CN112166881A - Iron tailing seedling raising tray and manufacturing method thereof - Google Patents

Iron tailing seedling raising tray and manufacturing method thereof Download PDF

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Publication number
CN112166881A
CN112166881A CN202011031763.4A CN202011031763A CN112166881A CN 112166881 A CN112166881 A CN 112166881A CN 202011031763 A CN202011031763 A CN 202011031763A CN 112166881 A CN112166881 A CN 112166881A
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China
Prior art keywords
seedling
seedling tray
tray
weight percentage
iron
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CN202011031763.4A
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Chinese (zh)
Inventor
徐久升
许灏
高江
赵虹
陈晓寒
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Ansteel Mining Co Ltd
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Ansteel Mining Co Ltd
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Priority to CN202011031763.4A priority Critical patent/CN112166881A/en
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/02Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
    • A01G9/029Receptacles for seedlings
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G22/00Cultivation of specific crops or plants not otherwise provided for
    • A01G22/20Cereals
    • A01G22/22Rice

Abstract

The invention belongs to the technical field of rice field transplanting in soda saline-alkali land, and particularly relates to an iron tailing seedling raising tray and a manufacturing method thereof. The iron tailing rice seedling throwing disc has the advantages that the rice seedlings are directly sown without using additional soil, the seedling disc body directly grows seedlings, the seedling disc is divided into fragments to be thrown into a rice field along with the seedlings when the iron tailing rice seedling throwing disc is used, the content of soil silicon elements and soil organic matters can be improved by using materials, the number of the seedlings in a single pot is large, the seedlings cannot fall down after being thrown, the use is convenient, the seedling throwing efficiency is high, the problem that the rice field cannot be mechanically transplanted is solved, and a new perfect rice seedling throwing high-yield planting mode is established.

Description

Iron tailing seedling raising tray and manufacturing method thereof
Technical Field
The invention belongs to the technical field of rice field transplanting in soda saline-alkali soil, and particularly relates to an iron tailing seedling raising tray and a manufacturing method thereof.
Background
The soda saline-alkali soil is high in salt content and strong in alkalinity, soil pores are blocked and sealed by expanding and dispersing after being soaked in water, underground rice root systems need nutrients and oxygen for metabolism, produced harmful substances cannot be exchanged and circulated in time, and the substances are gathered at roots, so that the soil environment of the roots is deteriorated, and the roots of the rice are damaged, cannot grow normally and even die. Through experimental research and production practice verification, the growth environment of the rice roots can be improved through shallow transplanting and seedling throwing, and particularly in the seedling revival stage, the seedling survival rate is improved, and the effect of preventing red blight is very obvious. The front transplanting is easy to float seedlings, and the seedling throwing effect is not good. Production practice proves that the first two or three years of the newly-developed saline-alkali land rice field is suitable for seedling throwing, and better yield results can be obtained.
The soda saline-alkali soil is difficult to grow seedlings, the seedling stage is easily damaged by salt and alkali, and the key is to prevent and control the salt and alkali damage during seedling growing. Aiming at the difficult problem, experimental research and practical verification are given, and the seedling raising tray can be improved to prevent and control saline-alkali damage seedlings.
Because saline-alkali soil seedling throwing has own special requirements, firstly, the seedling throwing machine needs to carry more soil and is more than 4 times of that of a common seedling raising tray, and secondly, the quantity of seedlings in each pot needs to be more, and the quantity of the seedlings is more than 30. At present, no seedling raising tray suitable for saline-alkali soil seedling throwing exists, the number of seedlings is only 5-10 when each pot of the existing seedling raising tray is provided with less soil, the seedlings cannot stand up after seedling throwing, the seedlings float seriously after irrigation, the existing seedling raising tray is not suitable for soda saline-alkali soil, and the development of the seedling raising tray suitable for saline-alkali soil seedling throwing is necessary and urgent, so that the significance is great.
Disclosure of Invention
The invention aims to provide an iron tailing seedling raising tray and a manufacturing method thereof.
