CN102432402A - Adding method for inhibitor in stable fertilizer - Google Patents

Adding method for inhibitor in stable fertilizer Download PDF

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CN102432402A
CN102432402A CN2011102794505A CN201110279450A CN102432402A CN 102432402 A CN102432402 A CN 102432402A CN 2011102794505 A CN2011102794505 A CN 2011102794505A CN 201110279450 A CN201110279450 A CN 201110279450A CN 102432402 A CN102432402 A CN 102432402A
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fertilizer
addition
soil
dyhard
value
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陈丽娟
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SHENZHEN SEED GAIN BIOTECHNOLOGY CO Ltd
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SHENZHEN SEED GAIN BIOTECHNOLOGY CO Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
    • Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures

Abstract

The invention creation discloses an adding method for an inhibitor in a stable fertilizer, wherein the method adds the inhibitor according to the nitrogen content in the fertilizer, comprising the following steps: obtaining varieties of nitrogen forms contents in the fertilizer; determining the adding amount of an urease inhibitor hydroquinone according to the obtained varieties forms of nitrogen contents in the obtained fertilizer and soil properties; determining the adding amount of an nitrification inhibitor dicyandiamide according to the obtained varieties forms of nitrogen contents in the obtained fertilizer and the soil properties. The invention creation gives calculation methods on use amounts of the urease inhibitor hydroquinone and the nitrification inhibitor dicyandiamide according to the characteristics of different soils and contents of different forms of nitrogen in the fertilizer product. The adding method for the inhibitor in the stable fertilizer also enhances the pertinence of formula of stable fertilizer, and is more beneficial for lengthening fertilizer effect for the stable fertilizer, and improves the use ratio of the fertilizer.

Description

The addition means of suppressor factor in the stability fertilizer
Technical field
The present invention relates to stable technical field of fertilizers, relate in particular to the addition means of suppressor factor in a kind of stable fertilizer.
Background technology
Existing stable fertilizer additive technology is on the basis of nitrogenous fertilizer, to have added nitrification inhibitors such as urease inhibitor such as quinhydrones and Dyhard RU 100, has played to delay hydrolysis of urea and nitrification, thereby has reached the effect that prolongs fertilizer efficiency; Other has the part technology to be added with humic acid and plant growth regulating substance, has played the effect of coordinate plant growth.
Disclose No. 200510044462.4 with reference to Chinese invention patent and disclose a kind of long-acting added-acting additive for composite fertilizer; Wherein, This additive is formed: urease inhibitor 5%-30%, nitrification inhibitor 10%-65%, sorbent material 10%-65%; Above raw material is carried out thorough mixing at normal temperatures and pressures in proportion, can obtain long-acting added-acting additive for composite fertilizer after sieving.And another Chinese invention patent discloses a kind of long-acting complex fertilizer additive for 99113382.X number, and it mixes raw material pulverizing such as quinhydrones, Dyhard RU 100, is added in the compound fertilizer in nitrogenous fertilizer 6.5% ratio then, thereby processes long-acting complex fertilizer.Yet; There are many defectives in these prior aries, and it according to the nitrogen proportioning of different shape in the fertilizer product, does not provide the different additives proportioning; And be the consumption that calculates additive according to total nitrogen content in the compound fertilizer, as adding according to nitrogenous fertilizer 6.5% ratio in the 99113382.X patent.But practical situation are, the product that urea nitrogen content is high, and it should add more urease inhibitor; And the high product of nitrate nitrogen content; Should reduce the addition of nitrification inhibitor, or not with nitrification inhibitor, yet all do not consider this point in the prior art; This compound fertilizer that will cause finally processing does not reach good effect, is unfavorable for giving full play to the fertile fertilizer efficiency of compound.
So, to the defective that exists in the above-mentioned prior art, be necessary research and development, the addition means of suppressor factor in a kind of stable fertilizer is provided.
