CN101913967A - Method for reducing emission of N2O of dry farmland soil - Google Patents
Method for reducing emission of N2O of dry farmland soil Download PDFInfo
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- CN101913967A CN101913967A CN201010250584XA CN201010250584A CN101913967A CN 101913967 A CN101913967 A CN 101913967A CN 201010250584X A CN201010250584X A CN 201010250584XA CN 201010250584 A CN201010250584 A CN 201010250584A CN 101913967 A CN101913967 A CN 101913967A
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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 belongs to the technical field of greenhouse gas emission reduction of farmland ecosystems, and in particular relates to a method for reducing emission of N2O of dry farmland soil, which comprises the step of: adding a nitrification inhibitor of dicyandiamide and/or 1,2,4-triazole in a nitrogen manure, wherein the dicyandiamide is 2-12 thousandths of the weight of nitrogen in the manure and the 1,2,4-triazole is 1-8 thousandths of the weight of nitrogen in the manure. By adding the nitrification inhibitor of the dicyandiamide and/or the 1,2,4-triazole, and the like in the nitrogen manure of urea, and the like, the invention achieves the purposes of inhibiting the conversion of the nitrogen by the soil nitrification and greatly reducing the emission of the N2O of the dry farmland soil in China, can ensure that the emission of the N2O of the brunisolic soil in the northeast of China, which is suitable for planting crops of corn, bean, wheat, and the like, is reduced by 34-86 percent through field observation at the crop growth period, and has no remarkable influence on the yield of the crops.
Description
Technical field
The invention belongs to farmland ecosystem reduction of greenhouse gas discharge technical field, specifically is a kind of N of dry farmland soil
2The O discharge-reducing method.
Background technology
The major cause of Global warming is that atmosphere percent of greenhouse gases concentration rises.N
2O comes tertiary important greenhouse gases, and it is CO that its unit molecule heats potentiality
2296 times, the contribution of Global warming is accounted for whole greenhouse gases total contribution 7%, its importance is only second to CO
2And CH
4It also participates in destroying stratospheric ozone and strengthens uv-radiation to the face of land.N in the present atmosphere
2The concentration of O is about 310ppbv, and annual growth is 0.25%, this means present N
2The increase of O concentration will produce long-range influence to Global climate change.
Global warming has been undisputable fact.Current, national governments and scientific and technical personnel will make great efforts to contribute for the reply global warming.Because reasons such as excessive fertilization, utilization rate of fertilizer are low, farmland nitrogen fertilizer application soil produces N by nitrification and denitrification
2O, thus N become
2Therefore the important emission source of O presses for and seeks effective agricultural land soil N
2The O emission-reduction technology.The Northeast is China major grain producing area, and staple crop is dry crops such as corn, soybean, wheat, and the dry farmland area is big, crop yield is high.
Summary of the invention
The object of the present invention is to provide a kind of N of dry farmland soil
2The O discharge-reducing method, reach suppress soil nitrification to the conversion of nitrogen, make N
2The purpose that the O quantity discharged reduces significantly.
Technical scheme of the present invention:
A kind of N of dry farmland soil
2The O discharge-reducing method, add nitrification inhibitor in nitrogen manure: Dyhard RU 100 and/or 1,2, the 4-triazole, the nitrification inhibitor adding proportion: Dyhard RU 100 is the 2-12 ‰ (preferable range is 5-9 ‰) of nitrogen weight in the fertilizer; 1,2, the 4-triazole is the 1-8 ‰ (preferable range is 3-6 ‰) of nitrogen weight in the fertilizer.
The N of described dry farmland soil
2The O discharge-reducing method, the mode of in nitrogen manure, adding nitrification inhibitor for puddle or the nitrogen fertilizer production flow process in online interpolation formation cocrystallization.
The N of described dry farmland soil
2O discharge-reducing method, nitrogen manure are urea, bicarbonate of ammonia, ammonium chloride, ammonium nitrate or primary ammonium phosphate etc., and this season rate of fertilizer application is 60-500KgN/ha.
