CN1197459C - 45% gucaojing wettable powder - Google Patents

Abstract

The present invention relates to medicine for controlling and removing weeds in a millet yield, which is formed by mixing 50% of propazine wettable powder and 25% of simetryn. In addition, the present invention is added with sodium dodecylbenzene sulfonate, sub-solid, white carbon black and diatomite, and can effectively remove and control unifacial leaf weeds of crab grass, green bristlegrass herbs, etc. in a millet field, and dicotyledon weeds of parslane herbs, redroot pigweeds, etc. Various weeds can be controlled through disposable medicine.

Description

The clean wetting powder of 45% millet straw

Technical field

The invention belongs to Herbicidal combinations, particularly the weed control medicine in the paddy field

Background technology

It is unsecured to plant other crops in the place of arid, and millet is than drought resisting, and plantation millet is guaranteed, but summer sowing millet farmland running to weeds is the most serious, and the weeding of paddy field is not only taken a lot of work but also require great effort, and labour intensity is big, and difficulty is big.The millet chemical weed control is a blank in China, and millet is all compared sensitivity to many weed killer herbicides, and tolerance is poor, and a lot of weed killer herbicides are not crossed safe pass, and from the at present existing all inapplicable millet of weed killer herbicide, the weed killer herbicide difficulty that the suitable millet of screening is used is big.

Summary of the invention

The present invention seeks to develop the weed killer herbicide in a kind of suitable paddy field.

The propazine chemical name is a 2-chloro-4,6-two (the different third ammonia alkane)-1,3,5, and-triazine, its structural formula:

Its molecular formula: C ₉H ₁₆CIN ₅

Through test millet propazine (Propazine) there is stronger drug resistance.

The chemical name of symetryne is a 2-formyl-4,9-two (ethylamino)-1,3, and 5 triazines, its structural formula:

Molecular formula: C ₅H ₁₅N ₅S

Symetryne (Simetryn) has higher activity of weeding, and millet has certain drug resistance to this medicine.

The present invention is two kinds of medicaments be mixed (percentage by weights)

93% propazine raw material 38.80～43.11

97% symetryne raw material 1.89～6.12

Neopelex 5

Inferior solid 20

White carbon black 5

The diatomite surplus

The mixed agent of 50% propazine wetting powder and 5 different proportionings (percentage of effective ingredient) of 25% symetryne wetting powder.

	Be mixed 1	Be mixed 2	Be mixed 3	Be mixed 4	Be mixed 5
						Propazine	84.4	88.9	91.3	93.6	95.8
Symetryne	13.6	11.1	8.7	6.4	4.2

1, in five mixed ratio measuring, after propazine and symetryne are mixed, to two kinds of weeds: the equal synergy of the activity of weeding of grass family-lady's-grass (Crabgrass), Amaranthaceae-Amaranthus retroflexus (Amaranth) and summation action (showing 1-4).

The activity of weeding of table 1. pair lady's-grass is (with ED ₉₀The value meter)

Weed killer herbicide	Y＝a＝bx			With ED 90The value meter
								a	b	R		g/667m 2	Vivacity	The co-toxicity coefficient
	Propazine	2.36	1.79	0.96		156.9	100.0								-
Symetryne								3.39	1.69	0.98		51.7	303.5	-
	1# is mixed	3.22	1.54	0.97		98.0	160.1								125.4
2# is mixed								2.97	1.61	0.99		113.4	138.4	112.9
	3# is mixed	2.95	1.58	0.99		125.0	125.5								106.6
4# is mixed								2.98	1.56	0.99		130.6	120.1	106.3
	5# is mixed	2.92	1.56	0.99		137.8	113.9								104.9

The activity of weeding of table 2. pair lady's-grass is (with ED ₉₀The value meter)

Weed killer herbicide	Y＝a＝bx			With ED 90The value meter
							a	b	R	g/667m 2	Vivacity	The co-toxicity coefficient
	Propazine	2.36	1.79	0.96	30.1	100.0							-
Symetryne							3.39	1.69	0.98	9.0	334.4	-
	1# is mixed	3.22	1.54	0.97	14.4	209.0							158.5
2# is mixed							2.97	1.61	0.99	18.2	165.4	131.3
	3# is mixed	2.95	1.58	0.99	19.4	155.2							128.9
4# is mixed							2.98	1.56	0.99	19.7	152.8	132.9
	5# is mixed	2.92	1.56	0.99	21.1	142.7							129.7

