CN100510702C - Soil organic matter colour comparison card and manufacturing method thereof - Google Patents
Soil organic matter colour comparison card and manufacturing method thereof Download PDFInfo
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- CN100510702C CN100510702C CNB2007100558605A CN200710055860A CN100510702C CN 100510702 C CN100510702 C CN 100510702C CN B2007100558605 A CNB2007100558605 A CN B2007100558605A CN 200710055860 A CN200710055860 A CN 200710055860A CN 100510702 C CN100510702 C CN 100510702C
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Abstract
The invention relates to a kind of soil organic color comparison card and the production method of it. It belongs to the kind of rapid test tool of quickly measuring the content of organic in the soil. Take the different areas soil samples with different organic content and devise the every soil sample into two portions and one portion, measure the soil organic content of different areas by the normal method and the other is stand-up; make up 0.5MNaHCO3 liquor; take this liquor and add the fresh soil sample into it and shake it sufficiently and filter it; observe the color of filter liquor of the every get soil sample and lay the filter liquor with different soil organic content in the hole of ceramic whiteware drib board and photo it individually and array it according to the organic content from small to large and make the arrayed standard color step on one card. The invention is convenience to carry and produce and the measurement is quick and reliable and the accuracy is high. It meets the pressing demand of the large farmer and scientific worker for the measuring the soil recipe and applying fertilizer.
Description
Technical field
The invention belongs to speed survey instrument of a kind of fast measuring soil organic matter content in the agricultural technology field and preparation method thereof.
Background technology
The soil organism is the mineral nutrition of plant and organotrophic source, it is again the energy substance of certain micro-organisms in the soil, simultaneously also be the key factor that forms soil texture, so physicochemical property such as the anti-fertilizer of the soil organism and soil, soil moisture conservation, permeable, resiliency, tilth, aeration status, the soil moisture have confidential relation.So the soil organism is one of important indicator of soil fertility, be the conventional analysis project that soil analysis must be done.Organic content is the important symbol of decision soil persistence fertility in the soil.
Conventional method is measured the content (standard method) of the soil organism: the conventional method of analysis of adopting Soil Science Society of China to recommend, promptly measure the soil organic carbon earlier, and then it is as follows to calculate organic method (dichromate method) operation steps:
1, abides by the standard method collection soil sample that pedotheque is gathered from the field, accurately take by weighing wind desiceted soil 0.1000-0.5000g, be put in the dry 150m1 triangular flask, accurately add 10ml0.4N K by 100 mesh sieves
2Cr
2O
7-H
2SO
4Solution is placed on the electric hot plate, and temperature is controlled at 170-180 ℃, puts little funnel on the triangular flask, could accurately clock 5 ± 0.5 minutes when real boiling.
2, disappear that boiling finishes takes off triangular flask from electric hot plate, cooling, water flushing triangular flask inwall and little funnel, the cumulative volume of solution should be controlled at about 50-60ml and be advisable in the bottle, keeps H in the mixed liquor
2SO
4Concentration be 2-3N, add 2-3 of adjacent coffee sieve quinoline indicator then, occur brownish red with the titration of standard ferrous sulphate to solution and be terminal point.Calculate the amount of organic carbon in the soil according to the amount that consumes ferrous sulphate, and then calculate organic amount.
3, do blank simultaneously, blank test takes by weighing ground pumice 0.2g, and other steps are measured identical with soil sample.But the overall solution volume before the titration is controlled at 30-40ml.
The said method complex operation step, do not satisfied vast farmers and scientific worker active demand to fertilization compositions based on earth measurement, therefore, it is necessary to develop a kind of equipment that can the fast measuring soil organic matter content, and also do not have both at home and abroad now a kind of making and simple to operate, portably use the specialist tools that is used to measure soil organic matter content easily.