Summary of the invention
The purpose of the present invention's creation is to provide the addition means of suppressor factor in a kind of stable fertilizer; Add the consumption of urease inhibitor hydroquinone and nitrification inhibitor Dyhard RU 100 according to the nitrogen content of different shape; Improved the specific aim of stable fertilizer formula; Help prolonging the fertilizer efficiency of stable fertilizer, improve fertilizer utilization ratio.
The embodiment of the invention is achieved in that the addition means of suppressor factor in a kind of stable fertilizer, and its nitrogen content according to different shape in the fertilizer adds suppressor factor, comprises the steps:
Obtain the content of various nitrogen forms in the fertilizer;
According to various nitrogen form content in the fertilizer that is obtained, calculate the addition of urease inhibitor hydroquinone;
According to various nitrogen form content in the fertilizer that is obtained, calculate the addition of nitrification inhibitor Dyhard RU 100.
Further, according to various nitrogen form content in the fertilizer that is obtained, the step of calculating the addition of urease inhibitor hydroquinone comprises:
According to the proportioning raw materials of fertilizer, by formula M H=M U* K calculates the addition of urease inhibitor hydroquinone; Wherein, M HAddition for quinhydrones in the fertilizer product per ton; M UQuality for urea in the fertilizer product per ton; K is a constant, chooses between 0.0001-0.01 according to the soil practical situation.
Further, said according to various nitrogen form content in the fertilizer that is obtained, the step of calculating the addition of nitrification inhibitor Dyhard RU 100 comprises:
According to the proportioning raw materials of fertilizer, by formula M D=M U* K 2+ M A* K 3+ M A '* K 4Calculate the addition of nitrification inhibitor Dyhard RU 100; Wherein, M DAddition for Dyhard RU 100 in the fertilizer product per ton; M UAddition for urea in the fertilizer per ton; K 2Be constant, between 0.001-0.1, choose according to practical situation; M ABe the addition of ammonium chloride in the fertilizer per ton, K 3Be constant, between 0.0005-0.05, choose according to practical situation; M A 'Be the addition of ammonium sulfate in the fertilizer per ton, K 4Be constant, between 0.0005-0.05, choose according to practical situation.
Further, said K pH-value determination pH comprises the steps:
According to the soil sampling standard, get the soil in desire plantation crop plot, and carry out pre-treatment;
Get 12 parts in this soil, every part of 10g adds urea 1g, adds quinhydrones 0 respectively, 0.0005g, 0.001g, 0.002g, 0.004g, 0.006g;
The arithmetical av that the residual variance rate of mensuration urea, the row of making even are measured the result is the mensuration result, and with the residual variance rate of urea the quinhydrones addition is mapped, and gets the pairing quinhydrones addition of curve break as the K value.
Further, said K 2PH-value determination pH comprises the steps:
The pH value of testing soil is not if the pH value below 5.5, is then added nitrification inhibitor, each constant K nAll get 0;
,, get desire plantation crop plot soil, and carry out pre-treatment at neutrality more than 5.5 and alkaline soil for the pH value according to the soil sampling standard;
Get 12 parts in this soil, every part of 10g adds urea 1g, adds Dyhard RU 100 0 respectively, 0.001g, 0.002g, 0.004g, 0.006g, 0.008g;
Measure the inhibiting nitrification rate, the row of making even is measured result's arithmetical av for measuring the result, and to the mapping of Dyhard RU 100 addition, getting the pairing Dyhard RU 100 addition of curve break is K with the inhibiting nitrification rate 2Value.
Further, said K 3PH-value determination pH comprises the steps:
The pH value of testing soil is not if the pH value below 5.5, is then added nitrification inhibitor, each constant K nAll get 0;
,, get desire plantation crop plot soil, and carry out pre-treatment at neutrality more than 5.5 and alkaline soil for the pH value according to the soil sampling standard;
Get 12 parts in this soil, every part of 10g adds ammonium chloride 1g, adds Dyhard RU 100 0 respectively, 0.001g, 0.002g, 0.004g, 0.006g, 0.008g;
Measure the inhibiting nitrification rate, the row of making even is measured result's arithmetical av for measuring the result, and to the mapping of Dyhard RU 100 addition, getting the pairing Dyhard RU 100 addition of curve break is K with the inhibiting nitrification rate 3Value.