The activity of weeding of table 3. pair Amaranthus retroflexus is (with ED ₉₀The value meter)

Weed killer herbicide	Y＝a＝bx			With ED 90The value meter
							a	b	R	g/667m 2	Vivacity	The co-toxicity coefficient
	Propazine	3.14	1.59	0.99	93.8	100.0							-
Symetryne							4.13	1.38	0.97	36.0	260.6	-
	1# is mixed	3.73	1.47	0.97	54.5	172.1							141.3
2# is mixed							3.68	1.46	0.98	59.5	157.6	133.8
	3# is mixed	3.73	1.39	0.98	69.4	135.2							118.6
4# is mixed							3.43	1.53	0.98	72.5	129.4	117.3
	5# is mixed	3.68	1.37	0.99	78.4	119.6							112.1

The activity of weeding of table 4. pair Amaranthus retroflexus is (with ED ₉₀The value meter)

Weed killer herbicide	Y＝a＝bx			With ED 90The value meter
							a	b	r	g/667m 2	Vivacity	The co-toxicity coefficient
	Propazine	3.14	1.59	0.99	14.7	100.0							-
Symetryne							4.13	1.38	0.97	4.3	341.9	-
	1# is mixed	3.73	1.47	0.97	7.3	201.4							151.5
2# is mixed							3.68	1.46	0.98	7.9	186.1	146.7
	3# is mixed	3.73	1.39	0.98	8.3	177.1							146.4
4# is mixed							3.43	1.53	0.98	10.6	138.7	120.1
	5# is mixed	3.68	1.37	0.99	9.1	161.5							146.6

2, with ED ₅₀The co-toxicity coefficient value that value is calculated compares ED ₉₀The co-toxicity coefficient value height that value is calculated.

3, with ED ₉₀When value was calculated, its synergistic effect was relevant with the content of symetryne, and the 1# and the 2# proportioning that is mixed are best to be mixed.

4, from activity of weeding with to the combined factors analyses such as safety of millet, selecting mixed agent 2# is best proportioning, and its proportioning is:

Propazine: symetryne=88.9: 11.1

Advantage of the present invention is remove to mix that to control millet field weed effect remarkable, and every mu of usefulness 100～200 grams are are comprehensively wiped out and treated insect pests and plant diseases effect 84.9%～97.1%, increase herbicidal effect with dose and improve, and it is best that mu restrains effects with 200.The 45%I millet straw kills grass only and has composed, and can efficiently wipe out and treat insect pests and plant diseases monocotyledon weeds such as lady's-grass, green foxtail, can wipe out and treat insect pests and plant diseases broadleaf weeds such as kitchen garden, Amaranthus retroflexus again, and disposable dispenser prevents and treats multiple weeds.

Table 5 45% millet straw is only except that 20 days herbicidal effects after the dispenser of millet field weed

The clean wetting powder of table 6 45% millet straw is prevented and kill off 40 days herbicidal effects after the dispenser of millet field weed

Embodiment:

Embodiment one: with 430 kilograms of 93% propazine raw materials, 51.5 kilograms of 97% symetryne raw materials, adds 50 kilograms of sodium dodecyl benzenylsulfonates of infiltration, adds inferior solid 200 kilograms of diffusant, and 50 kilograms of white carbons, 218.5 kilograms in diatomite, it is clean to make one ton of 45% millet straw.

Embodiment two: with 537.63 kilograms of 93% propazine raw materials, add 10 kilograms of sodium dodecyl benzenylsulfonates, inferior solid 40 kilograms, 10 kilograms of white carbons, 402.37 kilograms in diatomite, make 50% propazine wetting powder, use 257.73 kilograms of 97% symetryne raw materials again, 10 kilograms of sodium dodecyl benzenylsulfonates, inferior solid 40 kilograms, 10 kilograms of white carbons, 682.27 kilograms in diatomite, make 25% symetryne wetting powder, and then 50% propazine adds 10 kilograms of 25% symetrynes for 90 kilograms and makes clean 100 kilograms of 45% millet straw.

Embodiment three: with 88.9 kilograms of 50% propazines, add 11.1 kilograms of 25% symetrynes, make clean 100 kilograms of 45% millet straw.

Claims (1)

1, the clean wetting powder of 45% millet straw is characterized in that by following material formulatedly, and its percentage by weight is:

93% propazine raw material 38.80～43.11

97% symetryne 1.89～6.12

Neopelex 5

Inferior solid 20

White carbon black 5

The diatomite surplus.