The purpose of the invention is realized by the following technical scheme:
the iron tailing seedling raising tray is characterized by comprising a seedling tray body, a plurality of seeding pits arranged on the seedling tray body, a seedling tray surface layer arranged on the lower surface of the seedling tray body, and a seedling tray covering plate arranged on the upper surface of the seedling tray body, wherein the seeding pits are M rows by N columns, and are cylindrical.
The M line is 9-10 lines.
The N columns are 16 columns.
The surface layer of the seedling tray is a plant fiber wrapping layer, and the surface layer of the seedling tray is a square groove with the wall thickness of 2-3mm, the length of 550-600 mm, the width of 360-400 mm and the height of 27-30 mm.
The seedling tray body is a seedling tray main body made of iron tailings added with plant fibers, cellulose, calcium superphosphate, ammonium sulfate, paclobutrazol and other materials, and is a cuboid with the length of 540-.
The seeding pits are cylinders with the diameter of 25-30 mm and the depth of 3-4 mm, and the distance between every two seeding pits is 4-5 mm.
The seedling tray covering plate is a hexahedral thin plate added with plant fibers and cellulose by iron tailings, and is a flat plate with the length of 360-400 mm, the width of 275-300 mm and the height of 6-10 mm.
A manufacturing method of an iron tailing seedling raising tray is characterized by comprising the following steps:
(1) manufacturing a seedling tray surface layer 1:
firstly, selecting newly produced rice straws, cutting the rice straws into the rice straws with the length of 30-50 mm, and mechanically extruding and stirring the rice straws to prepare soft fibrous materials;
adding carboxymethyl cellulose pulp paste according to 3-5% of the weight of the fibrous material, wherein the water content of the carboxymethyl cellulose pulp paste is 80-86%, and fully mixing;
placing 730-800 g of fiber material mixed with the carboxymethyl cellulose pulp paste in a seedling tray surface layer pressing mould, scraping the material in the mould, pressing by using the mould, wherein the pressing weight reaches 80-90 kg, and completing the seedling tray surface layer manufacturing;
(2) making a seedling tray body and a seeding pit:
sieving the iron tailings, removing particles with the particle size larger than 3mm, and airing the sieved iron tailings;
adding auxiliary materials according to the following weight percentage, wherein the weight percentage of the iron tailings is 65-70%, the weight percentage of the straw plant fiber is 30-35%, the weight percentage of the carboxymethyl cellulose is 1-1.2%, the weight percentage of the calcium superphosphate is 0.15-0.2%, the weight percentage of the ammonium sulfate is 0.1-0.15%, and the weight percentage of the paclobutrazol is 0.001-0.0015%;
thirdly, adding water 6-7 times of the weight of the carboxymethyl cellulose into the carboxymethyl cellulose to prepare paste, adding 200-300 times of water into the paclobutrazol to dilute the paste, and then uniformly mixing the paste with the iron tailings, the plant fiber, the calcium superphosphate and the ammonium sulfate;
fourthly, placing the surface layer of the seedling tray in a seedling tray body mould, then placing 6500 and 7000 grams of seedling tray body materials which are mixed quantitatively into the surface layer of the seedling tray, paving and scraping, then pressing by using the seedling tray body mould, wherein the pressed weight is 80-90 kilograms, and manufacturing the seedling tray body and the sowing pit is finished;
(3) manufacturing a seedling tray covering plate:
adding auxiliary materials according to the following weight percentage, wherein the weight percentage of iron tailings is 65-70%, the weight percentage of straw plant fiber is 30-35%, and the weight percentage of carboxymethyl cellulose is 1-1.2%, adding water according to the weight 6-7 times of the lifting capacity to prepare paste, and then uniformly mixing the paste with the iron tailings and the plant fiber;
secondly, putting 900 g of the quantitative seedling tray covering plate mixing material 800-;
(4) demolding:
and (4) demoulding the newly manufactured seedling tray body and seedling tray cover plate finished product, placing the seedling tray body and the seedling tray cover plate finished product in a specified place for storage, and well protecting the seedling tray body and the seedling tray cover plate against rain and moisture.