Further, said K 4PH-value determination pH comprises the steps:
The pH value of testing soil is not if the pH value below 5.5, is then added nitrification inhibitor, each constant K nAll get 0;
,, get desire plantation crop plot soil, and carry out pre-treatment at neutrality more than 5.5 and alkaline soil for the pH value according to the soil sampling standard;
Get 12 parts in this soil, every part of 10g adds ammonium sulfate 1g, adds Dyhard RU 100 0 respectively, 0.001g, 0.002g, 0.004g, 0.006g, 0.008g;
Measure the inhibiting nitrification rate, the row of making even is measured result's arithmetical av for measuring the result, and to the mapping of Dyhard RU 100 addition, getting the pairing Dyhard RU 100 addition of curve break is K with the inhibiting nitrification rate 4Value.
In the present invention's creation; Nitrogen content according to different shape in the characteristic of different soils and the fertilizer product; Provided the quantity algorithm of using of urease inhibitor hydroquinone and nitrification inhibitor Dyhard RU 100; Improve the specific aim of stable fertilizer formula, helped prolonging the fertilizer efficiency of stable fertilizer more, improved fertilizer utilization ratio.
Description of drawings
Fig. 1 is a flow process diagram of the present invention.
Fig. 2 is with the residual variance rate of the urea curve diagram that mapping obtains to the quinhydrones addition in the embodiment of the invention 1.
Fig. 3 is with the urea inhibiting nitrification rate curve diagram that mapping obtains to the quinhydrones addition in the embodiment of the invention 2.
Fig. 4 is with the ammonium chloride inhibiting nitrification rate curve diagram that mapping obtains to the Dyhard RU 100 addition in the embodiment of the invention 2.
Fig. 5 is with the ammonium sulfate inhibiting nitrification rate curve diagram that mapping obtains to the Dyhard RU 100 addition in the embodiment of the invention 2 of the present invention.
Embodiment
For the purpose, technical scheme and the advantage that make this creation is clearer,, the present invention's creation is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Please with reference to shown in Figure 1; The addition means system that the present invention creates suppressor factor in the stable fertilizer adds according to the nitrogen content of different shape in the fertilizer; Comprise the steps: to obtain the content of various nitrogen forms in the fertilizer; Wherein, the content of various nitrogen form during the content of said various nitrogen forms can be supplied raw materials by fertiliser prodn side and obtaining; According to various nitrogen form content and soil characteristic in the fertilizer that is obtained, confirm the addition of urease inhibitor hydroquinone; According to various nitrogen form content and soil characteristic in the fertilizer that is obtained, confirm the addition of nitrification inhibitor Dyhard RU 100.
According to various nitrogen form content in the fertilizer that is obtained, according to the proportioning raw materials of fertilizer, by formula M H=M U* K calculates the addition of urease inhibitor hydroquinone; Wherein, M HBe the addition of quinhydrones in the fertilizer product per ton, unit is a kilogram; M UBe the quality of urea in the fertilizer product per ton, unit is a kilogram; K is a constant, chooses between 0.0001-0.01 according to the soil practical situation.
Wherein, the K values determination method comprises the steps:
According to the soil sampling standard, get the soil in desire plantation crop plot, and carry out pre-treatment;
Get 12 parts in this soil, every part of 10g adds urea 1g, adds quinhydrones 0 respectively, 0.0005g, 0.001g, 0.002g, 0.004g, 0.006g;
The arithmetical av that the residual variance rate of mensuration urea, the row of making even are measured the result is the mensuration result, and with the residual variance rate of urea the quinhydrones addition is mapped, and gets the pairing quinhydrones addition of curve break as the K value.The quinhydrones addition can be done suitable adjustment according to experimental result in the actually operating, and to obtain accurate values more, the result that the row of making even in the present embodiment is measured is as test result.
