CN108235902A - A kind of natural selenium-rich rice nonirrigated farmland cultural method - Google Patents
A kind of natural selenium-rich rice nonirrigated farmland cultural method Download PDFInfo
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- CN108235902A CN108235902A CN201810017152.0A CN201810017152A CN108235902A CN 108235902 A CN108235902 A CN 108235902A CN 201810017152 A CN201810017152 A CN 201810017152A CN 108235902 A CN108235902 A CN 108235902A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
- A01C21/005—Following a specific plan, e.g. pattern
Abstract
The present invention provides a kind of natural selenium-rich rice nonirrigated farmland cultural methods, include the following steps：(1) plot of PH5.5 7.0, total Se content >=0.3 mg/kg of soil are selected；(2) then site preparation is laid with drip irrigation zone and mulch；(3) bunch planting, often kernal number is 68 average under cave；Program request is in 9 11cm positions of trickle irrigation both sides, and line-spacing is in 18 22cm, 18 22cm of spacing in the rows, emergence of dripping in time；(4) breeding time generally drips weekly 1 water, and drip 40 50m every time3/667m2, while drip number and water consumption are suitably reduced according to rain fall；Rice entire breeding time co-administers 4 water soluble fertilizers, is applied with water droplet.The selenium-rich rice of the method for the present invention plantation, is planted using nonirrigated farmland, and plantation details is optimized so that selenium element is easily absorbed abundant, to plant out rice Se content height, after testing in paddy Se content in more than 0.1mg/kg.
Description
Technical field
The present invention relates to field of agricultural cultivation, and in particular to a kind of natural selenium-rich rice nonirrigated farmland cultural method.
Background technology
Selenium is one of the essential trace elements of the human body, there is anti-oxidant, anti-aging, and protection, repair cell improve red blood cell
Oxygen carrying capacity, improve the immunity of the human body, removing toxic substances, toxin expelling, antagonism heavy metal toxicity, prevent canceration, protection cardiovascular and cerebrovascular etc.
Multiple functions.However, selenium can not synthesize in human body, it is necessary to be obtained by diet.Therefore human body whether selenium deficiency, largely
The upper height depending on Selenium In Foods content.And the land area in China 3/4ths belongs to low selenium and selenium deficiency is regional, three/
Two population needs selenium-supply there are different degrees of selenium insufficiency of intake.
It is influenced by eating habit, 80% comes from cereal in total selenium amount of China resident intake.Therefore, it improves in cereal
Se content, be human body selenium-supply important channel.Rice is one of the staple food crop in China, is given birth to by rice selenium-enriching cultivation
Natural selenium-rich rice is produced, will be the maximally efficient approach of human body selenium-supply.At present, there are mainly two types of the modes of rice selenium-enriching cultivation,
A kind of is that rice Se content is improved by way of manually applying selenium fertilizer, and another kind is big using the selenium-rich of selenium-rich soil resource production
Rice.The latter has apparent natural high-quality, safe and reliable, pollution-free and sustainable advantage relative to the former.
The abundant selenium-rich soil resource in Hainan, the exploitation for natural selenium-rich rice are provided convenience.According to Yang Zhongfang etc. to sea
The tune Check of the 18 cities and counties' agricultural land soil selenium in Austronesia research shows that, Hainan selenium-rich soil area reaches 9500km2, about 69.8% soil
Belong to sufficient selenium or selenium-rich state.Therefore, using the abundant selenium-rich soil in Hainan, nonirrigated farmland selenium-rich rice cultivation is carried out, exploitation is high-quality
Nonirrigated farmland selenium-rich rice has apparent natural advantage and development space.
Invention content
It is an object of the invention to overcome deficiency of the prior art, a kind of implantation methods of selenium-rich rice, this hair are provided
The selenium-rich rice of the plantation of bright method, rice yield is high, selenium element content is high and nuisanceless in rice.
