CN104030782B - The application of Dyhard RU 100 in Cd-polluted farmland - Google Patents
The application of Dyhard RU 100 in Cd-polluted farmland Download PDFInfo
- Publication number
- CN104030782B CN104030782B CN201410198948.2A CN201410198948A CN104030782B CN 104030782 B CN104030782 B CN 104030782B CN 201410198948 A CN201410198948 A CN 201410198948A CN 104030782 B CN104030782 B CN 104030782B
- Authority
- CN
- China
- Prior art keywords
- fertilizer
- dyhard
- cadmium
- polluted farmland
- crop
- 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
Landscapes
- Fertilizers (AREA)
Abstract
The invention discloses the application of a kind of Dyhard RU 100 in Cd-polluted farmland: for promoting crop yield and reducing the cadmium content in crop.Be specially: add the Dyhard RU 100 Homogeneous phase mixing accounting for N (nitrogen) weight 12.5 ~ 30% in nitrogenous fertilizer after, as the fertilizer of Cd-polluted farmland; Described nitrogenous fertilizer is ammonium fertilizer, ammonium nitrate fertilizer or urea.
Description
Technical field
The present invention relates to nitrification inhibitor (dicyan diamino, also known as Dyhard RU 100, molecular formula C
2h
4n
4, english abbreviation DCD) and novelty teabag in Cd-polluted farmland production, Dyhard RU 100 effectively can slow down the murder by poisoning of Cadmium in Soil to crop, improves vegetable crop, and reduces the content making cadmium in object, and resistance control cadmium enters food chain.
Background technology
Be from the twenties in last century, electrolytic zinc industrial expansion has impelled the significantly increase of cadmium (Cd) output.The problem of environmental pollution produced by cadmium also occurs thereupon.Soil, as open buffering dynamics system, carries out in the exchange process of matter and energy at the environment with surrounding, inevitably has external source Cd and enter.The suburbs, China most cities soil all receives pollution to a certain degree, causes the plant growths such as the grain in many places, fruits and vegetables to be deteriorated, Cd content severe overweight.Very easily there is biological transfer and biological accumulation in cadmium, thus work the mischief to HUMAN HEALTH in " soil-crop-human body " food chain.Moreover, cadmium pollution also have impact on agricultural-food competitive power in the international market.In recent years, the main cities of Vegetables Exportation has been developed in China urban, but due to the deterioration of environment, and increasing and raising that people require vegetables green production of Foreign Green barrier, makes the sustainable development of China's vegetables industry be faced with huge challenge.Therefore, technology or the method for developing minimizing crop Cd accumulation have important social effect and economic worth.
Nitrification inhibitor, also known as nitrogen fertilizer potentiating agent, except most widely used Dyhard RU 100, also just like 3,4-dimethyl pyrazole phosphoric acid salt, the chloro-6-of 2-(trichloromethyl) pyridine, 4-amino-1,2,3-triazole hydrochloride, amidinothiourea etc.They are because of poisonous to nitrobacteria, can suppress nitrated to ammonium nitrogen of Nitrite bacteria in soil, thus reduce the conversion of ammonium nitrogen to nitric nitrogen in soil.Easily run off because nitrified nitrogen in soil is fertile, thus the use of nitrification inhibitor in agricultural can be considered to " reducing the loss of nitrogenous fertilizer ".
In current agricultural production process, using of nitrogenous fertilizer is inevitable.But even if use a large amount of nitrogenous fertilizer on cadmium pollution soil, the output of crop is still very low, and crop cadmium content is also higher.
Summary of the invention
The technical problem to be solved in the present invention is to provide the novelty teabag of a kind of Dyhard RU 100 (DCD), that is, provide Dyhard RU 100 (DCD) application in Cd-polluted farmland: for promoting crop yield and reducing the cadmium content in crop.
In order to solve the problems of the technologies described above, the invention provides Dyhard RU 100 (DCD) application in Cd-polluted farmland: for promoting crop yield and reducing the cadmium content in crop.
Improvement as Dyhard RU 100 of the present invention (DCD) application in Cd-polluted farmland: add the Dyhard RU 100 Homogeneous phase mixing accounting for N (nitrogen) weight 12.5 ~ 30% (being such as preferably 15%) in nitrogenous fertilizer after, as the fertilizer of Cd-polluted farmland.
