CN103125280A - Safety monitoring alarm method of cadmium (Cd) in rice - Google Patents
Safety monitoring alarm method of cadmium (Cd) in rice Download PDFInfo
- Publication number
- CN103125280A CN103125280A CN2012105187091A CN201210518709A CN103125280A CN 103125280 A CN103125280 A CN 103125280A CN 2012105187091 A CN2012105187091 A CN 2012105187091A CN 201210518709 A CN201210518709 A CN 201210518709A CN 103125280 A CN103125280 A CN 103125280A
- Authority
- CN
- China
- Prior art keywords
- rice
- cadmium
- soil
- early warning
- stage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Cultivation Of Plants (AREA)
Abstract
The invention discloses a safety monitoring alarm method of cadmium (Cd) in rice. The following mathematical prediction model is built: the relation between mature-period rice Cd content Y and Cd accumulation X in tillering-stage rice plant stems satisfies the equation that Y=0.588*X*1.158; and rice plant samples are collection in tillering stages of rice, the Cd accumulation X in the tillering-stage rice plant stems is detected, the mature-period rice Cd content Y is forecasted according to the mathematical prediction model, and safety of mature-period rice Cd content Y is judged and alarm is conducted. When the safety monitoring alarm method is used for safety monitoring of farmland rice production, safety of Cd in the rice can be early warmed in growing earlier stages of the rice (the tillering stages, about 60 days far from the mature harvest of the rice), problems are found in advance, time is obtained for the government and relative departments making measurements to conduct intervene, damage of Cd toxic rice is reduced, health hazard to people from the Cd population is reduced, and food safety and body health are guaranteed.
Description
Technical field
The present invention relates to a kind of safety monitoring method for early warning for the rice heavy metal, specifically refer to the safety monitoring method for early warning of a kind of rice Cd for the farmland planting paddy rice.
Background technology
In recent years, the heavy metal in China's related food such as the cadmium content problem that exceeds standard occurs again and again, and the heavy metal in food seriously influences the health of human body.Moreover, always after being arranged, serious poisoning just finds, there is no early warning, the cause government Intervention Strategy is untimely, not in place, removes malicious source difficulty, seriously has influence on people's healthy and social stablizing.
Above-mentioned discussion content purpose is to introduce to the reader various aspects of technology that may be relevant to the various aspects of the present invention that below will be described and/or advocate, believe that this discussion content helps to provide background information for the reader, to be conducive to understanding better various aspects of the present invention, therefore, should be appreciated that it is to read these discussions with this angle, rather than admit prior art.
Summary of the invention
The safety monitoring method for early warning that the object of the invention is to avoid deficiency of the prior art and Cd in a kind of rice is provided, it is for the characteristics of Rice Production, in the early stage (tillering stage) of Rice Production, deposit the content status of Cd in attitude amount or rice organ stem according to the content of Cd in agricultural land soil at that time, 4 kinds of taxes of Cd, input the corresponding computing formula of this model, predict its in the future Cd content in rice, and (GB2715-2005, Cd content is＜0.2mgkg with the national food sanitary standard
-1) calculate early warning value (rice early warning value J=Cd concentration of brown rice predicted value Y/ grain sanitary control standard), J＜0.7 is that devoid of risk, 0.7≤J＜1.0 for low-risk, 2≤J＜3.0 are excessive risk for risk, 3.0≤J, get final product the safety of Cd content in early warning rice for warning, 1.0≤J＜2.0.
Purpose of the present invention is achieved through the following technical solutions:
The safety monitoring method for early warning of Cd in a kind of rice is provided, first sets up following mathematical forecasting model: the relation of cadmium accumulation X in cadmium content Y and tillering stage rice plant stem in maturing stage rice:
Y=0.588X 1.158 Then gather the rice plant sample in the tillering stage of paddy rice, detect rice plant cadmium accumulation X, according to above-mentioned mathematical forecasting model, cadmium content Y in prediction maturing stage rice judges its safety and carries out early warning.