The invention is realized in this way：
A kind of natural selenium-rich rice nonirrigated farmland method for planting, includes the following steps：
(1) selection of land
Selection has irrigation conditions, topography flat, in flakes, and more than soil fertility is medium, water retention property is good, PH5.5-7.0
Plot, (the total Se content of soil reaches 0.3-0.4 mgs/kg of sufficient selenium or selenium-rich to total Se content >=0.3 mg/kg of soil
Standard more than 0.4 mg/kg)；
(2) crop field prepares
Site preparation makes topsoil soils smooth, soft, fine crushing；Then drip irrigation zone and mulch, the spaced 38- of every trickle irrigation are laid with
42cm, plastic film mulch is open and flat tightly, and (mulch can use the full covered ground of 2m wide films, and two film joint earthing press molds ensure that plastic film mulch is put down
Exhibition is tight)；
(3) it sows
Application rate：Application rate is 2-3kg/667m2, bunch planting, often kernal number is averaged 6-8 under cave；Seeding method：Break ground
Film spot is broadcast in trickle irrigation both sides 9-11cm positions, and depth of planting ensures Planting Row Distance in 18-22cm, spacing in the rows in 2.0-2.5cm
Control is in 18-22cm, emergence of after planting dripping in time；
(4) fertilizer and water management
Breeding time generally drips weekly 1 water, and drip 40-50m every time3/667m2, while drop is suitably reduced according to rain fall
Waterside number and water consumption ensure soil relative water content more than 80%；
Rice entire breeding time co-administers 4 fertilizer, and applications of water soluble fertilizers is applied with water droplet.
Preferably, the natural selenium-rich rice nonirrigated farmland method for planting includes the following steps：
(1) selection of land
Selection has irrigation conditions, topography flat, in flakes, and more than soil fertility is medium, water retention property is good, and pH value is in weak acid
Property to neutral plot, total Se content >=0.3 mg/kg of soil；
(2) crop field prepares
Site preparation makes topsoil soils smooth, soft, fine crushing；Then drip irrigation zone and mulch, the spaced 38- of every trickle irrigation are laid with
42cm or so, plastic film mulch is open and flat tight, and cultivation ground realizes that (mulch can use the full covered ground of 2m wide films, two films to full-film covering
Joint earthing press mold ensures that the full-film covering on ground and plastic film mulch are open and flat tight)；
(3) it sows
Application rate：Application rate is 2-3kg/667m2, bunch planting, often kernal number is averaged 6-8 under cave；Seeding method：Break ground
Film spot is broadcast in trickle irrigation both sides 10cm right positions, and depth of planting ensures Planting Row Distance in 20cm or so in 2.0-2.5cm,
Spacing in the rows is controlled in 20cm or so, emergence of after planting dripping in time；
(4) fertilizer and water management
Fully drip before emergence, keep soil relative water content more than 90%, after emergence to harvest it is previous as drip 1 weekly
Secondary water, drip 40-50m every time3/667m2, while drip number and water consumption are suitably reduced according to rain fall, keep soil phase
To water content more than 80%；
Rice entire breeding time co-administers 4 fertilizer, and applications of water soluble fertilizers is applied with water droplet.
Preferably, rice entire breeding time co-administers 4 fertilizer, respectively：(1) seedling stage applies urea 6-8kg/667m2,
Monoammonium phosphate 2.5-.35kg/667m2, potassium chloride 2.5-3.5kg/667m2.(2) tillering stage applies urea 9-11kg/667m2, phosphorus
Sour monoammonium 6.5-7.5kg/667m2, potassium chloride 6.5-7.5kg/667m2.(3) boot stage applies urea 9-11kg/667m2, phosphoric acid
Monoammonium 6.5-7.5kg/667m2, potassium chloride 6.5-7.5kg/667m2.(4) heading stage applies urea 9-11kg/667m2, phosphoric acid one
Ammonium 6.5-7.5kg/667m2, potassium chloride 6.5-7.5kg/667m2。
It is further preferred that rice entire breeding time co-administers 4 fertilizer, respectively：(1) seedling stage applies urea 7kg/
667m2, monoammonium phosphate 3kg/667m2, potassium chloride 3kg/667m2.(2) tillering stage applies urea 10kg/667m2, monoammonium phosphate
7kg/667m2, potassium chloride 7kg/667m2.(3) boot stage applies urea 10kg/667m2, monoammonium phosphate 7kg/667m2, potassium chloride
7kg/667m2.(4) heading stage applies urea 10kg/667m2, monoammonium phosphate 7kg/667m2, potassium chloride 7kg/667m2。
Preferably, selection of land selects plot of the pH value for 5.5-7.0.
