CN104604605A - Composite control method for paddy field weeds - Google Patents
Composite control method for paddy field weeds Download PDFInfo
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- CN104604605A CN104604605A CN201510010221.1A CN201510010221A CN104604605A CN 104604605 A CN104604605 A CN 104604605A CN 201510010221 A CN201510010221 A CN 201510010221A CN 104604605 A CN104604605 A CN 104604605A
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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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- Pest Control & Pesticides (AREA)
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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 agrotechnique, particularly 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, with multiple resources such as paddy rice compete for light photograph, moisture, soil nutrients, again because its kind is many, breeding is fast, it is vigorous to grow, the comparatively feature such as refractory reason and elimination, even No kernels or seeds are gathered, as in a year of scarcity very easily to cause the underproduction of crop, it is the key factor affecting rice yield and quality, cause crop failure 12.3%-16.5% every year, effective weeds in paddy field field controls and administers most important for the growth of rice field crop.
Weed killer herbicide is the common method removing weeds in farmland sysrem, because of its save time, saving of labor, instant effect, the herbicidal efficacy such as efficient, become important measures in modern agricultural production.But a large amount of uses of weed killer herbicide bring a series of harmful effect and serious consequence to ecotope.As bio-diversity minimizing, environmental pollution and generation Weed Resistance, aggravate the soil erosion, degeneration etc., also make the problem such as human and livestock health and grain security become increasingly conspicuous.
Azotica is the class unicellular prokaryotic algae that swims common in freshwater, is the quality plant resource compared with horn of plenty in China farmland, its at biological nitrogen fixation, solid carbon, reduce discharging to use there is great potentiality and using value.It can be fixed nitrogen free in air and synthesize various nitride, and amount of nitrogen fixation is up to 10-51N kg/ha; Azotica growth and breeding is rapid, can be paved with the water surface fast at short notice and suppress sprouting and the growth of weeds, thus reducing weed killer herbicide frequency of utilization, reducing environmental pollution; Frond supplies crop utilization as nutrient source after sinking to soil, can improve soil structure 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, and now environmental temperature is unfavorable for the growth of Azotica, cannot play good Weed control effect.How to play weed killer herbicide and the double dominant of Azotica in rice field, the two makes up for each other's deficiencies and learn from each other, and then realizes the correlative studys such as the value problems of high-quality resource utilization and has not yet to see report.
Summary of the invention
Object of the present invention, is exactly the difficult problem for prior art existence and deficiency, provides a kind of composite control method of weeds in paddy field.
In order to realize object of the present invention, present invention employs following technical scheme: a kind of composite control method of weeds in paddy field, being synchronously spray bensulfuron-methyl when Rice Cropping, chemically controlling the growth of weeds in paddy field; During Rice Cropping 30-45 days, throw in Activity In Anabaena Azotica, control the growth of weeds in paddy field with biological method further.
The composite control method of above-mentioned weeds in paddy field, specifically comprises the following steps:
1), during Rice Cropping, 10% bensulfuron-methyl wetting 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 wetting powder, control water depth 3-5cm, and keep 3-4 days.
The present invention closes down weeds by earlier stage spraying bensulfuron-methyl at Rice Cropping, throw in Activity In Anabaena Azotica in the paddy growth middle and later periods to control weeds, adopt the complex method that chemistry combines with biological weed control, both the sprouting of weeds had fast and effeciently been suppressed, further sprouting and the growth of weeds in paddy field is controlled again by Azotica effect, improve the fixed nitrogen of crop simultaneously, Gu carbon ability, greatly reduce the harm of weeds, ensure that the normal growth of crop, decrease the consumption of herbicides for use in paddy, weeds are avoided to produce resistance, for safeguarding the stable of the ecosystem and ensureing that the quality and yield of paddy rice is significant.