Wherein, in described rice plant sample, cadmium accumulation X adopts HNO
3-HClO
4Wet digestion method is measured.
Purpose of the present invention also is achieved through the following technical solutions:
The safety monitoring method for early warning of Cd in a kind of rice is provided, first sets up following mathematical forecasting model: the relation of total cadmium amount X in cadmium content Y and tillering stage soil in maturing stage rice:
Y=0.207X 0.946 Then gather soil in the tillering stage of paddy rice, detect total cadmium amount X in soil in tillering stage, according to above-mentioned mathematical forecasting model, cadmium content Y in prediction maturing stage rice judges its safety and carries out early warning.
Wherein, in described soil, total cadmium amount X adopts HF-HCLO
4-HNO
3Method is measured.
Purpose of the present invention also is achieved through the following technical solutions:
The safety monitoring method for early warning of Cd in a kind of rice is provided, first sets up following mathematical forecasting model: in maturing stage rice cadmium content Y and tillering stage Cadmium in Soil 4 kinds of taxes deposit wherein three kinds of attitude amount (X of attitude
1Weak acid extractable, X
2Iron and manganese oxides is in conjunction with attitude, X
3Organic matter complex state, X
4Residual form) significance is closed:
Y=0.0256+0.0837X 4 + 0.3077X 2 2 -3.008X 3 2 -0.4063X 2 X 4 + 2.8571X 3 X 4 Then gather soil in the tillering stage of paddy rice, detect 3 kinds of attitude amounts of Cadmium in Soil in tillering stage, according to above-mentioned mathematical forecasting model, cadmium content Y in prediction maturing stage rice judges its safety and carries out early warning.
Wherein, 4 kinds of taxes of described Cadmium in Soil are deposited the attitude amount and are adopted the BCR continuous extraction of revising, cadmium content atomic absorption spectroscopy determination in liquid to be measured.
The present invention has found out correlation and the mechanism thereof of accumulation of content, the cauline leaf in paddy growth early stage (tillering stage) of Cd in the accumulation of Cd in rice and its soil substantially, on this basis respectively in the soil in the content of Cd, soil the tax of Cd deposit attitude amount, tillering stage rice plant cauline leaf Cd as variable, in maturing stage rice, Cd content is dependent variable, the correlation function forecast model system of setting up, after the content of Cd in prediction rice, namely (GB2715-2005, Cd content is＜0.2mgkg with the national food sanitary standard
-1) calculate early warning value (rice early warning value J=Cd concentration of brown rice predicted value Y/ grain sanitary control standard), J＜0.7 is that devoid of risk, 0.7≤J＜1.0 are excessive risk for low-risk, 2≤J＜3.0 for risk, 3.0≤J for warning, 1.0≤J＜2.0, accordingly, judge its safety.When the present invention carries out safety monitoring to farmland rice production, can be before plantation or paddy growth (tillering stage in early stage, still have about 60 days apart from the ripe results of paddy rice) just can its rice of early warning in the safety of Cd, pinpoint the problems ahead of time, for taking measures to intervene, government and relevant departments gain time, reduce the harm that Cd poison rice is arranged, reduce Cd and pollute the health hazard that brings to the people, guarantee people's food security and healthy.
Embodiment
In order to make those skilled in the art understand better technical scheme of the present invention, the present invention is described in further detail below in conjunction with specific embodiment.
Core of the present invention is to provide the safety monitoring method for early warning of Cd in a kind of rice, it is for the characteristics of Rice Production, in the early stage (tillering stage) of Rice Production, according to the content of Cd in agricultural land soil at that time, compose the content status of Cd in the form of depositing or rice organ, input the corresponding computing formula of this model, can early warning to its safety of Cd content in rice in the future.
