CN104521645A - A high-yield cultivation method of organic selenium-enriched rice - Google Patents
A high-yield cultivation method of organic selenium-enriched rice Download PDFInfo
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- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
- A01C1/08—Immunising seed
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
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Abstract
The present invention belongs to the field of agricultural cultivation technology, and particularly relates to a high-yield cultivation method of organic selenium-enriched rice. The method includes the following steps: A, selecting rice seeds and sterilizing the rice seeds; B, arranging rice seedling beds; C, sowing the rice seeds and cultivating rice seedlings; D, preparing a large field; E, transplanting the rice seedlings; F, managing the field; and J, harvesting the rice. Insect disinfestation for the rice seeds is carried out using Tripterygium wilfordii extracts; meanwhile, Tripterygium wilfordii extracts are used to dissolve the selenium and biological pesticides in the rice production process, and further improvements on the prevention and control of plant diseases and insect pests are realized in the overall growth process of the organic selenium-enriched rice. Instead of chemical fertilizers, bio-organic fertilizers are used in the rice cultivating process, which ensures a variety of nutrients required in the rice cultivating process and improves the rice yields. The rice yields and the selenium content of the organic selenium-enriched rice are higher than those of rice planted with traditional cultivation technology, and pesticide residues are significantly lower than that of the rice planted with the traditional cultivation technology.
Description
Technical field
The invention belongs to agricultural plantation technology field, be specifically related to a kind of high-yield planting method of organic Se-rich paddy rice.
Background technology
Paddy rice is the staple food crop of China, and in In Middle And Lower Reaches of Changjiang River, the southeastern coastal areas and some Heilongjiangdistrict are all staple food with rice.China is populous, and paddy rice demand is large, and consumption is many per capita.Repeatedly go wrong rice in recent years, and the poisonous cadmium rice etc. as Hunan area has beaten alarm bell for the food-safety problem of people to rice staple food.Meanwhile, along with the raising of people's living standard, people are more and more higher with the requirement of safety to the nutrition of food, and general rice product is due to the uncontrolled use of production process Pesticides chemical fertilizer, and the food security performance of general rice cannot be effectively guaranteed.Along with the increase of health of people consciousness, organic products enjoys favor in the world, and rice is as the daily staple food of people, and the production of organic paddy rice seems more important.In recent years, organic rice sold well in market at home, and domestic organic rice cultivated area continues to increase, and organic conversion area also constantly rises.Domestic organic rice cultivated area in 2011 reaches 11.9 ten thousand hectares according to statistics, and the industry output value reaches 89.2 hundred million yuan.
Due to the important component part that selenium is some antioxidases and selenium-P albumen in animal and human's body, play a part balance oxidation reduction atmosphere in vivo, animal immunizing power can be improved, selenium is the hot issue in this field for immunity impact and the research of cancer prevention in the world, therefore, selenium can be used as animal feed trace mineral supplement, also in vegetable manure, adds trace element fertilizer, improves agricultural byproducts selenium content.At present, adult's intake that Chinese Soclety of Nutrition is recommended is 50-250 microgram every day, and China's 2/3 regional selenium intake is lower than minimum recommended value, and therefore, China is an existing selenium resource of enriching, and there is again large area selenium deficiency area.Therefore, Se content in Ti Guo China resident meals, starts with from staple food, improves Se content in staple food, significant for improving China resident Food Selenium intake.
