Method of fighting undesirable plants

专利摘要:

公开号:SU1223827A3
申请号:SU833643052
申请日:1983-08-30
公开日:1986-04-07
发明作者:Мейер Вилли；Райнер Дитер；Оэртле Конрад；Шуртер Рольф
申请人:Циба-Гейги Аг (Фирма)；
IPC主号:

专利说明:

1223827
FIELD OF THE INVENTION The invention relates to chemical methods of controlling the weed and the lack of efficacy of the method.
Table 1 shows the proposed sulfonylurea derivatives
body vegetation, in particular to methods based on the use of sulfonylurea derivatives.
5 illustrating the effectiveness of the method.
Also
Also



2- (3 Cyanopropene 1-yl)
2- (3-Acetyloxypropen-1-yl)
2- (3-Acetyloxypropen-1-yl)
2- (1,2-Dibrompropro-1 -1-yl)
2- (1,2-Dibromoprop-1-yl)
2- (2 - methoxycarbonylvinyl)
2- (2 - methoxycarbonylvinyl)
2- (2-Methoxycar5s-nilvinyl)
2- (2-Ethoxycarbonyl-propen-1-yl)
5 illustrating the effectiveness of the method.
Table 1
Bi
3L.oJC
o) -Zo2-ns-mn- (I N-KY

-N-CHMmethyl -CHDifluorome-CH-tox
Methoxy Methoxy
-sn2, 2,2-tri- -N- fluoroethoxy
Methoxy-CH-N-HC-
N-CH-N
-CH-SN-N-SN Continued Table. one
Optiy plant

Zheru- Zvezd- Pslevi- Chloris ha patka tsa
I
37 38
five
2
PRI mme R 2. Determination of selectivity during pre-emergence treatment.
The conditions of the experiment and the scale of assessment of herbicidal activity are similar to example 1. The difference is in a larger set of weeds and in the presence of cultivated plants. The results of the experiments are presented in the table.
Table 3
Experimental plant
The activity of compound 1 at the rate of its consumption
Maize Wheat Foxtail Raw
PRI me R 3. Post-harvest processing.
: Test plants grown in
0.125 kg / ha 0.06 kg / ha greenhouse conditions up to a stage of 4-6 leaves
. treated with aqueous dispersions mi
substances and continue to grow them in a greenhouse for 1-5 days. Thereafter, 35 evaluation of the herbicidal activity is conducted by
the scale specified in example 1. The results of the experiments at the consumption rate of active substances 0.5 kg / ha are presented in table. 4. 40
Table 4
9 4 4
Compound
.Ovsyug. Shchetnik Chaff Nightshade, Mustard Mokritsa i Beans
.JiL.
Dose 4 kg / ha,

Activity of compound 1 at its consumption rate
0.125 kg / ha | 0.06 kg / ha
ten
H
15
20
Scale Tinpowder Durishnik Mar Ypome Mustard Bedstraw Violet
5 2 2 2 2 2 2 2
5 2 2 2 3
. 2 2 2
25
9 4 4
Experimental plants
1223827
PRI me R 4. Determination of selectivity in post-harvest treatment,
 Experiments were carried out under conditions of example 3, but with a large set of experimental plants and in the presence of cultivated plants. The rating scale is the same as in example 1. The results of the experiments are presented in tablc 5,
Table 5

Activity of compound 1 at its consumption rate
0.25 kg / ha | about, 125 kg / ha
Wheat
Maize
Dry rice
Syt
Abomination
Cockcoat
Mar
Mustard
Table 6 Active, substance and consumption rate, kg / ha
Experimental plants
0.125 (0.06 I 0.03: 0.008
Wheat99 999 99889
Maize89 99-5 68678
Listohvost3457334789
Cheshuehvostnik55 687 789-99
Syt34585 58899
Kanatnik22 2.72 2 3 999
Durnishnik22 3544577.7
Mar22222 22999
10 Continuation of table 5

Activity of compound 1 at its consumption rate
0.25 kg / ha 0.125 kg / ha
Bedstraw
five
to
Violet
Froze Comparative efficacy with known herbicides.
Experimental conditions are similar to examples 1 (pre-emergence tillage after sowing seeds of experimental plants and evaluating results after 3 weeks) and 3 (processing plants at the 4-6 leaf stage). The rating scale is similar to Example 1.
A known herbicidally active compound is used for comparison. formulas.
ABOUT
Joy-so2 No. C H- O; N (A)
Lssnz
T1
The results of the experiments are presented in table. 6 and 7.
29
0.125; 0.0610, 12510.06, 0.03
......

权利要求:
Claims (1)
[1]
METHOD FOR COMBATING UNWANTED VEGETATION by treating it or the soil on which it grows with sulfonylurea derivatives, characterized in that, in order to increase the efficiency of the method, a compound of the general formula β * b0, -fc-da- is used as sulfonylurea derivatives (CUT where
R _a
- hydrogen or methyl;
- 1,2-dibromovinyl, 1,2-dibromopropen-1-yl, 2-ethoxycarbonylpropen-1-yl, 2-trifluoromethylpropen-1-yl or a group - CH = CH-Rj in which Rj is bromo, trifluoromethyl, cyano , cyanomethyl, hydroxylmethyl, acetyl, acetoxymethyl, 1-acetoxyethyl, methoxycarbonyl, ethoxycarbonyl, 1,1-difluoroethyl, perfluoropropyl, perfluorohex. forces (N-trifluoroacetyl-N-ethyl) aminomethyl *, 'X - chlorine, methyl, methoxy, difluoromethoxy,
У - methyl, methoxy, difluorome-, toxins, 2,2,2-trifluoroethoxy, Е - N - or -CH-, in an amount of 0.008-5 kg / ha.
SU. „. 1223827

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法律状态:

优先权:

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