CN104604605B - Composite control method for paddy field weeds - Google Patents
Composite control method for paddy field weeds Download PDFInfo
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- CN104604605B CN104604605B CN201510010221.1A CN201510010221A CN104604605B CN 104604605 B CN104604605 B CN 104604605B CN 201510010221 A CN201510010221 A CN 201510010221A CN 104604605 B CN104604605 B CN 104604605B
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- 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
- A01G13/00—Protecting plants
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
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Abstract
The invention discloses a composite control method for paddy field weeds. The composite control method comprises the steps that bensulfuron methyl is sprayed synchronously in the process of planting rice, and a chemical method is used for controlling growth of the paddy field weeds; nitrogen fixation anabaena is applied during the period of 30-45 days after the rice is planted, and a biological method is used for further controlling growth of the paddy field weeds. According to the composite control method, the chemical method and the biological method are combined, germination of the weeds is suppressed quickly and effectively, and further germination and growth of the paddy field weeds are controlled under the action of the nitrogen fixation anabaena; as a result, the nitrogen fixation capability and the carbon fixation capability of crops are improved simultaneously, harm of the weeds is greatly reduced, normal growth of the crops is guaranteed, the use amount of paddy field herbicide is reduced, the weeds are prevented from generating resistance, and the composite control method has great significance in maintaining the stability of the ecological system and guaranteeing the quality and yield of the rice.
Description
Technical field
The present invention relates to agricultural technology, particularly to a kind of composite control method of weeds in paddy field.
Technical background
Weeds in paddy field is the important component part of paddy ecosystem, many with paddy rice competition illumination, moisture, soil nutrient etc.
The features such as plant resource, and manage and eradicate because its species is many, breeding fast, growth is vigorous, more refractory, easily leads to the underproduction of crop very
To No kernels or seeds are gathered, as in a year of scarcity, it is impact rice yield and the key factor of quality, leads to crop failure 12.3%-16.5% every year, effectively
Weeds in paddy field field control and administer most important for the growth of rice field crop.
Herbicide is the common method going in farmland sysrem to cut weeds, save time because of it, saving of labor, instant effect, the weeding such as efficiently
Effect, has become as important measures in modern agricultural production.But a large amount of use of herbicide brings to ecological environment
A series of harmful effect and serious consequence.As bio-diversity minimizing, environmental pollution and generation Weed Resistance, aggravation soil
Earth corrodes, degenerates etc., so that the problems such as human and livestock health and grain security is become increasingly conspicuous.
Azotica is the common class unicellular prokaryotic algae that swims in freshwater, is compared with horn of plenty in China farmland
Quality plant resource, its in biological nitrogen fixation, carbon sequestration, reduce discharging and use there is great potentiality and using value.It can be fixed greatly
Free nitrogen synthesize various nitride in gas, amount of nitrogen fixation is up to 10-51n kg/ha；Azotica growth and breeding is rapid, can be
Quickly being paved with the water surface in short time and suppress sprouting and the growth of weeds, thus reducing herbicide usage frequency, reducing environment dirty
Dye；Frond supplies crop utilization as nutrient source after sinking to soil, can improve soil texture and fertility again.
China's Rice Cropping region is wide, and in Yangtze River Delta Region, Azotica suitable growth temperature is 28-32 DEG C,
And Period of paddy planting is in late May to early June, now environment temperature is unfavorable for the growth of Azotica it is impossible to play very well
Weed control effect.How to play the herbicide and Azotica double dominant in rice field, the two makes up for each other's deficiencies and learn from each other, then real
Existing high-quality resource using the correlative study such as value problems have not yet to see report.
Content of the invention
The purpose of the present invention, it is simply that the difficult problem for prior art presence and deficiency, provides a kind of the compound of weeds in paddy field
Control method.
In order to realize the purpose of the present invention, present invention employs a kind of technical scheme below: complex controll of weeds in paddy field
Method, is synchronously to spray bensulfuron-methyl in Rice Cropping, chemically controls the growth of weeds in paddy field；In Rice Cropping
Throw in Activity In Anabaena Azotica during 30-45 days, control the growth of weeds in paddy field with biological method further.
The composite control method of above-mentioned weeds in paddy field, specifically includes following steps:
1), during Rice Cropping, 10% bensulfuron-methyl wettable powder 2.5-25g is synchronously spread fertilizer over the fields in every mu of rice field；
2), after Rice Cropping during 30-45 days, Activity In Anabaena Azotica dry algae powder 2500-3000g is thrown in every mu of rice field.
When spreading fertilizer over the fields 10% bensulfuron-methyl wettable powder, control water depth 3-5cm, and keep 3-4 days.