Accompanying drawing explanation
Fig. 1 uses the impact of variable concentrations bensulfuron-methyl on Activity In Anabaena Azotica cell number;
Fig. 2 uses the impact of variable concentrations bensulfuron-methyl on Activity In Anabaena Azotica growth rate;
Fig. 3 uses the impact of variable concentrations bensulfuron-methyl on Activity In Anabaena Azotica dry weight;
Fig. 4 is after Rice Cropping sprayed bensulfuron-methyl and threw in Activity In Anabaena Azotica the same day, on the impact of weeds in paddy field gross density;
Fig. 5 sprayed bensulfuron-methyl at Rice Cropping and threw in the impact of Activity In Anabaena Azotica on paddy rice nitrogen fixing capacity the same day;
Fig. 6 sprayed bensulfuron-methyl at Rice Cropping and threw in the impact of Activity In Anabaena Azotica on paddy rice solid carbon ability the same day;
Fig. 7 is after Rice Cropping sprayed bensulfuron-methyl and threw in Activity In Anabaena Azotica the same day, on the impact of paddy rice hectare output;
Fig. 8 throws in Activity In Anabaena Azotica for 30 days to the impact of weeds in paddy field gross density afterwards at Rice Cropping;
Fig. 9 throws in Activity In Anabaena Azotica for 30 days to the impact of paddy rice nitrogen fixing capacity afterwards at Rice Cropping;
Figure 10 throws in the impact of Activity In Anabaena Azotica on the solid carbon ability of paddy rice for 30 days afterwards at Rice Cropping;
Figure 11 throws in Activity In Anabaena Azotica for 30 days to the impact of paddy rice hectare output afterwards at Rice Cropping;
Figure 12 throws in Activity In Anabaena Azotica for 45 days to the impact of weeds in paddy field gross density afterwards at Rice Cropping;
Figure 13 throws in Activity In Anabaena Azotica for 45 days to the impact of paddy rice nitrogen fixing capacity afterwards at Rice Cropping;
Figure 14 throws in the impact of Activity In Anabaena Azotica on the solid carbon ability of paddy rice for 45 days afterwards at Rice Cropping;
Figure 15 throws in Activity In Anabaena Azotica for 45 days to the impact of paddy rice hectare output afterwards at Rice Cropping.
Specific implementation method
The composite control method of weeds in paddy field of the present invention, is synchronously spray bensulfuron-methyl when Rice Cropping, chemically controls the growth of weeds in paddy field; During Rice Cropping 30-45 days, throw in Activity In Anabaena Azotica, control the growth of weeds in paddy field with biological method further.Below by way of specific embodiment, the invention will be further described.
Embodiment 1
The enforcement time: in June, 2014 is in October, 2014.
Implement place: Qingpu Shanghai Modern Agricultural Park.
Testing program: adopt 3 kinds of processing modes, is respectively blank CK (not doing any weeding behavior), conventional CR (according to conventional field management, timing artificial weeding), test (A1, A2, A3, A4, A5, A6).Each process repetition 3 times, every plot area 20 ㎡.
1) Rice Cropping same day, respectively to A1, A2, A3, A4, A5, A6 test block spray 0.0025,0.025,0.25,2.5,25, the bensulfuron-methyl wetting powder of 250g/ mu concentration, and water conservation 3-5cm, keeps 3-4 days.
2) spray same day of bensulfuron-methyl at Rice Cropping, in rice field, throw in Activity In Anabaena Azotica dry algae powder, throwing in density is 2600g/ mu.
3) as shown in Figure 4, it is different to throw in the impact of Activity In Anabaena Azotica on weeds in paddy field gross density under different bensulfuron-methyl treatment conditions, and the weeds in paddy field gross density of wherein CK process is significantly higher than CR and A group.Result of the test shows, CK process weeds gross density is up to 545 Zhu/㎡, and compared with CK processed group, A1, A2, A3, A4, A5, A6 and AR respectively organize Weed control effect and reach 6.05%, 7.34%, 8.26%, 33.58%, 43.12%, 57.43%, 83.67%.As shown in Figure 5, conventional CR (conveniently field management, regular weeding), test A (throw in Activity In Anabaena Azotica then no longer do any weeding behavior), blank CK tri-kinds of different disposal methods affect significant difference to rice plant nitrogen fixing capacity, at input Activity In Anabaena Azotica after 30 days, carry out mensuration to rice plant nitrogen accumulation to draw, compared with CK, the nitrogen accumulation of test A1, A2, A3, A4, A5, A6 and CR each community rice plant is respectively 3.3%, 6.7%, 4.2%, 21.7%, 35%, 1.7% and 18.3%.As shown in Figure 6, under different bensulfuron-methyl process, throw in Activity In Anabaena Azotica also slightly different on the impact of the rice plant content of organic matter, compared with the control, A1, A2, A3, in A4, A5, A6 and CR, the paddy rice content of organic matter reaches 4.3%, 6.2%, 7.2%, 30.8%, 38.8%, 3.8% and 17.5%; And the impact of the bensulfuron-methyl of variable concentrations on rice yield is also not quite similar.As shown in Figure 7, calculate after rice harves to paddy rice hectare output, A1, A2, A3 respectively underproduction 5.7%, 2.5% and 2.4%, A4 and A5 increase production 8.3% and 12.3% respectively.As can be seen here, after spraying bensulfuron-methyl, at once throw in Activity In Anabaena Azotica, do not play significantly short algae Weed control effect.
