CN112174726A - Formula of leaf surface conditioner for reducing cadmium content of rice by using trace elements and silicon and application method thereof - Google Patents
Formula of leaf surface conditioner for reducing cadmium content of rice by using trace elements and silicon and application method thereof Download PDFInfo
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- CN112174726A CN112174726A CN202011031280.4A CN202011031280A CN112174726A CN 112174726 A CN112174726 A CN 112174726A CN 202011031280 A CN202011031280 A CN 202011031280A CN 112174726 A CN112174726 A CN 112174726A
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- rice
- leaf surface
- surface conditioner
- cadmium
- silicon
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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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
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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
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/20—Cereals
- A01G22/22—Rice
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/50—Surfactants; Emulsifiers
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Environmental Sciences (AREA)
- Soil Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Botany (AREA)
- Fertilizers (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a leaf surface conditioner formula for reducing the cadmium content of rice by using trace elements and silicon and an application method thereof, wherein the leaf surface conditioner formula is prepared from the following components in percentage by mass: 20-50% of sodium silicate nonahydrate, 5-10% of malic acid, 25-35% of manganese sulfate, 5-15% of zinc sulfate and 0.5-1.5% of surfactant. The application method comprises the following steps: the formula of 0.25 kg-3.75 kg of leaf surface conditioner mixed in proportion is dissolved in 1.0L-15L of aqueous solution, and the leaf surface conditioner is uniformly sprayed on leaf surfaces from the heading period to the heading period of rice, wherein the leaf surface fertilizer dosage is 3.6-4.0 kg per hectare each time. The cadmium accumulation amount in the early rice and late rice varieties can be effectively reduced, the cadmium accumulation amount is not influenced by variety characteristics and growth seasons, and the cadmium reduction agent has the advantages of simplicity and convenience in operation, easiness in popularization, good cadmium reduction effect after spraying, low cost and the like.
Description
Technical Field
The invention belongs to the technical field of agriculture, and particularly relates to a leaf surface conditioner formula for reducing the cadmium content of rice by using trace elements and silicon and an application method thereof.
Background
Cadmium (Cd) is one of heavy metals with the strongest biological toxicity, is the most common heavy metal pollution element in cultivated lands in China at present, and has the point position standard exceeding rate as high as 7 percent. In acid soil, rice has strong absorption and enrichment capacity to cadmium, and rice becomes a main source of heavy metal cadmium ingested by human bodies. To is coming toThe risk of cadmium pollution of rice to human health is reduced, the food safety standard (GB2762-2012) of China specifies, and the limit standard of cadmium in rice is 0.2mg kg-1. However, as a large amount of cadmium can be fixed in cell walls of nutritive organs such as roots, stems and leaves of rice, the cadmium loses bioactivity and toxicity, and even if the cadmium in the rice exceeds the national limit standard, the cadmium does not have obvious influence on the yield and quality.
Therefore, the technical personnel in the field need to solve the problem of how to provide a leaf surface conditioner formula capable of regulating the recognition capability and the prevention and control potential of the nutritive organs of rice on harmful heavy metal cadmium, improving the cadmium interception efficiency of the nutritive organs and reducing the cadmium content of rice and an application method thereof.
Disclosure of Invention
In view of the above, the invention provides a leaf surface conditioner formula for reducing the cadmium content of rice by using trace elements and silicon and an application method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a leaf surface conditioner formula for reducing the cadmium content of rice by using trace elements and silicon is prepared from the following components in percentage by mass:
20-50% of sodium silicate nonahydrate, 5-10% of malic acid, 25-35% of manganese sulfate, 5-15% of zinc sulfate and 0.5-1.5% of surfactant.
Preferably, the surfactant is tween 80.
The invention also provides an application method of the leaf surface conditioner for reducing the cadmium content of rice by using the microelements and the silicon, which comprises the following steps:
dissolving the leaf surface conditioner in water, uniformly mixing, and uniformly spraying the leaf surface conditioner on leaf surfaces from the heading stage to the heading stage of rice to the flowering stage of rice.
Preferably, spraying is carried out for 1-2 times.
Preferably, the mass volume ratio of the leaf surface conditioning agent to the water is (0.25 kg-3.75 kg): (1.0L-15L).
Preferably, the dosage of the leaf surface conditioner is 3.6-4.0 kg/hectare.