According to various nitrogen form content in the fertilizer that is obtained, according to the proportioning raw materials of fertilizer, by formula M D=M U* K 2+ M A* K 3+ M A '* K 4Calculate the addition of nitrification inhibitor Dyhard RU 100.Wherein,
M DBe the addition of Dyhard RU 100 in the fertilizer product per ton, unit is a kilogram;
M UBe the addition of urea in the fertilizer per ton, unit is a kilogram; K 2Be constant, between 0.001-0.1, choose according to practical situation;
M ABe the addition of ammonium chloride in the fertilizer per ton, unit is a kilogram, K 3Be constant, between 0.0005-0.05, choose according to practical situation;
M A 'Be the addition of ammonium sulfate in the fertilizer per ton, unit is a kilogram, K 4Be constant, between 0.0005-0.05, choose according to practical situation.
Said K 2Measuring method comprise the steps:
The pH value of testing soil is not if the pH value below 5.5, is then added nitrification inhibitor, each constant K nAll get 0;
,, get desire plantation crop plot soil, and carry out pre-treatment at neutrality more than 5.5 and alkaline soil for the pH value according to the soil sampling standard;
Get 12 parts in this soil, every part of 10g adds urea 1g, adds Dyhard RU 100 0 respectively, 0.001g, 0.002g, 0.004g, 0.006g, 0.008g; The addition of Dyhard RU 100 can be done suitable adjustment according to experimental result in the actually operating, to obtain accurate values more.
Measure the inhibiting nitrification rate, to the mapping of Dyhard RU 100 addition, getting the pairing Dyhard RU 100 addition of curve break is K with the inhibiting nitrification rate 2Value, the result that the row of making even is measured is as test result.
Said K 3PH-value determination pH comprises the steps:
The pH value of testing soil is not if the pH value below 5.5, is then added nitrification inhibitor, each constant K nAll get 0;
,, get desire plantation crop plot soil, and carry out pre-treatment at neutrality more than 5.5 and alkaline soil for the pH value according to the soil sampling standard;
Get 12 parts in this soil, every part of 10g adds ammonium chloride 1g, adds Dyhard RU 100 0 respectively, 0.001g, 0.002g, 0.004g, 0.006g, 0.008g;
Measure the inhibiting nitrification rate, the row of making even is measured result's arithmetical av for measuring the result, and to the mapping of Dyhard RU 100 addition, getting the pairing Dyhard RU 100 addition of curve break is K with the inhibiting nitrification rate 3Value.
Said K 4PH-value determination pH comprises the steps:
The pH value of testing soil is not if the pH value below 5.5, is then added nitrification inhibitor, each constant K nAll get 0;
,, get desire plantation crop plot soil, and carry out pre-treatment at neutrality more than 5.5 and alkaline soil for the pH value according to the soil sampling standard;
Get 12 parts in this soil, every part of 10g adds ammonium sulfate 1g, adds Dyhard RU 100 0 respectively, 0.001g, 0.002g, 0.004g, 0.006g, 0.008g;
Measure the inhibiting nitrification rate, the row of making even is measured result's arithmetical av for measuring the result, and to the mapping of Dyhard RU 100 addition, getting the pairing Dyhard RU 100 addition of curve break is K with the inhibiting nitrification rate 4Value.
Only describe with ammonium chloride, ammonium sulfate in the embodiment of the invention, to other ammonium fertilizers, like monoammonium phosphate, bicarbonate of ammonia etc., its corresponding Dyhard RU 100 addition confirms that method can the rest may be inferred, i.e. M by formula D=M U* K 2+ M A* K 3+ M A '* K 4+ M x* K xCalculate the addition of nitrification inhibitor Dyhard RU 100.M xBe the addition of other ammonium nitrogen raw materials (monoammonium phosphate, bicarbonate of ammonia etc.) in the fertilizer per ton, K xBe the constant corresponding to this raw material, K xMensuration the rest may be inferred.In addition, be not to include ammonium chloride, ammonium sulfate simultaneously in the practical application yet, maybe one of them only be arranged, perhaps the both does not have, but is substituted by other ammonium fertilizers.
