CN101697687A - Plastic film mulching cultivation method suitable for autumn-planted peanuts in subtropical regions - Google Patents
Plastic film mulching cultivation method suitable for autumn-planted peanuts in subtropical regions Download PDFInfo
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Abstract
The invention discloses a plastic film mulching cultivation method suitable for autumn-planted peanuts in subtropical regions. The method is as follows: carrying out soil preparation as soon as possible after harvesting previous crops, combining the oil preparation with fertilization together, and adopting the one-time fertilization way; firstly mulching a film for covering the soil before seeding, and utilizing the high temperature in late summer or early autumn in the subtropical regions for killing partial pathogens, weeds and pests in the soil; adopting the technology of firstly punching and then seeding, and seeding peanut seeds in holes without covering the seeds in the plastic film for preventing the high temperature from baking the seeds; adopting the technology of sequentially covering the soil, the seeds and the film for preventing hot airflow in the film from escaping and burning seedlings; and simultaneously effectively reducing water content in the soil after heavy rain and being conductive to the germination of the peanut seeds. The method is simple, practical, easy to master and convenient to popularize, and can solve the problem that the plastic film mulching technology can not be applied in the autumn-planted peanuts in the subtropical regions, significantly improve the output of the autumn-planted peanuts in the subtropical regions and be particularly applicable to the cultivation of the autumn-planted peanuts in dry land and rain-fed fields in rain-fed areas of the subtropical regions.
Description
Technical field
The invention belongs to the arviculture technical field, particularly a kind of suitable autumn-planted peanuts in subtropical regions is cultivating method mulched.
Background technology
Plastic film mulching cultivation be a kind of on the soil of kind of plant cover film improve soil temperature, keep the technology of soil moisture and nutrient, reach the purpose that increases crop yield and improve product quality by the ecological environment of soil of creating plant growth preferably.Peanut is the geocarpic crop that blooms on the ground, and pod time of growth and maturity in soil is long, is subjected to the influence of soil temperature, moisture and nutrient big, and the old place film covers very big to the influence of peanut yield and quality.Result of the test shows, compares with outdoor cropping, and the peanut plastic film mulching cultivation can be done sth. in advance 10～15 days maturations, and volume increase reaches about 20～50%.
Plastic mulching cultivation technology is in China Yangtze river basin, the peanut of area and South China is produced extensive use to the north of the Changjiang river.But present peanut plastic mulching method is only applicable to the spring planting peanut cultivation in the South China, autumn-planted peanuts still can not be used film-mulching technique.China South China belongs to the subtropical zone, weather sweltering heat at the beginning of autumn late summer, and autumn-planted peanuts generally at the beginning of 8 months is being front and back sowing in about 10 days in the beginning of autumn, as adopt plastic mulching, and this moment, temperature in the shed can reach 50～60 ℃, and peanut seed can be burnt, can't normally sprout and grow, cause losing and receive.This is that the present peanut film-mulching technique of extensive use is difficult to be applied to the main cause that autumn-planted peanuts in subtropical regions is produced.
There is millions of mu autumn-planted peanuts every year China South China, is distributed in mostly on the arid hillside field, and frequent arid in autumn is very big to the influence of autumn-planted peanuts, so output is generally than low 1/3 of spring planting peanut.If can improve to existing peanut film-mulching technique, in its preserve moisture and fertility function of performance, can alleviate the too high influence of temperature in the shed summer and autumn again, can significantly improve the output of autumn-planted peanuts in subtropical regions.
Summary of the invention
Shortcoming and deficiency in order to overcome prior art the object of the present invention is to provide the cultivating method mulched of a kind of suitable autumn-planted peanuts in subtropical regions.