The invention has the advantages that:
(1) the iron tailing seedling raising tray and the manufacturing method have the advantages that the main raw materials used by the iron tailing seedling raising tray are magnetic separation iron tailings and rice straws, the occupied area of the iron tailings and the source of soil for seedling raising are reduced, the damage of soil taking for seedling raising to cultivated land is reduced, the environment pollution caused by rice straw burning treatment is reduced, and the harmless cycle that the iron tailings and the rice straws return to nature is realized;
(2) according to the iron tailing seedling raising tray and the manufacturing method, the main component of the used iron tailing is silicon dioxide, the content of silicon element in soil can be increased after the iron tailing seedling raising tray is used, the effect of supplementing the silicon element is achieved, and the disease resistance and lodging resistance of rice are improved;
(3) the iron tailing seedling raising tray and the manufacturing method are convenient to use, seeds are directly sown in the seedling tray sowing pits, sowing operation can be completed by covering the seedling tray with the cover plate, the covering is uniform, the problems of watering and seed exposure and no seedling emergence can be caused, operation links such as seedling raising soil preparation are not needed, the seedling raising operation efficiency is improved, and the seedling raising cost is reduced;
(4) according to the iron tailing seedling raising tray and the manufacturing method thereof, each seeding pit of the seedling raising tray can accommodate 25-35 rice seeds, the survival rate of the seedlings can be improved after seedling throwing, the basic seedling quantity base number of the seedling throwing is ensured, and a guarantee effect is provided for stable yield and high yield;
(5) the iron tailing seedling raising tray and the manufacturing method solve the problem of low survival rate of rice seedlings after rice seedling throwing, can realize high yield, effectively solve the problem of land parcel planting which cannot be mechanically transplanted, promote the yield increase of planters and increase income, and provide an efficient planting method for rice fields which cannot be mechanically transplanted.
Drawings
Fig. 1 is a front plan view of the iron tailing seedling raising tray.
Fig. 2 is a sectional view of the iron tailing seedling raising tray of the invention.
Detailed Description
The following further describes the embodiments of the present invention with reference to the drawings.
As shown in fig. 1 and 2, the iron tailing seedling raising tray of the invention is characterized by comprising a seedling tray body 2, a plurality of planting pits 3 arranged on the seedling tray body 2, a seedling tray surface layer 1 arranged on the lower surface of the seedling tray body 2, and a seedling tray covering plate 4 arranged on the upper surface of the seedling tray body 2, wherein the planting pits 3 are M rows × N columns, and the planting pits 3 are cylindrical.
The M line is 9-10 lines.
The N columns are 16 columns.
The seedling tray surface layer 1 is a plant fiber wrapping layer, and the seedling tray surface layer 1 is a square groove with the wall thickness of 2-3mm, the length of 550-600 mm, the width of 360-400 mm and the height of 27-30 mm.
The seedling tray body 2 is a seedling tray main body made of iron tailings added with plant fibers, cellulose, calcium superphosphate, ammonium sulfate, paclobutrazol and other materials, and the seedling tray body 2 is a cuboid with the length of 540-.
The sowing pits 3 are cylinders with the diameter of 25-30 mm and the depth of 3-4 mm, and the distance between every two sowing pits 3 is 4-5 mm.
The seedling tray cover plate 4 is a hexahedral thin plate added with plant fibers and cellulose by iron tailings, and the seedling tray cover plate 4 is a flat plate with the length of 360-400 mm, the width of 275-300 mm and the height of 6-10 mm.