According to the technical scheme, compared with the prior art, the invention has the following beneficial effects:
the invention provides a leaf surface conditioner formula for reducing the cadmium content of rice by using trace elements and silicon and an application method thereof. Meanwhile, the conditioner can also activate the activity of various proteins and enzymes in rice cells and improve the chelation of the proteins and the enzymes on cadmium ions. Therefore, the specific foliar conditioning agent is sprayed from the heading stage to the flowering stage of the rice, so that the transfer of cadmium from a nutrition organ to the rice during the rice filling period can be effectively inhibited, the cadmium content in the rice is obviously reduced, and the use is more flexible;
the product is sprayed within 5 days from heading stage to flowering of rice based on inhibiting the output of cadmium ions in nutritive organs during the filling period of rice grains, can effectively reduce the accumulation of cadmium in rice of early rice and late rice varieties, is not influenced by variety characteristics and growth seasons, and has the advantages of simple and convenient operation, easy popularization, good cadmium reduction effect after spraying, low cost and the like; the foliar fertilizer has the advantages of small dosage, quick absorption, no side effect on the environment, important reference value for regulating and controlling the cadmium accumulation of other grain crops, and very wide application prospect.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following examples, sodium silicate, malic acid, manganese sulfate and zinc sulfate were all chemically pure and purchased from Yuyin science and technology development Ltd, Tianjin, and surfactant was purchased from International Biotechnology Ltd, Noron (Beijing).
Example 1
The invention provides a leaf surface conditioner formula for reducing the cadmium content of rice by using trace elements and silicon and an application method thereof, wherein 280g of solid powder is generated by mixing 20% of sodium silicate nonahydrate, 10% of malic acid, 25% of manganese sulfate, 5% of zinc sulfate and 80% of surfactant Tween according to the proportion of 1%, the solid powder is dissolved in 15L of aqueous solution, the solid powder is uniformly sprayed on leaf surfaces in the rice flowering period by using a knapsack sprayer, the dosage of a leaf fertilizer per hectare is 3.6-4.0 kg, and the Cd content in the rice after spraying and harvesting is reduced by 40%.
Example 2
The invention provides a leaf surface conditioner formula for reducing the cadmium content of rice by using trace elements and silicon and an application method thereof, wherein 280g of solid powder is generated by mixing 40% of sodium silicate nonahydrate, 8% of malic acid, 30% of manganese sulfate, 5% of zinc sulfate and 80% of surfactant Tween according to the proportion of 1%, the solid powder is dissolved in 2.0L of water solution, the solid powder is uniformly sprayed on leaf surfaces in the flowering period of rice by using an unmanned aerial vehicle spraying technology, the dosage of a leaf surface fertilizer per hectare is 3.6-4.0 kg each time, and the Cd content in the rice after spraying and harvesting is reduced by 50%.
Example 3
The invention provides a leaf surface conditioner formula for reducing the cadmium content of rice by using trace elements and silicon and an application method thereof, wherein 350g of solid powder is generated by mixing 50% of sodium silicate nonahydrate, 5% of malic acid, 35% of manganese sulfate, 5% of zinc sulfate and 80% of surfactant Tween according to the proportion of 1%, the solid powder is dissolved in 15L of aqueous solution, after the solid powder is uniformly mixed, the mixture is uniformly sprayed on leaf surfaces by using a knapsack sprayer in the flowering period of rice, the dosage of the leaf surface conditioner per hectare is 3.6-4.0 kg each time, and the Cd content in the rice after spraying and harvesting is reduced by 60%.
The foliar conditioning agent provided by the invention is sprayed within 5 days after flowering in the heading period of rice based on the inhibition of the output of cadmium ions in nutritive organs during the filling period of rice grains, can effectively reduce the accumulation of cadmium in rice of early rice and late rice varieties, is not influenced by variety characteristics and growth seasons, and has the advantages of simple and convenient operation, easy popularization, good cadmium reduction effect after spraying, low cost and the like; the foliar fertilizer has the advantages of small dosage, quick absorption, no side effect on the environment, important reference value for regulating and controlling the cadmium accumulation of other grain crops, and very wide application prospect.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A leaf surface conditioner formula for reducing the cadmium content of rice by using trace elements and silicon is characterized by being prepared from the following components in percentage by mass:
40-60% of sodium silicate nonahydrate, 10-15% of malic acid, 20-40% of manganese sulfate, 5-15% of zinc sulfate and 0.5-1.5% of surfactant.
2. The formulation of a foliar conditioning agent for reducing the cadmium content of rice using trace elements and silicon as claimed in claim 1 wherein the surfactant is tween 80.