The present invention is closed down to weeds by spraying bensulfuron-methyl in Rice Cropping early stage, throws in the paddy growth middle and later periods
Put Activity In Anabaena Azotica weeds are controlled, the complex method combining with biological weed control using chemistry, both fast and effeciently pressed down
The sprouting of weeds processed, acts on, further through Azotica, sprouting further and the growth controlling weeds in paddy field, improves crop simultaneously
Fixed nitrogen, carbon sequestration capacity, greatly reduce weeds harm it is ensured that the normal growth of crop, decrease herbicides for use in paddy
Consumption, it is to avoid weeds produce resistance, great for safeguarding that the ecosystem stablizes and ensure that the quality and yield of paddy rice has
Meaning.
Brief description
Fig. 1 is to apply the impact to Activity In Anabaena Azotica cell number for the variable concentrations bensulfuron-methyl；
Fig. 2 is to apply the impact to Activity In Anabaena Azotica growth rate for the variable concentrations bensulfuron-methyl；
Fig. 3 is to apply the impact to Activity In Anabaena Azotica dry weight for the variable concentrations bensulfuron-methyl；
Fig. 4 is after the Rice Cropping same day sprays bensulfuron-methyl and throws in Activity In Anabaena Azotica, to weeds in paddy field gross density
Impact；
Fig. 5 is to spray bensulfuron-methyl on the Rice Cropping same day and threw in the impact to paddy rice nitrogen fixing capacity for the Activity In Anabaena Azotica；
Fig. 6 is to spray bensulfuron-methyl on the Rice Cropping same day and threw in the impact to paddy rice carbon sequestration capacity for the Activity In Anabaena Azotica；
Fig. 7 is the shadow after the Rice Cropping same day sprays bensulfuron-methyl and throws in Activity In Anabaena Azotica, to paddy rice hectare yield
Ring；
Fig. 8 is to throw in the impact to weeds in paddy field gross density for the Activity In Anabaena Azotica after Rice Cropping 30 days；
Fig. 9 is to throw in the impact to paddy rice nitrogen fixing capacity for the Activity In Anabaena Azotica after Rice Cropping 30 days；
Figure 10 is to throw in the impact to paddy rice carbon sequestration capacity for the Activity In Anabaena Azotica after Rice Cropping 30 days；
Figure 11 is to throw in the impact to paddy rice hectare yield for the Activity In Anabaena Azotica after Rice Cropping 30 days；
Figure 12 is to throw in the impact to weeds in paddy field gross density for the Activity In Anabaena Azotica after Rice Cropping 45 days；
Figure 13 is to throw in the impact to paddy rice nitrogen fixing capacity for the Activity In Anabaena Azotica after Rice Cropping 45 days；
Figure 14 is to throw in the impact to paddy rice carbon sequestration capacity for the Activity In Anabaena Azotica after Rice Cropping 45 days；
Figure 15 is to throw in the impact to paddy rice hectare yield for the Activity In Anabaena Azotica after Rice Cropping 45 days.
Specific implementation method
The composite control method of weeds in paddy field of the present invention, is synchronously to spray bensulfuron-methyl in Rice Cropping, with chemistry side
Method controls the growth of weeds in paddy field；Throw in Activity In Anabaena Azotica during Rice Cropping 30-45 days, controlled further with biological method
The growth of weeds in paddy field.Below by way of specific embodiment, the invention will be further described.
Embodiment 1
The enforcement time: in June, 2014 is in October, 2014.
Enforcement place: Qingpu Shanghai Modern Agricultural Park.
Testing program: using 3 kinds of processing modes, respectively blank ck (not doing any weeding behavior), conventional cr (according to
According to conventional field management, timing artificial weeding), test (a1, a2, a3, a4, a5, a6).Each process is repeated 3 times, every cell face
Long-pending 20.
1) the Rice Cropping same day, spray 0.0025 to a1, a2, a3, a4, a5, a6 test block respectively, 0.025,0.25,
2.5th, 25, the bensulfuron-methyl wettable powder of 250g/ mu concentration, and water conservation 3-5cm, keeps 3-4 days.
2) in Rice Cropping and spray same day of bensulfuron-methyl, throw in Activity In Anabaena Azotica dry algae powder in rice field, throw in close
Spend for 2600g/ mu.
