CN104402606A - Cadmium inhibiting rice nutritional agent as well as preparation method and application method thereof - Google Patents
Cadmium inhibiting rice nutritional agent as well as preparation method and application method thereof Download PDFInfo
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- CN104402606A CN104402606A CN201410665781.6A CN201410665781A CN104402606A CN 104402606 A CN104402606 A CN 104402606A CN 201410665781 A CN201410665781 A CN 201410665781A CN 104402606 A CN104402606 A CN 104402606A
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- cadmium
- rice
- mother liquor
- nutrition agent
- paddy rice
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C11/00—Other nitrogenous fertilisers
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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
A cadmium inhibiting rice nutritional agent comprises 6%-10% of selenium yeast, 10%-25% of calcium amino acid, 50%-60% of No.1 mother liquor, 4%-12% of sodium silicate and 2%-5% of sodium bicarbonate. The invention provides a preparation method and an application method of the cadmium inhibiting rice nutritional agent. The cadmium inhibiting rice nutritional agent as well as the preparation method and the application method thereof has the benefits as follows: firstly, the cadmium content in rice is effectively reduced by about 40%; secondly, the operation simple and convenient, and the cost is low and is about 60 yuan per mu; and thirdly, the selenium content in rice seeds can be increased, and the nutritional agent is beneficial to health.
Description
Technical field
The invention belongs to agriculture environmental protection field; relate more specifically to a kind of cadmium that can effectively reduce to exceed standard the nutrition agent of rice field rice cadmium content; and a kind of preparation of suppress cadmium to exceed standard nutrition agent that rice field rice cadmium content exceeds standard, using method; it is applicable to the Rice Production in especially mild or moderate cadmium pollution area, vast heavy metal contamination area, and namely a kind of paddy rice presses down cadmium nutrition agent and preparation thereof, using method.
Background technology
" cadmium rice " be due to environmental pollution cause the rice of inherent " cadmium " composition severe overweight.Consume the populous of rice in China, the circulation trend of grain certainly will bring the number of consumption " cadmium rice " to increase.
2002, Ministry of Agriculture's rice and quality of item supervision and inspection center once carried out security sampling observation to national market rice.Result shows, the most serious heavy metal that exceeds standard in rice is plumbous, exceeding standard rate 28.4%, next is exactly cadmium, exceeding standard rate 10.3%, the security Examined display of 2011, the cadmium of 10% exceeds standard rice, the reality of basic reflection Contemporary China, China produces nearly 200,000,000 tons of rice per year, and namely 10% reach 2,000 ten thousand tons.
But along with the significantly development of economy, the problem of the heavy metal contamination that we face is more and more serious.It is one of great ecological problem of facing of the world today that heavy metals in farmland is polluted, and directly affects environmental quality, grain security even human survival, and that therefore reduces that heavy metals in farmland pollutes is significant.
Cadmium acute poisoning has the stomach and intestine such as vomiting, diarrhoea class symptom; Chronic poisoning has anaemia, jaundice, reproductive dysfunction, sterile, miscarriage, stillborn foetus; Osteodystrophy, walk, pain of standing, walk lamely, be easy to fracture, proteinuria.In addition, experimentation on animals shows, cadmium is carcinogenic, teratogenesis, mutagenesis in addition.The appearance of the cadmium rice event that exceeds standard, make human consumer worried, people are to the security more and more paying close attention to rice, and existing research has disclosed the present situation of cadmium environmental pollution, but in clinical position, the chronic cadium poisoning case that the environmental pollution that can confirm causes still more belongs to case.China's cadmium in foods tolerance limit regulation, " pollutants in food limitation " national standard (GB2762-2005) specifies rice cadmium content≤0.2 mg/kg.
At present, the Treatment process of paddy rice cadmium pollution mainly comprises: 1) the soil treatment research of cadmium pollution, and use with the cadmium in passivator fixing soil, such as field limes on producing, but falls cadmium effect not significantly, is not easy to spread; 2) taking to plant for the strong plant of cadmium element accumulation ability, by absorbing the cadmium element in soil, reducing the cadmium element in soil, this method is for cadmium moderate and serious pollution district DeGrain, and it is high to promote cost; 3) low cadmium adds up the research of rice varieties; 4) in the cultivation of Rice Cropping reduction cadmium element absorption, technical study is carried out.