Purpose of the present invention is achieved through the following technical solutions: a kind of suitable autumn-planted peanuts in subtropical regions cultivating method mulched may further comprise the steps:
(1) whole ground and fertilising: select sandy loam, for catching up with farming season (promptly catching up with season), behind the first crop crop harvesting, whole ground, the furrow of having ditched; Fertilising in the time of whole ground, fertilizer and plough horizon mix; Owing to can not topdress behind the epiphragma, so fertilizer is disposable employed again, and fertilizing amount is according to soil fertility situation and the fertilizer requirement decision of peanut whole growing institute;
(2) plastic mulching: completing steps carries out epiphragma after (1), will make mulch film be close to furrow face soil table during covering with plastic film, does not interspace, and mulch film is wanted open and flat no wrinkle, on furrow limit and ditch confluce the film limit is compressed, in case wind plays mulch film; The thickness of described film is less than 0.008 millimeter;
(3) punching sowing: on mulch film, punch, will show soil and expose out; Distance between the hole is regulated according to the needs of planting density; Select for use full, healthy anosis peanut seed to make seed, sow again after the sterilization; The time of sowing is after preceding 10 days to the beginning of autumn of the beginning of autumn 10 days, the suitable early sowing in the higher area of latitude, the suitable late sowing in latitude area on the low side, autumn peanut seeding are too early, because of temperature too high, too shorten vegetative growth phase, and the florescence is in stage high temperature long-day, influences floral organ and grow and the pollination of blooming, causing bears pods lacks, sow too lately,, cause pod not full then because of later stage temperature is low; The humidity requirement of the soil of sowing is for agglomerating with the hand-tight earth of holding, and the openhanded earth of opening promptly looses; In the hole, sow, the degree of depth of sowing with 4.0～5.0 centimetres for well, earthing lid kind of a press mold, the seed of sowing can not cover in the mulch film, avoids high temperature to bake blind seed;
(4) rational close planting: every mu of strain number is at least 20,000 strains;
(5) field management: keep ground moistening, prevent ponding, control peanut plant over growth is prevented and treated bacteriosis and pest control disease;
(6) results: when the flavescence of peanut upper blade, kernel is ruddy full, when the shell lines is clear, can gather in the crops.
Sandy loam described in the step (1) is preferably the sandy loam that the soil is porous, plow layer is deep;
The requirement on whole ground is in small, broken bits smooth described in the step (1), has avoided large clod, in order to avoid influence the epiphragma effect;
The furrow of having ditched described in the step (1) require to the width of furrow lack 40～50 centimetres than the width of mulch film, and the height of furrow is 15～25 centimetres, owing to peanut is the intolerant to waterlogging crop, must hold drain ditch, tertiary circulation field successfully, the ditch ditch communicates, in case ponding, 25～30 centimetres of furrow widths;
Fertilising described in the step (1) is used 1000～2000 kilograms of farmers''s farmyard manures for preferred every mu, perhaps uses for concrete fertilizer type by the amount conversion of 9 kilograms of 9 kilograms of every mu of purity nitrogens, 6 kilograms of phosphorous oxide and potassium oxides;
More elect as in the step (2) and built behind the film stewing ground 5～10 days, utilize continuous high temperature in the film to kill part germ, weeds and insect in the soil, and the slaking of quickening organic reducing material in the soil is decomposed;
The thickness of the film described in the step (2) is preferably 0.005 millimeter;
Film described in the step (2) is a common ground film, uses preemergence herbicide and spray the furrow face before covering;
At least a in the excellent optional butachlor of described preemergence herbicide, Acetochlor or the isopropyl methoxalamine; The preemergence herbicide consumption can not be too many, otherwise influence the peanut seedling growth; The operation instruction that the working concentration of weed killer herbicide can provide with reference to producer.
Film described in the step (2) is weed removal mulch film more preferably;
The preferred per 100 jin of seeds of sterilization described in the step (3) are sterilized with 90～100 gram carbendazim seed dressings;
Hole described in the step (3) is preferably circular hole;
The diameter of described circular hole is 6.0～8.0 centimetres;
The preferred use of punching perforating device operation on mulch film described in the step (3);
Described perforating device comprises two horizontal Beam, two line-spacing hold-down bars and card punch; Article two, the same end of line-spacing hold-down bars has a short hole slot respectively, and the line-spacing set screw is positioned at short hole slot; Article two, the line-spacing hold-down bars lays respectively at the two ends of horizontal Beam, and it regulates distance between two crossbeams by the line-spacing set screw, and two horizontal Beam become rectangle with two line-spacing hold-down bars and are maintained at the same horizontal plane; Have a slotted hole groove on every horizontal Beam, the spacing in the rows set screw is positioned at the slotted hole groove; Card punch is a hollow circular cylinder, and the lower end is a circle sawtooth, and fixed head is equipped with in the upper end, and fixed head is the n shape of flat-top, and card punch is fixed in its lower end, and its top and crossbeam are riveted by the spacing in the rows set screw, the positional punch device;
Described perforating device more preferably adds a handle at the end of every horizontal Beam respectively, to operate perforating device more easily.