Remarks illustrate: nitrogen fertilizer amount is conventional amount used; Therefore, large Tanaka, the consumption of per hectare nitrogenous fertilizer is the nitrogenous fertilizer containing 120 ~ 240kgN (nitrogen); In potted plant experiment, every kg soil adapted contains the nitrogenous fertilizer of 200-400mgN (nitrogen).
Further improvement as Dyhard RU 100 of the present invention (DCD) application in Cd-polluted farmland: nitrogenous fertilizer is ammonium fertilizer, ammonium nitrate fertilizer or urea.
Remarks illustrate: the second grade soil cadmium content scope of China's standard of soil environment quality is 0.3-0.5mg/kg; The seriously polluted district of some Cd can reach Cd content 5-80mg/kg, but these zone of pollution are not suitable for long-term cropping.
In the present invention, crop mainly refers to various vegetable crop, as Plantula Brassicae chinensis, romaine lettuce, spinach etc.
In Cd-polluted farmland vegetable growing process, during applied nitrogen, compounding application nitrification inhibitor (Dyhard RU 100, DCD) significantly can slow down the harm of cadmium poison, and reduces the cadmium content done in object.The vegetable crop of Cd-polluted farmland (as Plantula Brassicae chinensis, romaine lettuce, spinach) output can be made significantly to increase 50-700%, and cadmium content obviously falls 30-70%.
The present invention has following beneficial effect:
1), when nitrogenous fertilizer used is ammonium state instant nitrogenousfertilizer, compounding application Dyhard RU 100, the output of the vegetable crop of Cd-polluted farmland can be made to increase 500-700%, and cadmium content reduces 40-70%;
2), when nitrogenous fertilizer used is ammonium nitrate fertilizer, compounding application Dyhard RU 100, the output of the vegetable crop of Cd-polluted farmland can be made to increase 50-150%, and cadmium content reduces 30-60%;
3), when nitrogenous fertilizer used is urea, compounding application Dyhard RU 100, the output of the vegetable crop of Cd-polluted farmland can be made to increase 150-300%, and cadmium content reduces 30-60%.
In sum, contriver finds after deliberation in nitrogenous fertilizer use procedure, coordinate Dyhard RU 100 can reduce the absorption of crop to cadmium, the oxidative stress ability of raising crop Cadmium resistance poison generation, thus there is alleviation Cadmium Pollution in Soils to the murder by poisoning of crop, improve the output of Cd-polluted farmland vegetable crop, and Cadmium accumulation in object is made in minimizing.The discovery of this novelty teabag, the N-fertilizer management be expected to for Cd-polluted farmland from now on provides new technical director.
Embodiment
Embodiment 1,
In the soil containing cadmium 5mg/kg, be mixed into nitrogen base manure 400mgN/kg (such as ammonium fertilizer, ammonium nitrate fertilizer, urea), be mixed into the Dyhard RU 100 (DCD) of 60mg/kg simultaneously, carry out in a conventional manner apply fertilizer (that is, fertilizer and soil fully being mixed); Water to the 60-70% of field capacity, transplant the Plantula Brassicae chinensis seedling of 3-4 sheet true leaf in basin, every 3d moisturizing once (that is, moisturizing is to the 60-70% of field capacity).In spacious canopy greenhouse, plant 2 months (temperature is 0-15 DEG C can plant 2 months, and temperature is 15-30 DEG C and then only cultivates 1 month) gather in the crops afterwards, measure fresh weight, and analyze the cadmium content (aas determination) in Plantula Brassicae chinensis body.The result of overground part fresh weight, blade cadmium content (by dry weight basis, lower same) is as shown in the table:
Ammonium fertilizer used by table 1
| Ammonium fertilizer | Cd | Cd+DCD | Increase per-cent |
| Fresh weight g | 0.50 | 3.5 | 600％ |
| Cadmium content mg/kg | 130 | 50 | -62％ |
Table note:
1, Cd: refer to that the soil (5mg/kg) of cadmium pollution only uses the process of ammonium fertilizer (400mgN/kg);
2, Cd+DCD: refer to that the soil (5mg/kg) of cadmium pollution uses the process of ammonium fertilizer (400mgN/k) and Dyhard RU 100 (60mg/kg).