The N of described dry farmland soil
2The O discharge-reducing method, agricultural land soil N
2The quantity discharged of O is measured by static chamber-gas chromatography.
The N of described dry farmland soil
2O discharge-reducing method, static chamber are provided with base and casing, and volume is 0.02-2.00m
3Insert in the soil bottom of base, and lower box covers in the groove on the base, and water filling in the groove is to stop the gaseous interchange inside and outside the case; The casing top is provided with the gas production mouth; The acquisition time of gaseous sample is that static chamber is sealed in back 1 hour in the case, gathers once in every interval 5-20 minute; N in the gaseous sample
2O concentration is by the gas chromatograph for determination that has electron capture detector.
The N of described dry farmland soil
2The O discharge-reducing method, the acquisition time of gaseous sample is between the morning 8-12 point each time, and applying fertilizer needs every day in back 15 days and gathers gaseous sample, needs every day in 5 days behind the precipitation and gathers gaseous sample, gathers a gaseous sample every 3-5 days other period.
The N of described dry farmland soil
2The O discharge-reducing method is check agricultural land soil N
2The O emission reduction effect need be carried out comparative experimental research, promptly adds nitrification inhibitor and handles and use the field test sub-district that common nitrogenous fertilizer contrast respectively is provided with three above stochastic distribution, each experimental plot area 20M
2More than, an above static chamber is set in each sub-district.
The N of described dry farmland soil
2O discharge-reducing method, dry farmland soil are the Northeast's brunisolic soil etc., and the kind plant is corn, soybean or wheat etc.
Among the present invention, 1,2, the full name of 4-triazole is 1H-1,2, the 4-triazole.
Among the present invention, Dyhard RU 100 and 1,2, the 4-triazole acts on the ammonium mono-oxygenase of autotrophy nitrobacteria as nitrification inhibitor, and its principle comprises: (1) inhibitor is the property substrate as an alternative; (2) directly influence the respiration of nitrobacteria; (3) make the metal active center of enzyme be subjected to chelating.
The invention has the beneficial effects as follows:
1. the present invention proposes and a kind ofly can significantly reduce northeast dry farmland soil N
2The new technology of O discharging, thereby the N of reduction northeast agricultural land soil
2O discharges source strength.
2. the present invention makes nitrogen manure to N
2The nitrification that O transforms is subjected to part and suppresses, thereby also can improve nitrogen utilization efficiency, increases crop yield.
3. the present invention is by adding Dyhard RU 100 and/or 1,2 in nitrogen manures such as urea, and nitrification inhibitors such as 4-triazole make the N of area, the Northeast China brunisolic soil of crops such as maize planting, soybean, wheat
2The O quantity discharged reduces 34-86%, simultaneously to not obviously influence of crop yield.
Description of drawings
Fig. 1 is the synoptic diagram of static chamber of the present invention.
Among the figure, 1 gas production mouth; 2 casings; 3 handles; 4 grooves; 5 bases; 6 soil; 7 crops.
Embodiment
The present invention adds nitrification inhibitor in nitrogen manures such as urea, as Dyhard RU 100 and/or 1,2, and 4-triazole etc.The adding proportion of nitrification inhibitor: Dyhard RU 100 is the 2-12 ‰ of nitrogen element wt in the fertilizer; 1,2, the 4-triazole is the 1-8 ‰ of nitrogen element wt in the fertilizer.Addition manner is puddled or online interpolation in the nitrogen fertilizer production flow process before applying fertilizer, and forms cocrystallization with nitrogen manure.Addition manner forms cocrystallization for puddling or online interpolation in the nitrogen fertilizer production flow process with nitrogen manure.Above-mentioned nitrogen manure can be urea, bicarbonate of ammonia, ammonium chloride, ammonium nitrate, primary ammonium phosphate etc., in the rates of fertilizer application of crops such as corn, soybean, wheat at 60-500KgN/ha.Fertilizing management is divided into Ji Shi and imposes.