Summary of the invention
In order to solve in above-mentioned prior art still Problems existing, the present invention proposes a kind of paddy rice and pressing down cadmium nutrition agent and preparation thereof, using method.
A kind of paddy rice presses down cadmium nutrition agent, and example comprises following composition by mass percentage:
Preferably, described 1# mother liquor obtains by saccharifying enzyme industrial fermentation waste liquid is treated.
In addition, the present invention proposes the preparation method that a kind of paddy rice presses down cadmium nutrition agent, comprise the steps:
1) thermal treatment: saccharifying enzyme industrial fermentation waste liquid is heat-treated;
2) filter: filter described step 1) process after liquid, obtain 1# mother liquor;
3) mix: described 1# mother liquor and described selenium enriched yeast, described water glass Homogeneous phase mixing, obtain 2# mother liquor;
4) pH regulator: add described sodium bicarbonate in described 2# mother liquor, regulates the pH value to 7.5 of described 2# mother liquor, obtains 3# mother liquor;
5) sterilizing: carry out sterilising treatment to described 3# mother liquor, obtains described a kind of paddy rice and presses down cadmium nutrition agent.
In addition, the invention allows for the using method that a kind of paddy rice presses down cadmium nutrition agent:
1) spray period: rice at whole growth periods blade spraying 3 times, but every mu sprays 60 kilograms cadmium nutrition agent solution at every turn, and first time, behind whole good field before rice transplanting, face, railway carriage or compartment sprayed; Second time carries out foliage-spray in rice plant of tillering stage, and third time sprayed at heading stage;
2) dilution of cadmium nutrition agent is pressed down: get 6 kilograms of paddy rice and press down cadmium nutrition agent thin up 5 ~ 10 times;
3) spraying method: select at fine day, cloudy day, keeps away dew mist and carries out foliage-spray, and even spraying is at blade back, and leaf surface, loses drop and drip to squirt and be as the criterion.
Preferably, described selenium enriched yeast is a kind of organoselenium, paddy rice is to the easy sorption enhanced of organoselenium, selenium is natural toxinicide, for heavy metal cadmium, lead has certain detoxification, selenium enriched yeast is after rice leaf absorbs, main with seleno-protein in plant body, the form of seleno-amino acids exists, selenium has 4 valence states, 0 valency,-divalent, + 4 valencys, + 6 valencys, organoselenium exists with-divalent, selenium is as electronegative nonmetallic ion, cadmium exists with the metal ion of+divalent in vivo, the selenium of in vivo-divalent can combine with the cadmium ion that has of+divalent, form the mixture of cadmium-selenium-protein, one is reduce paddy rice to the absorption of the cadmium element of soil intermediate ion state, but formation reduces the mixture of cadmium-selenium-protein to the travelling speed in seed, and selenium is the trace element of needed by human, the area of China 72% is in scarce selenium area, Chinese Soclety of Nutrition every day of recommending, the feed rate of selenium was 50-250ug/d in meals, the feed rate that China lacks selenium in the meals of selenium area is 26ug/d, the every day of recommending from Chinese Soclety of Nutrition in meals the minimum feed rate 50ug of selenium all poor very away from.Use paddy rice and press down the content that cadmium agent significantly improves selenium in rice.
Preferably, described saccharifying enzyme industrial fermentation waste liquid, it is the waste liquid after a kind of biological fermentation, general factory is discharged into rivers, contaminate environment, after testing, saccharifying enzyme fermented waste fluid contains abundant L-Ala (Ala) α-amino-isovaleric acid (Val) leucine (Leu) Isoleucine (Ile) proline(Pro) (Pro) phenylalanine (Phe) tryptophane (Trp) methionine(Met) (Met) tyrosine (Tyr) etc., to the effect strengthening the aspects such as paddy rice anti contravariance ability, short precocity, raising rice yield.In addition, amino acid is all than being easier to and heavy metal cadmium ionic bond, because the sequestering action in coordination, the amino acid of sulfydryl (-SH) more easily and heavy metal ion combination, can be turned waste into wealth, play the effects such as protection of the environment.