A manufacturing method of an iron tailing seedling raising tray is characterized by comprising the following steps:
(1) manufacturing a seedling tray surface layer 1:
firstly, selecting newly produced rice straws, cutting the rice straws into the rice straws with the length of 30-50 mm, and mechanically extruding and stirring the rice straws to prepare soft fibrous materials;
adding carboxymethyl cellulose pulp paste according to 3-5% of the weight of the fibrous material, wherein the water content of the carboxymethyl cellulose pulp paste is 80-86%, and fully mixing;
placing 800 g of 730-plus fiber material mixed with the carboxymethyl cellulose pulp paste in a seedling tray surface layer pressing mould, scraping the material in the mould, pressing by using the mould, wherein the pressing weight reaches 80-90 kg, and finishing the production of the seedling tray surface layer 1;
(2) making a seedling tray body 2 and a seeding pit 3:
sieving the iron tailings, removing particles with the particle size larger than 3mm, and airing the sieved iron tailings;
adding auxiliary materials according to the following weight percentage, wherein the weight percentage of the iron tailings is 65-70%, the weight percentage of the straw plant fiber is 30-35%, the weight percentage of the carboxymethyl cellulose is 1-1.2%, the weight percentage of the calcium superphosphate is 0.15-0.2%, the weight percentage of the ammonium sulfate is 0.1-0.15%, and the weight percentage of the paclobutrazol is 0.001-0.0015%;
thirdly, adding water 6-7 times of the weight of the carboxymethyl cellulose into the carboxymethyl cellulose to prepare paste, adding 200-300 times of water into the paclobutrazol to dilute the paste, and then uniformly mixing the paste with the iron tailings, the plant fiber, the calcium superphosphate and the ammonium sulfate;
fourthly, placing the surface layer 1 of the seedling tray in a seedling tray mould, then placing 6500 and 7000 grams of seedling tray materials which are mixed quantitatively in the surface layer 1 of the seedling tray, paving and scraping, then pressing by using the seedling tray mould, wherein the pressed weight is 80-90 kilograms, and completing the manufacture of the seedling tray 2 and the seeding pit 3;
(3) manufacturing a seedling tray covering plate 4:
adding auxiliary materials according to the following weight percentage, wherein the weight percentage of iron tailings is 65-70%, the weight percentage of straw plant fiber is 30-35%, and the weight percentage of carboxymethyl cellulose is 1-1.2%, adding water according to the weight 6-7 times of the lifting capacity to prepare paste, and then uniformly mixing the paste with the iron tailings and the plant fiber;
secondly, putting 900 g of the quantitative seedling tray covering plate mixing material 800-;
(4) demolding:
and (3) demoulding the newly manufactured finished product of the seedling tray body 2 and the seedling tray cover plate 4, placing the seedling tray body and the seedling tray cover plate in a specified place for storage, and well protecting the seedling tray body and the seedling tray cover plate in a rainproof and moisture-proof way.
Example (b):
designing the shape and the specific size of an iron tailing rice seedling raising tray: the surface layer 1 of the seedling tray is a rectangular groove with the wall thickness of 3mm, the length of 550mm, the width of 360 mm and the height of 30mm, and is wrapped outside the seedling tray body 2; the seedling tray body 2 is a cuboid with the length of 544 mm, the width of 354 mm and the height of 27 mm, and 152 sowing pits 3 are arranged on the upper surface of the cuboid; the seeding pit 3 is a cylinder with the diameter of 30mm and the depth of 3 mm; the seedling tray covering plate 4 is a hexahedral thin plate with the length of 360 mm, the width of 275mm and the height of 10 mm, and one iron tailing rice seedling tray needs to be covered with 2 seedling tray covering plates 4.
Preparing production raw materials:
(1) preparing the seedling tray surface layer 1 raw materials:
firstly, selecting newly produced rice straws, cutting the rice straws into the rice straws with the length of 30-50 mm, and mechanically extruding and stirring the rice straws to prepare soft fibrous materials;
adding carboxymethyl cellulose pulp paste according to 3-5% of the weight of the fibrous material, wherein the water content of the carboxymethyl cellulose pulp paste is 80-86%, and fully mixing;
(2) preparing raw materials of a seedling tray body 2 and a seeding pit 3:
sieving the iron tailings, removing particles with the particle size larger than 3mm, and airing the sieved iron tailings;
② adding auxiliary materials according to the following weight percentage, the weight percentage of the iron tailings is 65-70%, the weight percentage of the straw plant fiber is 30-35%, the weight percentage of the carboxymethyl cellulose is 1-1.2%, the weight percentage of the calcium superphosphate is 0.15-0.2%, the weight percentage of the ammonium sulfate is 0.1-0.15%, and the weight percentage of the paclobutrazol is 0.001-0.0015%. Adding water with the weight 6-7 times of that of the carboxymethyl cellulose to prepare paste, and then uniformly mixing the paste with the other materials;
(3) preparing seedling tray cover plate 4 raw materials:
adding auxiliary materials according to the following weight percentage, wherein the weight percentage of the iron tailings is 65-70%, the weight percentage of the straw plant fiber is 30-35%, and the weight percentage of the carboxymethyl cellulose is 1-1.2%;
secondly, adding water into the carboxymethyl cellulose according to the weight of 6 to 7 times of the weight of the carboxymethyl cellulose to prepare paste, and then uniformly mixing the paste with the iron tailings and the plant fiber.