Summary of the invention
For solving the problem, the present invention aims to provide the high-yield planting technology of a kind of organic Se-rich paddy rice, and the present invention is achieved through the following technical solutions:
A high-yield planting method for organic Se-rich paddy rice, comprises the following steps:
A: seed selection sterilization: the rice paddy seed selecting full grains, dry, press solid-liquid ratio 1: 2 with thunder godvine leaching liquor and soak 3-5h, pull out after immersion after draining away the water and dry by pulling out after solid-liquid ratio 1: 1.3 immersion 2h with the sodium selenate solution of 0.1%, obtain sterilization seed rice, for subsequent use; Wherein said thunder godvine leaching liquor obtains by the following method: thunder godvine is crushed to 80 orders, adds clear water by solid-liquid ratio 1: 15-35, and soak 10-15h, filter and remove residue, obtains thunder godvine extract;
B: rice seedling bed arranges: select smooth plot to do rice seedling bed, select the sunny period, be exposed to the sun after turning over rice seedling bed 2-3 days, executes biological organic fertilizer 3kg/m
2, grade, sprinkling irrigation is watered, and makes soil moisture content be 30%-40%, sprays the thunder godvine leaching liquor in steps A, increases soil moisture content to more than 40%-45%, for subsequent use;
C: seeding and seedling raising: the ratio sowed in 1: 450 of waiting in steps A is admixed Producing Strain, be sown in the rice seedling bed in step B afterwards, on cover the thick Nutrition Soil of 2-3cm, plastic mulching, temperature daytime in artificial controlled masking is 20-25 DEG C, evening temperature 15-22 DEG C, and rice seedling grows to after the first leaf launches takes off film, water, mix the sodium selenate solution that concentration is 0.05% simultaneously; Wherein said Nutrition Soil is prepared from by following steps: get non-irrigated soil and smash to 20-30 order, and mass ratio 1: 12-18 adds biological organic fertilizer, waters permeable, dries and obtain Nutrition Soil;
D: land for growing field crops prepares: build the ridge, ridge height about 50cm, then plays furrow by face, field wholely, and furrow face height about 20cm, applies large Tanaka by biological organic fertilizer by 250-350kg/ mu, waters water level needed for sufficient water to rice transplanting;
E: rice transplanting: the rice shoot that in step C, nursery completes inserts large Tanaka, rice transplanting specification is 10 ~ 15 × 10 ~ 15cm;
F: field management: in growth process of riceplant, tillering stage keeps field water level to be 3-5cm, the sodium selenate of late tillering state foliage spray 0.05%, heading stage, mu used 70-90kg biological organic fertilizer, water to water surface elevation 3-5cm after field water falls naturally, spray biopesticide, spray the sodium selenate solution of 2.5%; Heading stage notes insect protected, uses biological organic fertilizer 30-50kg for every mu simultaneously, sprays the sodium selenate solution of 1.5% simultaneously; The sodium selenate solution of pustulation period sprinkling 1.0%, using granulated fertilizer mu amount of application is 30-50kg;
J: results: gather in the crops after paddy rice maturation, obtain organic Se-rich rice.
Wherein, the biological organic fertilizer used in planting process is prepared from by following steps: (1) prepares Chinese milk vetch 10-20 part, thunder godvine 5-10 part, leached tea oil slag 20-30 part, rapeseed dregs 20-30 part, corn straw 35-50 part is by Chinese milk vetch, thunder godvine, corn straw chopping to the segment of 2-3cm, for subsequent use; (2) by after each raw material blending in step (1), add sodium selenate 0.02-0.1 part, EM microbial inoculum 0.01-0.05 part, adjustment moisture, namely Chi Dui fermentation obtains required biological organic fertilizer after becoming thoroughly decomposed completely.
Wherein, described biopesticide is one or more equal amount of mixture in nimbin, Celastrus angulatus, chrysanthemum ester, rotenone.
Concrete, described biopesticide, sodium selenate solution all adopt thunder godvine leaching liquor to prepare.
The present invention's not applying pesticides chemical fertilizer from strict seed selection planting process, adopts thunder godvine leaching liquor to carry out disinfection to seed rice, kills some pests such as the insect in seed rice, ensure germination rate and seed rice safety.In immersion process except soaking with thunder godvine leaching liquor, also adopt sodium selenate solution to soak, seed rice ensures after suctioning moisture that the Se content of seed rice itself is higher than common seed rice, can by selenium element absorption in germination process, change into the selenium composition in plant corpus, improve Se content from Seedling Stage.Strictly control fertilization of rice amount and sodium selenate spray solution period for paddy growth characteristic, reduce workload, the fertilising shot the arrow at the target, ensure the demand of plant and the accumulation of beneficiating ingredient in process of growth.To sum up, rice cultivation of the present invention belongs to pure organic paddy rice, and nutrient component is high, and product selenium content is high, and output is high.
