CN115553188A - Method for jointly preventing and controlling excessive mercury of rice - Google Patents
Method for jointly preventing and controlling excessive mercury of rice Download PDFInfo
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- CN115553188A CN115553188A CN202211280397.5A CN202211280397A CN115553188A CN 115553188 A CN115553188 A CN 115553188A CN 202211280397 A CN202211280397 A CN 202211280397A CN 115553188 A CN115553188 A CN 115553188A
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- Prior art keywords
- rice
- biomass charcoal
- control agent
- biomass
- foliar
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- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 71
- 235000009566 rice Nutrition 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 19
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 title claims description 6
- 229910052753 mercury Inorganic materials 0.000 title claims description 6
- 240000007594 Oryza sativa Species 0.000 title 1
- 241000209094 Oryza Species 0.000 claims abstract description 70
- 239000002028 Biomass Substances 0.000 claims abstract description 44
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 30
- 239000003610 charcoal Substances 0.000 claims abstract description 29
- 239000002689 soil Substances 0.000 claims abstract description 9
- 230000002265 prevention Effects 0.000 claims abstract description 6
- 239000003337 fertilizer Substances 0.000 claims abstract description 4
- 239000002985 plastic film Substances 0.000 claims abstract description 4
- 229920006255 plastic film Polymers 0.000 claims abstract description 4
- 230000000979 retarding effect Effects 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 230000008569 process Effects 0.000 claims abstract description 3
- 239000004111 Potassium silicate Substances 0.000 claims description 3
- 235000018660 ammonium molybdate Nutrition 0.000 claims description 3
- 239000011609 ammonium molybdate Substances 0.000 claims description 3
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 claims description 3
- 229940010552 ammonium molybdate Drugs 0.000 claims description 3
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 3
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 3
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 3
- 239000011790 ferrous sulphate Substances 0.000 claims description 3
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 3
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 3
- 229940099596 manganese sulfate Drugs 0.000 claims description 3
- 235000007079 manganese sulphate Nutrition 0.000 claims description 3
- 239000011702 manganese sulphate Substances 0.000 claims description 3
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 claims description 3
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims description 3
- 229910052913 potassium silicate Inorganic materials 0.000 claims description 3
- 235000019353 potassium silicate Nutrition 0.000 claims description 3
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 3
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 3
- 229960001763 zinc sulfate Drugs 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 14
- 229910052799 carbon Inorganic materials 0.000 abstract description 14
- 230000002195 synergetic effect Effects 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 235000021329 brown rice Nutrition 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000005180 public health Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000003516 soil conditioner Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
Images
Classifications
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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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/16—Heavy metals; Compounds thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/16—Heavy metals; Compounds thereof
- A01N59/20—Copper
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- A01P21/00—Plant growth regulators
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
Abstract
The invention discloses a method for jointly preventing and controlling excessive Hg (Hg) of rice, which is characterized in that biomass charcoal and a leaf surface prevention and control agent are jointly applied to prevent and control excessive Hg of the rice, wherein the joint application process comprises the following steps: application of biomass charcoal: before transplanting rice, applying the biomass charcoal into a rice field plot according to 500-1000 kg/mu, ridging the periphery of the rice field plot and covering the rice field plot with a black plastic film, and turning the biomass charcoal and a base fertilizer into a 0-15 cm soil layer during turning; application of the foliar retarding and controlling agent: in the full tillering stage and the heading stage of the rice, the foliar resistance and control agent is diluted by water and sprayed on the rice according to the dosage standard of 750-1500 g/mu. The method can ensure the premise of no reduction of rice yield and low cost, combines the low-cost leaf surface resistance control agent and the low-dosage rice hull biomass carbon, fully exerts the synergistic effect of the two on the aspect of reducing Hg, ensures that the Hg content of rice reaches a safe level, further reduces the investment cost of the biomass carbon, and ensures that the rice yield is not reduced.
Description
Technical Field
The invention belongs to the technical field of prevention and control of agricultural mercury (Hg) pollution, and particularly relates to a method for jointly preventing and controlling excessive Hg of rice by using biomass charcoal and a leaf surface prevention and control agent.
