CN101493404B - Method for detecting loss-controlling rate of fertiliser nutrient loss-controlling agent agent - Google Patents
Method for detecting loss-controlling rate of fertiliser nutrient loss-controlling agent agent Download PDFInfo
- Publication number
- CN101493404B CN101493404B CN2008100195095A CN200810019509A CN101493404B CN 101493404 B CN101493404 B CN 101493404B CN 2008100195095 A CN2008100195095 A CN 2008100195095A CN 200810019509 A CN200810019509 A CN 200810019509A CN 101493404 B CN101493404 B CN 101493404B
- Authority
- CN
- China
- Prior art keywords
- leaching
- urea
- loss
- group
- sample
- 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.)
- Expired - Fee Related
Links
Abstract
The invention relates to a detection method of loss control ratio of a loss control agent of fertilizer nutrients. The method comprises the following steps: setting three groups which are a background group, a control group and a sample group in detection; putting fine sand in a leaching device, adding distilled water for infiltration, draining water, fully mixing the control group and the sample group with equivalent mass of fine sand, and laying on the fine sand; covering a sample layer with the fine sand, and infiltrating with the distilled water, draining the water before leaching; adding the distilled water again, leaching at fixed flow rate, collecting a leaching water sample, measuring urea content of the leaching water sample by diacetyl-oxime spectrophotography, measuring light absorption values at 460nm wavelength; and calculating the measured values according to a formula to obtain the loss control ratio. The method helps accurately detect the loss control ratio of the loss control agent of the fertilizer nutrients by a simple and effective way, thus realizing effective control of the product quality, and producing the products meeting the market and social requirements.
Description
Technical field
The present invention relates to a kind of product quality detection method, be specifically related to whether qualified detection method up to standard of its control mistake rate of a kind of chemical fertilizer nutrient controlled release agent finished product.
Background technology
According to State Statistics Bureau statistics, China's chemical fertilizer consumption figure accounted for 37.1% of world's aggregate consumption in 2006, and chemical fertilizer production is more and more prosperous, and a slice is gratifying, but we also will see suffering joyful the time, the high energy consumption of chemical fertilizer production, and low effect also let us is stared.Usual manner is used chemical fertilizer, and plant can only absorb about 30%, and about 70% are run off, and not only causes economic loss but also cause environmental pollution.How to control fertilizer loss, reduce agriculture production cost, reduce environmental pollution, all conduct a research as important problem in the China and even the whole world.At existing situation; China has developed chemical fertilizer nutrient controlled release agent at present voluntarily; chemical fertilizer nutrient controlled release agent can effectively be controlled the loss of chemical fertilizer nutrient; saving the peasant drops into; improve fertilizer usefulness, improve the soil, fertilizer enterprises is reduced production costs; reduce environmental pollution, the conservation of nature environment is of great immediate significance.But chemical fertilizer nutrient controlled release agent fails to drop into volume production at present, if if input amount does not have the effective product quality detection method of a cover postpartum, be difficult to the quality condition of product is controlled, also is difficult to produce the product that meets market and social desirability.
Summary of the invention
The objective of the invention is to develop a kind of method of simple and easy, efficient, stable detection loss-controlling rate of fertiliser nutrient loss-controlling agent agent, thereby the product quality after the chemical fertilizer nutrient controlled release agent volume production is controlled effectively.
The present invention is achieved by the following technical solutions:
A kind of detection method of loss-controlling rate of fertiliser nutrient loss-controlling agent agent may further comprise the steps:
Establish three groups respectively when (1) detecting: one group is the background group that does not add urea and chemical fertilizer nutrient controlled release agent, and one group is the control group that adds 1g urea, and one group is the sample sets that adds 1g urea and 1%～25% chemical fertilizer nutrient controlled release agent;
(2) the high fine sand of 10～40cm of packing in the leaching device adds after 50～300ml distilled water fully soaks into, water is put dried, with control group and sample sets respectively with etc. the fine sand of quality be tiled on the fine sand after fully mixing; On sample layer, cover fine sand 1～2cm height, add 5～100ml distilled water, soaked into 5～100 minutes, before leaching begins water is put dried;
(3) add 100～300ml distilled water, add in the water process and to guarantee that the dust devil top layer do not have ponding, fixed flow rate with 10～50ml/min begins leaching, collect leaching water sample total amount 100～300ml, with the Diacetylmonoxime spectrophotometric method, measure urea content in the leaching water sample, record light absorption value at wavelength 460nm place;
(4) numerical value that above step is measured calculates by formula, draws control mistake rate.