(III) mold preparation
Firstly, a seedling tray surface layer mold: is made of an iron plate with the thickness of 20mm and consists of an upper pressing plate and a lower square groove; the pressing plate is 606 mm long, 416 mm wide and 20mm thick, two operating handles are arranged on the sample plate, and round steel with the diameter of 20mm is manufactured; the length of the inner groove body of the lower square groove is 610 mm, the width is 420 mm, the depth is 50mm, and the length of the outer groove body is 650 mm, the width is 460 mm, and the height is 70 mm;
seedling tray body and seeding pit mould: the device is made of an iron plate with the thickness of 20mm and consists of an upper pressing plate and a lower square groove; the length of the pressure plate is 546 mm, the width of the pressure plate is 354 mm, the thickness of the pressure plate is 20mm, two operating handles are arranged on the sample plate, the sample plate is made of round steel with the diameter of 20mm, cylindrical bulges with the diameter of 30mm and the height of 3mm are arranged on the lower surface of the pressure plate, and the distance between the bulges is 4-5 mm; the length of the inner groove body of the lower square groove is 550mm, the width is 360 mm, the depth is 50mm, and the length of the outer groove is 590 mm, the width is 400mm, and the height is 70 mm;
thirdly, covering the plate mould by the seedling tray: the device is made of an iron plate with the thickness of 20mm and consists of an upper pressing plate and a lower square groove; the pressing plate is 354 mm long, 271 mm wide and 20mm thick, two operating handles are arranged on the sample plate, and round steel with the diameter of 20mm is manufactured; the length of the internal groove body of the lower square groove is 360 mm, the width is 275mm, the depth is 50mm, and the length of the external groove is 440 mm, the width is 315 mm, and the height is 70 mm.
(IV) producing and manufacturing a seedling raising tray:
(1) production site and other requirements: the production site is a spacious factory building, the ground is smooth, the production mold is convenient to place, and the area is more than 80 square meters; the production site is charged with water and electricity, and is provided with a flat plate vibrator, a spade and other tools, a small mixer with the volume of 0.3 cubic meter is arranged, and the number of production workers is not less than 3;
(2) the preparation requirements of the die are as follows: determining the number of required dies according to the production scale, wherein 3 workers are a production manufacturing team and need 30 upper pressing dies, 90 middle square frames and 90 lower die bottom plates; one team can process and produce 20-25 seedling raising trays per hour;
(3) a seedling raising tray manufacturing process:
cleaning a production site, and placing 90 mold bottom plates, wherein each row is 30, the distance between every two rows is 0.2-0.3 m, the distance between every two rows is 1-1.2 m, and 3 rows are needed to be placed;
preparing the raw materials of the seedling tray surface layer 1: selecting newly produced rice straws, cutting the straws into the lengths of 30-50 mm, and mechanically extruding and stirring the straws to prepare soft fibrous materials; adding carboxymethyl cellulose pulp paste according to 3-5% of the weight of the fibrous material, wherein the water content of the carboxymethyl cellulose pulp paste is 80-86%, and fully mixing;
pressing a seedling tray surface layer 1: placing 730-800 g of fiber material mixed with the carboxymethyl cellulose paste into a seedling tray surface layer pressing mold, scraping the material in the mold, pressing by using the mold, wherein the pressing weight reaches 80-90 kg, and completing the preparation of the seedling tray surface layer 1;
preparing the raw materials of the seedling tray body 2 and the seeding pit 3: sieving the iron tailings, removing particles with the particle size larger than 3mm, and airing the sieved iron tailings; adding auxiliary materials according to the following weight percentage, wherein the weight percentage of the iron tailings is 65-70%, the weight percentage of the straw plant fiber is 30-35%, the weight percentage of the carboxymethyl cellulose is 1-1.2%, the weight percentage of the calcium superphosphate is 0.15-0.2%, the weight percentage of the ammonium sulfate is 0.1-0.15%, and the weight percentage of the paclobutrazol is 0.001-0.0015%; adding water with the weight 6-7 times of that of the carboxymethyl cellulose to prepare paste, and then uniformly mixing the paste with the other materials;