Background
Mercury (Hg) is a heavy metal element with high toxicity, and is widely used in the fields of science and technology, agriculture, medicine, and the like. However, it is the widespread use of Hg that causes an increasing amount of Hg in the environment, which poses environmental and biosphere hazards, especially the production of the Japanese "Water enzyme" event in 1956 has raised widespread concern. The world health organization ranks Hg as one of ten major chemicals that raise significant public health concerns.
In recent years, the problem of soil Hg pollution in China is serious, and the pollution is mainly distributed in the middle, south and southwest areas of China. Hg enriched in soil can be absorbed into the food chain by crops, seriously compromising food safety. Hg occurs in nature as inorganic Hg (IHg) and organic Hg (methylmercury-meahg and dimethylmercury-DMHg), IHg can be converted to meahg under reducing conditions. Research shows that rice is easier to enrich MeHg in soil than other crops, and the average biological enrichment factor of the rice is 800 times that of IHg [3] . Rice is an important grain crop all over the world, more than 1/2 of the world population eats rice, and China is a big producing and consuming country of rice, so that research on prevention and control methods of Hg pollution of rice is urgent.
The currently common technology for preventing and controlling the accumulation of the heavy metals in the rice mainly comprises agricultural regulation and control measures, application of a soil conditioner, foliage resistance and control agents, planting structure adjustment and the like, and biomass charcoal is a safe and effective heavy metal repairing material, can obviously reduce the effectiveness of the heavy metals in the soil, and therefore limits the absorption of the heavy metals by the rice. Xing et al. (2020) addition of 24 and 72 tha to soil -1 The total Hg and MeHg content of rice grains is obviously reduced after the biomass charcoal (reference: xing Y., wang J.X., shaheen S.M., et al]Journal of Hazardous materials.2020,388: 121747.). However, the biomass charcoal with high dosage has high input cost and is difficult to popularize, and the biomass charcoal with low dosage is used for rawThe carbon substance has a limited effect in fixing Hg. The leaf surface resistance control technology has the advantage of low cost, can improve the stress resistance of rice and reduce the transport of heavy metal to rice, and is widely applied to cadmium-polluted rice fields at present, but is less applied to Hg-polluted rice fields.
Therefore, the invention discloses a biomass carbon and leaf surface resistance control combined resistance control technology which can realize that the Hg of rice is not over-standard and the yield is not influenced in a medium and light Hg-polluted rice field on the basis of field tests of an applicant.
Disclosure of Invention
The invention aims to provide a method for jointly preventing and controlling excessive Hg of rice, which solves the problems that the high-dosage biomass carbon has high input cost and is difficult to popularize and the low-dosage biomass carbon has limited Hg fixing effect by utilizing the synergistic effect of the biomass carbon and a leaf surface preventing and controlling agent.
The invention is realized in such a way, a method for jointly preventing and controlling excessive Hg of rice is implemented by jointly applying biomass charcoal and a leaf surface prevention and control agent to prevent and control excessive Hg of rice, wherein the joint application process comprises the following steps:
application of biomass charcoal: before transplanting rice, applying the biomass charcoal into a rice field plot according to 500 kg/acre-1000 kg/acre, ridging the periphery of the rice field plot and covering the rice field plot with a black plastic film, and turning the biomass charcoal and a base fertilizer into a 0-15 cm soil layer during plowing;
application of the foliar retarding and controlling agent: in the full tillering stage and the heading stage of the rice, the foliar resistance and control agent is diluted by water and sprayed on the rice according to the dosage standard of 750-1500 g/mu.
Preferably, the biomass charcoal is rice hulls.
Preferably, the foliage resistance and control agent comprises 47wt% of ferrous sulfate, 40wt% of zinc sulfate, 10wt% of potassium silicate, 1wt% of manganese sulfate, 1wt% of copper sulfate and 1wt% of ammonium molybdate.
Preferably, the rice varieties are Nanjing 9108 and Yinxiang 38.
Preferably, the biomass charcoal is applied to a paddy field plot at 1000 kg/acre, and the foliar drag control agent is applied at 1500 g/acre dosage standard.
