CN106233857A - A kind of rice field pollution of area source reduces discharging and increasing production of rice method - Google Patents
A kind of rice field pollution of area source reduces discharging and increasing production of rice method Download PDFInfo
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- CN106233857A CN106233857A CN201610606960.1A CN201610606960A CN106233857A CN 106233857 A CN106233857 A CN 106233857A CN 201610606960 A CN201610606960 A CN 201610606960A CN 106233857 A CN106233857 A CN 106233857A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/20—Cereals
- A01G22/22—Rice
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental Sciences (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Botany (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Fertilizers (AREA)
- Cultivation Of Plants (AREA)
Abstract
The invention discloses a kind of rice field pollution of area source to reduce discharging and increasing production of rice method, belong to charcoal agricultural application, the program includes three steps: use charcoal in soil surface, formation charcoal cover layer；Charcoal cover layer is carried out shallow-layer turn over；Then soil is irrigated in good time, form geobiont charcoal cushion.The method increase the charcoal absorbability to rice field Soil surface water nitrogen, form green, the rice field Soil surface water nitrogen discharge-reducing method of environmental protection.The method, by changing charcoal method of application, can put into not increasing additional material, improves the ability of charcoal absorption rice field Soil surface water nitrogen, reduce the pollution of area source risk that rice field Soil surface water causes under conditions of not applying extra power.
Description
Technical field
The present invention relates to a kind of rice field pollution of area source reduce discharging and increasing production of rice method, specifically, be a kind of raw in reality
Improving the nitrogen absorbability of charcoal on product, increase rice yield simultaneously, the high-performance bio charcoal taking into account environmental protection and agricultural is used
Method.
Background technology
Rice field Soil surface water
In recent years owing to fertilising is excessive, Fertilization Structure is unreasonable so that a large amount of input of nitrogen elements river, river, lakes, cause day
The widespread pollution from the overuse of fertilizers and pesticides in rural area problem that benefit is serious, causes water quality deterioration, exacerbates body eutrophication.In lake nitrogen source have 50% with
On come from widespread pollution from the overuse of fertilizers and pesticides in rural area, such as TAI HU AREA, agricultural area source discharge nitrogen quantity accounts for 77% into lake total nitrogen.Reduce field, rice field
Nitrogen content in face is significant to reducing widespread pollution from the overuse of fertilizers and pesticides in rural area.Owing to rice field Soil surface water has big, the distribution dispersion of total amount etc.
Feature, constitutes potential threat to Ecological Environment and common people's health.The rice field Soil surface water that the present invention is directed to, compares point source dirty
The polluter such as dye, untreated sanitary sewage, its nitrogen content is relatively low, but due to widely distributed, generation amount height, to water body environment
Negatively affect also highly significant.The economy using through engineering approaches measure process rice field Soil surface water is the highest, therefore, it is necessary to for rice
Field Soil surface water arranges cleaning system low cost, eco-friendly, to reduce its nitrogen content, makes rice field Soil surface water reach or close
Surface water discharge standard, it is achieved good Benefits in economic and social terms.
Charcoal technology
Charcoal (Biochar) is under temperature conditions under anoxia condition wholly or in part and relatively low (< 700
DEG C), a kind of phosphorus content produced through pyrolysis charring is abundant, the organic substance of stable in properties.Charcoal surface has substantial amounts of hole
Hole, pore size differs.This pore space structure is conducive to the growth of soil microorganism.Charcoal unit weight is little, water, gas absorbability
By force, and there is the characteristic of substantial amounts of surface negative charge and high charge density, electromagnetic field can be formed, constitute charcoal good
Characterization of adsorption, can adsorb the inorganic ions in water, soil or deposit and polarity or nonpolar organic compound, particularly be beneficial to
Adsorb soil and Heavy Metals in Waters polluter and organic pollution.In chemical composition, charcoal also includes the ore deposit such as calcium, magnesium
Material and inorganic carbonate, have aromatization, biochemistry antidecomposition and the heat stability of physics of height, promotes plant
Absorption to nutrient.Additionally, charcoal often presents certain alkalescence, can be used for improveing acid ground.In view of above-mentioned
A series of good characteristic, charcoal be widely used in recent years the aspect such as carbon fixation and emission reduction, soil remediation improvement research and
Practice.