A kind of detection method of loss-controlling rate of fertiliser nutrient loss-controlling agent agent, the described numerical value that records, calculate by following formula:
(1) leaching water sample urea content computing formula is as follows:
M＝C×V×K
Wherein: M---urea total content in the leaching water sample, mg;
C---with the light absorption value is index, urea concentration from the leaching water sample that the urea typical curve checks in, mg/L;
V---leaching water sample cumulative volume, ml;
K---extension rate;
(2) control mistake rate computing formula is as follows:
M1: the total leaching loss amount of control group urea;
M2: the total leaching loss amount of experimental group urea;
A: control mistake rate;
B: the quality of urea is lost in the urea of adding or control.
A kind of detection method of loss-controlling rate of fertiliser nutrient loss-controlling agent agent, the chemical fertilizer nutrient controlled release agent of adding 10% in the described sample sets.
A kind of detection method of loss-controlling rate of fertiliser nutrient loss-controlling agent agent, described adding distilled water infiltrating time is 20 minutes.
A kind of detection method of loss-controlling rate of fertiliser nutrient loss-controlling agent agent, described fixed flow rate are 10ml/min.
A kind of detection method of loss-controlling rate of fertiliser nutrient loss-controlling agent agent, described distilled water addition is 200ml, the leaching water sample of collection is 200ml.
Principle of the present invention is as follows:
The Diacetylmonoxime genealogy of law is according to the chromogenic reaction of Diacetylmonoxime and urea formation coloured complex diazine derivatives, and its reaction equation is as follows:
Diazine derivatives has maximum absorption band at wavelength 460nm, presents yellow, and maximum absorption band place absorbance (OD value) size becomes corresponding relation with the content of diazine derivatives, also promptly becomes corresponding relation with urea content.Can extrapolate urea content in the leaching water sample by the corresponding relation of OD value in the urea concentration typical curve and urea content.
The detection method of loss-controlling rate of fertiliser nutrient loss-controlling agent agent of the present invention can accurately detect the control mistake rate of chemical fertilizer nutrient controlled release agent by simple and effective way, thereby detected control mistake rate is compared with the predefined standard value of product, to draw the whether qualified judgement of this chemical fertilizer nutrient controlled release agent finished product, can realize like this quality condition of product is effectively controlled, produce the product that meets market and social desirability.
Embodiment
Embodiment 1
A kind of detection method of loss-controlling rate of fertiliser nutrient loss-controlling agent agent may further comprise the steps:
Establish three groups respectively when (1) detecting: one group is the background group that does not add urea and chemical fertilizer nutrient controlled release agent, and one group is the control group that adds 1g urea, and one group is the sample sets that adds 1g urea and 1% chemical fertilizer nutrient controlled release agent;
(2) the high fine sand of 10cm of packing in the leaching device adds after 50ml distilled water fully soaks into, water is put dried, with control group and sample sets respectively with etc. the fine sand of quality be tiled on the fine sand after fully mixing; On sample layer, cover fine sand 1cm height, add 5ml distilled water, soaked into 5 minutes, before leaching begins water is put dried;
(3) add 100ml distilled water, add and guarantee in the water process that the dust devil top layer do not have ponding, begin leaching with the fixed flow rate of 10ml/min, collect leaching water sample total amount 300ml, with the Diacetylmonoxime spectrophotometric method, measure urea content in the leaching water sample, record light absorption value at wavelength 460nm place;
(4) numerical value that above step is measured, calculate by following formula:
(a) leaching water sample urea content computing formula is as follows:
M＝C×V×K
Wherein: M---urea total content in the leaching water sample, mg;
C---with the light absorption value is index, urea concentration from the leaching water sample that the urea typical curve checks in, mg/L;
V---leaching water sample cumulative volume, ml;
K---extension rate;
(b) control mistake rate computing formula is as follows:
M1: the total leaching loss amount of control group urea;
M2: the total leaching loss amount of experimental group urea;
A: control mistake rate;
B: the quality of urea is lost in the urea of adding or control.