Embodiment 1: to Guangdong eucalyptus planting site.
Wherein, the fertilizer dedicated to eucalyptus that this piece soil is used, in the nitrogen, ammonium nitrogen content accounts for 70% of total nitrogen, and the ammonium nitrogen raw material uses ammonium chloride, and urea nitrogen content accounts in 30%, one ton of fertilizer, is furnished with 104 kilograms in urea, 477 kilograms of ammonium chlorides.
By the method for the present invention's creation, the addition of urease inhibitor hydroquinone confirms that method is:
Get ten parts in this soil, every part of 10g adds urea 1g, adds quinhydrones 0.0005g respectively, 0.001g, 0.002g, 0.004g, 0.006g; Measure the residual variance rate of urea, and the quinhydrones addition is mapped with the residual variance rate of urea, as shown in Figure 2, get the pairing quinhydrones addition of curve break as the K value.Experimental data is following:
Quinhydrones addition g 0.0005 0.001 0.002 0.004 0.006
The residual variance rate % of urea 13 24 31 32 32
Can measure according to the method for stipulating in the HG4135-2010 stability fertilizer industry standard when wherein, measuring the residual variance rate of urea.
With reference to shown in Figure 2, can know by diagrammatic curve, add the 0.002g quinhydrones in every gram urea, can realize dropping into lower cost, but obtain best urase and suppress effect.
The quinhydrones addition is the 104*0.002=0.208 kilogram in the fertilizer then per ton;
Test this pH in soil, test at 1: 2.5 according to soil ratio, getting the pH value is 5.1, and this soil acidity is stronger, need not add nitrification inhibitor.
The stable fertilizer formula that finally obtains suitable this soil is: 104 kilograms in urea, and 477 kilograms of ammonium chlorides add 0.208 kilogram of quinhydrones, and other nutritive element contents such as phosphorus potassium border situation factually add.
Embodiment 2: to Jiangxi eucalyptus planting site.
Wherein, the fertilizer dedicated to eucalyptus that this ground is used, in the nitrogen, ammonium nitrogen content accounts for 70% of total nitrogen, and the ammonium nitrogen raw material uses ammonium chloride, and urea nitrogen content accounts in 30%, one ton of fertilizer, is furnished with 104 kilograms in urea, 477 kilograms of ammonium chlorides.
By the method for the present invention's creation, the addition of urease inhibitor hydroquinone confirms that method is:
Get ten parts in this soil, every part of 10g adds urea 1g, adds quinhydrones 0.0005g respectively, 0.001g, 0.002g, 0.004g, 0.006g; Measure the residual variance rate of urea, and the quinhydrones addition is mapped with the residual variance rate of urea, as shown in Figure 3, get the pairing quinhydrones addition of curve break as the K value.Experimental data is following:
Quinhydrones addition g 0.0005 0.001 0.002 0.004 0.006
The residual variance rate % of urea 13 24 31 32 32
With reference to shown in Figure 3, can know by diagrammatic curve, add the 0.002g quinhydrones in every gram urea, can realize dropping into lower cost, obtain best urase and suppress effect.
The quinhydrones addition is the 104*0.002=0.208 kilogram in the fertilizer then per ton.
Test this pH in soil, test at 1: 2.5 according to soil ratio, getting the pH value is 6.7, is neutral soil, needs to add nitrification inhibitor, promptly adds Dyhard RU 100.
Get 12 parts in this soil, every part of 10g adds urea 1g, adds Dyhard RU 100 0 respectively, 0.001g, 0.002g, 0.004g, 0.006g, 0.008g; Measure the inhibiting nitrification rate, to the mapping of Dyhard RU 100 addition, as shown in Figure 4, getting the pairing Dyhard RU 100 addition of curve break is K with the inhibiting nitrification rate 2Value.Experimental data is following:
Dyhard RU 100 addition g 0.001 0.002 0.004 0.006 0.008
Inhibiting nitrification rate % 2 3 3 7 8
With reference to shown in Figure 4, can know by diagrammatic curve, add the 0.006g Dyhard RU 100 in every gram urea, can realize dropping into lower cost, obtain best inhibiting nitrification effect.
