CN101878763A - Weed killer and application method thereof - Google Patents
Weed killer and application method thereof Download PDFInfo
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- CN101878763A CN101878763A CN201010229563XA CN201010229563A CN101878763A CN 101878763 A CN101878763 A CN 101878763A CN 201010229563X A CN201010229563X A CN 201010229563XA CN 201010229563 A CN201010229563 A CN 201010229563A CN 101878763 A CN101878763 A CN 101878763A
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- weed killer
- killer herbicide
- butyl ester
- prometryn
- ipomoea cairica
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Abstract
The invention discloses a weed killer and an application method thereof. The weed killer comprises 2, 4-D butyl ester, prometryn, surfactant and water, wherein the mass ratio of the 2, 4-D butyl ester and the prometryn is between 4:1 and 2:1. The weed killer has the advantages of rapid effect, high selectivity, low impact on accompanying plants of weeds, small application amount, and can reduce the effect on the environment and save the cost.
Description
Technical field
The present invention relates to the weed killer herbicide field, be specifically related to a kind of weed killer herbicide and application process thereof of preventing and kill off Ipomoea cairica that be mainly used in.
Background technology
Ipomoea cairica (Ipomoea cairica) is the domestic important Alien Weeds in Guangdong Province.Its is grown rapidly, and breeding is fast, and the ability of climbing up by holding on to is strong, often by the effect of climbing tree crown formation lid curtain other plant is worked the mischief.Now intruded into around the ground of laying idle, railway, highway, rural roadside, the dwelling house, ground such as orchard, vegetable plot, forest, park, be wound on park amenity forest, street tree, orchard fruit tree and ecological public welfare forests border or the flower garden hedge, had a strong impact on the natural recovery process of agricultural and forestry production and wasteland vegetation, one of Guangdong five big harmful Alien Weeds (Ceng Xianfeng, 2003) have been listed in.
Since the Ipomoea cairica beginning that receives publicity, the personnel of existing many association areas have successively carried out the control research to Ipomoea cairica, also make certain gains, but facts have proved that technical methods of these control Ipomoea cairicas are still not mature enough.For example, Wang Yongfan and Hu Yujia (2000) have studied Ipomoea cairica to 2 first, 4 chlorine and 2, and two kinds of herbicidal reactions of 4-D butyl ester think that blade sprays 650 * 10
-62 first, 4 chlorine and 3600 * 10 of above concentration
-62 of above concentration, 4-D butyl ester can be killed the ripe plant of Ipomoea cairica.Their reported method only proposes the working concentration scope of weed killer herbicide, and therefore not mentioned unit are consumption also is difficult to apply.According to our experiment, 2, the 4-D butyl ester is thoroughly killed Ipomoea cairica needs the above consumption of 50mL/ mu.(patent No.: 200910041232) invention is 6: 1～3: 1 removing Ipomoea cairicas with the mass ratio of Nongdeshi and Acetochlor to people's such as Pang Junxiao publication.The medicament Main Ingredients and Appearance of the use of this invention is a Nongdeshi, and we test and find that preventing and kill off Ipomoea cairica with Nongdeshi (bensulfuron-methyl) takes effect slowlyer, and preventive effect is less than 2, the 4-D butyl ester, and this point is consistent with the conclusion that the expert of Institute of Plant Protection of academy of agricultural sciences, Guangdong Province obtains.
Commercial herbicides generally all has certain toxicity, if the consumption of weed killer herbicide is reduced, does not cut down herbicidal effect again, and this is favourable to environment, also reduces drug cost simultaneously.
Summary of the invention
The objective of the invention is to according in the existing weed killer herbicide certain toxicity being arranged, consumption does not reach herbicidal effect for a short time, and the consumption conference causes big pollution problems to environment, provides a kind of and can reduce usage amount,, the weed killer herbicide that reduce drug cost favourable to environment.
A further object of the invention provides the application process of above-mentioned weed killer herbicide.
Above-mentioned purpose of the present invention is achieved by the following technical programs:
A kind of weed killer herbicide, its component are 2,4-D butyl ester, prometryn, surfactant and water, wherein, and 2,4-D butyl ester and prometryn are 4: 1～2: 1 than (v/w).
As a kind of preferred version, in the above-mentioned weed killer herbicide, 2, the gross mass of 4-D butyl ester and prometryn and the volume ratio of water are 1: 1500～1: 2500, add the surfactant of 0.5～1g in every premium on currency.
The key component of weed killer herbicide of the present invention---2,4-D butyl ester and prometryn are the medicines of two kinds of different dosage forms, the former is a missible oil, the latter is a wetting powder, surfactant (washing powder) is a kind of pulvis simultaneously, three's meeting admixed together becomes a kind of pastel, be not so good as missible oil or pulvis and make things convenient for quantitative fetching so, therefore preferably preparation more in use, to note adding the amount of washing powder during preparation, few amazing effect, many undissolved parts can be more, the foam that produces is also many, is unfavorable for the medicament atomizing.