Embodiment 2
A kind of detection method of loss-controlling rate of fertiliser nutrient loss-controlling agent agent is characterized in that may further comprise the steps:
Establish three groups respectively when (1) detecting: one group is the background group that does not add urea and chemical fertilizer nutrient controlled release agent, and one group is the control group that adds 1g urea, and one group is the sample sets that adds 1g urea and 25% chemical fertilizer nutrient controlled release agent;
(2) the high fine sand of 40cm of packing in the leaching device adds after 300ml distilled water fully soaks into, water is put dried, with control group and sample sets respectively with etc. the fine sand of quality be tiled on the fine sand after fully mixing; On sample layer, cover fine sand 2cm height, add 100ml distilled water, soaked into 100 minutes, before leaching begins water is put dried;
(3) add 300ml distilled water, add and guarantee in the water process that the dust devil top layer do not have ponding, begin leaching with the fixed flow rate of 50ml/min, collect leaching water sample total amount 300ml, with the Diacetylmonoxime spectrophotometric method, measure urea content in the leaching water sample, record light absorption value at wavelength 460nm place;
(4) numerical value that above step is measured, calculate by following formula:
(a) leaching water sample urea content computing formula is as follows:
M＝C×V×K
Wherein: M---urea total content in the leaching water sample, mg;
C---with the light absorption value is index, urea concentration from the leaching water sample that the urea typical curve checks in, mg/L;
V---leaching water sample cumulative volume, ml;
K---extension rate;
(b) control mistake rate computing formula is as follows:
M1: the total leaching loss amount of control group urea;
M2: the total leaching loss amount of experimental group urea;
A: control mistake rate;
B: the quality of urea is lost in the urea of adding or control.
Embodiment 3
A kind of detection method of loss-controlling rate of fertiliser nutrient loss-controlling agent agent is characterized in that may further comprise the steps:
Establish three groups respectively when (1) detecting: one group is the background group that does not add urea and chemical fertilizer nutrient controlled release agent, and one group is the control group that adds 1g urea, and one group is the sample sets that adds 1g urea and 10% chemical fertilizer nutrient controlled release agent;
(2) the high fine sand of 20cm of packing in the leaching device adds after 120ml distilled water fully soaks into, water is put dried, with control group and sample sets respectively with etc. the fine sand of quality be tiled on the fine sand after fully mixing; On sample layer, cover fine sand 1.5cm height, add 50ml distilled water, soaked into 20 minutes, before leaching begins water is put dried;
(3) add 200ml distilled water, add and guarantee in the water process that sand post top layer do not have ponding, begin leaching with the fixed flow rate of 10ml/min, collect leaching water sample total amount 200ml, with the Diacetylmonoxime spectrophotometric method, measure urea content in the leaching water sample, record light absorption value at wavelength 460nm place;
(4) numerical value that above step is measured, calculate by following formula:
(a) leaching water sample urea content computing formula is as follows:
M＝C×V×K
Wherein: M---urea total content in the leaching water sample, mg;
C---with the light absorption value is index, urea concentration from the leaching water sample that the urea typical curve checks in, mg/L;
V---leaching water sample cumulative volume, ml;
K---extension rate;
(b) control mistake rate computing formula is as follows:
M1: the total leaching loss amount of control group urea;
M2: the total leaching loss amount of experimental group urea;
A: control mistake rate;
B: the quality of urea is lost in the urea of adding or control.