The selenium-rich rice of the method for the present invention plantation, is planted using nonirrigated farmland, plantation details is optimized so that selenium element is held
Easily absorbed abundant, to plant out rice Se content height, after testing in paddy Se content in more than 0.1mg/kg.
Specific embodiment
With reference to specific embodiment, the present invention is further illustrated, to more fully understand the present invention.
(1) selection of land
Irrigation conditions, topography should be selected flat, in flakes, more than soil fertility is medium, water retention property is good, pH value is in weak
Acidity is to the plot of neutral (5.5-7.0).The full Se content of soil should then reach 0.3-0.4 gs/kg of sufficient selenium or selenium-rich is more than
0.4 mg/kg of standard, in the present embodiment, the full Se content of soil in the plot selected is 0.382mg/kg.
(2) site preparation, pipe laying, overlay film
It is required that topsoil soils are smooth, soft, fine crushing.After the completion of site preparation, it is laid with drip irrigation zone and mulch, every trickle irrigation is spaced
40cm, mulch use the full covered ground of 2m wide films, and two film joint earthing press molds ensure that plastic film mulch is open and flat tight and cultivation ground is complete
Film covers, and mulch can ensure full-film covering and the paving on ground using the full covered ground of 2m wide films, two film joint earthing press molds
Film is open and flat tight.
(3) it sows
Selection is suitable for local the disease-resistant, resistant to lodging of cultivation, tillering ability is strong, high yield kind is sowed, application rate：It broadcasts
Kind amount is 2-3kg/667m2, bunch planting, often kernal number is averaged 6-8 under cave.Seeding method：Mulch program request is broken using seeder
In trickle irrigation both sides 10cm positions, depth of planting ensures Planting Row Distance in 20cm or so in 2.0-2.5cm, and spacing in the rows also controls
In 20cm or so, emergence of after planting dripping in time.
(4) fertilizer and water management
Time of infertility water requirement 600m3/667m2, it fully drips before emergence, keeps soil relative water content more than 90%,
After emergence to harvest it is previous as drip 1 water weekly, drip 40-50m every time3/667m2, while drop is suitably reduced according to rain fall
Waterside number and water consumption keep soil relative water content more than 80%.
Rice entire breeding time co-administers 4 fertilizer, and applications of water soluble fertilizers is applied with water droplet：(1) seedling stage applies urea
7kg/667m2, monoammonium phosphate 3kg/667m2, potassium chloride 3kg/667m2.(2) tillering stage applies urea 10kg/667m2, phosphoric acid one
Ammonium 7kg/667m2, potassium chloride 7kg/667m2.(3) boot stage applies urea 10kg/667m2, monoammonium phosphate 7kg/667m2, chlorination
Potassium 7kg/667m2.(4) heading stage applies urea 10kg/667m2, monoammonium phosphate 7kg/667m2, potassium chloride 7kg/667m2。
Rice Cropping is carried out using water cultivating method on same plot, more same plot Rice In Drought Rice Nursery is planted and water plants rice selenium
As a result content see the table below 1.As can be known from Table 1, method using the present invention carries out rice nonirrigated farmland plantation, and the Se content of rice exists
More than 0.1mg/kg, average value 0.11mg/kg, far above the Se content of rice obtained using light water cultivating method.
Table 1
Specific embodiments of the present invention are described in detail above, but it is intended only as example, it is of the invention and unlimited
It is formed on particular embodiments described above.To those skilled in the art, it is any to the equivalent modifications that carry out of the present invention and
It substitutes also all among scope of the invention.Therefore, the impartial conversion made without departing from the spirit and scope of the invention and
Modification, all should be contained within the scope of the invention.
Claims (5)
1. a kind of natural selenium-rich rice nonirrigated farmland method for planting, which is characterized in that include the following steps：
(1) selection of land
Selection has irrigation conditions, topography flat, in flakes, and more than soil fertility is medium, water retention property is good, the ground of PH 5.5-7.0
Block, total Se content >=0.3 mg/kg of soil；
(2) crop field prepares
Site preparation makes topsoil soils smooth, soft, fine crushing；Then laying drip irrigation zone and mulch, the spaced 38-42cm of every trickle irrigation,
Plastic film mulch is open and flat tight；
(3) it sows
Application rate：Application rate is 2-3kg/667m2, bunch planting, often kernal number is averaged 6-8 under cave；Seeding method：Break ground film spot
It broadcasts in trickle irrigation both sides 9-11cm positions, depth of planting ensures Planting Row Distance in 18-22cm, spacing in the rows control in 2.0-2.5cm
In 18-22cm, emergence of after planting dripping in time；
(4) fertilizer and water management
Breeding time generally drips weekly 1 water, and drip 40-50m every time3/667m2, while suitably reduced according to rain fall and dripped time
Number and water consumption ensure soil relative water content more than 80%；
Rice entire breeding time co-administers 4 fertilizer, and applications of water soluble fertilizers is applied with water droplet.