Embodiment
Below in conjunction with embodiment, the present invention will be further described; it is to be noted that following embodiment is only the indicative explaination that the mode that exemplifies is done the present invention; but protection scope of the present invention is not limited in this, all those skilled in the art all fall into protection scope of the present invention with the replacement of spirit of the present invention to the equivalence that the present invention does.
Embodiment 1
A high-yield planting method for organic Se-rich paddy rice, comprises the following steps:
A: seed selection sterilization: the rice paddy seed selecting full grains, dry, press solid-liquid ratio 1: 2 with thunder godvine leaching liquor and soak 3h, pull out after immersion after draining away the water and dry by pulling out after solid-liquid ratio 1: 1.3 immersion 2h with the sodium selenate solution of 0.1%, obtain sterilization seed rice, for subsequent use; Wherein, described thunder godvine leaching liquor obtains by the following method: thunder godvine is crushed to 80 orders, adds clear water by solid-liquid ratio 1: 15, and soak 10h, filter and remove residue, obtains thunder godvine extract;
B: rice seedling bed arranges: select smooth plot to do rice seedling bed, select the sunny period, be exposed to the sun after turning over rice seedling bed 2-3 days, executes biological organic fertilizer 3kg/m
2, grade, sprinkling irrigation is watered, and makes soil moisture content be 30%-40%, sprays the thunder godvine leaching liquor in steps A, increases soil moisture content, and measuring soil water content is 40.0%, for subsequent use;
C: seeding and seedling raising: the ratio sowed in 1: 450 of waiting in steps A is admixed Producing Strain, be sown in the rice seedling bed in step B afterwards, on cover the thick Nutrition Soil of 2-3cm, plastic mulching, temperature daytime in artificial controlled masking is 20-25 DEG C, evening temperature 15-22 DEG C, and rice seedling grows to after the first leaf launches takes off film, water, mix the sodium selenate solution that concentration is 0.05% simultaneously; Wherein said Nutrition Soil is prepared from by following steps: get non-irrigated soil and smash to 20 orders, and mass ratio 1: 12 adds biological organic fertilizer, waters permeable, dries and obtain Nutrition Soil;
D: land for growing field crops prepares: build the ridge, ridge height about 50cm, then plays furrow by face, field wholely, and furrow face height about 20cm, applies large Tanaka by biological organic fertilizer by 250kg/ mu, waters water level needed for sufficient water to rice transplanting;
E: rice transplanting: the rice shoot that in step C, nursery completes inserts large Tanaka, rice transplanting specification is 10 ~ 15 × 10 ~ 15cm;
F: field management: in growth process of riceplant, tillering stage keeps field water level to be 3-5cm, the sodium selenate solution of late tillering state foliage spray 0.05%, heading stage, mu used 70kg biological organic fertilizer, water to water surface elevation 3-5cm after field water falls naturally, spray nimbin insect protected, nimbin thunder godvine leaching liquor dissolves.Spray the sodium selenate solution of 2.5%; Heading stage notes insect protected, uses biological organic fertilizer 30kg for every mu simultaneously, sprays the sodium selenate solution of 1.5% simultaneously; The sodium selenate solution of pustulation period sprinkling 1.0%, using granulated fertilizer mu amount of application is 30kg;
J: results: gather in the crops after paddy rice maturation, obtain organic Se-rich rice.
Biological organic fertilizer is prepared from by following steps: (1) prepares Chinese milk vetch 10 parts, thunder godvine 5 parts, leached tea oil slag 20 parts, rapeseed dregs 20 parts, corn straw 35 parts, by Chinese milk vetch, thunder godvine, corn straw chopping to the segment of 2-3cm, for subsequent use; (2) by after each raw material blending in step (1), add sodium selenate 0.02 part, EM microbial inoculum 0.01 part, adjustment moisture, namely Chi Dui fermentation obtains required biological organic fertilizer after becoming thoroughly decomposed completely.