Claims (5)
1. the detection method of a loss-controlling rate of fertiliser nutrient loss-controlling agent agent is characterized in that may further comprise the steps:
Establish three groups respectively when (1) detecting: one group is the background group that does not add urea and chemical fertilizer nutrient controlled release agent, and one group is the control group that adds 1g urea, and one group is the sample sets that is added with 1g urea and the add chemical fertilizer nutrient controlled release agent of urea 1%～25%;
(2) the high fine sand of 10～40cm of packing in the leaching device adds after 50～300ml distilled water fully soaks into, water is put dried, with control group and sample sets respectively with etc. the fine sand of quality be tiled on the fine sand after fully mixing; On sample layer, cover fine sand 1～2cm height, add 5～100ml distilled water, soaked into 5～100 minutes, before leaching begins water is put dried;
(3) add 100～300ml distilled water, add in the water process and to guarantee that sand post top layer do not have ponding, fixed flow rate with 10～50ml/min begins leaching, collect leaching water sample total amount 100～300ml, with the Diacetylmonoxime spectrophotometric method, measure urea content in the leaching water sample, record light absorption value at wavelength 460nm place;
(4) numerical value that above step is measured calculates by following formula, draws control mistake rate:
1) leaching water sample urea content computing formula is as follows:
M＝C×V×K
Wherein: M---urea total content in the leaching water sample, mg;
C---with the light absorption value is index, urea concentration from the leaching water sample that the urea typical curve checks in, mg/L;
V---leaching water sample cumulative volume, ml;
K---extension rate;
2) control mistake rate computing formula is as follows:
M1: the total leaching loss amount of control group urea;
M2: the total leaching loss amount of experimental group urea;
A: control mistake rate;
B: the quality of urea is lost in the urea of adding or control.
2. the detection method of a kind of loss-controlling rate of fertiliser nutrient loss-controlling agent agent according to claim 1 is characterized in that adding in the described sample sets 10% chemical fertilizer nutrient controlled release agent.
3. the detection method of a kind of loss-controlling rate of fertiliser nutrient loss-controlling agent agent according to claim 1 is characterized in that described 5～100ml distilled water that adds, and soaks into 20 minutes.
4. the detection method of a kind of loss-controlling rate of fertiliser nutrient loss-controlling agent agent according to claim 1 is characterized in that described fixed flow rate is 10ml/min.
5. the detection method of a kind of loss-controlling rate of fertiliser nutrient loss-controlling agent agent according to claim 1 is characterized in that the distilled water addition is 200ml in the described step (3), and the leaching water sample of collection is 200ml.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100195095A CN101493404B (en) | 2008-01-21 | 2008-01-21 | Method for detecting loss-controlling rate of fertiliser nutrient loss-controlling agent agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100195095A CN101493404B (en) | 2008-01-21 | 2008-01-21 | Method for detecting loss-controlling rate of fertiliser nutrient loss-controlling agent agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101493404A CN101493404A (en) | 2009-07-29 |
| CN101493404B true CN101493404B (en) | 2011-08-10 |
Family
ID=40924107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100195095A Expired - Fee Related CN101493404B (en) | 2008-01-21 | 2008-01-21 | Method for detecting loss-controlling rate of fertiliser nutrient loss-controlling agent agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101493404B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9642919B2 (en) | 2012-10-05 | 2017-05-09 | Oxford Pharmascience Limited | Layered double hydroxides |
| US10272057B2 (en) | 2012-10-05 | 2019-04-30 | Oxford Pharmascience Limited | Layered double hydroxides |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983744B (en) * | 2014-05-26 | 2016-04-20 | 云南云叶化肥股份有限公司 | A kind of sustained-release fertilizer material pick-up unit and detection method |
| CN104062402B (en) * | 2014-05-26 | 2016-03-16 | 云南云叶化肥股份有限公司 | A kind of sustained-release fertilizer material pick-up unit and detection method |
| CN106198440A (en) * | 2016-07-13 | 2016-12-07 | 中国农业大学 | A kind of dynamic characterization method that Controlled Release Fertilizer nutrient discharges through film |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002154888A (en) * | 2000-09-07 | 2002-05-28 | Mitsubishi Chemicals Corp | Classifying method for granular fertilizer and classifying equipment for granular fertilizer |