2. a kind of natural selenium-rich rice nonirrigated farmland method for planting according to claim 1, which is characterized in that including following step
Suddenly：
(1) selection of land
Selection has irrigation conditions, topography flat, in flakes, and more than soil fertility is medium, water retention property is good, pH value in faintly acid extremely
Neutral plot, total Se content >=0.3 mg/kg of soil；
(2) crop field prepares
Site preparation makes topsoil soils smooth, soft, fine crushing；Then drip irrigation zone and mulch, the spaced 38-42cm of every trickle irrigation are laid with
Left and right, plastic film mulch is open and flat tight, and full-film covering is realized on cultivation ground；
(3) it sows
Application rate：Application rate is 2-3kg/667m2, bunch planting, often kernal number is averaged 6-8 under cave；Seeding method：Break ground film spot
It broadcasts in trickle irrigation both sides 10cm right positions, depth of planting ensures Planting Row Distance in 20cm or so, spacing in the rows in 2.0-2.5cm
Control is in 20cm or so, emergence of after planting dripping in time；
(4) fertilizer and water management
Fully drip before emergence, keep soil relative water content more than 90%, after emergence to harvest it is previous as drip weekly 1 time
Water, drip 40-50m every time3/667m2, while drip number and water consumption are suitably reduced according to rain fall, keep soil opposite
Water content is more than 80%；
Rice entire breeding time co-administers 4 fertilizer, and applications of water soluble fertilizers is applied with water droplet.
3. a kind of natural selenium-rich rice nonirrigated farmland method for planting according to claim 1 or 2, which is characterized in that rice is entire
Breeding time co-administers 4 fertilizer, respectively：(1) seedling stage applies urea 6-8kg/667m2, monoammonium phosphate 2.5-.35kg/667m2,
Potassium chloride 2.5-3.5kg/667m2.(2) tillering stage applies urea 9-11kg/667m2, monoammonium phosphate 6.5-7.5kg/667m2, chlorine
Change potassium 6.5-7.5kg/667m2.(3) boot stage applies urea 9-11kg/667m2, monoammonium phosphate 6.5-7.5kg/667m2, chlorination
Potassium 6.5-7.5kg/667m2.(4) heading stage applies urea 9-11kg/667m2, monoammonium phosphate 6.5-7.5kg/667m2, potassium chloride
6.5-7.5kg/667m2。
4. a kind of natural selenium-rich rice nonirrigated farmland method for planting according to claim 3, which is characterized in that rice is entirely given birth to
Phase co-administers 4 fertilizer, respectively：(1) seedling stage applies urea 7kg/667m2, monoammonium phosphate 3kg/667m2, potassium chloride 3kg/
667m2.(2) tillering stage applies urea 10kg/667m2, monoammonium phosphate 7kg/667m2, potassium chloride 7kg/667m2.(3) boot stage
Using urea 10kg/667m2, monoammonium phosphate 7kg/667m2, potassium chloride 7kg/667m2.(4) heading stage applies urea 10kg/
667m2, monoammonium phosphate 7kg/667m2, potassium chloride 7kg/667m2。
5. a kind of natural selenium-rich rice nonirrigated farmland method for planting according to claim 1 or 2, which is characterized in that selection of land selects
PH value is the plot of 5.5-7.0.
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| CN115399207A (en) * | 2022-09-06 | 2022-11-29 | 黑龙江八一农垦大学 | Dry land rice cultivation method |
| CN116569799A (en) * | 2023-04-04 | 2023-08-11 | 青海省第五地质勘查院 | Cultivation and judgment method of natural selenium-enriched millet |
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| CN108235902B (en) | 2022-05-17 |
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