Embodiment 2
The enforcement time: in June, 2014 is in October, 2014
Implement place: Qingpu Shanghai Modern Agricultural Park
Testing program: adopt 3 kinds of processing modes, is respectively blank CK (not doing any weeding behavior), conventional CR (according to conventional field management, timing weeding), test (A1, A2, A3, A4, A5, A6).Each process repetition 3 times, every plot area 20 ㎡.
1) Rice Cropping same day, respectively to A1, A2, A3, A4, A5, A6 test block spray 0.0025,0.025,0.25,2.5,25, the bensulfuron-methyl wetting powder of 250g/ mu concentration, and water conservation 3-5cm, keeps 3-4 days.
2) after spraying bensulfuron-methyl when 30 days, throw in Activity In Anabaena Azotica dry algae powder at Rice Cropping in rice field, throwing in density is 2600g/ mu.
3) as shown in Figure 8, throwing in Activity In Anabaena Azotica under different bensulfuron-methyl treatment conditions affects significant difference to weeds in paddy field gross density, and the weeds in paddy field gross density of wherein CK process is significantly higher than CR and A group.Result of the test shows, compared with CK processed group, A1, A2, A3, A4, A5, A6 and AR respectively organize Weed control effect reach 8.18%, 9.82%, 11.09%, 89.64%, 92.73%, 95.27%, 84.55%, A4, A5, A6 Weed control effect is remarkable.As shown in Figure 9, conventional CR (conveniently field management, regular weeding), test A (throw in Activity In Anabaena Azotica then no longer do any weeding behavior), blank CK tri-kinds of different disposal methods are on the impact of rice plant nitrogen fixing capacity difference to some extent, at input Activity In Anabaena Azotica after 30 days, carry out mensuration to rice plant nitrogen accumulation to draw, compared with CK, the nitrogen accumulation of test A1, A2, A3, A4, A5, A6 and CR each community rice plant is respectively 4.8%, 11.3%, 10.5%, 32.2%, 41.9%, 1.6% and 19.3%.As shown in Figure 10, under different bensulfuron-methyl process, throw in Activity In Anabaena Azotica also slightly different on the impact of the rice plant content of organic matter, compared with the control, A1, A2, A3, in A4, 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 shown in figure 11, there is significant difference in the impact of bensulfuron-methyl on rice yield of variable concentrations, after rice harves, paddy rice hectare output is calculated, A1, A2, A3 increase production 1.5%, 1.8% and 1.9% respectively, A4 and A5 increases production 22.2% and 31.4% respectively, and rice yield significantly improves.As can be seen here, within 30 days after spraying bensulfuron-methyl, throw in Activity In Anabaena Azotica, can play and significantly urge algae Weed control effect and significantly improve rice yield.
Embodiment 3
The enforcement time: in June, 2014 is in October, 2014
Implement place: Qingpu Shanghai Modern Agricultural Park
Testing program: adopt 3 kinds of processing modes, is respectively blank CK (not doing any weeding behavior), conventional CR (according to conventional field management, timing weeding), test (A1, A2, A3, A4, A5, A6).Each process repetition 3 times, every plot area 20 ㎡.
1) Rice Cropping same day, respectively to A1, A2, A3, A4, A5, A6 test block spray 0.0025,0.025,0.25,2.5,25, the bensulfuron-methyl wetting powder of 250g/ mu concentration, and water conservation 3-5cm, keeps 3-4 days.