After the fertilising, need monitor agricultural land soil N by static chamber-gas chromatography
2The quantity discharged of O.As shown in Figure 1, static chamber is made up of base 5 and casing 2, and volume is 0.02-2.00m
3Base 5 bottoms are inserted in long to be had in the soil 6 of crop 7, and casing 2 bottoms cover in the groove 4 on the base 5, and water filling in the groove is to stop the gaseous interchange inside and outside the case.Casing 2 tops are provided with gas production mouth 1, and casing 2 both sides are provided with handle 3.The acquisition time of gaseous sample is that static chamber is sealed in back 1 hour in the case, gathers once in every interval 5-20 minute.N in the gaseous sample
2O concentration is by the gas chromatograph for determination that has electron capture detector (ECD).Gas flux (drainage rate) is advanced the speed by static chamber sealing back different time gas concentration and is calculated.Usually, the acquisition time of each gaseous sample is between the morning 8-12 point.Applying fertilizer needs every day in back 15 days and gathers gaseous sample, needs every day in 5 days behind the precipitation and gathers gaseous sample.Can gather one time gaseous sample other period in every 3-5 days.Simultaneously, for checking the agricultural land soil N of this technology
2The O emission reduction effect need be carried out comparative experimental research, promptly adds nitrification inhibitor and handles and use the field test sub-district that common nitrogenous fertilizer processing respectively is provided with the stochastic distribution more than three, each experimental plot area 20m
2More than, an above static chamber is set in each sub-district.
Embodiment 1:
This test is carried out in ShenYang, Liaoning Province city Shujiatun District Shi Lihe town, and soil is brunisolic soil, and the kind plant is a corn.In urea fertilizer, add nitrification inhibitor Dyhard RU 100 (account in the urea nitrogen element wt 10 ‰), before fertilising, puddle in urea.Rate of fertilizer application is base manure 120KgN/ha (kilogram nitrogen/hectare), and 30KgN/ha topdresses.Static chamber is of a size of 600 * 300 * 200mm.Add nitrification inhibitor and handle and use the field test sub-district that common nitrogenous fertilizer processing respectively is provided with 4 stochastic distribution, each sub-district 30m
2, place 1 static chamber, be used for monitoring agricultural land soil N
2The quantity discharged of O.The acquisition time of gaseous sample is that static chamber is sealed in back 1 hour in the case, gathers once in every interval 15-20 minute.N in the gaseous sample
2O concentration is by the gas chromatograph for determination that has electron capture detector (ECD).Gas flux (drainage rate) is advanced the speed by static chamber sealing back different time gas concentration and is calculated.Through outgrowth season N
2The day-night observation of O flux observed the interpolation inhibitor respectively and can reduce N in 2006,2007,2008 and 2009
2O discharges 45-67%.Observing the crop yield of handling the comparison photograph increases to some extent, but difference with insignificance.
Embodiment 2:
This test is carried out in ShenYang, Liaoning Province city Shujiatun District Shi Lihe town, and soil is brunisolic soil, and the kind plant is a corn.In urea fertilizer, add nitrification inhibitor Dyhard RU 100 (account in the urea nitrogen element wt 7 ‰) and 1,2,4-triazole (account in the urea nitrogen element wt 3 ‰).Before fertilising, puddle in urea.Rate of fertilizer application is base manure 120KgN/ha, and 30KgN/ha topdresses.Static chamber is of a size of 600 * 300 * 200mm.Add nitrification inhibitor and handle and use the field test sub-district that common nitrogenous fertilizer processing respectively is provided with 4 stochastic distribution, each sub-district 30m
2, place 1 static chamber, be used for monitoring agricultural land soil N
2The quantity discharged of O.The acquisition time of gaseous sample is that static chamber is sealed in back 1 hour in the case, and gathered once in 20 minutes at every interval.N in the gaseous sample
2O concentration is by the gas chromatograph for determination that has electron capture detector (ECD).Gas flux (drainage rate) is advanced the speed by static chamber sealing back different time gas concentration and is calculated.Through outgrowth season N
2The day-night observation of O flux observed the interpolation inhibitor respectively and can reduce N in 2006,2007,2008 and 2009
2O discharges 53-86%.Do not observe the marked difference of handling with contrast interrow crop output.