Charcoal method of application
The charcoal method of application predominantly top application having been reported is executed with mixed, not yet reports other methods of application.Top application is held
Easily cause charcoal to lose with aqueous vapor transportation, and mixed executing causes charcoal utilization ratio low, is unfavorable for that produce are made in raising
Amount.The present invention stresses to propose a kind of novel charcoal application program from the angle of method of application, with enhanced biological charcoal and face, field
The contact of water, improves the utilization ratio of charcoal.Meanwhile, this programme can increase rice yield to a certain extent, it is achieved that warp
Ji benefit and the unification of environmental benefit.
Summary of the invention
In order to improve the charcoal absorbability to nitrogen element in actual production further, the present invention provides a kind of rice
Field pollution of area source reduces discharging and increasing production of rice method, gives full play to the charcoal absorbability to nitrogen element, forms soil-charcoal
Cushion, it is achieved the nitrogen in the Soil surface water of rice field is carried out more efficient absorption, purification, improves nitrogen utilization efficiency simultaneously.Logical
Cross the charcoal application program reducing rice field Soil surface water nitrogen concentration of this research, it is possible to achieve reduce pollution of area source, improve Oryza sativa L.
The targets such as yield, have the feature such as low cost, extra less investment.
In order to realize foregoing invention purpose, the technical solution used in the present invention is:
A kind of rice field pollution of area source reduces discharging and increasing production of rice method, it is characterised in that comprise the steps:
First step: use charcoal and form charcoal cover layer in soil surface；
Second step: charcoal cover layer is carried out shallow-layer and turns over, preliminarily forms soil-charcoal cushion；Turn over
Time the control disturbance degree of depth be 1-10cm；
3rd step: irrigate the soil-charcoal cushion preliminarily formed, make soil and charcoal sufficiently glue
Close, form stable upper soll layer, the most stable soil-charcoal cushion.
Described charcoal is prepared from by one or more crop residueses following: wheat stalk, corn straw, Oryza sativa L. straw
Stalk, soybean stalk, cotton stalk, Semen Sesami straw, rape stalk.Preferably, described charcoal uses wheat stalk system
Standby charcoal, preparation temperature is 700 DEG C.
The specific surface area of described charcoal is not less than 50m2/g.As preferably, the specific surface area of described charcoal is
80m2/g。
In a first step, when charcoal pH is not higher than 8.0, directly use charcoal in soil surface；Work as biology
When charcoal pH is higher than 8.0, joins when using charcoal and execute wood vinegar；Join the wood vinegar pH executed between 3-5, effective ingredient (institute
The effective ingredient stated refers to all organic substances in wood vinegar) weight/mass percentage composition between 3%-10%；Join the wood executed
The usage amount of vinegar liquid is between 50L-200L/ha.Preferably, described charcoal application is joined and is executed wood vinegar (pH
=5.0), joining the wood vinegar usage amount executed is 100L/ha.
In the 3rd step, described stable soil-charcoal cushion, its charcoal mass ratio is 0.1-10%
w/w.Preferably, the amount of application of described charcoal is 0.5%w/w.This mass ratio refer to charcoal account for stable soil-
The mass percent of charcoal cushion.
In a first step, described charcoal cover layer, its thickness is 1-5cm.During using charcoal suitably
Watering.
Described shallow-layer is turned over, and uses hoe, bamboo rake, rotary cultivator or Cultivator to carry out shallow-layer and turn over, and making ploughed depth is 1-
10cm.Preferably, described shallow-layer ploughed depth is 1-5cm, more preferably 5cm.
Stable soil-charcoal the cushion formed after described irrigation, its thickness is 1-10cm.Preferably,
Described soil-charcoal cushion is 1-5cm, more preferably 5cm.
A kind of rice field pollution of area source reduces discharging and increasing production of rice method, and processing method is as follows: use charcoal in soil surface
Form charcoal cover layer, charcoal cover layer is carried out shallow-layer and turns over, irrigate in good time and form stable soil-charcoal buffering
Layer.