Preferably, described amino acid calcium, improve paddy soil available state calcium contents and plant above ground portion calcium nutritional status, adjusting and controlling rice plant calcium Nutrition and Metabolism approach, suppress the weak selective absorbing of mineral metal and movement system in rice plant, thus in suppression rice plant, absorb and transport the pathways metabolism of cadmium, reduce and control rice Cd accumulation.
Beneficial effect of the present invention, one is the content effectively reducing rice cadmium, and the amplitude that reduces is about 40%; Two is easy and simple to handle, with low cost, every mu about about 60 yuan; Three is to improve rice seed selenium content, good for health.
Invention accompanying drawing
Fig. 1 is preparation method's schema that described a kind of paddy rice presses down cadmium nutrition agent.
Embodiment
Specific embodiment 1
A kind of paddy rice presses down cadmium nutrition agent, and its composition of example comprises by mass percentage:
Specific embodiment 2
Paddy rice presses down a preparation method for cadmium nutrition agent, comprises the steps:
1) thermal treatment: saccharifying enzyme industrial fermentation waste liquid is heat-treated;
2) filter: filter described step 1) process after liquid, obtain described 1# mother liquor;
3) mix: amino acid calcium Homogeneous phase mixing described in water glass, 20% described in selenium enriched yeast, 8% described in 1# mother liquor and 8% described in 60%, obtains 2# mother liquor;
4) pH regulator: add sodium bicarbonate described in 4% in described 2# mother liquor, regulates the pH value to 7.5 of described 2# mother liquor, obtains 3# mother liquor;
5) sterilizing: carry out sterilising treatment to described 3# mother liquor, obtains described a kind of paddy rice and presses down cadmium nutrition agent.
Specific embodiment 3
Yiyang He Shan Rice Cropping Specialty Co-operative Organization production test, a kind of paddy rice presses down the using method of cadmium nutrition agent:
1) spray period: rice at whole growth periods blade spraying 3 times, but every mu sprays 60 kilograms cadmium nutrition agent solution at every turn, and first time, behind whole good field before rice transplanting, face, railway carriage or compartment sprayed; Second time carries out foliage-spray in rice plant of tillering stage, and third time sprayed at heading stage;
2) dilution of cadmium nutrition agent is pressed down: get 6 kilograms of paddy rice and press down cadmium nutrition agent thin up 5 times;
3) spraying method: select at fine day, cloudy day, keeps away dew mist and carries out foliage-spray, and even spraying is at blade back, and leaf surface, loses drop and drip to squirt and be as the criterion.
Specific embodiment 4
Yiyang He Shan Rice Cropping Specialty Co-operative Organization production test, a kind of paddy rice presses down the using method of cadmium nutrition agent:
1) spray period: rice at whole growth periods blade spraying 3 times, but every mu sprays 60 kilograms cadmium nutrition agent solution at every turn, and first time, behind whole good field before rice transplanting, face, railway carriage or compartment sprayed; Second time carries out foliage-spray in rice plant of tillering stage, and third time sprayed at heading stage;
2) dilution of cadmium nutrition agent is pressed down: get 6 kilograms of paddy rice and press down cadmium nutrition agent thin up 10 times;
3) spraying method: select at fine day, cloudy day, keeps away dew mist and carries out foliage-spray, and even spraying is at blade back, and leaf surface, loses drop and drip to squirt and be as the criterion.
After rice harvesting, disengaging is dried, and after shelling into polished rice, sample presentation detects, and result is as following table, and 5 times of thinning ratio treatment group and 10 times of thinning ratio treatment group reduce by 36%, 45% respectively relative to cadmium content in control group rice.：
Fig.1. one kind is pressed down the Cadmium Content of Rice (units:mg/kg) of cadmium nutrition agent at different extension rate
Claims (4)
1. a paddy rice presses down cadmium nutrition agent, it is characterized in that described nutrition agent by mass percentage example comprise following composition: selenium enriched yeast (6 ~ 10%), amino acid calcium (10 ~ 25%), 1# mother liquor (50 ~ 60%), water glass (4 ~ 12%), sodium bicarbonate (2 ~ 5%).
2. nutrition agent according to claim 1, is characterized in that described 1# mother liquor obtains by saccharifying enzyme industrial fermentation waste liquid is treated.
3. paddy rice presses down a preparation method for cadmium nutrition agent, it is characterized in that comprising the steps:
1) thermal treatment: saccharifying enzyme industrial fermentation waste liquid is heat-treated;
2) filter: filter described step 1) process after liquid, obtain described 1# mother liquor;
3) mix: described 1# mother liquor and described selenium enriched yeast, described water glass Homogeneous phase mixing, obtain 2# mother liquor;
4) pH regulator: add described sodium bicarbonate in described 2# mother liquor, regulates the pH value to 7.5 of described 2# mother liquor, obtains 3# mother liquor;
5) sterilizing: carry out sterilising treatment to described 3# mother liquor, obtains described a kind of paddy rice and presses down cadmium nutrition agent.
4. paddy rice presses down a using method for cadmium nutrition agent, it is characterized in that:
1) spray period: rice at whole growth periods blade spraying 3 times, but every mu sprays 60 kilograms cadmium nutrition agent solution at every turn, and first time, behind whole good field before rice transplanting, face, railway carriage or compartment sprayed; Second time carries out foliage-spray in rice plant of tillering stage, and third time sprayed at heading stage;
2) dilution of cadmium nutrition agent is pressed down: get 6 kilograms of paddy rice and press down cadmium nutrition agent thin up 5 ~ 10 times;
3) spraying method: select at fine day, cloudy day, keeps away dew mist and carries out foliage-spray, and even spraying is at blade back, and leaf surface, loses drop and drip to squirt and be as the criterion.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105075763A (en) * | 2015-08-21 | 2015-11-25 | 常州大学 | Silicon applying method for lowering concentration of cadmium of rice in rice field heavily polluted by cadmium |
| CN105837308A (en) * | 2016-03-11 | 2016-08-10 | 陈金虎 | Foliar blocking and controlling agent capable of reducing cadmium contamination of brown rice, and preparation method and application thereof |
| CN106106517A (en) * | 2016-06-28 | 2016-11-16 | 华中农业大学 | A kind of pouring root type resistance control agent preparation method and application reducing Plantula Brassicae chinensis cadmium content |
| CN108076948A (en) * | 2017-12-20 | 2018-05-29 | 中国计量大学 | A kind of method that sodium acid carbonate is applied in the soil of highly acid tea place and reduces plumbi content of tea |
| CN110372049A (en) * | 2019-07-12 | 2019-10-25 | 中国农业科学院农业环境与可持续发展研究所 | A kind of preparation method and application of high-performance cadmium fixative |
| CN111995465A (en) * | 2020-09-04 | 2020-11-27 | 上海贯发海洋生物科技有限公司 | Heavy metal blocking agent, application and use method thereof |
| CN115504833A (en) * | 2022-11-04 | 2022-12-23 | 南京大学 | Organic chelate fertilizer for reducing cadmium content of wheat grains and preparation method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105075763A (en) * | 2015-08-21 | 2015-11-25 | 常州大学 | Silicon applying method for lowering concentration of cadmium of rice in rice field heavily polluted by cadmium |
| CN105837308A (en) * | 2016-03-11 | 2016-08-10 | 陈金虎 | Foliar blocking and controlling agent capable of reducing cadmium contamination of brown rice, and preparation method and application thereof |
| CN106106517A (en) * | 2016-06-28 | 2016-11-16 | 华中农业大学 | A kind of pouring root type resistance control agent preparation method and application reducing Plantula Brassicae chinensis cadmium content |
| CN106106517B (en) * | 2016-06-28 | 2019-06-25 | 华中农业大学 | A kind of pouring root type resistance control agent preparation method and application reducing pakchoi cadmium content |
| CN108076948A (en) * | 2017-12-20 | 2018-05-29 | 中国计量大学 | A kind of method that sodium acid carbonate is applied in the soil of highly acid tea place and reduces plumbi content of tea |
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| CN110372049B (en) * | 2019-07-12 | 2021-09-28 | 中国农业科学院农业环境与可持续发展研究所 | Preparation method and application of high-performance cadmium fixing agent |
| CN111995465A (en) * | 2020-09-04 | 2020-11-27 | 上海贯发海洋生物科技有限公司 | Heavy metal blocking agent, application and use method thereof |
| CN115504833A (en) * | 2022-11-04 | 2022-12-23 | 南京大学 | Organic chelate fertilizer for reducing cadmium content of wheat grains and preparation method thereof |
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