Mathematical forecasting model formula of the present invention is to draw through many experiments, and is specific as follows:
Test material
Early rice in 2009 test kind is: excellent 128, and round-grained rice Xian 89, Zhanyou 226 and Guangdong perfume (or spice) account for;
Late rice in 2009 test kind is: rich II is excellent 312, Tianyou 122, special Xian account for 25, five Feng You 615;
Early rice in 2010 test kind is: excellent 128, and round-grained rice Xian 89, Zhanyou 226 and Guangdong perfume (or spice) account for;
Late rice in 2010 test kind is: rich II is excellent 312, Tianyou 122, special Xian account for 25, five Feng You 615.
The soil of test is field mud, through air-dry, grind, cross the 5mm aperture sieve after, evenly mix, be used for the barrel plant test.Mixed physiochemical properties of soil is respectively: pH=6.79, and the content of organic matter 2.43%, alkali-hydrolyzable nitrogen content 131.5mg/kg, available phosphorus contents 68.5mg/kg, quick-acting potassium content 183.5mg/kg, Soil Background cadmium content are 0.1364mg/kg.
Experimental scheme
The experimental scheme of (1) 2009 year early rice: adopt the method for barrel plant test, the bucket specification is 40 * 50cm
2Every barreled soil 22.0kg; The Cd Stress treatment is for using CdCl
2Solution, on March 28th, 2009 by 0,1,2,3,5 processing horizontals such as 4mg/kg use corresponding CdCl
2Solution.Test is carried out in the glass greenhouse of the Xing Nonglou of Guangdong Ocean University, choosing healthy full seed rinses well repeatedly through deionized water, then be sowed on moistening filter paper and keep 28 ℃ of constant temperature culture, the seed that after 24 h, selection shows money or valuables one carries unintentionally in the Plastic Drum that soil is housed, is planted 60,5 processing horizontals by every barrel in upper seeding on April 4 in 2009,3 repetitions, have 60 barrels, numbering, random district group is arranged.By keeping the water surface in bucket to cultivate higher than native face 3cm, the Production of Large Fields rules are pressed in management.When seedling grows the first leaf, select seedling, pull out weak seedling, stay 15 of strong seedlings.
The experimental scheme of (2) 2009 years late rices: adopt the method for barrel plant test, the bucket specification is 40 * 50cm
2Every barreled soil 22.0kg; The Cd Stress treatment is for using CdCl
2Solution, on May 10th, 2009 by 0,0.5,1.0,1.5,2.0,2.5,3.0,3.5,9 processing horizontals such as 4mg/kg use corresponding CdCl
2Solution.Test is carried out in the glass greenhouse of the Xing Nonglou of Guangdong Ocean University, choosing healthy full seed rinses well repeatedly through deionized water, then be sowed on moistening filter paper and keep 28 ℃ of constant temperature culture, the seed that after 24 h, selection shows money or valuables one carries unintentionally in the Plastic Drum that soil is housed, is planted 60,5 processing horizontals by every barrel in upper seeding on July 10 in 2009,3 repetitions, have 108 barrels, numbering, random district group is arranged.By keeping the water surface in bucket to cultivate higher than native face 1-3cm, the Production of Large Fields rules are pressed in management.When seedling grows the first leaf, select seedling, pull out weak seedling, stay 15 of strong seedlings.
The experimental scheme of early rice test in (3) 2010 years: adopt the method for barrel plant test, the bucket specification is 40 * 50cm
2Every barreled soil 22.0kg; The Cd Stress treatment is for using CdCl
2Solution, on February 2nd, 2010 by 0,0.5,1.0,1.5,2.0,2.5,3.0,3.5,9 processing horizontals such as 4mg/kg use corresponding CdCl
2Solution.Test is carried out in the glass greenhouse of the Xing Nonglou of Guangdong Ocean University, choosing healthy full seed rinses well repeatedly through deionized water, then be sowed on moistening filter paper and keep 28 ℃ of constant temperature culture, the seed that after 24 h, selection shows money or valuables one carries unintentionally in the Plastic Drum that soil is housed, is planted 60,5 processing horizontals by every barrel in upper seeding on April 2 in 2010,3 repetitions, have 108 barrels, numbering, random district group is arranged.By keeping the water surface in bucket to cultivate higher than native face 1-3cm, the Production of Large Fields rules are pressed in management.When seedling grows the first leaf, select seedling, pull out weak seedling, stay 15 of strong seedlings.