Summary of the invention
The invention provides a kind of soil organic matter colour comparison card and preparation method thereof, to solve the complex operation step that exists when conventional method is measured the content of the soil organism, not satisfy vast farmers and scientific worker problem to the requirement of fertilization compositions based on earth measurement.The technical solution used in the present invention is:
One, get the soil sample of content of organic matter different regions, each soil sample all is divided into two, be divided into two parts, a measure the content of organic matter of variant regional soil according to conventional method, another part is standby;
Two, preparation 0.5MNaHCO
3Solution: take by weighing 42.0 gram NaHCO
3Pulvis is dissolved in them in about 800 ml distilled waters, is diluted to about 990 milliliters, regulates pH to 8.5 with 4NNaOH solution, is diluted to 1 liter at last, and room temperature is placed after 24 hours standby;
Three, measure 10 milliliters of the above-mentioned solution for preparing and be put in the dry extraction flask, in each standby soil sample of another part, take by weighing the fresh soil sample that is equivalent to wind desiceted soil 2 grams respectively, fully shake 200 times, be filtered with filter paper in the drying receptacle;
Four, repeating step three, observe the filtrate color of the soil at every turn obtain, and the content value of this soil organism that conventional method is recorded is recorded in the color of this filtrate, and the depth of filtrate color becomes tangible positive correlation with the content of the soil organism;
Five, the different filtrate of soil organic matter content is placed in the hole of ceramic whiteware spot plate, take photos respectively, selecting the content of organic matter is that 0.5%, 0.75%, 1.00%, 1.25%, 1.50%, 1.75%, 2.00%, 2.25%, 2.50%, 2.75%, 3.00%, 3.50%, 4.00%, 4.50%, 5.00% and 6.00% filtrate color is as the standard color range, and arrange from small to large by the content of organic matter, be made on the card arranging good standard color range.
The present invention is by a large amount of test of inventor, by observing the color of filtrate, this filtrate color is yellow, the yellow depth becomes tangible positive correlation with the content of the soil organism, the color that is to say the soil filtrate that the content of organic matter is high is dark, the soil filtrate that the content of organic matter is low of light color proofreaied and correct the content that fast determining method is measured the soil organism by the content of measuring the soil organism with conventional method again, invented soil organic matter colour comparison card by hundreds of times tests.On this card,, present the soil organic matter content difference from top to bottom successively, the standard color range that the filtrate color is different by left-to-right.
The soil organic matter colour comparison card of said structure is a kind of detection card that adopts the visual colorimetric determination method, when measuring soil organic matter content, also different according to the filtrate shade that the Different Results of soil organic matter content presents, compare with soil organic matter colour comparison card standard color range, and the content of definite soil organism.The present invention carries, easy to use, make simply, measure fast and reliable, the accuracy height.Satisfied vast farmers and scientific worker active demand to fertilization compositions based on earth measurement.
Description of drawings
Accompanying drawing is the reference diagram of embodiments of the invention 2.
Embodiment
Embodiment 1
One, get the soil sample of content of organic matter different regions, each soil sample all is divided into two, be divided into two parts, a measure the content of organic matter of variant regional soil according to conventional method, method adopts the method for introducing in the background technology of the present invention, and another part is standby;
Two, preparation 0.5MNaHCO
3Solution: take by weighing 42.0 gram NaHCO
3Pulvis is dissolved in them in about 800 ml distilled waters, is diluted to about 990 milliliters, regulates pH to 8.5 with 4NNaOH solution, is diluted to 1 liter at last, and room temperature is placed after 24 hours standby;
Three, measure 10 milliliters of the above-mentioned solution for preparing and be put in the dry extraction flask, in each standby soil sample of another part, take by weighing the fresh soil sample that is equivalent to wind desiceted soil 2 grams respectively, fully shake 200 times, be filtered with filter paper in the drying receptacle;
Four, repeating step three, observe the filtrate color of the soil at every turn obtain, and the content value of this soil organism that conventional method is recorded is recorded in the color of this filtrate, and the depth of filtrate color becomes tangible positive correlation with the content of the soil organism;
Five, the different filtrate of soil organic matter content is placed in the hole of ceramic whiteware spot plate, take photos respectively, selecting the content of organic matter is that 0.75%, 1.25%, 1.75%, 2.00%, 2.25%, 2.50%, 2.75%, 3.00% filtrate color is as the standard color range, and arrange from small to large by the content of organic matter, be made on the card arranging good standard color range.