3) as shown in figure 4, throwing in the shadow to weeds in paddy field gross density for the Activity In Anabaena Azotica under different bensulfuron-methyl treatment conditions
Sound is different, and the weeds in paddy field gross density that wherein ck is processed is significantly higher than cr and a group.Result of the test shows, ck processes weeds
Up to 545 plants of gross density/, compared with ck treatment group, a1, a2, a3, a4, a5, a6 and ar each group Weed control effect reaches 6.05%,
7.34%th, 8.26%, 33.58%, 43.12%, 57.43%, 83.67%.As shown in figure 5, conventional cr is (according to conventional field pipe
Reason, regular weeding), test a (throw in Activity In Anabaena Azotica then no longer do any weeding behavior), tri- kinds of different disposal of blank ck
The impact significant difference to rice plant nitrogen fixing capacity for the method, after throwing in Activity In Anabaena Azotica 30 days, accumulates to rice plant nitrogen
Amount is measured drawing, compared with ck, the nitrogen accumulation of test a1, a2, a3, a4, a5, a6 and cr each cell rice plant is respectively
For 3.3%, 6.7%, 4.2%, 21.7%, 35%, 1.7% and 18.3%.As shown in fig. 6, under different bensulfuron-methyls are processed, throwing
Put the impact to the rice plant content of organic matter for the Activity In Anabaena Azotica to be also slightly different, compared with the control, a1, a2, a3, a4, a5, a6
Reach 4.3%, 6.2%, 7.2%, 30.8%, 38.8%, 3.8% and 17.5% with the paddy rice content of organic matter in cr；And it is different dense
The impact to rice yield for the bensulfuron-methyl of degree is also not quite similar.As shown in fig. 7, entering to paddy rice hectare yield after rice harves
Row calculates, and the underproduction 5.7%, 2.5% and 2.4%, a4 and a5 increase production 8.3% and 12.3% respectively respectively for a1, a2, a3.By
This is visible, at once throws in Activity In Anabaena Azotica after spraying bensulfuron-methyl, does not play obvious rush algae Weed control effect.
Embodiment 2
The enforcement time: in June, 2014 is in October, 2014
Enforcement place: Qingpu Shanghai Modern Agricultural Park
Testing program: using 3 kinds of processing modes, respectively blank ck (not doing any weeding behavior), conventional cr (according to
According to conventional field management, timing weeding), test (a1, a2, a3, a4, a5, a6).Each process is repeated 3 times, every plot area 20
㎡.
1) the Rice Cropping same day, spray 0.0025 to a1, a2, a3, a4, a5, a6 test block respectively, 0.025,0.25,
2.5th, 25, the bensulfuron-methyl wettable powder of 250g/ mu concentration, and water conservation 3-5cm, keeps 3-4 days.
2) in Rice Cropping and when spraying 30 days after bensulfuron-methyl, throw in Activity In Anabaena Azotica dry algae powder in rice field, throw in
Density is 2600g/ mu.
3) as shown in figure 8, throwing in the shadow to weeds in paddy field gross density for the Activity In Anabaena Azotica under different bensulfuron-methyl treatment conditions
Ring significant difference, the weeds in paddy field gross density that wherein ck is processed is significantly higher than cr and a group.Result of the test shows, with ck treatment group
Compare, a1, a2, a3, a4, a5, a6 and ar each group Weed control effect reaches 8.18%, 9.82%, 11.09%, 89.64%,
92.73%th, 95.27%, 84.55%, a4, a5, a6 Weed control effect is notable.As shown in figure 9, conventional cr is (according to conventional field pipe
Reason, regular weeding), test a (throw in Activity In Anabaena Azotica then no longer do any weeding behavior), tri- kinds of different disposal of blank ck
The method difference of the impact to rice plant nitrogen fixing capacity, after throwing in Activity In Anabaena Azotica 30 days, accumulates to rice plant nitrogen
Amount is measured drawing, compared with ck, the nitrogen accumulation of test a1, a2, a3, a4, a5, a6 and cr each cell rice plant is respectively
For 4.8%, 11.3%, 10.5%, 32.2%, 41.9%, 1.6% and 19.3%.As shown in Figure 10, different bensulfuron-methyls are processed
Under, throw in the impact to the rice plant content of organic matter for the Activity In Anabaena Azotica and be also slightly different, compared with the control, a1, a2, a3, a4,
In a5, a6 and cr, the paddy rice content of organic matter reaches 7.4%, 9.6%, 7.8%, 37.8%, 49.6%, 6.1% and 15.7%.As figure
Shown in 11, there is significant difference, to paddy rice hectare after rice harves in the impact to rice yield of the bensulfuron-methyl of variable concentrations
Yield is calculated, a1, a2, a3 increase production respectively 1.5%, 1.8% and 1.9%, a4 with a5 increase production respectively 22.2% and
31.4%, rice yield significantly improves.As can be seen here, throw in Activity In Anabaena Azotica within 30 days after spraying bensulfuron-methyl, can play
Significantly promote algae Weed control effect and significantly improve rice yield.
Embodiment 3
The enforcement time: in June, 2014 is in October, 2014
Enforcement place: Qingpu Shanghai Modern Agricultural Park
Testing program: using 3 kinds of processing modes, respectively blank ck (not doing any weeding behavior), conventional cr (according to
According to conventional field management, timing weeding), test (a1, a2, a3, a4, a5, a6).Each process is repeated 3 times, every plot area 20
㎡.