fifth, pressing the seedling tray body 2 and the seeding pit 3: placing the surface layer 1 of the seedling tray in a seedling tray mould, then placing 6500-7000 g of mixed seedling tray material, spreading and scraping, then pressing by using the seedling tray mould, wherein the pressing weight is 80-90 kg, and completing the manufacture of a seedling tray 2 and a seeding pit 3;
sixthly, arranging seedling tray cover plate 4 raw materials: adding auxiliary materials according to the following weight percentage, wherein the weight percentage of the iron tailings is 65-70%, the weight percentage of the straw plant fiber is 30-35%, and the weight percentage of the carboxymethyl cellulose is 1-1.2%, adding water according to the weight 6-7 times of the lifting capacity to prepare paste, and then uniformly mixing the paste with the iron tailings and the plant fiber;
pressing the seedling tray cover plate 4: placing 800-900 g seedling tray covering plate mixed material into a seedling tray covering plate mold, paving and scraping, and pressing by using the mold, wherein the pressing weight is 60-70 kg, so as to finish the manufacturing of the seedling tray covering plate;
and (8) demoulding the newly manufactured finished products of the seedling tray body 2 and the seedling tray cover plate 4, placing the finished products in a specified place for storage, and performing rain-proof and moisture-proof protection.
Use method of (V) iron tailing rice seedling raising tray
(1) Selecting a seedling raising greenhouse, and preparing for cleaning a seedling raising land;
(2) flattening the seedling raising ground, and paving a perforated mulching film;
(3) placing the seedling tray bodies 2 on the perforated mulching film in a steam mode, placing two rows in the width direction, and leaving an operation road with the distance of 0.4-0.5 m between every two rows;
(4) carrying out awn removal and coating treatment on rice seeds;
(5) the coated seeds are scattered on the seedling tray body 2, the seeds are scraped into the sowing pits 3 by the straight rods, and the excess seeds are collected and can be reused;
(6) covering the iron tailing rice seedling raising tray which is completely sown by using seedling tray covering plates 4, wherein two seedling tray covering plates are required for one seedling tray, and the edges of the two seedling tray covering plates are required to be aligned;
(7) covering the non-woven fabric on the seedling tray covering plate 4 to spray water; the seedling tray has the functions of water absorption and moisture retention, water is regularly sprayed to retain moisture according to the dryness and wetness of the seedling tray, and the rest is the same as the conventional seedling raising;
(8) after the seedlings grow to three leaves, the seedlings can be used for throwing seedlings and transplanting; the seedling roots are tied into the seedling tray body, and the seedling tray is directly broken according to the area of the seedling roots for use during seedling throwing.
Sixthly, seedling throwing and transplanting water and fertilizer management:
(1) water can not be lack, and the filling depth is 3-5 cm;
(2) the fertilizing amount is strictly controlled, the fertilizing amount is reduced by 15 to 20 percent compared with the normal transplanting and fertilizing, and the planned fertilizer is completely applied 5 days before 7 months.
According to the iron tailing seedling raising tray and the manufacturing method thereof, the seedling raising tray does not need to be added with seedling raising soil, and has the advantages of convenience in use, simplicity and easiness in operation, no falling of single-pot seedlings after multiple seedling throwing, convenience in use, high seedling throwing efficiency and the like, the problem that the rice field cannot be planted mechanically is solved, and a new rice seedling throwing high-yield planting mode is started.

Claims (8)

1. The iron tailing seedling raising tray is characterized by comprising a seedling tray body, a plurality of seeding pits arranged on the seedling tray body, a seedling tray surface layer arranged on the lower surface of the seedling tray body, and a seedling tray covering plate arranged on the upper surface of the seedling tray body, wherein the seeding pits are M rows multiplied by N columns, and the seeding pits are cylindrical.