The experimental scheme of late rice test in (4) 2010 years: adopt the method for barrel plant test, the bucket specification is 40 * 50cm
2Every barreled soil 22.0kg; The Cd Stress treatment is for using CdCl
2Solution, on May 8th, 2010 by 0,0.5,1.0,1.5,2.0,2.5,3.0,3.5,9 processing horizontals such as 4mg/kg use corresponding CdCl
2Solution.Test is carried out in the glass greenhouse of the Xing Nonglou of Guangdong Ocean University, choosing healthy full seed rinses well repeatedly through deionized water, then be sowed on moistening filter paper and keep 28 ℃ of constant temperature culture, the seed that after 24 h, selection shows money or valuables one carries unintentionally in the Plastic Drum that soil is housed, is planted 60,5 processing horizontals by every barrel in upper seeding on July 8 in 2010,3 repetitions, have 108 barrels, numbering, random district group is arranged.By keeping the water surface in bucket to cultivate higher than native face 1-3cm, the Production of Large Fields rules are pressed in management.When seedling grows the first leaf, select seedling, pull out weak seedling, stay 15 of strong seedlings.
Whole strain gathers rice plant sample (5 strain) in tillering stage, flowering stage, the maturing stage of paddy rice respectively, first with the root system of the careful rinse water rice plants of running water and stem thereof, leaf, then clean up again natural air drying with distilled water, pulverized 100 mesh sieves, in the bottle of packing into, bag is standby; Results paddy when paddy rice is ripe, air-dry shelling pulverized, and crosses the 100 mesh sieves bag of packing in bottle standby; For soil specimen, each was processed and divided three points to take soil specimen with soil sampler each breeding time, and sampling depth is decided to be 0-20cm.The sample that gathers is placed on respectively natural air drying in the sample room, and air-dry soil sample is removed the foreign material such as stone and undesirable root, then is placed in mortar, is ground into powder, and the Envelope bag of excessively packing into after 100 mesh sieve is standby.
In the rice plant sample, cadmium element adopts HNO
3-HClO
4Wet digestion method, in soil, the extracting method of total cadmium is selected the HF-HCLO of Chen Huaiman
4-HNO
3Method, the occurrence patterns of Cadmium in Soil are selected the BCR continuous extraction of correction, cadmium content atomic absorption spectroscopy determination in liquid to be measured.Take national standard material GBW07604 (GSV-3) as interior mark control analysis quality, measure reading on the Z2300 of Hitachi type atomic absorption spectrophotometer.
The project indicator of measuring
Tillering stage: in soil, the cadmium of attitude is deposited in total cadmium and each tax thereof: total cadmium (X
T), sour molten attitude cadmium (X
1), reducible attitude cadmium (X
2), oxidable attitude cadmium (X
3), residual form cadmium (X
4); The cadmium content of rice plant organ (position): root (Y
1), stem (Y
2), leaf (Y
3), brown rice (Y
4).
Flowering stage: in soil, the cadmium of attitude is deposited in total cadmium and each tax thereof: total cadmium (X
T), sour molten attitude cadmium (X
1), reducible attitude cadmium (X
2), oxidable attitude cadmium (X
3), residual form cadmium (X
4); The cadmium content of rice plant organ (position): root (Y
1), stem (Y
2), leaf (Y
3), brown rice (Y
4).