1) the Rice Cropping same day, spray 0.0025 to a1, a2, a3, a4, a5, a6 test block respectively, 0.025,0.25,
2.5th, 25, the bensulfuron-methyl wettable powder of 250g/ mu concentration, and water conservation 3-5cm, keeps 3-4 days.
2), during in Rice Cropping and after spraying bensulfuron-methyl 45 days, throw in Activity In Anabaena Azotica dry algae powder in rice field, throw
Putting density is 2600g/ mu.
3) as shown in figure 12, throw in the shadow to weeds in paddy field gross density for the Activity In Anabaena Azotica under different bensulfuron-methyl treatment conditions
There is larger difference in sound, the weeds in paddy field gross density that wherein ck is processed is significantly higher than cr and a group.Result of the test shows, ck process
Up to 553 plants of weeds gross density/, compared with ck treatment group, a1, a2, a3, a4, a5, a6 and ar each group Weed control effect reaches
7.78%th, 9.58%, 9.04%, 75.22%, 81.01%, 86.62%, 84.09%.As shown in figure 13, conventional cr is (according to normal
Rule field management, regular weeding), test a (throw in Activity In Anabaena Azotica then no longer do any weeding behavior), tri- kinds of blank ck
The impact significant difference to rice plant nitrogen fixing capacity for the different disposal method, after throwing in Activity In Anabaena Azotica 30 days, plants to paddy rice
Strain nitrogen accumulation is measured drawing, compared with ck, the nitrogen of test a1, a2, a3, a4, a5, a6 and cr each cell rice plant amasss
Tired amount is respectively 4.1%, 8.5%, 5.4%, 23.9%, 40%, 1.6% and 18.5%.As shown in figure 14, different bensulfuron-methyls
Under process, throw in the impact to the rice plant content of organic matter for the Activity In Anabaena Azotica and there is larger difference, compared with the control, a1, a2,
A3, a4, in a5, a6 and cr, the paddy rice content of organic matter reaches 6.7%, 8.6%, 7.5%, 34.3%, 44.2%, 5.5% and 18%；
And apply the impact to rice yield of the bensulfuron-methyl of variable concentrations and be also not quite similar.As shown in figure 15, right after rice harves
Paddy rice hectare yield is calculated, a1, a2, a3, a4, a5, a6 increase production 0.23% respectively, 0.66%, 0.65%,
14.84%th, 23.83%, 4.88% and 10.55%.As can be seen here, throw in fixed nitrogen fish raw meat within 45 days after spraying bensulfuron-methyl
Algae, can play certain rush algae Weed control effect.
Fig. 1 is to apply the impact to Activity In Anabaena Azotica cell number for the variable concentrations bensulfuron-methyl；Fig. 2 is to apply variable concentrations benzyl
The impact to Activity In Anabaena Azotica growth rate for the Sulfometuron Methyl；Fig. 3 is to apply variable concentrations bensulfuron-methyl to Activity In Anabaena Azotica dry weight
Impact.
Claims (1)
1. a kind of composite control method of weeds in paddy field, it is characterised in that being synchronously to spray bensulfuron-methyl in Rice Cropping, is used
Chemical method controls the growth of weeds in paddy field；Throw in Activity In Anabaena Azotica during Rice Cropping 30-45 days, enter one with biological method
Step controls the growth of weeds in paddy field；
Specifically include following steps:
1), during Rice Cropping, 10% bensulfuron-methyl wettable powder 2.5-25g is synchronously spread fertilizer over the fields in every mu of rice field；
2), after Rice Cropping during 30-45 days, Activity In Anabaena Azotica dry algae powder 2500-3000g is thrown in every mu of rice field；Spread fertilizer over the fields 10%
During bensulfuron-methyl wettable powder, control water depth 3-5cm, and keep 3-4 days.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105325224B (en) * | 2015-11-23 | 2018-01-12 | 福建省农业科学院植物保护研究所 | A kind of Integrated co ntrol method of regeneration rice field weeds |
| CN105684803B (en) * | 2016-02-05 | 2019-09-10 | 江苏猿人有机水稻种植有限公司 | Crop smothering preventing control method in organic paddy rice planting process |
| CN107852884B (en) * | 2017-12-04 | 2020-08-11 | 中国科学院水生生物研究所 | Method for improving acidified soil and improving soil by using nitrogen-fixing blue algae |
| CN110352818A (en) * | 2019-08-22 | 2019-10-22 | 昆明学院 | A kind of non-polluted food base method of weeds in paddy field |
| CN112875871A (en) * | 2021-04-09 | 2021-06-01 | 中国科学院南京土壤研究所 | Nitrogen interception and reuse method based on periphyton in rice field |
| CN113671130B (en) * | 2021-08-24 | 2022-11-15 | 上海交通大学 | Method for researching prevention and control mechanism of interface barrier on weeds in paddy field |
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