturing a partial normal state distribution type layered fertilizer applicator based on corn root system distribution aiming at overcoming the technical defects in the prior art, and aims to solve the technical problem that layered fertilization is difficult to carry out according to the distribution characteristics of the corn root system at present.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
a manufacturing method of a partial normal state distribution type layered fertilizer applicator based on corn root system distribution comprises a fertilizer box, a fertilizer distributor, a subsoiler, a fertilizer guide pipe and fertilizer guide vanes, wherein the fertilizer box is positioned on the upper parts of the subsoiler and the fertilizer guide pipe, the front end of an opening at the lower part of the fertilizer box is aligned with the front part of the fertilizer guide pipe, the fertilizer guide pipe with a rectangular cross section is positioned at the rear part of the subsoiler and fixedly connected with a handle of the subsoiler, a plurality of equidistant fertilizer guide vanes are arranged on the lower part of the fertilizer guide pipe, and the included angle alpha between each guide vane and a horizontal plane is larger than the friction angle between the fertilizer and the guide vane
Figure BDA0003387989560000011
The rear parts of the guide vanes are parallel and level and are respectively positioned at the fertilization depth.
As preferred, the corn root system distributes for the change rule of corn root system at the different degree of depth, and its structure is the distribution structure of normal attitude, is mostly 30 cm's actual conditions according to the subsoiling degree of depth, combines fertilization layering quantity requirement, carries out different intervals to the fertilization degree of depth and divides to root system distribution quality when confirming this layer is marked as m respectively1,m2,m3,...,mn-1,mnAnd calculating M ═ M1+m2+m3+…+mn-1+mnAnd the proportion of the total amount of each segment, i.e. Ki＝mi/M，(i＝1,2,......,n-1,n)。
Preferably, the subsoil layer is divided into h according to the fertilizing layering quantity requirement1,h2,h3,...,hn-1,hnA layer forming a set of equidistant parallel horizontal lines; dividing the fertilizer guide tube into n regions along the length direction, wherein the width of each region is li＝kiL, (i ═ 1, 2...., n-1, n), based on the back wall of the fertilizer guide tube, and LiDrawing a vertical line for the length.
Preferably, drawing an oblique line at the position of the lowest fertilizer guide vane by taking a determined angle alpha as an angle through the lowest point K of the rear edge of the fertilizer guide pipe to form A intersected with the drawn vertical line and the drawn horizontal linenBnAnd the front part of the lowest fertilizer guide plate is close to the front edge A of the fertilizer guide pipenFertilizer flow guiding leafThe rear part of the sheet is close to the deepest position B of fertilizationnGo through BnMaking vertical lines, respectively crossing the horizontal lines at B1，B2，B3,.. and Bn-1Then with B1，B2，B3,.. and Bn-1Drawing A parallel tonBnForm A of1B1，A2B2，A3B3,.. and An-1Bn-1。
The invention provides a method for manufacturing a partial normal state distribution type layered fertilizer applicator based on corn root system distribution.
The technical advantages are focused on the following aspects:
1. based on the root distribution condition in the corn growth process and the absorption of all nutrients by the root system, the layered fertilization mode with normal distribution is determined, and the fertilization pertinence and the fertilizer nutrient utilization rate are improved.
2. The fertilizer guide plates are determined according to the bias-normal distribution curve, the requirement that the fertilizer is separately applied according to needs is met, and compared with the traditional layered fertilization, the fertilization control precision and the position accuracy are improved.
3. Along with different crop root distribution characteristics, different fertilizer guide plate structures can be determined, and the adaptability of the technology to different crops is improved.
Drawings
FIG. 1 is a diagram of the distribution law of corn roots;
FIG. 2 is a schematic view showing the state of use of the layered fertilizer applicator made according to the present invention;
in the figure:
1. fertilizer box 2, fertilizer apparatus 3, fertilizer guide pipe 4, subsoiler
5. Fertilizer guide vanes.
Detailed Description
Hereinafter, specific embodiments of the present invention will be described in detail. Well-known structures or functions may not be described in detail in the following embodiments in order to avoid unnecessarily obscuring the details. Approximating language, as used herein in the following examples, may be applied to identify quantitative representations that could permissibly vary in number without resulting in a change in the basic function. Unless defined otherwise, technical and scientific terms used in the following examples have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
A manufacturing method of a partial normal state distribution type fertilizer applicator based on corn root system distribution comprises a fertilizer box, a fertilizer distributor, a subsoiling shovel, a fertilizer guide pipe and a group of fertilizer guide vanes, wherein the fertilizer box is positioned on the upper parts of the subsoiling shovel and the fertilizer guide pipe, the front end of an opening at the lower part of the fertilizer box is aligned with the front part of the fertilizer guide pipe, the fertilizer guide pipe with a rectangular cross section (the length direction is L) is positioned at the rear part of the subsoiling shovel and fixedly connected with a handle of the subsoiling shovel, the lower part of the fertilizer guide pipe is provided with a series of equidistant fertilizer guide vanes, and the included angle alpha between each guide vane and a horizontal plane is larger than the friction angle between the fertilizer and each guide vane
Figure BDA0003387989560000032
The rear parts of the guide vanes are parallel and level and are respectively positioned at the specified fertilizing depth.