The invention discloses a method for controlling excessive Hg of rice by using biomass carbon and a leaf surface resistance control agent in a combined manner.
Compared with the defects and shortcomings of the prior art, the invention has the following beneficial effects: the method can ensure the premise of no reduction of rice yield and low cost, combines the low-cost leaf surface resistance control agent and the low-dosage rice hull biomass carbon, fully exerts the synergistic effect of the leaf surface resistance control agent and the low-dosage rice hull biomass carbon on the aspect of reducing Hg, ensures that the Hg content of rice reaches a safe level, and further reduces the input cost of the biomass carbon.
Drawings
FIG. 1 shows the change of Hg content of brown rice under the combined action of biomass charcoal and a foliage retardant;
FIG. 2 shows the variation of rice yield under the combined action of biomass charcoal and foliar retarding and controlling agent;
in fig. 1 and 2, A1 and A2 are two rice varieties of yinxiang 38 and nanjing 9108 respectively; b7, B3 and B4 are respectively a reference, the biomass charcoal dosage is 1 (500 kg/mu) and the biomass charcoal dosage is 2 (1000 kg/mu); c1 and C2 are the dosages of two leaf surface resistance control agents, and are respectively 750 g/mu (C1) and 1500 g/mu (C2).
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the embodiment of the invention, the biomass charcoal is made of rice hulls which are purchased from Nanjing Qifeng straw science and technology limited company, and the leaf surface resistance and control agent comprises ferrous sulfate (47 wt%), zinc sulfate (40 wt%), potassium silicate (10 wt%), manganese sulfate (1 wt%), copper sulfate (1 wt%) and ammonium molybdate (1 wt%).
The embodiment of the invention provides changes of Hg content and rice yield of rice after biomass charcoal and a leaf surface resistance control agent jointly control different rice varieties under different dosage matching, wherein symbols A1 and A2 are two rice varieties, namely silver essence 38 and Nanjing 9108 respectively; b7, B3 and B4 are respectively a reference, the biomass charcoal dosage is 1 (500 kg/mu) and the biomass charcoal dosage is 2 (1000 kg/mu); c1 and C2 are the dosages of two leaf surface resistance control agents, and are respectively 750 g/mu (C1) and 1500 g/mu (C2).
When the biomass charcoal is applied, before rice is transplanted, 500 kg/mu (B3) and 1000 kg/mu (B4) are respectively applied into corresponding rice field cells, ridges are formed on the periphery of each rice field cell and covered by a black plastic film, each treatment is repeated for 3 times, and the biomass charcoal and the base fertilizer are turned into a 0-15 cm soil layer during turning;
the foliar resistance and control agent is respectively sprayed at 50 times of dilution in the full tillering stage and the heading stage of rice, wherein the dosage of the foliar resistance and control agent is respectively 750 g/mu (C1) and 1500 g/mu (C2).
After the rice is ripe and harvested, the rice yield and the Hg content of the brown rice are counted and measured, and the results are shown in figures 1-2. Fig. 1 shows the change of the Hg content of brown rice under the combined action of biomass carbon and a leaf surface resistance control agent, and the results show that the Hg content of rice can be remarkably reduced to a safe level (20 ug/kg) by B4C2 treatment on the variety A1 and the variety A2, and fig. 2 shows the change of the yield of rice under the combined action of biomass carbon and a leaf surface resistance control agent, from the yield point of view, the yield of the variety A1 has no obvious change after the combined resistance control of the biomass carbon and the leaf surface resistance control agent, and the yield increase phenomenon exists in the variety A2.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. A method for jointly preventing and controlling excessive mercury in rice is characterized in that the method is implemented by jointly applying biomass charcoal and a leaf surface prevention and control agent to prevent and control excessive mercury in rice, wherein the joint application process comprises the following steps:
application of biomass charcoal: before transplanting rice, applying the biomass charcoal into a rice field plot according to 500-1000 kg/mu, ridging the periphery of the rice field plot and covering the rice field plot with a black plastic film, and turning the biomass charcoal and a base fertilizer into a 0-15 cm soil layer during turning;
application of the foliar retarding and controlling agent: in the full tillering stage and the heading stage of the rice, the foliar resistance and control agent is diluted by water and sprayed on the rice according to the dosage standard of 750-1500 g/mu.