Embodiment 2
One, get the soil sample of content of organic matter different regions, each soil sample all is divided into two, be divided into two parts, a measure the content of organic matter of variant regional soil according to conventional method, another part is standby;
Two, preparation 0.5MNaHCO
3Solution: take by weighing 42.0 gram NaHCO
3Pulvis is dissolved in them in about 800 ml distilled waters, is diluted to about 990 milliliters, regulates pH to 8.5 with 4NNaOH solution, is diluted to 1 liter at last, and room temperature is placed after 24 hours standby;
Three, measure 10 milliliters of the above-mentioned solution for preparing and be put in the dry extraction flask, in each standby soil sample of another part, take by weighing the fresh soil sample that is equivalent to wind desiceted soil 2 grams respectively, fully shake 200 times, be filtered with filter paper in the drying receptacle;
Four, repeating step three, observe the filtrate color of the soil sample at every turn obtain, and the content value of this soil organism that conventional method is recorded is recorded in the color of this filtrate, and the depth of filtrate color becomes tangible positive correlation with the content of the soil organism;
Five, the different filtrate of soil organic matter content is placed in the hole of ceramic whiteware spot plate, take photos respectively, selecting the content of organic matter is that 0.75%, 1.00%, 1.25%, 1.50%, 1.75%, 2.00%, 2.25%, 2.50%, 2.75%, 3.00%, 3.50%, 4.00% filtrate color is as the standard color range, and arrange from small to large by the content of organic matter, be made on the card arranging good standard color range.
As accompanying drawing, the plane is shaped on 12 circular colour bands on the card, laterally is 4 row, vertically is 3 row, and these 12 standard color ranges from left to right are arranged in order on card from top to bottom, and each color range top indicates corresponding soil organic matter content numerical value respectively.
Embodiment 3
One, get the soil sample of content of organic matter different regions, each soil sample all is divided into two, be divided into two parts, a measure the content of organic matter of variant regional soil according to conventional method, another part is standby;
Two, preparation 0.5MNaHCO
3Solution: take by weighing 42.0 gram NaHCO
3Pulvis is dissolved in them in about 800 ml distilled waters, is diluted to about 990 milliliters, regulates pH to 8.5 with 4NNaOH solution, is diluted to 1 liter at last, and room temperature is placed after 24 hours standby;
Three, measure 10 milliliters of the above-mentioned solution for preparing and be put in the dry extraction flask, in each standby soil sample of another part, take by weighing the fresh soil sample that is equivalent to wind desiceted soil 2 grams respectively, fully shake 200 times, be filtered with filter paper in the drying receptacle;
Four, repeating step three, observe the filtrate color of the soil at every turn obtain, and the content value of this soil organism that conventional method is recorded is recorded in the color of this filtrate, and the depth of filtrate color becomes tangible positive correlation with the content of the soil organism;
Five, the different filtrate of soil organic matter content is placed in the hole of ceramic whiteware spot plate, take photos respectively, selecting the content of organic matter is that 0.5%, 0.75%, 1.00%, 1.25%, 1.50%, 1.75%, 2.00%, 2.25%, 2.50%, 2.75%, 3.00%, 3.50%, 4.00%, 4.50%, 5.00% and 6.00% filtrate color is as the standard color range, and arrange from small to large by the content of organic matter, be made on the card arranging good standard color range.
Use and survey native example:
(1) measures 0.5MNaHCO
3Solution 10ml is placed in the dry extraction flask, takes by weighing the fresh soil sample to be measured that is equivalent to wind desiceted soil 2 grams, fully shakes 200 times, is filtered with filter paper in the drying receptacle;
(2) draw each 15 of two portions of soil extracts with dropper, be placed on respectively in two holes of ceramic whiteware spot plate;
(3) determine the content of this soil organism according to the color range of soil organic matter colour comparison card.