Relative to prior art, beneficial effects of the present invention: the invention provides a kind of rice field pollution of area source and reduce discharging and water
Rice well stimulation, by changing charcoal method of application, puts into, under conditions of not applying extra power not increasing additional material
Improve the ability of charcoal absorption rice field Soil surface water nitrogen, reduce the pollution of area source risk that rice field Soil surface water causes, and improve water
Rice yield.Specifically, the present invention realizes following beneficial effect:
1) make full use of the charcoal absorbability to nitrogen, solve tradition rice field Soil surface water nitrogen processing method cost high
Problem, do not increasing extra cost, causing and reduce rice field Soil surface water nitrogen concentration on the premise of negative environment effects.
2) present invention forms soil-charcoal cushion, in addition to the Soil surface water nitrogen of absorption rice field, can provide to rice root
Nitrogen, promotes rice growth, improves rice yield.
To sum up, a kind of rice field pollution of area source that the present invention proposes reduces discharging and increasing production of rice method, it is achieved that reduces and pollutes, carries
The target of high crop yield, meets the theory of sustainable development.
Accompanying drawing explanation
Fig. 1 is that rice field pollution of area source reduces discharging and the time of rice field Soil surface water ammonia-nitrogen content change after increasing production of rice measure use
Curve；
Fig. 2 is that rice field pollution of area source reduces discharging and the time of rice field Soil surface water nitrate nitrogen changes of contents after increasing production of rice measure use
Curve；
Fig. 3 is that rice field pollution of area source reduces discharging and the time of rice field Soil surface water total nitrogen content change after increasing production of rice measure use
Curve；
Fig. 4 is the schematic diagram of the inventive method.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further described.
Seeing Fig. 4, a kind of rice field pollution of area source reduces discharging and increasing production of rice method, utilizes the charcoal energy of adsorption to nitrogen
Power, by innovating method of application, improves the charcoal enrichment to Soil surface water nitrogen.In order to avoid the density of charcoal own
Less, the most floating, the deficiency of loss, charcoal is mixed with topsoil, forms a richness in paddy soils water termination
Cushion containing charcoal, it is achieved the interception to Soil surface water nitrogen, reduces nitrogen loss, improves nutrientuse efficiency.Which
Different from existing charcoal method of application, existing method of application typically uses and is thoroughly mixed, because of rice soil resistance to mass tranfer very
Greatly, this method of application is unfavorable for the charcoal enrichment to Soil surface water nutrient, and in lower soil, charcoal is difficult to face, field, top layer
Water nitrogen plays buffering and adsorption；Another is that charcoal is spread fertilizer over the fields in field, and this method of application can cause charcoal
Run off, be unfavorable for the performance of charcoal effectiveness.Applying method is mixed on the top layer that the present invention proposes, and can be prevented effectively from above two and use
The shortcoming of mode, it is achieved charcoal utilizes the maximization of usefulness.Charcoal is applied in upper soll layer, carries out shallow-layer and turn over,
On the premise of not increasing charcoal amount of application, improve the charcoal absorbability to rice field Soil surface water nitrogen.Core innovative point is
Increase upper soll layer charcoal density, increase its to the absorbability of nitrogen in the Soil surface water of rice field, simultaneously reduce soil subsurface stratum
And following charcoal density, increase the Soil Nitrogen effectiveness in the range of rice root.Reducing rice field Soil surface water nitrogen concentration
While, improve the nitrogen use efficiency of Oryza sativa L., increase rice yield.This application program is divided into three processes: use charcoal in
Soil surface forms charcoal cover layer, charcoal cover layer carries out soil-life that shallow-layer is turned over, irrigation formation in good time is stable
Thing charcoal cushion.
First step forms charcoal cover layer for using charcoal in soil surface, and this process should avoid charcoal
Running off, the charcoal particularly caused because of wind runs off.Suitably can sprinkle water during using charcoal if desired.Compare tradition
The mode directly used, this method is possible to prevent charcoal movement in the horizontal direction and loss.In order to reduce charcoal self
The higher discharge causing Soil surface water pH relatively big by disturbance, and then increasing ammonia volatilization of alkalescence, should spray wood vinegar before charcoal is used
Liquid (side-product in charcoal preparation process), regulates its pH to reduce ammonia volatilization flux.
Second step is turned over for charcoal cover layer is carried out shallow-layer, preliminarily forms soil-charcoal cushion.Turn over
Should not be the deepest, the control disturbance degree of depth is 1-10cm.