In the present embodiment, Dyhard RU 100 and 1,2, the synergistic effect of 4-triazole is more remarkable, and its reason is 1,2, and the 4-triazole can make the nitrogen transformation cycle stretch-out more.
Embodiment 3:
This test is carried out in ShenYang, Liaoning Province city Shujiatun District Shi Lihe town, and soil is brunisolic soil, and the kind plant is a soybean.In urea fertilizer, add nitrification inhibitor Dyhard RU 100 (account in the urea nitrogen element wt 10 ‰).Before fertilising, puddle in urea.Rate of fertilizer application is base manure 60KgN/ha.Static chamber is of a size of 600 * 300 * 200mm.Add nitrification inhibitor and handle and use the field test sub-district that common nitrogenous fertilizer processing respectively is provided with 4 stochastic distribution, each sub-district 30m
2, place 1 static chamber, be used for monitoring agricultural land soil N
2The quantity discharged of O.The acquisition time of gaseous sample is that static chamber is sealed in back 1 hour in the case, and gathered once in 20 minutes at every interval.N in the gaseous sample
2O concentration is by the gas chromatograph for determination that has electron capture detector (ECD).Gas flux (drainage rate) is advanced the speed by static chamber sealing back different time gas concentration and is calculated.Through outgrowth season N
2The day-night observation of O flux observed the interpolation inhibitor respectively and can reduce N in 2006,2007 and 2008
2O discharges 34-69%.Do not observe the marked difference of handling with contrast interrow crop output.
Embodiment 4:
This test is carried out in Qu Jiadian township, Changtu County, Tieling, Liaoning Province, and soil is brunisolic soil, and the kind plant is a corn.In urea fertilizer, add nitrification inhibitor Dyhard RU 100 (account in the urea nitrogen element wt 9 ‰).Before fertilising, puddle in urea.Rate of fertilizer application is base manure 120KgN/ha, and 30KgN/ha topdresses.Static chamber is of a size of 500 * 500 * 500mm.Add nitrification inhibitor and handle and use the field test sub-district that common nitrogenous fertilizer processing respectively is provided with 4 stochastic distribution, each sub-district area is 10 mu, places 1 static chamber, is used for monitoring agricultural land soil N
2The quantity discharged of O.The acquisition time of gaseous sample is that static chamber is sealed in back 1 hour in the case, and gathered once in 15 minutes at every interval.N in the gaseous sample
2O concentration is by the gas chromatograph for determination that has electron capture detector (ECD).Gas flux (drainage rate) is advanced the speed by static chamber sealing back different time gas concentration and is calculated.Through outgrowth season N
2The day-night observation of O flux observed the interpolation inhibitor and can reduce N in 2009
2O discharging 66%.Observe the crop yield of handling the comparison photograph and increase by 6.3% to some extent, significant difference.
Claims (8)
1. the N of a dry farmland soil
2The O discharge-reducing method is characterized in that: add nitrification inhibitor in nitrogen manure: Dyhard RU 100 and/or 1,2, and the 4-triazole, the nitrification inhibitor adding proportion: Dyhard RU 100 is the 2-12 ‰ of nitrogen weight in the fertilizer; 1,2, the 4-triazole is the 1-8 ‰ of nitrogen weight in the fertilizer.