The sodium selenate solution used in planting process all adopts thunder godvine leaching liquor to be configured.
The rice quality of the present embodiment plantation is as shown in table 1.
The index of correlation of table 1 the present embodiment rice cultivation
Inapplicable agriculture chemical in the present embodiment planting process as can be seen from Table 1, pure biological organic fertilizer is adopted to carry out the management of topdressing of each vegetative stage, detect that paddy rice that the present embodiment plants is apparently higher than traditional cultivation method, and Se content is planted apparently higher than tradition, detect that persticide residue is starkly lower than traditional planting technology.
Embodiment 2
A high-yield planting method for organic Se-rich paddy rice, comprises the following steps:
A: seed selection sterilization: the rice paddy seed selecting full grains, dry, press solid-liquid ratio 1: 2 with thunder godvine leaching liquor and soak 4h, pull out after immersion after draining away the water and dry by pulling out after solid-liquid ratio 1: 1.3 immersion 2h with the sodium selenate solution of 0.1%, obtain sterilization seed rice, for subsequent use; Wherein said thunder godvine leaching liquor obtains by the following method: thunder godvine is crushed to 80 orders, adds clear water by solid-liquid ratio 1: 25, and soak 15h, filter and remove residue, obtains thunder godvine extract;
B: rice seedling bed arranges: select smooth plot to do rice seedling bed, select the sunny period, be exposed to the sun after turning over rice seedling bed 2-3 days, executes biological organic fertilizer 3kg/m
2, grade, sprinkling irrigation is watered, and makes soil moisture content be 30%-40%, sprays the thunder godvine leaching liquor in steps A, increases soil moisture content to more than 42%, for subsequent use;
C: seeding and seedling raising: the ratio sowed in 1: 450 of waiting in steps A is admixed Producing Strain, be sown in the rice seedling bed in step B afterwards, on cover the thick Nutrition Soil of 2-3cm, plastic mulching, temperature daytime in artificial controlled masking is 20-25 DEG C, evening temperature 15-22 DEG C, and rice seedling grows to after the first leaf launches takes off film, water, mix the sodium selenate solution that concentration is 0.05% simultaneously; Wherein said Nutrition Soil is prepared from by following steps: get non-irrigated soil and smash to 30 orders, and mass ratio 1: 15 adds biological organic fertilizer, waters permeable, dries and obtain Nutrition Soil;
D: land for growing field crops prepares: build the ridge, ridge height about 50cm, then plays furrow by face, field wholely, and furrow face height about 20cm, applies large Tanaka by biological organic fertilizer by 300kg/ mu, waters water level needed for sufficient water to rice transplanting;
E: rice transplanting: the rice shoot that in step C, nursery completes inserts large Tanaka, rice transplanting specification is 10 ~ 15 × 10 ~ 15cm;
F: field management: in growth process of riceplant, tillering stage keeps field water level to be 3-5cm, the sodium selenate of late tillering state foliage spray 0.05%, heading stage, mu used 80kg biological organic fertilizer, water to water surface elevation 4cm after field water falls naturally, spray biopesticide Celastrus angulatus, spray the sodium selenate solution of 2.5%; Heading stage notes insect protected, uses biological organic fertilizer 40kg for every mu simultaneously, sprays the sodium selenate solution of 1.5% simultaneously; The sodium selenate solution of pustulation period sprinkling 1.0%, using granulated fertilizer mu amount of application is 40kg;
J: results: gather in the crops after paddy rice maturation, obtain organic Se-rich rice.
The biological organic fertilizer used in planting process is prepared from by following steps: (1) prepares Chinese milk vetch 15 parts, thunder godvine 8 parts, leached tea oil slag 25 parts, rapeseed dregs 25 parts, corn straw 40 parts, by Chinese milk vetch, thunder godvine, corn straw chopping to the segment of 2-3cm, for subsequent use; (2) by after each raw material blending in step (1), add sodium selenate 0.05 part, EM microbial inoculum 0.03 part, adjustment moisture, namely Chi Dui fermentation obtains required biological organic fertilizer after becoming thoroughly decomposed completely.