Wherein, maize root system distributes for the change rule of maize root system (quality) at the different degree of depth, and its structure is just attitude distribution structure, is mostly 30 cm's actual conditions according to the subsoiling degree of depth, combines fertilization layering quantity requirement (be 5 layer structures in the picture), carries out different intervals to the fertilization degree of depth and divides to root system distribution quality when confirming this layer is recorded as m respectively1,m2,m3,...,mn-1,mnAnd calculating M ═ M1+m2+m3+…+mn-1+mnAnd the proportion of the total amount of each segment, i.e.
Figure BDA0003387989560000031
Dividing a deep scarification soil layer into h according to the requirement of fertilization layering quantity1,h2,h3,...,hn-1,hnA layer forming a set of equidistant parallel horizontal lines; dividing the fertilizer guide tube into n regions along the length direction, wherein the width of each region is li＝kiL, (i ═ 1, 2...., n-1, n), based on the back wall of the fertilizer guide tube, and LiIs longDrawing vertical lines.
Drawing the oblique line of the position of the lowest fertilizer guide vane by taking the determined alpha as an angle and passing through the lowest point K of the back edge of the fertilizer guide pipe to form A intersected with the drawn drooling and the drawn horizontal linenBnAnd the front part of the lowest fertilizer guide plate is close to the front edge A of the fertilizer guide pipenThe rear part of the fertilizer guide vane is close to the position B of the deepest layer of the fertilizer applicationnGo through BnMaking vertical lines, respectively crossing the horizontal lines at B1，B2，B3,.. and Bn-1Then with B1，B2，B3,.. and Bn-1Drawing A parallel tonBnForm A of1B1，A2B2，A3B3,.. and An-1Bn-1。
The embodiments of the present invention have been described in detail, but the description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention. Any modification, equivalent replacement, and improvement made within the scope of the application of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. A manufacturing method of a partial normal state distribution type layered fertilizer applicator based on corn root system distribution comprises a fertilizer box, a fertilizer distributor, a subsoiler, a fertilizer guide pipe and fertilizer guide vanes, and is characterized in that the fertilizer box is positioned on the upper parts of the subsoiler and the fertilizer guide pipe, the front end of an opening at the lower part of the fertilizer box is aligned with the front part of the fertilizer guide pipe, the fertilizer guide pipe with a rectangular cross section is positioned at the rear part of the subsoiler and fixedly connected with a handle of the subsoiler, a plurality of equidistant fertilizer guide vanes are arranged on the lower part of the fertilizer guide pipe, and the included angle alpha between each guide vane and a horizontal plane is larger than the friction angle between the fertilizer and the guide vane
Figure FDA0003387989550000011
The rear parts of the guide vanes are parallel and level and are respectively positioned at the fertilization depth.
2. The method for manufacturing the partial normal state distribution type layered fertilizer applicator based on the corn root system distribution as claimed in claim 1, which is characterized in thatIt is characterized in that the corn root system is distributed to be the change rule of the corn root system at different depths, and the structure is a bias-normal distribution structure, the actual situation that the depth is mostly 30cm according to the subsoiling depth is combined with the requirement of fertilization layering quantity, different intervals are divided according to the fertilization depth, and the distribution quality of the root system is respectively recorded as m1,m2,m3,...,mn-1,mnAnd calculating M ═ M1+m2+m3+…+mn-1+mnAnd the proportion of the total amount of each segment, i.e. Ki＝mi/M，(i＝1,2,......,n-1,n)。
3. The method for manufacturing the partial normal state distribution type layered fertilizer applicator based on the corn root system distribution as claimed in claim 1, wherein the deep soil layer is divided into h according to the fertilizing layering quantity requirement1,h2,h3,...,hn-1,hnA layer forming a set of equidistant parallel horizontal lines; dividing the fertilizer guide tube into n regions along the length direction, wherein the width of each region is li＝kiL, (i ═ 1, 2...., n-1, n), based on the back wall of the fertilizer guide tube, and LiDrawing a vertical line for the length.
4. The method for manufacturing the normal state distribution type layered fertilizer applicator based on the corn root system distribution as claimed in claim 1, wherein the oblique line of the position of the lowest fertilizer guide vane is drawn by using the determined alpha as an angle through the lowest point K of the rear edge of the fertilizer guide pipe, and an A intersecting the drawn vertical line and the drawn horizontal line is formednBnAnd the front part of the lowest fertilizer guide plate is close to the front edge A of the fertilizer guide pipenThe rear part of the fertilizer guide vane is close to the position B of the deepest layer of the fertilizer applicationnGo through BnMaking vertical lines, respectively crossing the horizontal lines at B1，B2，B3,.. and Bn-1Then with B1，B2，B3,.. and Bn-1Drawing A parallel tonBnForm A of1B1，A2B2，A3B3,.. and An-1Bn-1。
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CN117481007A (en) * 2023-10-25 2024-02-02 中国科学院南京土壤研究所 Water, fertilizer and salt integrated efficient cultivation technology for cotton in arid region through drip irrigation

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CN117481007B (en) * 2023-10-25 2024-05-07 中国科学院南京土壤研究所 Water, fertilizer and salt integrated efficient cultivation technology for cotton in arid region through drip irrigation

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