2. The iron tailings seedling raising tray of claim 1, wherein the row M is 9-10.
3. The iron tailing seedling raising tray as claimed in claim 1, wherein the N columns are 16 columns.
4. The iron tailing seedling raising tray as claimed in claim 1, characterized in that the surface layer of the seedling tray is a plant fiber wrapping layer, and the surface layer of the seedling tray is a square groove with the wall thickness of 2-3mm, the length of 550-600 mm, the width of 360-400 mm and the height of 27-30 mm.
5. The iron tailing seedling raising tray as claimed in claim 1, wherein the tray body is a tray body made of iron tailing with plant fiber, cellulose, calcium superphosphate, ammonium sulfate, paclobutrazol and other materials, and the tray body is a cuboid with a length of 540-600 mm, a width of 350-400 mm and a height of 25-28 mm.
6. The iron tailing seedling raising tray according to claim 1, characterized in that the sowing pits are cylinders with the diameter of 25-30 mm and the depth of 3-4 mm, and the distance between every two sowing pits is 4-5 mm.
7. The iron tailing seedling raising tray as claimed in claim 1, wherein the seedling tray covering plate is a hexahedral thin plate with iron tailing added with plant fiber and cellulose, and the seedling tray covering plate is a flat plate with the length of 360-400 mm, the width of 275-300 mm and the height of 6-10 mm.
8. A manufacturing method of an iron tailing seedling raising tray is characterized by comprising the following steps:
(1) manufacturing a seedling tray surface layer 1:
firstly, selecting newly produced rice straws, cutting the rice straws into the rice straws with the length of 30-50 mm, and mechanically extruding and stirring the rice straws to prepare soft fibrous materials;
adding carboxymethyl cellulose pulp paste according to 3-5% of the weight of the fibrous material, wherein the water content of the carboxymethyl cellulose pulp paste is 80-86%, and fully mixing;
placing 730-800 g of fiber material mixed with the carboxymethyl cellulose pulp paste in a seedling tray surface layer pressing mould, scraping the material in the mould, pressing by using the mould, wherein the pressing weight reaches 80-90 kg, and completing the seedling tray surface layer manufacturing;
(2) making a seedling tray body and a seeding pit:
sieving the iron tailings, removing particles with the particle size larger than 3mm, and airing the sieved iron tailings;
adding auxiliary materials according to the following weight percentage, wherein the weight percentage of the iron tailings is 65-70%, the weight percentage of the straw plant fiber is 30-35%, the weight percentage of the carboxymethyl cellulose is 1-1.2%, the weight percentage of the calcium superphosphate is 0.15-0.2%, the weight percentage of the ammonium sulfate is 0.1-0.15%, and the weight percentage of the paclobutrazol is 0.001-0.0015%;
thirdly, adding water 6-7 times of the weight of the carboxymethyl cellulose into the carboxymethyl cellulose to prepare paste, adding 200-300 times of water into the paclobutrazol to dilute the paste, and then uniformly mixing the paste with the iron tailings, the plant fiber, the calcium superphosphate and the ammonium sulfate;
fourthly, placing the surface layer of the seedling tray in a seedling tray body mould, then placing 6500 and 7000 grams of seedling tray body materials which are mixed quantitatively into the surface layer of the seedling tray, paving and scraping, then pressing by using the seedling tray body mould, wherein the pressed weight is 80-90 kilograms, and manufacturing the seedling tray body and the sowing pit is finished;
(3) manufacturing a seedling tray covering plate:
adding auxiliary materials according to the following weight percentage, wherein the weight percentage of iron tailings is 65-70%, the weight percentage of straw plant fiber is 30-35%, and the weight percentage of carboxymethyl cellulose is 1-1.2%, adding water according to the weight 6-7 times of the lifting capacity to prepare paste, and then uniformly mixing the paste with the iron tailings and the plant fiber;
secondly, putting 900 g of the quantitative seedling tray covering plate mixing material 800-;
(4) demolding:
and (4) demoulding the newly manufactured seedling tray body and seedling tray cover plate finished product, placing the seedling tray body and the seedling tray cover plate finished product in a specified place for storage, and well protecting the seedling tray body and the seedling tray cover plate against rain and moisture.
CN202011031763.4A 2020-09-27 2020-09-27 Iron tailing seedling raising tray and manufacturing method thereof Pending CN112166881A (en)

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