In planting process, biopesticide, sodium selenate solution all adopt thunder godvine leaching liquor to prepare.
The index of correlation of table 2 the present embodiment rice cultivation
Inapplicable agriculture chemical in the present embodiment planting process as can be seen from Table 2, pure biological organic fertilizer is adopted to carry out the management of topdressing of each vegetative stage, detect that paddy rice that the present embodiment plants is apparently higher than traditional cultivation method, and Se content is planted apparently higher than tradition, detect that persticide residue is starkly lower than traditional planting technology.
Embodiment 3
A: seed selection sterilization: the rice paddy seed selecting full grains, dry, press solid-liquid ratio 1: 2 with thunder godvine leaching liquor and soak 5h, pull out after immersion after draining away the water and dry by pulling out after solid-liquid ratio 1: 1.3 immersion 2h with the sodium selenate solution of 0.1%, obtain sterilization seed rice, for subsequent use; Wherein said thunder godvine leaching liquor obtains by the following method: thunder godvine is crushed to 80 orders, adds clear water by solid-liquid ratio 1: 25, and soak 15h, filter and remove residue, obtains thunder godvine extract;
B: rice seedling bed arranges: select smooth plot to do rice seedling bed, select the sunny period, be exposed to the sun after turning over rice seedling bed 2-3 days, executes biological organic fertilizer 3kg/m
2, grade, sprinkling irrigation is watered, and makes soil moisture content be 30%-40%, sprays the thunder godvine leaching liquor in steps A, increases soil moisture content to more than 45%, for subsequent use;
C: seeding and seedling raising: the ratio sowed in 1: 450 of waiting in steps A is admixed Producing Strain, be sown in the rice seedling bed in step B afterwards, on cover the thick Nutrition Soil of 2-3cm, plastic mulching, temperature daytime in artificial controlled masking is 20-25 DEG C, evening temperature 15-22 DEG C, and rice seedling grows to after the first leaf launches takes off film, water, mix the sodium selenate solution that concentration is 0.05% simultaneously; Wherein said Nutrition Soil is prepared from by following steps: get non-irrigated soil and smash to 20 orders, and mass ratio 1: 18 adds biological organic fertilizer, waters permeable, dries and obtain Nutrition Soil;
D: land for growing field crops prepares: build the ridge, ridge height about 50cm, then plays furrow by face, field wholely, and furrow face height about 20cm, applies large Tanaka by biological organic fertilizer by 350kg/ mu, waters water level needed for sufficient water to rice transplanting;
E: rice transplanting: the rice shoot that in step C, nursery completes inserts large Tanaka, rice transplanting specification is 10 ~ 15 × 10 ~ 15cm;
F: field management: in growth process of riceplant, tillering stage keeps field water level to be 3-5cm, the sodium selenate of late tillering state foliage spray 0.05%, heading stage, mu used 90kg biological organic fertilizer, water to water surface elevation 3-5cm after field water falls naturally, spray biopesticide chrysanthemum ester, spray the sodium selenate solution of 2.5%; Heading stage notes insect protected, uses biological organic fertilizer 50kg for every mu simultaneously, sprays the sodium selenate solution of 1.5% simultaneously; The sodium selenate solution of pustulation period sprinkling 1.0%, using granulated fertilizer mu amount of application is 50kg;
J: results: gather in the crops after paddy rice maturation, obtain organic Se-rich rice.
Wherein, the biological organic fertilizer used in planting process is prepared from by following steps: (1) prepares Chinese milk vetch 20 parts, thunder godvine 10 parts, leached tea oil slag 30 parts, rapeseed dregs 30 parts, corn straw 50 parts, by Chinese milk vetch, thunder godvine, corn straw chopping to the segment of 2-3cm, for subsequent use; (2) by after each raw material blending in step (1), add sodium selenate 0.1 part, EM microbial inoculum 0.05 part, adjustment moisture, namely Chi Dui fermentation obtains required biological organic fertilizer after becoming thoroughly decomposed completely.