Earthing described in the step (3) lid kind of a press mold is meant in earthing lid kind and will compresses with the mulch film of soil with the circular hole periphery, and prevents in the film thermal current seedling of burning of overflowing;
Keeping ground moistening slowly to pour water to permeate by the furrow ditch described in the step (5) realizes; Described control ponding is realized by mediation field irrigation and drainage ditch; Described control peanut plant over growth is regulated control by spraying 0.1% B9 or paclobutrazol; The described bacteriosis of preventing and treating is prevented and treated by using 800 times of liquid of tpn alternately to spray 2 to 3 times; Described pest control disease realizes by spraying 800 times of liquid of chlorophos;
The present invention has following advantage and effect with respect to prior art: before the present invention, and China subtropical zone successful Application film-mulching technique plantation autumn peanut of also having no talent.The reason on autumn-planted peanuts, used of restriction film-mulching technique be summer and autumn temperature in the shed too high.Stewing ground of epiphragma technology can effectively utilize the high temperature high light in summer among the present invention, kills part germ, weeds and insect in the interior soil of film, is a kind of environment protection method of prevention and elimination of disease and pests.Punching back seeding technique can be avoided the injury of the interior high temperature of film to seed earlier.Earthing lid kind of a press mold method can be avoided in the film thermal current seedling of burning of overflowing.The rainstorm weather of summer and autumn causes and is detained excess moisture in the soil, causes mashed kind easily, and plastic mulching can effectively reduce the moisture in the soil behind the heavy rain, helps the sprouting of peanut seed.Plastic film mulching cultivation can alleviate the influence that autumn, frequent property arid of short duration was grown to peanut, and significantly improves soil temperature after cool autumn days, alleviates the harmful effect of later stage soil low temperature to fruit pod substance accumulation.Autumn peanut plastic mulching can suitably be received late, can make full use of the heat insulation function of later stage mulch film, obtains dry-matter accumulation more, increases pod weight.Autumn the peanut film-mulching technique simple and practical, be easy to grasp, be convenient to popularize, can significantly improve the output of autumn-planted peanuts in subtropical regions, especially be fit to be applied to subtropics rain the increase soil fertility nonirrigated farmland in district and the autumn peanut cultivation of fields on hill tops which depend on rains for water.
Description of drawings
Fig. 1 is the structure vertical view of the perforating device of embodiment 1 preparation.
Fig. 2 is the structure front view of the perforating device of embodiment 1 preparation.
Fig. 3 is the profile of card punch of the perforating device of embodiment 1 preparation.
Fig. 4 is the vertical view of card punch of the perforating device of embodiment 1 preparation.
Embodiment
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited thereto.
Embodiment 1
As described in Figure 1, this perforating device comprises two horizontal Beam 1 and two line-spacing hold-down bars 2, on every horizontal Beam 14 card punch 6 is housed; Article two, the same end of line-spacing hold-down bars 2 has a short hole slot 4 respectively, and line-spacing set screw 3 is positioned at short hole slot 4; Article two, line-spacing hold-down bars 2 lays respectively at the two ends of horizontal Beam 1, and it regulates distance between two crossbeams 1 by line-spacing set screw 3, and two horizontal Beam 1 are with 2 one-tenth rectangles of two line-spacing hold-down bars and be maintained at the same horizontal plane; Have a slotted hole groove 5 on every horizontal Beam 1, spacing in the rows set screw 10 is positioned at slotted hole groove 5; Card punch 6 is connected with horizontal Beam 1 by spacing in the rows set screw 10 and fixes; End at every horizontal Beam 1 is equipped with a handle 11 respectively.Shown in Fig. 2～4, each card punch 6 is a hollow circular cylinder, and the lower end is a circle sawtooth 8, fixed head 9 is equipped with in the upper end, and fixed head 9 is the n shape of flat-top, and card punch 6 is fixed in its lower end, its top and crossbeam 1 are riveted by spacing in the rows set screw 10, positional punch device 6.The outer bore of card punch 6 is 6.0 centimetres.
Embodiment 2
The kind that present embodiment adopted is No. 7, Guangdong oil, and experimental field soil types is inclined to one side viscosity loam, and previous crops is a paddy rice.Test is provided with plastic film mulching cultivation and two kinds of plantation modes of outdoor cropping, and the cultivated area of every kind of mode is 0.3 mu.
(1) whole ground and fertilising: two kinds of plantation modes all adopt the single fertilization method, before the sowing fertilizer are evenly spread fertilizer over the fields before whole ground, deep plough more than the dark loose 30cm, plough under in the plow layer the many rake levelings of two ploughs.Fertilizing amount is every mu and executes 2000 kilograms of farmyard manures, 15 kilograms in urea, 30 kilograms of superphosphate, about 15 kilograms in potassium chloride.The general requirement on whole ground is in small, broken bits smooth, has avoided large clod, in order to avoid influence the epiphragma effect.The furrow of having ditched are held the drain ditch successfully.The high 25cm of furrow, furrow face width 110cm, furrow width 25cm.
(2) plastic mulching: adopting width is the weed removal mulch film of 150cm, and film thickness is 0.008mm.Cover mulch film by the technical regulation requirement, and high temperature week frowzily.
(3) punching sowing: uses perforating device that embodiment 1 prepares building on the furrow face of mulch film, get the circular hole of 6 centimetres of diameters by the specification of seeding row spacing as 20cm * 25cm.The phase of sowing is August 5, and per 100 jin of seeds are sterilized with 100 gram carbendazim seed dressings.Sowing is to adopt the mode of the limit earthing lid kind press mold of sowing while punch to carry out.When planting press mold, the earthing lid notes compressing with the mulch film of soil with the circular hole periphery.All that (isopropyl methoxalamine) 100 gram/mus of preemergence herbicide are sprayed in outdoor cropping behind the blinding of sowing, convert 50 kilograms in water, the sufficient furrow face of the even spray of spray.
(4) rational close planting: planting density is that 2 seeds are broadcast in every cave (hole), guarantees that every mu of basic seedling amount reaches more than 20,000 strains.
(5) field management: notice that after seed germination is unearthed looking into seedling fills the gaps with seedlings, and in time fills a vacancy.Behind heavy rain, note checking field ponding situation, avoid occurring field ponding.Adopt the furrow irrigation pattern of invasion to pour water during arid.When spending the big row of back 20 days plant envelope in the beginning and the time control seedling prevent excessive growth.Convert 50 kilograms of spraying controls of water seedling with every mu of usefulness of 15% paclobutrazol 50 grams.Outdoor cropping is carried out intertill and clean tillage one time in the early flowering season.
(6) results: at the beginning of 12 months, this moment, field peanut lower blade began to come off, the upper blade flavescence, and take a sample to check and find that peanut shell lines is clear in the field, and kernel is ruddy full.In December 5 results, peanut dried weigh, convert and be per mu yield.The conversion per mu yield of plastic film mulching cultivation is 317 kilograms, and the conversion per mu yield of outdoor cropping is 242 kilograms, and the plastic mulching mode is increased production than outdoor cropping mode and reached 31%.
Adopt the inventive method cultivation autumn peanut can obtain good effect of increasing production.
The foregoing description is a preferred implementation of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spiritual essence of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. a suitable autumn-planted peanuts in subtropical regions is cultivating method mulched, it is characterized in that may further comprise the steps:
(1) whole ground and fertilising: select sandy loam, for catching up with farming season, behind the first crop crop harvesting, whole ground, the furrow of having ditched; Fertilising in the time of whole ground, fertilizing amount is according to soil fertility situation and the fertilizer requirement decision of peanut whole growing institute, and fertilizer and plough horizon mix;
(2) plastic mulching: completing steps carries out epiphragma after (1), will make mulch film be close to furrow face soil table during covering with plastic film, does not interspace, and mulch film is wanted open and flat no wrinkle, on furrow limit and ditch confluce the film limit is compressed; The thickness of described film is less than 0.008 millimeter;
(3) punching sowing: on mulch film, punch, will show soil and expose out; Distance between the hole is regulated according to the needs of planting density; Select for use full, healthy anosis peanut seed to make seed, sow again after the sterilization; The time of sowing is after preceding 10 days to the beginning of autumn of the beginning of autumn 10 days; The humidity requirement of the soil of sowing is for agglomerating with the hand-tight earth of holding, and the openhanded earth of opening promptly looses; Sow in the hole, the degree of depth of sowing is 4.0～5.0 centimetres, earthing lid kind of press mold, and the seed of sowing can not cover in the mulch film;
(4) rational close planting: every mu of strain number is at least 20,000 strains;
(5) field management: keep ground moistening, prevent ponding, control peanut plant over growth is prevented and treated bacteriosis and pest control disease;
(6) results: when the flavescence of peanut upper blade, kernel is ruddy full, when the shell lines is clear, can gather in the crops.
2. cultivating method mulched according to the described suitable autumn-planted peanuts in subtropical regions of claim 1 is characterized in that:
Sandy loam described in the step (1) is the sandy loam that the soil is porous, plow layer is deep;
The requirement on the whole ground described in the step (1) is in small, broken bits smooth, has avoided large clod;
It is that the width of furrow lacks 40～50 centimetres than the width of mulch film that trench digging described in the step (1) plays furrow, and the height of furrow is 15～25 meters, holds drain ditch, tertiary circulation field successfully, and the ditch ditch communicates, 25～30 centimetres of furrow widths;
Fertilising described in the step (1) is every mu and uses 1000～2000 kilograms of farmers''s farmyard manures, perhaps uses for concrete fertilizer type by the amount conversion of 9 kilograms of 9 kilograms of every mu of purity nitrogens, 6 kilograms of phosphorous oxide and potassium oxides.
3. cultivating method mulched according to the described suitable autumn-planted peanuts in subtropical regions of claim 1 is characterized in that: in the step (2) behind described epiphragma stewing ground 5～10 days; The thickness of described film is 0.005 millimeter.
4. cultivating method mulched according to the described suitable autumn-planted peanuts in subtropical regions of claim 1, it is characterized in that: the film described in the step (2) is a weed removal mulch film.
5. cultivating method mulched according to the described suitable autumn-planted peanuts in subtropical regions of claim 1, it is characterized in that: the film described in the step (2) is a common ground film, uses preemergence herbicide and spray the furrow face before covering.
6. cultivating method mulched according to the described suitable autumn-planted peanuts in subtropical regions of claim 5 is characterized in that: described preemergence herbicide is at least a in butachlor, Acetochlor or the isopropyl methoxalamine.
7. cultivating method mulched according to the described suitable autumn-planted peanuts in subtropical regions of claim 1 is characterized in that: the sterilization described in the step (3) is per 100 jin of seeds with 90～100 gram carbendazim seed dressing sterilizations; Hole described in the step (3) is a circular hole, and diameter is 6.0～8.0 centimetres.
8. cultivating method mulched according to the described suitable autumn-planted peanuts in subtropical regions of claim 1 is characterized in that: described in the step (3) on mulch film punching use the perforating device operation.
9. described suitable autumn-planted peanuts in subtropical regions cultivating method mulched according to Claim 8 is characterized in that: described perforating device comprises two horizontal Beam, two line-spacing hold-down bars and card punch; Article two, the same end of line-spacing hold-down bars has a short hole slot respectively, and the line-spacing set screw is positioned at short hole slot; Article two, the line-spacing hold-down bars lays respectively at the two ends of horizontal Beam, and it regulates distance between two crossbeams by the line-spacing set screw, and two horizontal Beam become rectangle with two line-spacing hold-down bars and are maintained at the same horizontal plane; Have a slotted hole groove on every horizontal Beam, the spacing in the rows set screw is positioned at the slotted hole groove; Card punch is a hollow circular cylinder, and the lower end is a circle sawtooth, and fixed head is equipped with in the upper end, and fixed head is the n shape of flat-top, and card punch is fixed in its lower end, and its top and crossbeam are riveted by the spacing in the rows set screw, the positional punch device.
10. cultivating method mulched according to the described suitable autumn-planted peanuts in subtropical regions of claim 9, it is characterized in that: described perforating device contains handle, lays respectively at two edge tails of every horizontal Beam.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101934309A CN101697687B (en) | 2009-10-29 | 2009-10-29 | Plastic film mulching cultivation method suitable for autumn-planted peanuts in subtropical regions |
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| CN2009101934309A CN101697687B (en) | 2009-10-29 | 2009-10-29 | Plastic film mulching cultivation method suitable for autumn-planted peanuts in subtropical regions |
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| CN101697687B CN101697687B (en) | 2012-05-23 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102523999A (en) * | 2012-01-09 | 2012-07-04 | 中国农业科学院作物科学研究所 | Method for improving crop yield by using winter snowfall |
| CN103918453A (en) * | 2014-04-24 | 2014-07-16 | 张家港市凤凰镇杏市土地股份专业合作社 | Environment-friendly high-yield planting method of peanuts |
| CN104041356A (en) * | 2013-03-17 | 2014-09-17 | 赵彦杰 | Equipment for punching on mulching film |
| CN104472135A (en) * | 2014-11-10 | 2015-04-01 | 安徽省龙海种业有限公司 | Planting method of Tianfu 3 peanut |
| CN105191627A (en) * | 2015-09-24 | 2015-12-30 | 太仓市南杨农场专业合作社 | High-yield spring peanut cultivation method |
| CN106613293A (en) * | 2017-02-15 | 2017-05-10 | 中国农业科学院农业环境与可持续发展研究所 | Autumn film mulching planting method of spring peanuts |
| CN107172920A (en) * | 2017-05-25 | 2017-09-19 | 江苏省农业科学院 | Hole plate seedling growth manual hole puncher |
| CN109594553A (en) * | 2019-02-14 | 2019-04-09 | 亿利资源集团有限公司 | A kind of sand-protecting barrier laydown machine |
| WO2019096361A1 (en) * | 2017-11-19 | 2019-05-23 | Boudaoudi Hachimi | Appliance for perforating plastic mulch used in farming |
| CN111165119A (en) * | 2019-06-21 | 2020-05-19 | 山东农业工程学院 | Dandelion cultivation position positioning combined frame and use method |
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- 2009-10-29 CN CN2009101934309A patent/CN101697687B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102523999A (en) * | 2012-01-09 | 2012-07-04 | 中国农业科学院作物科学研究所 | Method for improving crop yield by using winter snowfall |
| CN102523999B (en) * | 2012-01-09 | 2015-06-03 | 中国农业科学院作物科学研究所 | Method for improving crop yield by using winter snowfall |
| CN104041356A (en) * | 2013-03-17 | 2014-09-17 | 赵彦杰 | Equipment for punching on mulching film |
| CN103918453A (en) * | 2014-04-24 | 2014-07-16 | 张家港市凤凰镇杏市土地股份专业合作社 | Environment-friendly high-yield planting method of peanuts |
| CN104472135A (en) * | 2014-11-10 | 2015-04-01 | 安徽省龙海种业有限公司 | Planting method of Tianfu 3 peanut |
| CN105191627A (en) * | 2015-09-24 | 2015-12-30 | 太仓市南杨农场专业合作社 | High-yield spring peanut cultivation method |
| CN106613293A (en) * | 2017-02-15 | 2017-05-10 | 中国农业科学院农业环境与可持续发展研究所 | Autumn film mulching planting method of spring peanuts |
| CN107172920A (en) * | 2017-05-25 | 2017-09-19 | 江苏省农业科学院 | Hole plate seedling growth manual hole puncher |
| WO2019096361A1 (en) * | 2017-11-19 | 2019-05-23 | Boudaoudi Hachimi | Appliance for perforating plastic mulch used in farming |
| CN109594553A (en) * | 2019-02-14 | 2019-04-09 | 亿利资源集团有限公司 | A kind of sand-protecting barrier laydown machine |
| CN109594553B (en) * | 2019-02-14 | 2024-03-05 | 亿利资源集团有限公司 | Sand barrier laying machine |
| CN111165119A (en) * | 2019-06-21 | 2020-05-19 | 山东农业工程学院 | Dandelion cultivation position positioning combined frame and use method |
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| CN101697687B (en) | 2012-05-23 |
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