Table 2, use ammonium nitrate (3:1) composite nitrogen fertilizer
| Ammonium nitrate (3:1) composite fertilizer | Cd | Cd+DCD | Increase per-cent |
| Fresh weight g | 1.10 | 2.45 | 123％ |
| Cadmium content mg/kg | 160 | 80 | -50％ |
Table 3, use ammonium nitrate (1:1) composite nitrogen fertilizer
| Ammonium nitrate (1:1) composite fertilizer | Cd | Cd+DCD | Increase per-cent |
| Fresh weight g | 2.85 | 3.97 | 40％ |
| Cadmium content mg/kg | 50 | 32 | -36％ |
Table 4, use urea nitrogenous fertilizer
| Urea | Cd | Cd+DCD | Increase per-cent |
| Fresh weight g | 0.76 | 2.32 | 205％ |
| Cadmium content mg/kg | 75 | 36 | -52％ |
Embodiment 2,
" soil containing cadmium 5mg/kg " in embodiment 1 made into " soil containing cadmium 10mg/kg ", all the other are with embodiment 1.Acquired results is as shown in the table:
Table 5, use ammonium fertilizer
| Ammonium fertilizer | Cd | Cd+DCD | Increase per-cent |
| Fresh weight g | 0.19 | 1.17 | 515％ |
| Cadmium content mg/kg | 213 | 68 | -68％ |
Table 6, use ammonium nitrate (3:1) composite nitrogen fertilizer
| Ammonium nitrate (3:1) composite fertilizer | Cd | Cd+DCD | Increase per-cent |
| Fresh weight g | 0.49 | 1.21 | 147％ |
| Cadmium content mg/kg | 227 | 106 | -53％ |
Table 7, use ammonium nitrate (1:1) composite nitrogen fertilizer
| Ammonium nitrate (1:1) composite fertilizer | Cd | Cd+DCD | Increase per-cent |
| Fresh weight g | 0.99 | 1.59 | 61％ |
| Cadmium content mg/kg | 75 | 43 | -43％ |
Table 8, use urea nitrogenous fertilizer
| Urea | Cd | Cd+DCD | Increase per-cent |
| Fresh weight g | 0.29 | 1.12 | 286％ |
| Cadmium content mg/kg | 89 | 54 | -39％ |
Comparative example 1, " Dyhard RU 100 (DCD) " of the present invention is made into calcium cyanamide (also known as lime nitrogen, molecular formula CaCN
2); Consumption is constant; All the other contents are equal to embodiment 1; Final acquired results is as shown in the table:
Ammonium fertilizer used by table 9
| Ammonium fertilizer | Cd | Cd+CaCN 2 | Increase per-cent |
| Fresh weight g | 0.50 | 0.51 | 2％ |
| Cadmium content mg/kg | 130 | 120 | -8％ |
Table 10, use ammonium nitrate (3:1) composite nitrogen fertilizer
| Ammonium nitrate (3:1) composite fertilizer | Cd | Cd+CaCN 2 | Increase per-cent |
| Fresh weight g | 1.10 | 1.12 | 2％ |
| Cadmium content mg/kg | 160 | 151 | -6％ |
Table 11, use ammonium nitrate (1:1) composite nitrogen fertilizer
| Ammonium nitrate (1:1) composite fertilizer | Cd | Cd+CaCN 2 | Increase per-cent |
| Fresh weight g | 2.85 | 2.78 | -2％ |
| Cadmium content mg/kg | 50 | 48 | -4％ |
Table 12, use urea nitrogenous fertilizer
| Urea | Cd | Cd+CaCN 2 | Increase per-cent |
| Fresh weight g | 0.76 | 0.80 | 5％ |
| Cadmium content mg/kg | 75 | 70 | -1％ |
Finally, it is also to be noted that what enumerate above is only several specific embodiments of the present invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be had.All distortion that those of ordinary skill in the art can directly derive from content disclosed by the invention or associate, all should think protection scope of the present invention.