Maturing stage: in soil, the cadmium of attitude is deposited in total cadmium and each tax thereof: total cadmium (X
T), sour molten attitude cadmium (X
1), reducible attitude cadmium (X
2), oxidable attitude cadmium (X
3), residual form cadmium (X
4); The cadmium content of rice plant organ (position): root (Y
1), stem (Y
2), leaf (Y
3), brown rice (Y
4).
Mathematical forecasting model
(1) predict the mathematical model of cadmium content in its rice with total cadmium amount in rice plant of tillering stage soil:
Y=0.588X 1.158 ；
(2) predict the mathematical model of cadmium content in its rice with cadmium accumulation in the rice plant of tillering stage plants stems:
Y=0.207X 0.946 ；
(3) with rice plant of tillering stage Cadmium in Soil 4 kinds of taxes deposit the mathematical model (X that the attitude amount is predicted cadmium content in its rice
1Weak acid extractable, X
2Iron and manganese oxides is in conjunction with attitude, X
3Organic matter complex state, X
4Residual form):
Y=0.0256+0.0837X 4 +0.3077X 2 2 -3.008X 3 2 -0.4063X 2 X 4 +2.8571X 3 X 4 ；
According to above-mentioned mathematical forecasting model, gather the rice plant sample in the tillering stage of paddy rice, detect rice plant cadmium accumulation X; Perhaps, gather soil in the tillering stage of paddy rice, detect total cadmium amount X in soil in tillering stage; Perhaps, gather soil in the tillering stage of paddy rice, detect 4 kinds of taxes of Cadmium in Soil in tillering stage and deposit the attitude amount, according to above-mentioned corresponding mathematical forecasting model, i.e. cadmium content Y in rice of measurable maturing stage.Then, according to national standard of soil environment quality (GB 15618-1995) and grain sanitary control standard (GB 2715-2005), establish warning level standard (rice early warning value J=Cd concentration of brown rice predicted value Y/ grain sanitary control standard (0.2mgkg
-1), J＜0.7 is that devoid of risk, 0.7≤J＜1.0 are excessive risk for low-risk, 2≤J＜3.0 for risk, 3.0≤J for warning, 1.0≤J＜2.0), judge its safety and carry out early warning.
Set forth a lot of details so that fully understand the present invention in top description, still, the present invention can also adopt other to be different from other modes described here and implement, and therefore, can not be interpreted as limiting the scope of the invention.
In a word; although the present invention has exemplified above-mentioned preferred embodiment, should illustrate, although those skilled in the art can carry out various variations and remodeling; unless such variation and remodeling have departed from scope of the present invention, otherwise all should be included in protection scope of the present invention.
Claims (9)
1. the safety monitoring method for early warning of Cd in a rice, is characterized in that,
Set up following mathematical forecasting model:
The relation of cadmium accumulation X in cadmium content Y and tillering stage rice plant in maturing stage rice:
1.
1.158 ；
Gather the rice plant sample in the tillering stage of paddy rice, detect rice plant cadmium accumulation X, according to above-mentioned mathematical forecasting model, cadmium content Y in prediction maturing stage rice judges its safety and carries out early warning.
2. the safety monitoring method for early warning of Cd in rice according to claim 1, is characterized in that: cadmium accumulation X employing HNO in described rice plant sample
3-HClO
4Wet digestion method is measured.
3. the safety monitoring method for early warning of Cd in a rice, is characterized in that,
Set up following mathematical forecasting model:
The relation of total cadmium amount X in cadmium content Y and tillering stage soil in maturing stage rice:
0.
0.946 ；
Gather soil in the tillering stage of paddy rice, detect total cadmium amount X in soil in tillering stage, according to above-mentioned mathematical forecasting model, cadmium content Y in prediction maturing stage rice judges its safety and carries out early warning.
4. the safety monitoring method for early warning of Cd in rice according to claim 3, is characterized in that: total cadmium amount X employing HF-HCLO in described soil
4-HNO
3Method is measured.