Claims (2)
1, a kind of soil organic matter colour comparison card is characterized in that it is made by the following step:
One, get content of organic matter difference, soil sample from different places, each soil sample all is divided into two, be divided into two parts, a measure the content of organic matter of variant regional soil according to conventional method, another part is standby;
Two, preparation 0.5MNaHCO
3Solution: take by weighing 42.0 gram NaHCO
3Pulvis is dissolved in them in about 800 ml distilled waters, is diluted to about 990 milliliters, regulates pH to 8.5 with 4NNaOH solution, is diluted to 1 liter at last, and room temperature is placed after 24 hours standby;
Three, measuring 10 milliliters of the above-mentioned solution for preparing is put in the dry extraction flask, in each standby soil sample of another part, take by weighing the fresh soil sample that is equivalent to wind desiceted soil 2 grams respectively, this fresh soil sample is put into extraction flask respectively, fully shake 200 times, be filtered with filter paper in the drying receptacle;
Four, repeating step three, observe the filtrate color of the soil sample at every turn obtain, and the content value of this soil sample organic matter that conventional method is recorded is recorded in the color of this filtrate, and the depth of filtrate color becomes tangible positive correlation with the content of the soil organism;
Five, the different filtrate of soil organic matter content is placed in the hole of ceramic whiteware spot plate, take photos respectively, selecting the content of organic matter is that 0.5%, 0.75%, 1.00%, 1.25%, 1.50%, 1.75%, 2.00%, 2.25%, 2.50%, 2.75%, 3.00%, 3.50%, 4.00%, 4.50%, 5.00% and 6.00% filtrate color is as the standard color range, and arrange from small to large by the content of organic matter, be made on the card arranging good standard color range.
2, a kind of method of making soil organic matter colour comparison card as claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100558605A CN100510702C (en) | 2007-07-11 | 2007-07-11 | Soil organic matter colour comparison card and manufacturing method thereof |
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|---|---|---|---|
| CNB2007100558605A CN100510702C (en) | 2007-07-11 | 2007-07-11 | Soil organic matter colour comparison card and manufacturing method thereof |
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| CN100510702C true CN100510702C (en) | 2009-07-08 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571490B (en) * | 2008-04-30 | 2010-12-29 | 罗艺斌 | Method for preparing PH test paper standard colorimetric plate and colorimetric plate produced by same |
| CN101382496B (en) * | 2008-09-27 | 2011-06-29 | 广西师范大学 | Standard colorimetric system for judging end color for common indicator for titration analysis |
| CN101923049A (en) * | 2010-03-10 | 2010-12-22 | 田农 | Quick detection of nickel plating waste water in production before discharge |
| CN103278496B (en) * | 2013-04-26 | 2016-02-10 | 南京农业大学 | A kind of method distinguishing organic carbon in brown coal and brown coal extract and organic fertilizer |
| CN103575665A (en) * | 2013-10-22 | 2014-02-12 | 浙江大学 | Hematuresis color chart |
| CN106053447B (en) * | 2016-05-11 | 2020-08-07 | 首都师范大学 | Method for measuring soil carbon sequestration effect in rice growing season and biochar composition |
| CN109142338B (en) * | 2018-07-19 | 2020-11-06 | 长江大学 | Soil property comparison detection method |
| CN109142344A (en) * | 2018-09-19 | 2019-01-04 | 南昌航空大学 | A kind of method and device of field quick detection dispersion total Iron in Drinking Water content |
| CN111445346A (en) * | 2020-04-07 | 2020-07-24 | 北京农业信息技术研究中心 | Crop growth detection device and method |
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Non-Patent Citations (2)
| Title |
|---|
| 土壤溶液和水体中水溶性有机碳的比色测定. 占新华，周立祥.中国环境科学，第22卷第5期. 2002 |
| 土壤溶液和水体中水溶性有机碳的比色测定. 占新华，周立祥.中国环境科学，第22卷第5期. 2002 * |
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