Claims (1)
1. the application of Dyhard RU 100 in Cd-polluted farmland, is characterized in that: for promoting crop yield and reducing the cadmium content in crop;
Add the Dyhard RU 100 Homogeneous phase mixing accounting for N (nitrogen) weight 12.5 ~ 30% in nitrogenous fertilizer after, as the fertilizer of Cd-polluted farmland; Described nitrogenous fertilizer is ammonium fertilizer, ammonium nitrate fertilizer or urea.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410198948.2A CN104030782B (en) | 2014-05-12 | 2014-05-12 | The application of Dyhard RU 100 in Cd-polluted farmland |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410198948.2A CN104030782B (en) | 2014-05-12 | 2014-05-12 | The application of Dyhard RU 100 in Cd-polluted farmland |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104030782A CN104030782A (en) | 2014-09-10 |
| CN104030782B true CN104030782B (en) | 2016-04-06 |
Family
ID=51461812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410198948.2A Expired - Fee Related CN104030782B (en) | 2014-05-12 | 2014-05-12 | The application of Dyhard RU 100 in Cd-polluted farmland |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104030782B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109095984A (en) * | 2018-08-06 | 2018-12-28 | 许海彪 | For administering the soil-repairing agent and preparation method and application of combined contamination soil |
| CN114375663A (en) * | 2021-12-27 | 2022-04-22 | 中国科学院南京土壤研究所 | Nitrogen fertilizer application method for planting vegetables in cadmium-copper combined polluted soil |
-
2014
- 2014-05-12 CN CN201410198948.2A patent/CN104030782B/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| 不同改良剂在镉与硝酸盐复合污染下对辣椒品质的影响;李素霞等;《西南农业学报》;20111231;第24卷(第4期);1480-1483 * |
| 双氰胺对氮肥增产效益的影响;柳金来等;《吉林农业科学》;20031231;第28卷(第4期);36-39 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104030782A (en) | 2014-09-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2018101437A4 (en) | Special film-coated controlled release calcium fertilizer for peanut and preparation process thereof | |
| CN103708920B (en) | Foliar nutrient | |
| CN101786931A (en) | Green bioactive organic fertilizer | |
| WO2015184658A1 (en) | Facility secondary no3 - salinized soil improver, preparation method, and improving method | |
| CN103396805B (en) | Soil conditioner and using method thereof are hindered in a kind of continuous cropping | |
| CN101591208A (en) | A kind of preparation method of organic sustained release fertilizer synergist | |
| CN104829358A (en) | Fertilizer for paddy rice planting | |
| CN102249816A (en) | Special type organic and inorganic fertilizer for wheat | |
| CN105198660B (en) | A kind of humic acid water soluble organic fertilizer and its application in promoting plant yield-increasing, improving soil | |
| CN105085072A (en) | Vegetable matrix nutrient soil and manufacturing method of vegetable matrix nutrient soil | |
| CN104788170B (en) | Alkalescent slow-release compound fertilizer, silicon substrate alkalescent sustained release composite microbe fertilizer and preparation method thereof | |
| CN103435379B (en) | A kind of fertilizer reducing strawberry heavy metal contamination makes and application process | |
| CN104030782B (en) | The application of Dyhard RU 100 in Cd-polluted farmland | |
| CN102491828A (en) | Organic fertilizer formula for significantly improving fertilizer utilization rate | |
| CN104692875B (en) | A kind of leaf vegetables nutrient solution and preparation method thereof | |
| CN104030795A (en) | Water-soluble nitrogen-potassium dual-component fertilizer | |
| CN104058831A (en) | Special biological organic compound fertilizer for crop base fertilizer and preparation method of compound fertilizer | |
| CN103553831A (en) | Agricultural efficient biological organic fertilizer | |
| CN105037009A (en) | Melon and fruit matrix nutrient soil and preparing method thereof | |
| CN102674998A (en) | Nitrogen fertilizer organic nutrition activating element | |
| CN109748756A (en) | A method of organic fertilizer is produced using vinasse | |
| CN104086319A (en) | Fertilizer for reducing heavy metal pollution of strawberry as well as preparation method and application method thereof | |
| CN114478127B (en) | Humic acid fertilizer for relieving continuous cropping obstacle of allium vegetables | |
| CN107382561A (en) | A kind of preparation method of high calcium moderate-element water-soluble fertilizer | |
| CN103518448A (en) | Vegetable ecological and balanced fertilizer application method |
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: 20160406 Termination date: 20170512 |