Get 12 parts in this soil, every part of 10g adds ammonium chloride 1g, adds Dyhard RU 100 0 respectively, 0.001g, 0.002g, 0.004g, 0.006g, 0.008g; Measure the inhibiting nitrification rate, to the mapping of Dyhard RU 100 addition, as shown in Figure 5, getting the pairing Dyhard RU 100 addition of curve break is the K3 value with the inhibiting nitrification rate.Experimental data is following:
Dyhard RU 100 addition g 0.001 0.002 0.004 0.006 0.008
Inhibiting nitrification rate % 2 3 7 7 8
With reference to shown in Figure 5, can know by diagrammatic curve, add the 0.004g Dyhard RU 100 in every gram ammonium chloride, can realize dropping into lower cost, obtain best inhibiting nitrification effect.
According to formula M D=M U* K 2+ M A* K 3+ M A '* K 4,
Then needing the amount of interpolation Dyhard RU 100 altogether is the 104*0.006+477*0.004=2.532 kilogram;
The stable fertilizer formula that then is fit to this piece soil is: 104 kilograms in urea, and 477 kilograms of ammonium chlorides add 0.208 kilogram of quinhydrones, add 2.532 kilograms of Dyhard RU 100s, and other nutritive element contents such as phosphorus potassium border situation factually add.
The present invention creates the nitrogen content according to different shape in the characteristic of different soils and the fertilizer product; Provided the quantity algorithm of using of urease inhibitor hydroquinone and nitrification inhibitor Dyhard RU 100; Improved the specific aim of stable fertilizer formula; Help prolonging the fertilizer efficiency of stable fertilizer more, improved fertilizer utilization ratio.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims (9)

1. the addition means of suppressor factor in the stable fertilizer, its nitrogen content according to different shape in the fertilizer adds, and comprises the steps:
Obtain the content of various nitrogen forms in the fertilizer;
According to various form nitrogen contents in the fertilizer that is obtained, calculate the addition of urease inhibitor hydroquinone;
According to various form nitrogen contents in the fertilizer that is obtained, calculate the addition of nitrification inhibitor Dyhard RU 100.
2. the addition means of suppressor factor in the stable fertilizer as claimed in claim 1 is characterized in that: said according to various nitrogen form content in the fertilizer that is obtained, the step of calculating the addition of urease inhibitor hydroquinone comprises:
According to the proportioning raw materials of fertilizer, by formula M H=M U* K calculates the addition of urease inhibitor hydroquinone; Wherein, M HAddition for quinhydrones in the fertilizer product per ton; M UQuality for urea in the fertilizer product per ton; K is a constant, chooses between 0.0001-0.01 according to the soil practical situation.
3. the addition means of suppressor factor in the stable fertilizer as claimed in claim 2 is characterized in that: said according to various nitrogen form content in the fertilizer that is obtained, the step of calculating the addition of nitrification inhibitor Dyhard RU 100 comprises:
According to the proportioning raw materials of fertilizer, by formula M D=M U* K 2+ M A* K 3+ M A '* K 4Calculate the addition of nitrification inhibitor Dyhard RU 100; Wherein, M DAddition for Dyhard RU 100 in the fertilizer product per ton; M UAddition for urea in the fertilizer per ton; K 2Be constant, between 0.001-0.1, choose according to practical situation; M ABe the addition of ammonium chloride in the fertilizer per ton, K 3Be constant, between 0.0005-0.05, choose according to practical situation; M A 'Be the addition of ammonium sulfate in the fertilizer per ton, K 4Be constant, between 0.0005-0.05, choose according to practical situation.