The index of correlation of table 3 the present embodiment rice cultivation
Inapplicable agriculture chemical in the present embodiment planting process as can be seen from Table 3, pure biological organic fertilizer is adopted to carry out the management of topdressing of each vegetative stage, detect that paddy rice that the present embodiment plants is apparently higher than traditional cultivation method, and Se content is planted apparently higher than tradition, detect that persticide residue is starkly lower than traditional planting technology.
Embodiment 4
A: seed selection sterilization: the rice paddy seed selecting full grains, dry, press solid-liquid ratio 1: 2 with thunder godvine leaching liquor and soak 5h, pull out after immersion after draining away the water and dry by pulling out after solid-liquid ratio 1: 1.3 immersion 2h with the sodium selenate solution of 0.1%, obtain sterilization seed rice, for subsequent use; Wherein said thunder godvine leaching liquor obtains by the following method: thunder godvine is crushed to 80 orders, adds clear water by solid-liquid ratio 1: 35, and soak 14h, filter and remove residue, obtains thunder godvine extract;
B: rice seedling bed arranges: select smooth plot to do rice seedling bed, select the sunny period, be exposed to the sun after turning over rice seedling bed 2-3 days, executes biological organic fertilizer 3kg/m
2, grade, sprinkling irrigation is watered, and makes soil moisture content be 30%-40%, sprays the thunder godvine leaching liquor in steps A, increases soil moisture content to more than 44%, for subsequent use;
C: seeding and seedling raising: the ratio sowed in 1: 450 of waiting in steps A is admixed Producing Strain, be sown in the rice seedling bed in step B afterwards, on cover the thick Nutrition Soil of 2-3cm, plastic mulching, temperature daytime in artificial controlled masking is 20-25 DEG C, evening temperature 15-22 DEG C, and rice seedling grows to after the first leaf launches takes off film, water, mix the sodium selenate solution that concentration is 0.05% simultaneously; Wherein said Nutrition Soil is prepared from by following steps: get non-irrigated soil and smash to 20 orders, and mass ratio 1: 15 adds biological organic fertilizer, waters permeable, dries and obtain Nutrition Soil;
D: land for growing field crops prepares: build the ridge, ridge height about 50cm, then plays furrow by face, field wholely, and furrow face height about 20cm, applies large Tanaka by biological organic fertilizer by 320kg/ mu, waters water level needed for sufficient water to rice transplanting;
E: rice transplanting: the rice shoot that in step C, nursery completes inserts large Tanaka, rice transplanting specification is 10 ~ 15 × 10 ~ 15cm;
F: field management: in growth process of riceplant, tillering stage keeps field water level to be 3-5cm, the sodium selenate of late tillering state foliage spray 0.05%, heading stage, mu used 90kg biological organic fertilizer, water to water surface elevation 3-5cm after field water falls naturally, spray biopesticide rotenone, spray the sodium selenate solution of 2.5%; Heading stage notes insect protected, uses biological organic fertilizer 50kg for every mu simultaneously, sprays the sodium selenate solution of 1.5% simultaneously; The sodium selenate solution of pustulation period sprinkling 1.0%, using granulated fertilizer mu amount of application is 50kg;
J: results: gather in the crops after paddy rice maturation, obtain organic Se-rich rice.
Wherein, the biological organic fertilizer used in planting process is prepared from by following steps: (1) prepares Chinese milk vetch 17 parts, thunder godvine 8 parts, leached tea oil slag 28 parts, rapeseed dregs 26 parts, corn straw 49 parts, by Chinese milk vetch, thunder godvine, corn straw chopping to the segment of 2-3cm, for subsequent use; (2) by after each raw material blending in step (1), add sodium selenate 0.1 part, EM microbial inoculum 0.05 part, adjustment moisture, namely Chi Dui fermentation obtains required biological organic fertilizer after becoming thoroughly decomposed completely.
Embodiment 5
A high-yield planting method for organic Se-rich paddy rice, comprises the following steps:
A: seed selection sterilization: the rice paddy seed selecting full grains, dry, press solid-liquid ratio 1: 2 with thunder godvine leaching liquor and soak 3h, pull out after immersion after draining away the water and dry by pulling out after solid-liquid ratio 1: 1.3 immersion 2h with the sodium selenate solution of 0.1%, obtain sterilization seed rice, for subsequent use; Wherein, described thunder godvine leaching liquor obtains by the following method: thunder godvine is crushed to 80 orders, adds clear water by solid-liquid ratio 1: 15, and soak 10h, filter and remove residue, obtains thunder godvine extract;
B: rice seedling bed arranges: select smooth plot to do rice seedling bed, select the sunny period, be exposed to the sun after turning over rice seedling bed 2-3 days, executes biological organic fertilizer 3kg/m
2, grade, sprinkling irrigation is watered, and makes soil moisture content be 30%-40%, sprays the thunder godvine leaching liquor in steps A, increases soil moisture content, and measuring soil water content is 40.0%, for subsequent use;
C: seeding and seedling raising: the ratio sowed in 1: 450 of waiting in steps A is admixed Producing Strain, be sown in the rice seedling bed in step B afterwards, on cover the thick Nutrition Soil of 2-3cm, plastic mulching, temperature daytime in artificial controlled masking is 20-25 DEG C, evening temperature 15-22 DEG C, and rice seedling grows to after the first leaf launches takes off film, water, mix the sodium selenate solution that concentration is 0.05% simultaneously; Wherein said Nutrition Soil is prepared from by following steps: get non-irrigated soil and smash to 20 orders, and mass ratio 1: 12 adds biological organic fertilizer, waters permeable, dries and obtain Nutrition Soil;
D: land for growing field crops prepares: build the ridge, ridge height about 50cm, then plays furrow by face, field wholely, and furrow face height about 20cm, applies large Tanaka by biological organic fertilizer by 250kg/ mu, waters water level needed for sufficient water to rice transplanting;
E: rice transplanting: the rice shoot that in step C, nursery completes inserts large Tanaka, rice transplanting specification is 10 ~ 15 × 10 ~ 15cm
F: field management: in growth process of riceplant, tillering stage keeps field water level to be 3-5cm, the sodium selenate solution of late tillering state foliage spray 0.05%, heading stage, mu used 70kg biological organic fertilizer, water to water surface elevation 3-5cm after field water falls naturally, spray nimbin, Celastrus angulatus, chrysanthemum ester, rotenone four kinds of equal amount of mixture insect protected, nimbin thunder godvine leaching liquor dissolves.Spray the sodium selenate solution of 2.5%; Heading stage notes insect protected, uses biological organic fertilizer 30kg for every mu simultaneously, sprays the sodium selenate solution of 1.5% simultaneously; The sodium selenate solution of pustulation period sprinkling 1.0%, using granulated fertilizer mu amount of application is 30kg;
J: results: gather in the crops after paddy rice maturation, obtain organic Se-rich rice.
Biological organic fertilizer is prepared from by following steps: (1) prepares Chinese milk vetch 10 parts, thunder godvine 5 parts, leached tea oil slag 20 parts, rapeseed dregs 20 parts, corn straw 35 parts, by Chinese milk vetch, thunder godvine, corn straw chopping to the segment of 2-3cm, for subsequent use; (2) by after each raw material blending in step (1), add sodium selenate 0.02 part, EM microbial inoculum 0.01 part, adjustment moisture, namely Chi Dui fermentation obtains required biological organic fertilizer after becoming thoroughly decomposed completely.
The sodium selenate solution used in planting process all adopts thunder godvine leaching liquor to be configured.
Claims (4)
1. a high-yield planting method for organic Se-rich paddy rice, is characterized in that comprising the following steps:
A: seed selection sterilization: the rice paddy seed selecting full grains, dry, press solid-liquid ratio 1: 2 with thunder godvine leaching liquor and soak 3-5h, pull out after immersion after draining away the water and dry by pulling out after solid-liquid ratio 1: 1.3 immersion 2h with the sodium selenate solution of 0.1%, obtain sterilization seed rice, for subsequent use; Wherein said thunder godvine leaching liquor obtains by the following method: thunder godvine is crushed to 80 orders, adds clear water by solid-liquid ratio 1: 15-35, and soak 10-15h, filter and remove residue, obtains thunder godvine extract;
B: rice seedling bed arranges: select smooth plot to do rice seedling bed, select the sunny period, be exposed to the sun after turning over rice seedling bed 2-3 days, executes biological organic fertilizer 3kg/m
2, grade, sprinkling irrigation is watered, and makes soil moisture content be 30%-40%, sprays the thunder godvine leaching liquor in steps A, increases soil moisture content to more than 40%-45%, for subsequent use;
C: seeding and seedling raising: the ratio sowed in 1: 450 of waiting in steps A is admixed Producing Strain, be sown in the rice seedling bed in step B afterwards, on cover the thick Nutrition Soil of 2-3cm, plastic mulching, temperature daytime in artificial controlled masking is 20-25 DEG C, evening temperature 15-22 DEG C, and rice seedling grows to after the first leaf launches takes off film, water, mix the sodium selenate solution that concentration is 0.05% simultaneously; Wherein said Nutrition Soil is prepared from by following steps: get non-irrigated soil and smash to 20-30 order, and mass ratio 1: 12-18 adds biological organic fertilizer, waters permeable, dries and obtain Nutrition Soil;
D: land for growing field crops prepares: build the ridge, ridge height about 50cm, then plays furrow by face, field wholely, and furrow face height about 20cm, applies large Tanaka by biological organic fertilizer by 250-350kg/ mu, waters water level needed for sufficient water to rice transplanting;
E: rice transplanting: the rice shoot that in step C, nursery completes inserts large Tanaka, rice transplanting specification is 10 ~ 15 × 10 ~ 15cm;
F: field management: in growth process of riceplant, tillering stage keeps field water level to be 3-5cm, the sodium selenate of late tillering state foliage spray 0.05%, heading stage, mu used 70-90kg biological organic fertilizer, water to water surface elevation 3-5cm after field water falls naturally, spray biopesticide, spray the sodium selenate solution of 2.5%; Heading stage notes insect protected, uses biological organic fertilizer 30-50kg for every mu simultaneously, sprays the sodium selenate solution of 1.5% simultaneously; The sodium selenate solution of pustulation period sprinkling 1.0%, using granulated fertilizer mu amount of application is 30-50kg; J: results: gather in the crops after paddy rice maturation, obtain organic Se-rich rice.
2. the high-yield planting method of a kind of organic Se-rich paddy rice as claimed in claim 1, it is characterized in that the biological organic fertilizer used in planting process is prepared from by following steps: (1) prepares Chinese milk vetch 10-20 part, thunder godvine 5-10 part, leached tea oil slag 20-30 part, rapeseed dregs 20-30 part, corn straw 35-50 part is by Chinese milk vetch, thunder godvine, corn straw chopping to the segment of 2-3cm, for subsequent use; (2) by after each raw material blending in step (1), add sodium selenate 0.02-0.1 part, EM microbial inoculum 0.01-0.05 part, adjustment moisture, namely Chi Dui fermentation obtains required biological organic fertilizer after becoming thoroughly decomposed completely.
3. the high-yield planting method of a kind of organic Se-rich paddy rice as claimed in claim 1, the biopesticide that it is characterized in that described in step F is one or more equal amount of mixture in nimbin, Celastrus angulatus, chrysanthemum ester, rotenone.
4. the high-yield planting method of a kind of organic Se-rich paddy rice as claimed in claim 1, is characterized in that described biopesticide, sodium selenate solution all adopts thunder godvine leaching liquor to prepare.
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