3rd step is to irrigate the soil-charcoal cushion formed.On the basis of completing step one and two,
Rice field is irrigated, makes soil and charcoal sufficiently bond, form new stable upper soll layer, i.e. soil-life
Thing charcoal cushion.
Described charcoal is prepared from by one or more crop residueses following: wheat stalk, corn straw, Oryza sativa L. straw
Stalk, soybean stalk, cotton stalk, Semen Sesami straw, rape stalk.Described charcoal specific surface area is not less than 50m2/g。
In order to control to use the ammonia volatilization amount increase that charcoal may cause, and improvement soil physico chemical factor further,
When prepared charcoal pH is not higher than 8.0 (pH value is less on the impact of ammonia volatilization), can directly use charcoal；Biological
When charcoal pH is higher than 8.0 (pH value there may be considerable influence to ammonia volatilization), then need to join when using charcoal and execute wood vinegar.Join and execute
Wood vinegar pH between 3-5, active constituent content is between 3%-10%.Join the wood vinegar executed and be converted into unit are
Usage amount is between 50L-200L/ha, to guarantee that this method of application is less to the disturbance of Soil surface water pH value.Wood vinegar derives from
The side-product of above-mentioned straw retort process.
Described soil-charcoal cushion, its charcoal mass ratio is 0.1-10% (w/w).Described charcoal covers
Layer, its thickness is 1-5cm.Described shallow-layer is turned over, and uses hoe, bamboo rake, rotary cultivator or Cultivator to carry out shallow-layer and turn over so that it is to turn over
Tilling depth degree is 1-10cm.Soil-charcoal the cushion formed after described irrigation, its thickness is 1-10cm.
Processing method is as follows: uses charcoal and forms charcoal cover layer in soil surface, carry out charcoal cover layer
Shallow-layer is turned over, is irrigated soil-charcoal cushion that formation is stable in good time.Final realization reduces nitrogen concentration in the Soil surface water of rice field,
Alleviate pollution of area source risk；Simultaneously by improving soil physical chemistry condition, increase soil fertility, increase rice yield.The present invention's
Rice field pollution of area source reduces discharging and increasing production of rice method, by changing charcoal method of application, can throw not increasing additional material
Enter, improve charcoal absorption rice field Soil surface water ammonia nitrogen and the ability of nitrate nitrogen under conditions of not applying extra power, reduce field, rice field
The pollution of area source risk that face water causes, and improve rice yield.There is the feature such as low cost, extra less investment.
Embodiment 1 has investigated the pollution of area source reduction of discharging of a kind of rice field and increasing production of rice measure to rice field Soil surface water nitrogen concentration (ammonia
Nitrogen, nitrate nitrogen and total nitrogen) impact.Set up Oryza sativa L. potted plant experiment in 2015 at test site, Jiangsu Province Agriculture Science Institute, set 3
Processing, be respectively and do not execute charcoal (CKU), routine uses charcoal, and (W700-CM, charcoal amount of application 0.5%w/w use deep
Degree is 15cm), charcoal application program (W700-SM, charcoal amount of application 0.5%w/w, the soil-charcoal buffering of the present invention
Layer is 5cm, joins and executes wood vinegar pH=4.0, and effective ingredient 5%, joining the wood vinegar usage amount executed is 100L/ha, and shallow-layer is turned over deeply
Degree is 5cm, and wheat stalk prepares charcoal, and preparation temperature is 700 DEG C, and the specific surface area of charcoal is 80m2/ g, charcoal covers
Cap rock 3cm).Charcoal is that wheat stalk is fired at 700 DEG C and formed.In after topdressing in base manure and tillering stage and fringe phase 7 days
(dose is respectively 96,96 and 48kg N/ha), gathers Soil surface water water sample analysis ammonia nitrogen, nitrate nitrogen and total nitrogen content every day.Oryza sativa L.
Transplanting depth is 2-3cm.