Weed killer herbicide of the present invention all has the removing effect to various weeds, wherein, and especially to the removing best results of Ipomoea cairica.
The application process of weed killer herbicide of the present invention is as follows: the weed killer herbicide for preparing is sprayed facing to the cauline leaf of weeds to get final product.
As a kind of preferred version, above-mentioned application process requires not have in the 24h rain after using weed killer herbicide, if rain then dispenser again.
When removing Ipomoea cairica with weed killer herbicide of the present invention, because Ipomoea cairica is a kind of perennial liane, it is extremely wide to adapt to the habitat type, and it is variant therefore to remove the used weed killer herbicide optimal dose of Ipomoea cairica in the different habitats.In general, the Ipomoea cairica in slope or the sparse woods is when dispenser, and its cauline leaf fully touches medicament easily, and dosage is on the low side; By contrast, vegetation level complexity in limit, pool or the taphrium, Ipomoea cairica is difficult to fully touch medicament during dispenser, so dosage is higher.
Compared with prior art, the present invention has following beneficial effect:
(1) two kinds of active ingredients in the weed killer herbicide of the present invention---2, the mechanism of action of 4-D butyl ester and prometryn is different, the former plays hormone and disturbs, the latter acts on photosynthetical system II blocking-up photosynthesis of plant, surfactant can improve the absorption efficiency of plant to weed killer herbicide, the weed killer herbicide that three's mixed preparing is obtained is used for management of weeds, instant effect, effective, the medicament selectivity is strong, accompanying plant influence to most of weeds is little, generally uses weed killer herbicide of the present invention one day after, and weeds can show the vertical symptom of chemical damage of blade, all withered and yellow death of leaf about one week, most rattan is also withered after 20 days;
(2) the present invention selects for use washing powder as surfactant, and washing powder is as a kind of articles for daily use, buys easily and cheap, has reduced the production cost of weed killer herbicide;
(3) usage amount of weed killer herbicide of the present invention in the weeding process compared lessly with the traditional weed killer herbicide of independent use, because weed killer herbicide all has toxicity, the reduction of usage amount can reduce toxicity, reduces the pollution to environment.
Description of drawings
Fig. 1 is 2, and 4-D butyl ester different multiples dilution is handled the variation of back Ipomoea cairica Fv/Fm;
Fig. 2 is the variation that prometryn different multiples dilution is handled back Ipomoea cairica Fv/Fm;
Fig. 3 is 2, the reveal any symptoms of 5～60 days Ipomoea cairicas after what the bensulfuron-methyl dispenser of 4-D butyl ester.
Embodiment
Further explain the present invention below in conjunction with embodiment, but embodiment does not do any type of qualification to the present invention.
The preparation of embodiment 1 weed killer herbicide
The preparation of potted plant experimental pharmacy: measure 2,4-D butyl ester missible oil 1mL, 0.5mL and 0.25ml join respectively in the water of 400mL, obtain 400 times, 800 times and dilutions 1600 times; In like manner, take by weighing prometryn pulvis 1g, 0.5g and 0.25g, join in the water of 400mL, obtain 400 times, 800 times and dilutions 1600 times.Medicament prepares, and shakes up, to the potted plant Ipomoea cairica cauline leaf spraying of one group in 7 basins.
The preparation of field trial medicament: measure 2,4-D butyl ester missible oil 0.09mL, 0.3mL and 1.5ml join respectively in the water of about 1L; Taking by weighing bensulfuron-methyl 0.18g joins in the water of 1L.It is that (consumption of 0.09mL, 0.3mL and 1.5ml is equivalent to 15mL/ mu, 50mL/ mu and 250mL/ mu respectively here for 4 square metres wild Ipomoea cairica spraying that above medicament has enclosed area to stay cord in advance respectively; 0.18g be equivalent to 30g/ mu).
The preparation of combination medicament: 0.09mL2, the washing powder of 4-D butyl ester missible oil+1g+1L water; 0.09mL2,4-D butyl ester missible oil+0.02g prometryn+1g washing powder+1L water; 0.07mL2,4-D butyl ester missible oil+0.5g prometryn+1g washing powder+1L water; 0.05mL2,4-D butyl ester missible oil+0.08g prometryn+1g washing powder+1L water; 0.03mL2,4-D butyl ester missible oil+0.10g prometryn+1g washing powder+1L water.These combination medicaments all are about 4 square metres Ipomoea cairica sample prescription spraying to area.