2. press the N of the described dry farmland soil of claim 1
2The O discharge-reducing method is characterized in that: the mode of in nitrogen manure, adding nitrification inhibitor for puddle or the nitrogen fertilizer production flow process in online interpolation formation cocrystallization.
3. press the N of the described dry farmland soil of claim 1
2The O discharge-reducing method is characterized in that: nitrogen manure is urea, bicarbonate of ammonia, ammonium chloride, ammonium nitrate or primary ammonium phosphate, and this season rate of fertilizer application is at 60-500KgN/ha.
4. press the N of the described dry farmland soil of claim 1
2The O discharge-reducing method is characterized in that: agricultural land soil N
2The quantity discharged of O is measured by static chamber-gas chromatography.
5. press the N of the described dry farmland soil of claim 4
2The O discharge-reducing method is characterized in that: static chamber is provided with base and casing, and volume is 0.02-2.00m
3Insert in the soil bottom of base, and lower box covers in the groove on the base, water filling in the groove, and to stop the gaseous interchange inside and outside the case, the casing top is provided with the gas production mouth; The acquisition time of gaseous sample is that static chamber is sealed in back 1 hour in the case, gathers once in every interval 5-20 minute; N in the gaseous sample
2O concentration is by the gas chromatograph for determination that has electron capture detector.
6. press the N of the described dry farmland soil of claim 5
2The O discharge-reducing method, it is characterized in that: the acquisition time of gaseous sample is between the morning 8-12 point each time, applying fertilizer needs every day in back 15 days and gathers gaseous sample, needs every day in 5 days behind the precipitation and gathers gaseous sample, gathers a gaseous sample every 3-5 days other period.
7. press the N of the described dry farmland soil of claim 5
2The O discharge-reducing method is characterized in that: be check agricultural land soil N
2The O emission reduction effect need be carried out comparative study, promptly adds nitrification inhibitor and handles and use the field test sub-district that common nitrogenous fertilizer contrast respectively is provided with three above stochastic distribution, each experimental plot area 20M
2More than, an above static chamber is set in each sub-district.
8. press the N of the described dry farmland soil of claim 1
2The O discharge-reducing method is characterized in that: dry farmland soil is the Northeast's brunisolic soil etc., and the kind plant is corn, soybean or wheat etc.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331484A (en) * | 2011-06-21 | 2012-01-25 | 中国科学院南京土壤研究所 | Method for measuring discharged quantities of greenhouse gases of flowing water body |
| CN102422736A (en) * | 2011-09-15 | 2012-04-25 | 中国科学院南京土壤研究所 | Method for improving acid soil by applying ammonium nitrogen fertilizer and nitrification inhibitor in matched manner and application of method |
| CN102754549A (en) * | 2012-07-11 | 2012-10-31 | 中国科学院沈阳应用生态研究所 | N2O emission reduction method of northern dryland farmland soil |
| CN102919026A (en) * | 2012-11-12 | 2013-02-13 | 中国科学院亚热带农业生态研究所 | Tea garden greenhouse gas nitrous oxide emission reduction method |
| CN103004543A (en) * | 2012-12-30 | 2013-04-03 | 南京信息工程大学 | Method for reducing emission of farmland greenhouse gas and application thereof |
| CN103688727A (en) * | 2013-12-18 | 2014-04-02 | 南京信息工程大学 | Farmland greenhouse gas reduction method and applications thereof |