The novel rice field pollution of area source of embodiment 2 reduces discharging and the increasing production of rice measure resistance control effect to rice field Soil surface water ammonia nitrogen
The present embodiment has been investigated a kind of novel rice field pollution of area source and has been reduced discharging and the increasing production of rice measure absorption effect to ammonia nitrogen
Really (Fig. 1).The present embodiment concrete operations mode is similar to Example 1.After using base manure, tillering fertilizer and ear manuer, and use fertilizer
Expecting but do not use the process contrast of charcoal, under new bio charcoal application program processes, rice field Soil surface water ammonia nitrogen averagely declines
33.57mg/L, and under regular basis, rice field Soil surface water ammonia nitrogen averagely declines 16.1mg/L.New bio charcoal application program
Rice field Soil surface water ammonia-nitrogen content can be significantly reduced, on the premise of not increasing charcoal amount of application, new bio charcoal application program
Rice field Soil surface water ammonia-nitrogen content is made to reduce more than 1 times.
The novel rice field pollution of area source of embodiment 3 reduces discharging and the increasing production of rice measure resistance control effect to rice field Soil surface water nitrate nitrogen
The present embodiment has been investigated a kind of novel rice field pollution of area source and has been reduced discharging and the increasing production of rice measure absorption effect to nitrate nitrogen
Really (Fig. 2).The present embodiment concrete operations mode is similar to Example 1.After using base manure, tillering fertilizer and ear manuer, and use fertilizer
Expecting but do not use the process contrast of charcoal, under new bio charcoal application program processes, rice field Soil surface water nitrate nitrogen averagely declines
1.62mg/L, and under regular basis, rice field Soil surface water nitrate nitrogen averagely rises 0.43mg/L.New bio charcoal application program energy
Significantly reduce rice field Soil surface water nitrate nitrogen content, and regular basis is more weak to the absorbability of rice field Soil surface water nitrate nitrogen.
The novel rice field pollution of area source of embodiment 4 reduces discharging and the increasing production of rice measure resistance control effect to rice field Soil surface water total nitrogen
The present embodiment has been investigated a kind of novel rice field pollution of area source and has been reduced discharging and the increasing production of rice measure absorption effect to total nitrogen
Really (Fig. 3).The present embodiment concrete operations mode is similar to Example 1.After using base manure, tillering fertilizer and ear manuer, and use fertilizer
Expecting but do not use the process contrast of charcoal, under new bio charcoal application program processes, rice field Soil surface water total nitrogen averagely declines
9.10mg/L, and under regular basis, rice field Soil surface water total nitrogen averagely declines 4.14mg/L.New bio charcoal application program energy
Significantly reducing rice field Soil surface water total nitrogen content, on the premise of not increasing charcoal amount of application, new bio charcoal application program makes
Rice field Soil surface water total nitrogen content reduces more than 1 times.
The novel rice field pollution of area source of embodiment 5 reduces discharging and the increasing production of rice measure impact on rice yield
The present embodiment has been investigated a kind of novel rice field pollution of area source and has been reduced discharging and the increasing production of rice measure shadow to rice yield
Ring.The present embodiment concrete operations mode is similar to Example 1.New bio charcoal application program processes and compares regular basis,
Rice yield increases by 15.25%.Soil in new bio charcoal application program-charcoal cushion can regard the container of nitrogen as,
Can improve the nitrogen use efficiency of rice yield and Oryza sativa L., reduce further the risk of widespread pollution from the overuse of fertilizers and pesticides in rural area, concrete outcome is shown in Table
1。
Table 1 Rice Yield Structure
The ultimate principle of the present invention, principal character and advantage have more than been shown and described.The technical staff of the industry should
Understanding, above-described embodiment limits the present invention the most in any form, and the mode of all employing equivalents or equivalent transformation is obtained
Technical scheme, all falls within protection scope of the present invention.
Claims (10)
1. a rice field pollution of area source reduces discharging and increasing production of rice method, it is characterised in that comprise the steps:
First step: use charcoal and form charcoal cover layer in soil surface；
Second step: charcoal cover layer is carried out shallow-layer and turns over, preliminarily forms soil-charcoal cushion；Turn over time control
The disturbance degree of depth processed is 1-10 cm；
3rd step: irrigate the soil-charcoal cushion preliminarily formed, make soil and charcoal sufficiently bond,
Form stable upper soll layer, the most stable soil-charcoal cushion.
A kind of rice field the most according to claim 1 pollution of area source reduces discharging and increasing production of rice method, it is characterised in that: described
Charcoal is prepared from by one or more crop residueses following: wheat stalk, corn straw, rice straw, soybean stalk, cotton
Chopped straw stalk, Semen Sesami straw, rape stalk.