2), during at Rice Cropping and after spraying bensulfuron-methyl 45 days, in rice field, throw in Activity In Anabaena Azotica dry algae powder, throwing in density is 2600g/ mu.
3) as shown in figure 12, throw in the impact of Activity In Anabaena Azotica on weeds in paddy field gross density under different bensulfuron-methyl treatment conditions and there is larger difference, the weeds in paddy field gross density of wherein CK process is significantly higher than CR and A group.Result of the test shows, CK process weeds gross density is up to 553 Zhu/㎡, and compared with CK processed group, A1, A2, A3, A4, A5, A6 and AR respectively organize Weed control effect and reach 7.78%, 9.58%, 9.04%, 75.22%, 81.01%, 86.62%, 84.09%.As shown in figure 13, conventional CR (conveniently field management, regular weeding), test A (throw in Activity In Anabaena Azotica then no longer do any weeding behavior), blank CK tri-kinds of different disposal methods affect significant difference to rice plant nitrogen fixing capacity, at input Activity In Anabaena Azotica after 30 days, carry out mensuration to rice plant nitrogen accumulation to draw, compared with CK, the nitrogen accumulation of test A1, A2, A3, A4, A5, A6 and CR each community rice plant is respectively 4.1%, 8.5%, 5.4%, 23.9%, 40%, 1.6% and 18.5%.As shown in figure 14, under different bensulfuron-methyl process, throw in the impact of Activity In Anabaena Azotica on the rice plant content of organic matter and there is larger difference, compared with the control, A1, A2, A3, in A4, 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 the impact of bensulfuron-methyl on rice yield of using variable concentrations is also not quite similar.As shown in figure 15, calculate paddy rice hectare output after rice harves, A1, A2, A3, A4, A5, A6 increase production 0.23%, 0.66%, 0.65%, 14.84%, 23.83%, 4.88% and 10.55% respectively.As can be seen here, within 45 days after spraying bensulfuron-methyl, throw in Activity In Anabaena Azotica, certain short algae Weed control effect can be played.
Fig. 1 uses the impact of variable concentrations bensulfuron-methyl on Activity In Anabaena Azotica cell number; Fig. 2 uses the impact of variable concentrations bensulfuron-methyl on Activity In Anabaena Azotica growth rate; Fig. 3 uses the impact of variable concentrations bensulfuron-methyl on Activity In Anabaena Azotica dry weight.
Claims (3)
1. a composite control method for weeds in paddy field, is characterized in that, is synchronously to spray bensulfuron-methyl when Rice Cropping, chemically controls the growth of weeds in paddy field; During Rice Cropping 30-45 days, throw in Activity In Anabaena Azotica, control the growth of weeds in paddy field with biological method further.
2. the composite control method of weeds in paddy field according to claim 1, is characterized in that, specifically comprise the following steps:
1), during Rice Cropping, 10% bensulfuron-methyl wetting 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.
3. the composite control method of weeds in paddy field according to claim 2, is characterized in that, when spreading fertilizer over the fields 10% bensulfuron-methyl wetting powder, and control water depth 3-5cm, and keep 3-4 days.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105325224A (en) * | 2015-11-23 | 2016-02-17 | 福建省农业科学院植物保护研究所 | Comprehensive prevention and removal method for weeds in reproduced rice field |
| CN107852884A (en) * | 2017-12-04 | 2018-03-30 | 中国科学院水生生物研究所 | A kind of method for improveing acidified soil using Azotica and lifting soil fertility |
| 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 |
| 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 |
| CN113671130A (en) * | 2021-08-24 | 2021-11-19 | 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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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105325224A (en) * | 2015-11-23 | 2016-02-17 | 福建省农业科学院植物保护研究所 | Comprehensive prevention and removal method for weeds in reproduced rice field |
| 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 |
| CN107852884A (en) * | 2017-12-04 | 2018-03-30 | 中国科学院水生生物研究所 | A kind of method for improveing acidified soil using Azotica and lifting soil fertility |
| 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 |
| CN113671130A (en) * | 2021-08-24 | 2021-11-19 | 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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| CN104604605B (en) | 2017-01-25 |
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