5. the safety monitoring method for early warning of Cd in a rice, is characterized in that,
Set up following mathematical forecasting model:
In maturing stage rice cadmium content Y and tillering stage Cadmium in Soil 4 kinds of taxes deposit wherein three kinds of attitude amount (X of attitude
2Iron and manganese oxides is in conjunction with attitude, X
3Organic matter complex state, X
4Residual form) significance is closed:
4.
42 2 3 2 2434 ；
Gather soil in the tillering stage of paddy rice, detect three kinds of attitude amounts of Cadmium in Soil in tillering stage, according to above-mentioned mathematical forecasting model, cadmium content Y in prediction maturing stage rice judges its safety and carries out early warning.
6. the safety monitoring method for early warning of Cd in rice according to claim 5 is characterized in that: 4 kinds of taxes of described Cadmium in Soil are deposited the attitude amount and are adopted the BCR continuous extraction of revising, cadmium content atomic absorption spectroscopy determination in liquid to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210518709.1A CN103125280B (en) | 2012-12-06 | 2012-12-06 | Safety monitoring alarm method of cadmium (Cd) in rice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210518709.1A CN103125280B (en) | 2012-12-06 | 2012-12-06 | Safety monitoring alarm method of cadmium (Cd) in rice |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103125280A true CN103125280A (en) | 2013-06-05 |
| CN103125280B CN103125280B (en) | 2015-01-14 |
Family
ID=48486231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210518709.1A Expired - Fee Related CN103125280B (en) | 2012-12-06 | 2012-12-06 | Safety monitoring alarm method of cadmium (Cd) in rice |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103125280B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104686267A (en) * | 2015-03-26 | 2015-06-10 | 四川省农业科学院分析测试中心 | Method for early prediction of heavy metal cadmium content in rice |
| CN105701575A (en) * | 2016-01-26 | 2016-06-22 | 中国科学院沈阳应用生态研究所 | An agricultural product heavy metal risk assessment method based on a soil-crop system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101334392A (en) * | 2008-06-25 | 2008-12-31 | 北京信息科技大学 | Analytical method and system for prealarming for toxic harmful substance |
| CN101593342A (en) * | 2009-06-24 | 2009-12-02 | 贵州省理化测试分析研究中心 | The method of safety precaution of producing area of farm product in long term |
| CN101593343A (en) * | 2009-06-24 | 2009-12-02 | 贵州省理化测试分析研究中心 | The long-term safety method for early warning of non-polluted farm product |
-
2012
- 2012-12-06 CN CN201210518709.1A patent/CN103125280B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101334392A (en) * | 2008-06-25 | 2008-12-31 | 北京信息科技大学 | Analytical method and system for prealarming for toxic harmful substance |
| CN101593342A (en) * | 2009-06-24 | 2009-12-02 | 贵州省理化测试分析研究中心 | The method of safety precaution of producing area of farm product in long term |
| CN101593343A (en) * | 2009-06-24 | 2009-12-02 | 贵州省理化测试分析研究中心 | The long-term safety method for early warning of non-polluted farm product |
Non-Patent Citations (7)
| Title |
|---|
| 周鸿凯等: "大田生产条件下不同品种水稻植株中镉的分布特点", 《第三届全国农业环境科学学术研讨会论文集》, 31 October 2009 (2009-10-31), pages 10 - 17 * |
| 张法英等: "湛江水稻生产环境及其稻米中Cd 的安全性评价", 《第四届全国农业环境科学学术研讨会论文集》, 31 July 2011 (2011-07-31), pages 141 * |
| 杨春刚等: "糙米与水稻植株中镉含量的关系", 《安徽农业科学》, vol. 36, no. 10, 31 December 2008 (2008-12-31) * |
| 汤奇峰: "四川成都经济区农田生态***镉生态安全性预测预警研究", 《CNKI博士学位论文全文库》, 31 December 2007 (2007-12-31), pages 45 - 48 * |
| 赵雄等: "水稻土镉污染与水稻镉含量相关性研究", 《农业环境科学学报》, vol. 28, no. 11, 31 December 2009 (2009-12-31), pages 2236 - 2240 * |