| CN103718811A (en) * | 2013-12-31 | 2014-04-16 | 南京信息工程大学 | Method for reducing farmland greenhouse gas emission through scallions and application |
| CN105272578A (en) * | 2015-10-13 | 2016-01-27 | 广东省农业科学院农业资源与环境研究所 | Stable fertilizer inhibiting greenhouse gas release and preparation technology of stable fertilizer |
| CN109608292A (en) * | 2018-12-27 | 2019-04-12 | 中国科学院生态环境研究中心 | A kind of nitrogen fertilizer composition and application thereof |
| CN111936221A (en) * | 2018-04-06 | 2020-11-13 | 雅苒国际集团 | Removal of NOx from gaseous exhaust |
| CN113563138A (en) * | 2021-07-23 | 2021-10-29 | 浙江省农业科学院 | Method for reducing soil nitrogen emission and nitrogen emission inhibitor used by same |
| CN116621646A (en) * | 2023-05-10 | 2023-08-22 | 中国科学院沈阳应用生态研究所 | Cyclopentanone as an inhibitor for N reduction in soil 2 Application of O emission |
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| CN102331484A (en) * | 2011-06-21 | 2012-01-25 | 中国科学院南京土壤研究所 | Method for measuring discharged quantities of greenhouse gases of flowing water body |
| CN102422736A (en) * | 2011-09-15 | 2012-04-25 | 中国科学院南京土壤研究所 | Method for improving acid soil by applying ammonium nitrogen fertilizer and nitrification inhibitor in matched manner and application of method |
| CN102422736B (en) * | 2011-09-15 | 2014-03-26 | 中国科学院南京土壤研究所 | Method for improving acid soil by applying ammonium nitrogen fertilizer and nitrification inhibitor in matched manner and application of method |
| CN102754549A (en) * | 2012-07-11 | 2012-10-31 | 中国科学院沈阳应用生态研究所 | N2O emission reduction method of northern dryland farmland soil |
| CN102754549B (en) * | 2012-07-11 | 2014-01-08 | 中国科学院沈阳应用生态研究所 | N2O emission reduction method of northern dryland farmland soil |
| CN102919026A (en) * | 2012-11-12 | 2013-02-13 | 中国科学院亚热带农业生态研究所 | Tea garden greenhouse gas nitrous oxide emission reduction method |
| CN103004543A (en) * | 2012-12-30 | 2013-04-03 | 南京信息工程大学 | Method for reducing emission of farmland greenhouse gas and application thereof |
| CN103688727B (en) * | 2013-12-18 | 2015-07-29 | 南京信息工程大学 | Farmland greenhouse gas discharge-reducing method and application thereof |
| CN103688727A (en) * | 2013-12-18 | 2014-04-02 | 南京信息工程大学 | Farmland greenhouse gas reduction method and applications thereof |
| CN103718811A (en) * | 2013-12-31 | 2014-04-16 | 南京信息工程大学 | Method for reducing farmland greenhouse gas emission through scallions and application |
| CN103718811B (en) * | 2013-12-31 | 2015-09-02 | 南京信息工程大学 | A kind of shallot reduces farmland greenhouse gas discharge method and application |
| CN105272578A (en) * | 2015-10-13 | 2016-01-27 | 广东省农业科学院农业资源与环境研究所 | Stable fertilizer inhibiting greenhouse gas release and preparation technology of stable fertilizer |
| CN105272578B (en) * | 2015-10-13 | 2018-07-10 | 广东省农业科学院农业资源与环境研究所 | A kind of stabile fertilizer and its preparation process for inhibiting greenhouse gases release |
| CN111936221A (en) * | 2018-04-06 | 2020-11-13 | 雅苒国际集团 | Removal of NOx from gaseous exhaust |
| CN109608292A (en) * | 2018-12-27 | 2019-04-12 | 中国科学院生态环境研究中心 | A kind of nitrogen fertilizer composition and application thereof |
| CN113563138A (en) * | 2021-07-23 | 2021-10-29 | 浙江省农业科学院 | Method for reducing soil nitrogen emission and nitrogen emission inhibitor used by same |
| CN116621646A (en) * | 2023-05-10 | 2023-08-22 | 中国科学院沈阳应用生态研究所 | Cyclopentanone as an inhibitor for N reduction in soil 2 Application of O emission |
| CN116621646B (en) * | 2023-05-10 | 2024-02-06 | 中国科学院沈阳应用生态研究所 | Cyclopentanone as an inhibitor for N reduction in soil 2 Application of O emission |
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