With 2,4-D butyl ester and two kinds of weed killer herbicide different multiples of prometryn dilution are handled potted plant Ipomoea cairica, find 2, the 4-D butyl ester more than 1600 times dilution can thoroughly kill potted plant Ipomoea cairica, and 1600 to 400 times of dilutions of prometryn can only be killed the part organ (table 1) of potted plant Ipomoea cairica.The degree of coercing that chlorophyll fluorescence index Fv/Fm reflection plant is subjected to, the plant normal range (NR) is 0.75～0.85, will significantly descend when plant is subjected to coercing Fv/Fm.1～2 day Fv/Fm significantly descends after the prometryn dispenser, reduced near 0 in 4～5 days, and 2, the 4-D butyl ester takes 2～3 days Fv/Fm and just significantly descends, and 4～5 talentes drop to 0.3～0.5 level (Fig. 1～2), and this shows prometryn than 2, and the effect of 4-D butyl ester is faster.
Table 12,4-D are decided the result that butyl ester and prometryn different multiples dilution are prevented and kill off potted plant Ipomoea cairica
Field trial finds 2, when 4-D butyl ester consumption is 15mL/ mu, just can cause Ipomoea cairica 100% leaf withered (Fig. 3) in 20～40 days after the dispenser, and deep investigation finds to still have a large amount of stem root survivals.2, the above consumption of 4-D butyl ester 50mL/ mu just can reach the desirable killing effect to the stem root.Bensulfuron-methyl (Nongdeshi) 30g/ mu consumption is killed the effect relatively poor (Fig. 3) of Ipomoea cairica.
Based on above experimental result, 2,4-D has the ability of thoroughly preventing and kill off Ipomoea cairica, and prometryn is very fast to the effect of Ipomoea cairica, and we use by two kinds of mixing that remove grass blade imagination, and it is few to reach dosage, prevents and kill off the effective purpose of Ipomoea cairica.Experiment finds 2, and 4-D butyl ester and prometryn volume and mass ratio are that to use effect with in 4: 1～2: 1 better, to behind the water by every liter of adding of water yield surfactant (washing powder) 0.5～1g.To the spraying of Ipomoea cairica cauline leaf, 7 day cause open-air Ipomoea cairica 100% leaf withered after the dispenser with this medicament, the later withered rate of stem root also reached very desirable level (more than 90%) in 20 days.
Claims (6)
1. weed killer herbicide, the component that it is characterized in that described weed killer herbicide is 2,4-D butyl ester, prometryn, surfactant and water, wherein, and 2, the ratio (v/w) of 4-D butyl ester and prometryn is 4: 1～2: 1.
2. weed killer herbicide according to claim 1 is characterized in that 2, and the gross mass of 4-D butyl ester and prometryn and the volume ratio of water are 1: 1500～1: 2500, adds the surfactant of 0.5～1g in every premium on currency.
3. weed killer herbicide according to claim 2 is characterized in that described surfactant is a washing powder.
4. weed killer herbicide according to claim 1 is characterized in that described weed killer herbicide is used to remove Ipomoea cairica.
5. according to the application process of any described weed killer herbicide of claim in the claim 1～4, it is characterized in that the cauline leaf spraying of weed killer herbicide to weeds.
6. according to the application process of the described weed killer herbicide of claim 5, it is characterized in that using behind the weed killer herbicide and rain in the 24h, then use weed killer herbicide again.
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| CN201010229563XA CN101878763A (en) | 2010-07-16 | 2010-07-16 | Weed killer and application method thereof |
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| CN201010229563XA CN101878763A (en) | 2010-07-16 | 2010-07-16 | Weed killer and application method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102150665A (en) * | 2010-12-15 | 2011-08-17 | 陕西韦尔奇作物保护有限公司 | Herbicidal composition containing cyhalofop-butyl and triazines |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1154795A (en) * | 1996-01-18 | 1997-07-23 | 化学工业部沈阳化工研究院 | Weedicide mixture of sulfonylurea |
| WO2005014777A2 (en) * | 2002-10-16 | 2005-02-17 | Board Of Regents, The University Of Texas System | Methods and compositions for increasing the efficacy of biologically-active ingredients |
-
2010
- 2010-07-16 CN CN201010229563XA patent/CN101878763A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1154795A (en) * | 1996-01-18 | 1997-07-23 | 化学工业部沈阳化工研究院 | Weedicide mixture of sulfonylurea |
| WO2005014777A2 (en) * | 2002-10-16 | 2005-02-17 | Board Of Regents, The University Of Texas System | Methods and compositions for increasing the efficacy of biologically-active ingredients |
Non-Patent Citations (2)
| Title |
|---|
| 尚文成: "扑甲混配防除麦田鹅不食等杂草初探", 《杂草科学》, no. 2, 31 December 1988 (1988-12-31), pages 27 - 28 * |
| 徐世友: "2_4_D丁酯防除大豆田杂草试验", 《农药》, vol. 37, no. 10, 31 December 1998 (1998-12-31), pages 39 - 40 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102150665A (en) * | 2010-12-15 | 2011-08-17 | 陕西韦尔奇作物保护有限公司 | Herbicidal composition containing cyhalofop-butyl and triazines |
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Application publication date: 20101110 |