4. the addition means of suppressor factor in the stable fertilizer as claimed in claim 3 is characterized in that: said K pH-value determination pH comprises the steps:
According to the soil sampling standard, get the soil in desire plantation crop plot, and carry out pre-treatment;
Get 12 parts in this soil, every part of 10g adds urea 1g, adds quinhydrones 0 respectively, 0.0005g, 0.001g, 0.002g, 0.004g, 0.006g;
The arithmetical av that the residual variance rate of mensuration urea, the row of making even are measured the result is the mensuration result, and with the residual variance rate of urea the quinhydrones addition is mapped, and gets the pairing quinhydrones addition of curve break as the K value.
5. the addition means of suppressor factor in the stable fertilizer as claimed in claim 4 is characterized in that: said K 2PH-value determination pH comprises the steps:
The pH value of testing soil is not if the pH value below 5.5, is then added nitrification inhibitor, each constant K nAll get 0;
,, get desire plantation crop plot soil, and carry out pre-treatment at neutrality more than 5.5 and alkaline soil for the pH value according to the soil sampling standard;
Get 12 parts in this soil, every part of 10g adds urea 1g, adds Dyhard RU 100 0 respectively, 0.001g, 0.002g, 0.004g, 0.006g, 0.008g;
Measure the inhibiting nitrification rate, the row of making even is measured result's arithmetical av for measuring the result, and to the mapping of Dyhard RU 100 addition, getting the pairing Dyhard RU 100 addition of curve break is K with the inhibiting nitrification rate 2Value.
6. the addition means of suppressor factor in the stable fertilizer as claimed in claim 4 is characterized in that: said K 3PH-value determination pH comprises the steps:
The pH value of testing soil is not if the pH value below 5.5, is then added nitrification inhibitor, each constant K nAll get 0;
,, get desire plantation crop plot soil, and carry out pre-treatment at neutrality more than 5.5 and alkaline soil for the pH value according to the soil sampling standard;
Get 12 parts in this soil, every part of 10g adds ammonium chloride 1g, adds Dyhard RU 100 0 respectively, 0.001g, 0.002g, 0.004g, 0.006g, 0.008g;
Measure the inhibiting nitrification rate, the row of making even is measured result's arithmetical av for measuring the result, and to the mapping of Dyhard RU 100 addition, getting the pairing Dyhard RU 100 addition of curve break is K with the inhibiting nitrification rate 3Value.
7. the addition means of suppressor factor in the stable fertilizer as claimed in claim 4 is characterized in that: said K 4PH-value determination pH comprises the steps:
The pH value of testing soil is not if the pH value below 5.5, is then added nitrification inhibitor, each constant K nAll get 0;
,, get desire plantation crop plot soil, and carry out pre-treatment at neutrality more than 5.5 and alkaline soil for the pH value according to the soil sampling standard;
Get 12 parts in this soil, every part of 10g adds ammonium sulfate 1g, adds Dyhard RU 100 0 respectively, 0.001g, 0.002g, 0.004g, 0.006g, 0.008g;
Measure the inhibiting nitrification rate, the row of making even is measured result's arithmetical av for measuring the result, and to the mapping of Dyhard RU 100 addition, getting the pairing Dyhard RU 100 addition of curve break is K with the inhibiting nitrification rate 4Value.
8. like the addition means of suppressor factor in any one described stable fertilizer among the claim 4-7, it is characterized in that: the addition of quinhydrones, Dyhard RU 100 can be adjusted according to practical situation, to obtain accurate values more.
9. the addition means of suppressor factor in the stable fertilizer as claimed in claim 8 is characterized in that: the content of various nitrogen form during the content of said various nitrogen forms can be supplied raw materials by fertiliser prodn side and obtaining.
CN2011102794505A 2011-09-20 2011-09-20 Adding method for inhibitor in stable fertilizer Pending CN102432402A (en)

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN104557344A (en) * 2015-02-09 2015-04-29 江西省红壤研究所 Acid-controlling nitrogen-saving fertilizer for red upland soil and fertilization method

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