| DE10110241A1 (en) * | 2001-02-27 | 2002-09-05 | Bayer Ag | Determining water content of solutions of Group IIIb and lanthanide compounds involves comparing areas under spectral absorption bands |
| CN2909242Y (en) * | 2006-06-02 | 2007-06-06 | 汤新华 | Instrument for quickly investigating component content of fertilizer |
| CN101082588A (en) * | 2006-06-02 | 2007-12-05 | 汤新华 | Method for rapid detecting chemical fertillizers effective phosphorus content |
-
2008
- 2008-01-21 CN CN2008100195095A patent/CN101493404B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002154888A (en) * | 2000-09-07 | 2002-05-28 | Mitsubishi Chemicals Corp | Classifying method for granular fertilizer and classifying equipment for granular fertilizer |
| DE10110241A1 (en) * | 2001-02-27 | 2002-09-05 | Bayer Ag | Determining water content of solutions of Group IIIb and lanthanide compounds involves comparing areas under spectral absorption bands |
| CN2909242Y (en) * | 2006-06-02 | 2007-06-06 | 汤新华 | Instrument for quickly investigating component content of fertilizer |
| CN101082588A (en) * | 2006-06-02 | 2007-12-05 | 汤新华 | Method for rapid detecting chemical fertillizers effective phosphorus content |
Non-Patent Citations (2)
| Title |
|---|
| 余立祥等.化肥"控失"对作物氮素农学利用率的影响.安徽农学通报.2007,13(24),25-26. |
| 吴跃进等."控失化肥"示范应用效果及机理研究综述.安徽农学通报.2007,13(24),22-24. |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9642919B2 (en) | 2012-10-05 | 2017-05-09 | Oxford Pharmascience Limited | Layered double hydroxides |
| US10272057B2 (en) | 2012-10-05 | 2019-04-30 | Oxford Pharmascience Limited | Layered double hydroxides |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101493404A (en) | 2009-07-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101493404B (en) | Method for detecting loss-controlling rate of fertiliser nutrient loss-controlling agent agent | |
| Liu et al. | Biochar's impact on dissolved organic matter (DOM) export from a cropland soil during natural rainfalls | |
| Brown et al. | Characterizing the subsurface chlorophyll a maximum in the Chukchi Sea and Canada Basin | |
| Guo et al. | Influences of stormwater concentration infiltration on soil nitrogen, phosphorus, TOC and their relations with enzyme activity in rain garden | |
| Dawson et al. | Is in-stream processing an important control on spatial changes in carbon fluxes in headwater catchments? | |
| Müller et al. | The geochemistry of the Yangtze River: Seasonality of concentrations and temporal trends of chemical loads | |
| Webster et al. | Modelling carbon dynamics and response to environmental change along a boreal fen nutrient gradient | |
| Deirmendjian et al. | Hydro-ecological controls on dissolved carbon dynamics in groundwater and export to streams in a temperate pine forest | |
| Cai et al. | Effects of temperature and nutrients on phytoplankton biomass during bloom seasons in Taihu Lake | |
| Pilkington et al. | Effects of increased deposition of atmospheric nitrogen on an upland moor: leaching of N species and soil solution chemistry | |
| Wang et al. | The influence of hyporheic upwelling fluxes on inorganic nitrogen concentrations in the pore water of the Weihe River | |
| CN105069693A (en) | Water area health evaluation method | |
| Siddiqui et al. | Integrating atmospheric deposition-driven nutrients (N and P), microbial and biogeochemical processes in the watershed with carbon and nutrient export to the Ganga River | |
| Song et al. | Rainfall driven transport of carbon and nitrogen along karst slopes and associative interaction characteristic | |
| Haywood et al. | Investigation of an early season river flood pulse: Carbon cycling in a subtropical estuary | |
| CN103076294B (en) | A kind of method measuring stem of noble dendrobium alkaloid | |
| Sullivan et al. | Modeling hydrodynamics, water temperature, and water quality in the Klamath River upstream of Keno Dam, Oregon, 2006-09 | |
| Holm‐Hamen et al. | Chemical and biological characteristics of a water column in Lake Tahoe 1 | |
| Zhang et al. | Identification of nitrogen sources and cycling along freshwater river to estuarine water continuum using multiple stable isotopes | |
| Brugger et al. | Immobilization and bacterial utilization of dissolved organic carbon entering the riparian zone of the alpine Enns River, Austria | |
| van Oorschot et al. | The influence of soil desiccation on plant production, nutrient uptake and plant nutrient availability in two French floodplain grasslands | |
| Agboola et al. | Seasonality and environmental drivers of biological productivity on the western Hokkaido coast, Ishikari Bay, Japan | |
| Green et al. | Plankton community structure and export of C, N, P and Si in the Antarctic Circumpolar Current | |
| Zhang et al. | Adsorption and desorption characteristics of metal (oid) s in the yellow soils of a typical karst area, southwest China | |
| Arellano | Production and biodegradability of dissolved organic carbon from dIfferent litter sources |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20170121 |