3. A method of applying the foliar conditioning agent for reducing the cadmium content of rice using trace elements and silicon according to claims 1 to 2, comprising the steps of:
dissolving the leaf surface conditioner in water, uniformly mixing, and uniformly spraying the leaf surface conditioner on leaf surfaces from the heading stage to the heading stage of rice to the flowering stage of rice.
4. The application method of the leaf surface conditioner for reducing the cadmium content of rice by using the trace elements and silicon as claimed in claim 3, characterized in that spraying is carried out for 1-2 times.
5. The application method of the leaf surface conditioner for reducing the cadmium content of rice by using trace elements and silicon as claimed in claim 3, wherein the mass volume ratio of the leaf surface conditioner to the water is (0.25 kg-3.75 kg): (1.0L-15L).
6. The application method of the leaf surface conditioner for reducing the cadmium content of rice by using trace elements and silicon as claimed in claim 3, wherein the dosage of the leaf surface conditioner is 3.6-4.0 kg/ha.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011031280.4A CN112174726A (en) | 2020-09-27 | 2020-09-27 | Formula of leaf surface conditioner for reducing cadmium content of rice by using trace elements and silicon and application method thereof |
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| CN202011031280.4A CN112174726A (en) | 2020-09-27 | 2020-09-27 | Formula of leaf surface conditioner for reducing cadmium content of rice by using trace elements and silicon and application method thereof |
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| CN202011031280.4A Pending CN112174726A (en) | 2020-09-27 | 2020-09-27 | Formula of leaf surface conditioner for reducing cadmium content of rice by using trace elements and silicon and application method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112961003A (en) * | 2021-02-26 | 2021-06-15 | 四川嘉道博文生态科技有限公司 | Base material for reducing cadmium in ligusticum wallichii planting, fertilizer and application thereof |
| CN113243389A (en) * | 2021-05-17 | 2021-08-13 | 淮南师范学院 | Synthesis and application method of foliar blocking agent for efficiently reducing accumulation of cadmium in indica rice and japonica rice |
| CN113321555A (en) * | 2021-07-05 | 2021-08-31 | 多农多收技术研究(江苏)有限公司 | Medicament and method capable of effectively preventing grain crops from absorbing cadmium in soil |
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| CN110149868A (en) * | 2019-05-28 | 2019-08-23 | 农业农村部环境保护科研监测所 | Reduce the preparation and its method of Cd concentration of brown rice |
| CN110357732A (en) * | 2019-09-02 | 2019-10-22 | 农业农村部环境保护科研监测所 | A kind of foliage fertilizer formulation and its method of administration reducing Cd concentration of brown rice using citric acid and malic acid |
| CN111436340A (en) * | 2020-04-02 | 2020-07-24 | 中南林业科技大学 | Safe production method of rice for medium and heavy cadmium-polluted rice field soil |
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2020
- 2020-09-27 CN CN202011031280.4A patent/CN112174726A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110149868A (en) * | 2019-05-28 | 2019-08-23 | 农业农村部环境保护科研监测所 | Reduce the preparation and its method of Cd concentration of brown rice |
| CN110357732A (en) * | 2019-09-02 | 2019-10-22 | 农业农村部环境保护科研监测所 | A kind of foliage fertilizer formulation and its method of administration reducing Cd concentration of brown rice using citric acid and malic acid |
| CN111436340A (en) * | 2020-04-02 | 2020-07-24 | 中南林业科技大学 | Safe production method of rice for medium and heavy cadmium-polluted rice field soil |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112961003A (en) * | 2021-02-26 | 2021-06-15 | 四川嘉道博文生态科技有限公司 | Base material for reducing cadmium in ligusticum wallichii planting, fertilizer and application thereof |
| CN112961003B (en) * | 2021-02-26 | 2022-07-05 | 四川嘉道博文生态科技有限公司 | Base material for reducing cadmium in ligusticum wallichii planting, fertilizer and application thereof |
| CN113243389A (en) * | 2021-05-17 | 2021-08-13 | 淮南师范学院 | Synthesis and application method of foliar blocking agent for efficiently reducing accumulation of cadmium in indica rice and japonica rice |
| CN113243389B (en) * | 2021-05-17 | 2022-06-07 | 淮南师范学院 | Synthesis and application method of foliar blocking agent for efficiently reducing accumulation of cadmium in indica rice and japonica rice |
| CN113321555A (en) * | 2021-07-05 | 2021-08-31 | 多农多收技术研究(江苏)有限公司 | Medicament and method capable of effectively preventing grain crops from absorbing cadmium in soil |
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