2. The method of claim 1, wherein the biomass char is rice hulls.
3. The method of claim 1, wherein the foliar drag control agent component is 47wt% ferrous sulfate, 40wt% zinc sulfate, 10wt% potassium silicate, 1wt% manganese sulfate, 1wt% copper sulfate, 1wt% ammonium molybdate.
4. The method of claim 1, wherein the rice cultivars are Nanjing 9108 and Yinxiang 38.
5. The method of claim 1, wherein the biomass char is applied at 1000 kg/acre into a paddy field plot, and the foliar drag control agent is applied at 1500 g/acre dose criteria.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211280397.5A CN115553188A (en) | 2022-10-19 | 2022-10-19 | Method for jointly preventing and controlling excessive mercury of rice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211280397.5A CN115553188A (en) | 2022-10-19 | 2022-10-19 | Method for jointly preventing and controlling excessive mercury of rice |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115553188A true CN115553188A (en) | 2023-01-03 |
Family
ID=84767732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211280397.5A Pending CN115553188A (en) | 2022-10-19 | 2022-10-19 | Method for jointly preventing and controlling excessive mercury of rice |
Country Status (1)
| Country | Link |
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| CN (1) | CN115553188A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017147980A1 (en) * | 2016-03-02 | 2017-09-08 | 广东省生态环境技术研究所 | Leaf surface barrier for accurately controlling cadmium absorption and transport related gene expression in rice, and application thereof |
| CN109122136A (en) * | 2018-07-24 | 2019-01-04 | 广东省生态环境技术研究所 | A kind of method of rice safety in production on mild or moderate heavy-metal contaminated soil |
| CN109588218A (en) * | 2018-12-25 | 2019-04-09 | 湖南恒凯环保科技投资有限公司 | For reducing the implantation methods of crops mercury content |
| CN110639946A (en) * | 2019-08-16 | 2020-01-03 | 绍兴市农业科学研究院 | Method for reducing heavy metal cadmium in plants |
| CN111213556A (en) * | 2020-02-10 | 2020-06-02 | 中南林业科技大学 | Safe production method of rice for medium and light cadmium-polluted soil |
| CN111357591A (en) * | 2020-03-16 | 2020-07-03 | 环保桥(湖南)生态环境工程股份有限公司 | Safe utilization method of cadmium-arsenic composite polluted rice field |
| CN112552113A (en) * | 2020-12-22 | 2021-03-26 | 中国水稻研究所 | Foliar fertilizer for controlling rice heavy metal cadmium accumulation and application method thereof |
-
2022
- 2022-10-19 CN CN202211280397.5A patent/CN115553188A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017147980A1 (en) * | 2016-03-02 | 2017-09-08 | 广东省生态环境技术研究所 | Leaf surface barrier for accurately controlling cadmium absorption and transport related gene expression in rice, and application thereof |
| CN109122136A (en) * | 2018-07-24 | 2019-01-04 | 广东省生态环境技术研究所 | A kind of method of rice safety in production on mild or moderate heavy-metal contaminated soil |
| CN109588218A (en) * | 2018-12-25 | 2019-04-09 | 湖南恒凯环保科技投资有限公司 | For reducing the implantation methods of crops mercury content |
| CN110639946A (en) * | 2019-08-16 | 2020-01-03 | 绍兴市农业科学研究院 | Method for reducing heavy metal cadmium in plants |
| CN111213556A (en) * | 2020-02-10 | 2020-06-02 | 中南林业科技大学 | Safe production method of rice for medium and light cadmium-polluted soil |
| CN111357591A (en) * | 2020-03-16 | 2020-07-03 | 环保桥(湖南)生态环境工程股份有限公司 | Safe utilization method of cadmium-arsenic composite polluted rice field |
| CN112552113A (en) * | 2020-12-22 | 2021-03-26 | 中国水稻研究所 | Foliar fertilizer for controlling rice heavy metal cadmium accumulation and application method thereof |
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