A kind of rice field the most according to claim 1 and 2 pollution of area source reduces discharging and increasing production of rice method, it is characterised in that: institute
The specific surface area of the charcoal stated is not less than 50m2/g。
A kind of rice field the most according to claim 1 pollution of area source reduces discharging and increasing production of rice method, it is characterised in that: first
In individual step, when charcoal pH is not higher than 8.0, directly use charcoal in soil surface；When charcoal pH is higher than 8.0,
Join when using charcoal and execute wood vinegar；Join the wood vinegar pH executed between 3-5, the weight/mass percentage composition of effective ingredient between
Between 3%-10%；Join the usage amount of the wood vinegar executed between 50L-200L/ha.
A kind of rice field the most according to claim 1 pollution of area source reduces discharging and increasing production of rice method, it is characterised in that: the 3rd
In individual step, described stable soil-charcoal cushion, its charcoal mass ratio is 0.1-10% w/w.
A kind of rice field the most according to claim 1 pollution of area source reduces discharging and increasing production of rice method, it is characterised in that: described life
Thing charcoal cover layer, its thickness is 1-5cm.
A kind of rice field the most according to claim 1 pollution of area source reduces discharging and increasing production of rice method, it is characterised in that: described
Shallow-layer is turned over, and uses hoe, bamboo rake, rotary cultivator or Cultivator to carry out shallow-layer and turn over, and making ploughed depth is 1-10 cm.
A kind of rice field the most according to claim 1 pollution of area source reduces discharging and increasing production of rice method, it is characterised in that: described
Stable soil-charcoal the cushion formed after irrigation, its thickness is 1-10 cm.
A kind of rice field the most according to claim 1 pollution of area source reduces discharging and increasing production of rice method, it is characterised in that: first
In individual step, sprinkle water during using charcoal.
10. a rice field pollution of area source reduces discharging and increasing production of rice method, it is characterised in that: processing method is as follows: use charcoal
Form charcoal cover layer in soil surface, charcoal cover layer carried out shallow-layer and turns over, irrigate in good time formed stable soil-
Charcoal cushion.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106778025A (en) * | 2017-01-05 | 2017-05-31 | 西北农林科技大学 | A kind of simulation of agricultural chemicals pollution of area source and appraisal procedure |
| CN107493907A (en) * | 2017-09-14 | 2017-12-22 | 江苏省农业科学院 | Wheat stain evil stress, the method for promotion wheat increase yield in a kind of alleviation Rice-wheat rotation system |
| CN109369302A (en) * | 2018-12-21 | 2019-02-22 | 中国农业科学院农业环境与可持续发展研究所 | A kind of rice field clean type charcoal mud base bio-fertilizer |
| CN110193343A (en) * | 2019-06-06 | 2019-09-03 | 北京市农林科学院 | A kind of modified expanded vermiculite material of acid and its preparation and application for reducing sewage of farm and storing emission intensity |
| CN111040768A (en) * | 2020-01-02 | 2020-04-21 | 江苏省农业科学院 | Preparation of bentonite modified hydrothermal carbon material and application of bentonite modified hydrothermal carbon material in non-point source pollution emission reduction |
| CN111972233A (en) * | 2020-07-17 | 2020-11-24 | 江苏省农业科学院 | Method for applying biochar and pyroligneous acid in rice field and application of biochar and pyroligneous acid in reduction of greenhouse gas emission in rice field |
| CN113016519A (en) * | 2021-03-26 | 2021-06-25 | 山东尚上禾本生态科技有限公司 | Soil cultivation method in conversion process from conventional cultivation to natural farming cultivation |
| CN114667842A (en) * | 2021-12-17 | 2022-06-28 | 河北省农林科学院农业资源环境研究所 | Straw returning treatment method for improving nitrogen buffer capacity of plough layer soil |
| CN115191303A (en) * | 2022-07-14 | 2022-10-18 | 四川省农业科学院水稻高粱研究所 | Method for cultivating carbon-fixing rice in winter paddy field by emission reduction |
| CN115316096A (en) * | 2021-12-29 | 2022-11-11 | 浙江省农业科学院 | Method for reducing ammonia loss of rice field by side deep fertilization |
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