| 钟来元等: "不同品种水稻全生育期内土壤Cd赋存形态及ω（Ｃｄ）变化特征", 《西北农业学报》, vol. 21, no. 3, 31 March 2012 (2012-03-31), pages 175 - 181 * |
| 陈建斌等: "有机物料对土壤中外源镉形态与生物有效性的影响研究", 《中国生态农业学报》, vol. 12, no. 3, 31 July 2004 (2004-07-31), pages 105 - 108 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104686267A (en) * | 2015-03-26 | 2015-06-10 | 四川省农业科学院分析测试中心 | Method for early prediction of heavy metal cadmium content in rice |
| CN104686267B (en) * | 2015-03-26 | 2017-08-25 | 四川省农业科学院分析测试中心 | The method of heavy metal cadmium content in early prediction rice |
| CN105701575A (en) * | 2016-01-26 | 2016-06-22 | 中国科学院沈阳应用生态研究所 | An agricultural product heavy metal risk assessment method based on a soil-crop system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103125280B (en) | 2015-01-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Shao et al. | Effects of controlled irrigation and drainage on growth, grain yield and water use in paddy rice | |
| Lou et al. | Straw coverage alleviates seasonal variability of the topsoil microbial biomass and activity | |
| Li et al. | Soil microbial response, water and nitrogen use by tomato under different irrigation regimes | |
| Islam et al. | Evaluation of SPAD and LCC based nitrogen management in rice (Oryza sativa L.) | |
| CN102577798A (en) | Method for identifying salt tolerance of corn | |
| CN104012267A (en) | Maize salt tolerance identification method | |
| CN105454012A (en) | Method for reducing cadmium content of rice seedling leaves, and rice seedling nutrient solution | |
| Parsapour et al. | C and N cycle monitoring under Quercus castaneifolia plantation | |
| Kay et al. | Optimum versus non-limiting water contents for root growth, biomass accumulation, gas exchange and the rate of development of maize (Zea mays L.) | |
| Liu et al. | Plant water deficit index-based irrigation under conditions of salinity | |
| CN104813883B (en) | Method for identifying stability of cadmium accumulation environment of grains of rice varieties | |
| CN108770614A (en) | A kind of Heat Tolerance of Wheat Cultivars evaluation method | |
| CN103125280B (en) | Safety monitoring alarm method of cadmium (Cd) in rice | |
| Wang et al. | Simulating cucumber plant heights using optimized growth functions driven by water and accumulated temperature in a solar greenhouse | |
| Tan et al. | Responses of soil nutrient and enzyme activities to long-term mulched drip irrigation (MDI) after the conversion of wasteland to cropland | |
| Lima et al. | Tolerance of sour passion fruit cultivars to salt stress in a semi-arid region | |
| CN112299924A (en) | Novel efficient biochemical potassium fulvate and preparation method thereof | |
| CN105145095B (en) | Capsicum is evaluated in different planting soils to the method for Cd resistances | |
| CN105123301B (en) | A kind of Forecasting Methodology of soil tobacco black shank morbidity potentiality | |
| CN103782782B (en) | Method for identifying late rice head sprouting flowering period drought-enduring type varieties in field | |
| Wafae et al. | Tillage systems effect on wheat yield in the Saïs region of Morocco | |
| CN110199854A (en) | A kind of identification method of Seedling Stage Salt Tolerance of Barley | |
| Ni et al. | Accurate model of nitrogen accumulation in transplanted rice under different nutrient distribution ratios | |
| Henry | Beneficial and Adverse Effects of Low Phosphorus Fertilization of Floriculture Species. | |
| Gui et al. | Floral analysis for Satsuma mandarin (Citrus unshiu Marc.) nutrient diagnosis based on the relationship between flowers and leaves |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150114 Termination date: 20161206 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |