CN101218880A - Laminating method for seedling raising in dry land - Google Patents
Laminating method for seedling raising in dry land Download PDFInfo
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- CN101218880A CN101218880A CNA2007100633659A CN200710063365A CN101218880A CN 101218880 A CN101218880 A CN 101218880A CN A2007100633659 A CNA2007100633659 A CN A2007100633659A CN 200710063365 A CN200710063365 A CN 200710063365A CN 101218880 A CN101218880 A CN 101218880A
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Abstract
The invention relates to a method for covering film for cultivating seedlings on a dry land, belonging to the technical field of agricultural planting, which is characterized in that a tiling film (2) is covered on a box surface after fertilizing, watering, seeding and covering earth on a dry land seedbed; the thickness of the tiling film can be smaller or equal to 0.008mm and the periphery of the tiling film is compacted by clod; arc strips (3) with a length of 200cm to 220cm are inserted into the soil beside the box at both sides of the box and the depth for soil insertion is 10cm to 15cm to lead the arc strip to be in a natural arc shape. The distance between the arc strips is 60cm to 80cm to form an arc frame. An arc frame film (1) is covered on the arc frame and the thickness of the arc frame film is larger than or equal to 0.014mm, both ends of the seedling box are respectively covered by one more bamboo strip to lead the plastic films at both ends to be positioned between two layers of the bamboo strips. After covering the film, the periphery is compacted by clod; after more than 80 percent of seeds come out of the land or the rice is in the stage of needle leaf, the tiling film is removed. The invention is applied during early spring in lower temperature period so as to better solve the problem of water insufficiency on the surface soil horizon of the seedling box and lead the seeds to acquire sufficient water supply; the invention has the advantages of very uniform moisture on the box surface, good insulating effect and slow change of temperature, which is very beneficial to the growth of early spring crops.
Description
Technical field:
The present invention relates to a kind of film covering method of seedling raising in dry land, belong to the agriculture cultivation technology field.
Background technology:
Overlay film is technological means commonly used in the modern crop genetics, and its method commonly used is that plastic film is covered on the arable land of raise crop.By overlay film, can alleviate scattering and disappearing of the water evaporation quantity of soil and heat, play insulation, water conservation, season, the effect that increases output, increase the benefit in advance.
Existing film mulching method mainly contains two kinds, i.e. bow member cladding process and tiling cladding process.
The tiling cladding process can keep railway carriage or compartment face moisture, and early stage fine day intensification amplitude is big, and the night cooling amplitude is big, and the temperature in the shed and the external world differ less when overcast and rainy, and general overlay film height is the rice shoot height.Because plastic film comes by rice shoot leaf growth jack-up, is meeting precipitation, forms rugged " little puddle " at the film table easily, has increased the pressure that rice shoot bears; Simultaneously, plastic film directly contacts with blade, is meeting the weather that changes, and as fine day, low temperature, cold wave etc., sustains an injury easily with the blade that film directly contacts, as burns or frostbite.The thickness of sowing and the seedling quality of tiling cladding process are negative correlation, and thickness of sowing can not be excessive, and little to the guard space of rice shoot, so shorter period to the early protection of rice shoot, restricted application.
The guard space of bow member method with plastic film is big, and the intensification effect in the film is good, can make the early stage seedling growth long period, can reach more than 5 leaves as the early rice seedling leaf.Owing between rice shoot blade and plastic film certain distance is arranged, thereby is subjected to the influence of high temperature, low humidity etc. also lighter relatively.Moisture because overlay film heats up in the seedling railway carriage or compartment, back can become the inner surface that gaseous state rises to plastic film by liquid state, and its inner surface is an arc, and the water droplet that condenses upon inner surface can produce redistribution along with the inner surface of arc.The condensed water that the arc top is bordering between plane area returns the railway carriage or compartment face with regard to residual titration, and the water droplet of both sides cambered surface then flows to both sides because of attached wall effect.So just formed the quadratic distribution of a moisture, the water droplet that is positioned at film top cambered surface returns the railway carriage or compartment face that makes below it and reaches in a basic balance; The water droplet that is positioned at both sides then mainly flows to the edge in railway carriage or compartment, both sides owing to its attached wall effect, flow at last in the ditch on limit, railway carriage or compartment, make the moisture that the railway carriage or compartment face evaporates up fail fully to return, thereby cause the railway carriage or compartment face in the quadratic distribution of moisture, to form the zone of a local arid.This local arid region is very big in seed sprouting to the early stage influence of growth of seedling, and it can reduce seed germination rate and growth of seedlings gesture, causes the inconsistent of seed early growth, thereby increases the difficulty of management.
Summary of the invention:
For overcoming the deficiencies in the prior art part, the object of the present invention is to provide a kind of film covering method of seedling raising in dry land, to reach the enhancing heat insulation effect, prolong protection period to rice shoot, guarantee that railway carriage or compartment face moisture is evenly sufficient, help the purpose of seedling growth.
The present invention realizes above-mentioned purpose by following technical solution.
(1), apply fertilizer in the seedbed, nonirrigated farmland, water, after the sowing, earthing, the flat railway carriage or compartment face that is overlying on of the film (2) that will tile, the thickness of tiling film should be smaller or equal to 0.008mm, and the film that will tile is pressed tight compacting with soil block all around.
(2), be that the arch bar (3) of 200cm--220cm inserts in the soil on limit, railway carriage or compartment on the both sides in railway carriage or compartment with length, the degree of depth of inserting in the soil is 10cm--15cm, makes it be nature garden arc arch shape, the spacing of arch bar is 60cm--80cm, forms bow member.
(3), on bow member, be covered with bow member film (1), respectively add at the two ends in seedling railway carriage or compartment and cover a bamboo bar, the plastic film at two ends is among the two-layer bamboo bar, the thickness of bow member film should be more than or equal to 0.014mm, the overlay film rear perimeter edge is pressed tight compacting with soil block.
(4), treat that seed more than 80% is unearthed or the upright pin of paddy rice after, the film that will tile is thrown off.
The present invention has following beneficial effect compared with prior art:
1, use in low temperature period in early spring, can solve the water deficient problem of seedling railway carriage or compartment topsoil well, make seed be able to sufficient water supply, railway carriage or compartment face moisture is very even, and the water content of topsoil is near saturated, and the moisture effect is obvious.
2, this method is the organic assembling of tiling overlay film and two kinds of methods of bow member overlay film; two membranes and middle air layer constitute a good insulation construction; the tiling overlay film on its ground is an internal layer; middle air layer thermal conductivity is very low; become heat-insulation layer; the bow member film of outside is outer, is undertaking the responsibility of protective layer.This composite construction has good heat insulation effect.Cold air when early spring comes temporarily, owing to there is two membranes to add middle heat-insulation layer--the cushioning effect of air layer, its temperature decline scope is obviously slowed down; And that the fine day behind cold air comes is interim, and the temperature because of its railway carriage or compartment face of cushioning effect of air layer can not rise sharply at once again.This variation is slow and railway carriage or compartment face temperature that bulk temperature is higher is very useful to the growth of rabi.
Description of drawings:
Fig. 1 is a kind of general structure schematic diagram of film covering method of seedling raising in dry land.
Fig. 2 is a kind of structure of film schematic diagram of film covering method of seedling raising in dry land.
In the drawings, 1. the bow member film, 2. the tiling film, 3. the arch bar.
Embodiment:
Implement the present invention, comprise following step:
(1), on the seedbed, nonirrigated farmland through put in order, apply fertilizer, water, after the sowing, earthing, the flat railway carriage or compartment face that is overlying on of the film (2) that will tile, its thickness should be smaller or equal to 0.008mm, if the tiling film has breakage, the sticking water of the available film more bigger than breakage sticks, and its effect is similar to good film.The effect of this layer film mainly is to cover steam, keeps the vapour pressure balance of seedling railway carriage or compartment topsoil each several part under the film, thereby makes the topsoil moisture of its seedling bed even, and water content is sufficient.After covering, the tiling film to press tight compacting all around with the soil block film that will tile.
(2), be that the arch bar (3) (as the bamboo bar etc.) of 200cm--220cm inserts in the soil on limit, railway carriage or compartment on the both sides in railway carriage or compartment with length, the degree of depth of inserting in the soil is 10cm--15cm, makes it be nature garden arc arch shape, the spacing of arch bar is 60cm--80cm, forms bow member.
(3), on bow member, be covered with bow member film (1), respectively add at the two ends in seedling railway carriage or compartment and to cover a bamboo bar, the plastic film at two ends is among the two-layer bamboo bar, to undertake the effect of resisting the external force influence because of the plastic film on the bow member, can not be too thin, its thickness generally should be more than or equal to 0.014mm, and overlay film is wanted the degree of tightness appropriateness, and the overlay film rear perimeter edge will be pressed tight compacting with soil block.
(4), treat that seed more than 80% is unearthed or the upright pin of paddy rice after, the tiling film can be thrown off.After the tiling film was thrown off, rice shoot just placed under the space of bow member film, and just can manage according to the method for common center film seedling raising this moment.
According to test: big 30N in north, height above sea level 1100m place rice dry nursery seedling, April 1 early spring, 9:00 checked, under 4 ℃ of temperature, little sleety weather, temperature is 5.6 ℃ in the film of monofilm bow member, and be 7.2 ℃ in the tiling film under the bow member film of the present invention, this heat insulation effect can make shift to an earlier date the safe sowing time of crop, and prolonged the season of crop normal growth.
In the test of paddy drought seedling technology, early spring, temperature was lower, because of the water retention property of bow member film relatively poor, and the tiling film early spring heat insulation effect a little less than, make that from face the non-irrigated seedling seeding ratio in period in early spring is lower.Lower conventional seed rice influence also is not very big to price for this, and more outstanding with regard to the problem that seems for the higher hybrid rice seed of price.Because the hybrid rice rice shoot percentage establishment of seedling of any single film mulching method is all only about 50%.This problem has restricted the application of non-irrigated seedling-cultivation technique.After having adopted method of the present invention, because the temperature of Composite Double film, the double effect of moisture, under the constant substantially situation of other technologies measure, the percentage establishment of seedling of its rice shoot can be brought up to more than 85%, and high reaches more than 90%.This technology can make the paddy drought seedling technology enlarge application rapidly, and produces huge economic benefit.
Claims (4)
1. the film covering method of a seedling raising in dry land is characterized in that:
(1), apply fertilizer in the seedbed, nonirrigated farmland, water, after the sowing, earthing, the film (2) that will tile is flat to be overlying on the railway carriage or compartment face, and the film that will tile is pressed tight compacting with soil block all around;
(2), will encircle bar (3) and insert in the soil on limit, railway carriage or compartment on the both sides in railway carriage or compartment, make it be nature garden arc arch shape, the spacing of arch bar is 60cm--80cm, forms bow member;
(3), on bow member, be covered with bow member film (1), respectively add at the two ends in seedling railway carriage or compartment and cover a bamboo bar, the plastic film at two ends is among the two-layer bamboo bar, the overlay film rear perimeter edge is pressed tight compacting with soil block;
(4), treat that seed more than 80% is unearthed or the upright pin of paddy rice after, the film that will tile is thrown off.
2. the film covering method of a kind of seedling raising in dry land according to claim 1, the thickness of the film that it is characterized in that tiling should be smaller or equal to 0.008mm.
3. the film covering method of a kind of seedling raising in dry land according to claim 2, the length that it is characterized in that encircleing bar is 200cm--220cm, the degree of depth of inserting in the soil is 10cm--15cm.
4. the film covering method of a kind of seedling raising in dry land according to claim 3 is characterized in that the thickness of bow member film should be more than or equal to 0.014mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100633659A CN101218880A (en) | 2007-01-10 | 2007-01-10 | Laminating method for seedling raising in dry land |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100633659A CN101218880A (en) | 2007-01-10 | 2007-01-10 | Laminating method for seedling raising in dry land |
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| CN101218880A true CN101218880A (en) | 2008-07-16 |
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| CNA2007100633659A Pending CN101218880A (en) | 2007-01-10 | 2007-01-10 | Laminating method for seedling raising in dry land |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101352137B (en) * | 2008-09-09 | 2010-12-08 | 李国伦 | Dry-sowed waterpipe seedling culture method |
| CN102726264A (en) * | 2012-07-16 | 2012-10-17 | 姚宏亮 | Mechanically-mulching cultivation method of organic rice |
| CN104855193A (en) * | 2015-04-21 | 2015-08-26 | 王和绥 | Cultivation method of rice in southern regions of Anhui Province, China |
| CN107439278A (en) * | 2017-08-29 | 2017-12-08 | 潍坊职业学院 | Small push encircles bar automatic insertion machine |
| CN115053743A (en) * | 2022-07-12 | 2022-09-16 | 内蒙古农业大学 | Method for improving emergence rate of autumn-sowed cerasus humilis in inner Mongolia region |
-
2007
- 2007-01-10 CN CNA2007100633659A patent/CN101218880A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101352137B (en) * | 2008-09-09 | 2010-12-08 | 李国伦 | Dry-sowed waterpipe seedling culture method |
| CN102726264A (en) * | 2012-07-16 | 2012-10-17 | 姚宏亮 | Mechanically-mulching cultivation method of organic rice |
| CN104855193A (en) * | 2015-04-21 | 2015-08-26 | 王和绥 | Cultivation method of rice in southern regions of Anhui Province, China |
| CN107439278A (en) * | 2017-08-29 | 2017-12-08 | 潍坊职业学院 | Small push encircles bar automatic insertion machine |
| CN107439278B (en) * | 2017-08-29 | 2019-06-14 | 潍坊职业学院 | Small push encircles an automatic insertion machine |
| CN115053743A (en) * | 2022-07-12 | 2022-09-16 | 内蒙古农业大学 | Method for improving emergence rate of autumn-sowed cerasus humilis in inner Mongolia region |
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Open date: 20080716 |