Væselhale - Resultater 2005

Demonstrationsforsøgene vedrørende bekæmpelse af væselhale blev afsluttet i foråret 2005, og dette sidste års forsøg viste endnu en gang, at det er vanskeligt at opnå en meget høj effekt over for denne ukrudtsart.

Nedenfor ses tabeller fra 2 forsøg i 2004-2005

Trial No. 04102-01

Weed Code					VLPBR		VLPBR		VLPBR		VLPBR		VLPBR		VLPBR
Part Rated					PLANT P		PLANT P		PLANT P		PLANT P		PLANT P		PLANT P
Rating Data Type					EFFICACY		EFFICACY		EFFICACY		EFFICACY		EFFICACY		EFFICACY
Rating Unit					%UNCK		%UNCK		%UNCK		%UNCK		%UNCK		%UNCK
Rating Date					18-09-03		01-10-03		15-10-03		14-11-03		23-04-04		07-06-04
Footnote Number					1		2		3		4		5		6
Trt-Eval Interval					14 DA-A		27 DA-A		41 DA-A		71 DA-A		232 DA-A		277 DA-A
# Subsamples, Dec.					1 0		1 0		1 0		1 0		1 0
Trt	Treatment		Rate	Grow
No.	Name	Rate	Unit	Stg
1	Stomp	2,0	l/ha	væselhale 07-10	80	a	80	a	80	a	61	abc	66	bcd	38,8	cd
	1/2 N
2	Stomp	4,0	l/ha	væselhale 07-10	85	a	95	a	97	a	91	a	91	a	72,5	ab
	1/1 N
3	Stomp	2,0	l/ha	væselhale 11-13			34	c	55	b	39	cd	25	e	7,5	e
	1/2 N
4	Stomp	4,0	l/ha	væselhale 11-13			49	bc	89	a	74	ab	84	ab	52,5	bc
	1/1 N
5	Stomp	2,0	l/ha	slutning sep.					44	b	63	abc	71	abc	45,0	cd
	1/2 N
6	Stomp	4,0	l/ha	slutning sep.					40	b	60	abc	94	a	71,3	ab
	1/1 N
7	Stomp	1,0	l/ha	væselhale 07-10	60	b	61	b	48	b	45	bcd	59	cd	26,3	de
	Stomp	1,0	l/ha	10-14 dage senere
	1/2 N
8	Stomp	2,0	l/ha	væselhale 07-10	70	ab	84	a	90	a	70	abc	89	ab	58,8	bc
	Stomp	2,0	l/ha	10-14 dage senere
	1/1 N
9	Stomp	1,0	l/ha	væselhale 11-13			30	c	55	b	41	bcd	50	d	17,5	e
	Stomp	1,0	l/ha	10-14 dage senere
	1/2 N
10	Stomp	2,0	l/ha	væselhale 11-13			33	c	60	b	63	abc	79	ab	47,5	cd
	Stomp	2,0	l/ha	10-14 dage senere
	1/1 N
11	Untreated				1	c	2	d	4	c	18	d	83	ab	90,0	a
12	Untreated				1	c	2	d	5	c	18	d	80	ab	90,0	a
CV					17,43		24,64		22,85		27,11		14,26		21,59
Replicate F					2,612		1,223		0,581		0,505		1,701		3,179
Replicate Prob(F)					0,0896		0,3203		0,6314		0,6812		0,1858		0,0367
Treatment F					79,796		32,207		23,293		9,363		14,897		22,980
Treatment Prob(F)					0,0001		0,0001		0,0001		0,0001		0,0001		0,0001

Means followed by same letter do not significantly differ (P=.05, Student-Newman-Keuls)

Weed Code
VLPBR = Vulpia Bromoides / Væselhale

Part Rated
PLANT = Plant / Plant biomass
P = Pest is Part Rated

Rating Data Type
EFFICACY = Efficacy on weed / Virkning på ukrudt

Rating Unit
%UNCK = Percent Efficacy compared to untreated. Untreated_%Cover

Trial No. 05102-01

Weed Code					VLPBR		VLPBR		VLPBR		VLPBR		VLPBR
Part Rated					PLANT P		PLANT P		PLANT P		PLANT P		PLANT P
Rating Data Type					EFFICACY		EFFICACY		EFFICACY		EFFICACY		EFFICACY
Rating Unit					%UNCK		%UNCK		%UNCK		%UNCK		%UNCK
Rating Date					07-09-04		23-09-04		08-10-04		22-10-04		25-11-04
Footnote Number					1		2		3		4		5
Trt-Eval Interval					18 DA-A		34 DA-A		49 DA-A		63 DA-A		97 DA-A
# Subsamples, Dec.					1 0		1 0		1 0		1 0		1 0
Trt	Treatment		Rate	Grow
No.	Name	Rate	Unit	Stg
1	Stomp	2,0	l/ha	væselhale 07-10	81	ab	91	a	80	bcd	71	ab	69	c
	1/2 N
2	Stomp	4,0	l/ha	væselhale 07-10	88	a	97	a	97	a	93	a	91	ab
	1/1 N
3	Stomp	2,0	l/ha	væselhale 11-13			50	b	73	cd	86	ab	78	bc
	1/2 N
4	Stomp	4,0	l/ha	væselhale 11-13			59	b	83	bc	88	ab	88	ab
	1/1 N
5	Stomp	2,0	l/ha	Beg. okt.							35	c	51	d
	1/2 N
6	Stomp	4,0	l/ha	Beg. okt.							36	c	56	d
	1/1 N
7	Stomp	1,0	l/ha	væselhale 07-10	61	b	79	a	79	bcd	83	ab	79	abc
	Stomp	1,0	l/ha	10-14 dage senere
	1/2 N
8	Stomp	2,0	l/ha	væselhale 07-10	76	ab	95	a	93	ab	94	a	93	a
	Stomp	2,0	l/ha	10-14 dage senere
	1/1 N
9	Stomp	1,0	l/ha	væselhale 11-13			20	c	64	d	65	b	71	c
	Stomp	1,0	l/ha	10-14 dage senere
	1/2 N
10	Stomp	2,0	l/ha	væselhale 11-13			46	b	80	bcd	87	ab	90	ab
	Stomp	2,0	l/ha	10-14 dage senere
	1/1 N
11	Untreated				1	c	3	c	16	e	19	c	20	e
12	Untreated				1	c	2	c	15	e	16	c	19	e
CV					21,29		19,97		11,73		16,54		10,15
Replicate F					0,380		1,557		3,121		1,154		0,222
Replicate Prob(F)					0,7687		0,2226		0,0424		0,3421		0,8807
Treatment F					53,415		45,824		53,401		30,924		57,877
Treatment Prob(F)					0,0001		0,0001		0,0001		0,0001		0,0001