Control Efficacy of 7 Pre-emergence Herbicides Against Weeds in Winter Wheat Field

doi:10.11924/j.issn.1000-6850.casb2021-0899

Abstract

Abstract:

In order to clarify the control efficacy of 7 pre-emergence herbicides against the annual weeds and their safety to winter wheat, the differences of control efficacy and safety of the herbicides between two modes of watering before and after herbicide application were compared in field according to Pesticide-Guidelines for the Field Efficacy Trails. The results showed that the total control efficacy under the watering mode after herbicide application was better than that under watering before herbicide application. Under the watering mode after herbicide application, the reduction in both weed number and biomass of Galium aparine, Descurainia Sophia and Alopecurus aequalis caused by flufenacet were higher than 95% at 150 days after treatment (DAT). Oxadiazon at 720 g active ingredient caused over 95% reduction in biomass of D. Sophia and A. aequalis, and over 85% reduction in biomass of G. aparine at 150 DAT. Based on the comprehensive analysis of safety, control efficacy and herbicide reduction, it is recommended to use flufenacet and oxadiazon for pre-emergence application in wheat field, which have ideal control efficacy with application once.

Key words: pre-emergence herbicide, winter wheat, weeds, control efficacy, safety

CLC Number:

WU Cuixia, XU Jiali, SONG Min, YANG Lina, ZHANG Tiantian, MA Chong. Control Efficacy of 7 Pre-emergence Herbicides Against Weeds in Winter Wheat Field[J]. Chinese Agricultural Science Bulletin, 2022, 38(21): 105-111.

Figures/Tables 7

References 19

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处理	药剂	有效量/(g/hm²)	猪殃殃	播娘蒿	看麦娘	杂草总体
1	60%氟噻草胺水分散粒剂	720.00	42.24 a	85.14 ab	100.00 a	45.70 ab
2	60%氟噻草胺水分散粒剂	1080.00	44.07 a	90.55 ab	100.00 a	47.90 a
3	50%异丙隆可湿性粉剂	1500.00	1.28 c	65.08 b	81.90 abc	8.60 d
4	50%异丙隆可湿性粉剂	2250.00	9.76 bc	100.00 a	100.00 a	17.74 bcd
5	25%噻吩磺隆可湿性粉剂	37.50	10.81 bc	90.55 ab	35.95 d	16.41 cd
6	25%噻吩磺隆可湿性粉剂	45.00	29.79 ab	90.69 ab	46.97 cd	34.08 abc
7	900g/L乙草胺乳油	1200.00	25.53 ab	89.18 ab	91.67 ab	30.88abcd
8	900g/L乙草胺乳油	1800.00	32.17 ab	94.59 ab	93.33 ab	37.53 abc
9	25%噁草酮乳油	480.00	27.56 ab	86.51 ab	81.90 abc	32.46abcd
10	25%噁草酮乳油	720.00	36.67 ab	100.00 a	86.67 ab	41.02 abc
11	33%二甲戊灵乳油	990.00	40.87 ab	78.57 ab	70.48 abcd	43.65 abc
12	33%二甲戊灵乳油	1485.00	46.38 a	80.95 ab	93.33 ab	50.23 a
13	70%氟唑磺隆水分散粒剂	42.00	21.94 abc	94.44 b	63.81 bcd	27.35abcd
14	70%氟唑磺隆水分散粒剂	63.00	48.26 a	100.00 a	100.00 a	52.82 a

处理	药剂	有效量/(g/hm²)	猪殃殃	播娘蒿	看麦娘	杂草总体
1	60%氟噻草胺水分散粒剂	720.00	42.24 a	85.14 ab	100.00 a	45.70 ab
2	60%氟噻草胺水分散粒剂	1080.00	44.07 a	90.55 ab	100.00 a	47.90 a
3	50%异丙隆可湿性粉剂	1500.00	1.28 c	65.08 b	81.90 abc	8.60 d
4	50%异丙隆可湿性粉剂	2250.00	9.76 bc	100.00 a	100.00 a	17.74 bcd
5	25%噻吩磺隆可湿性粉剂	37.50	10.81 bc	90.55 ab	35.95 d	16.41 cd
6	25%噻吩磺隆可湿性粉剂	45.00	29.79 ab	90.69 ab	46.97 cd	34.08 abc
7	900g/L乙草胺乳油	1200.00	25.53 ab	89.18 ab	91.67 ab	30.88abcd
8	900g/L乙草胺乳油	1800.00	32.17 ab	94.59 ab	93.33 ab	37.53 abc
9	25%噁草酮乳油	480.00	27.56 ab	86.51 ab	81.90 abc	32.46abcd
10	25%噁草酮乳油	720.00	36.67 ab	100.00 a	86.67 ab	41.02 abc
11	33%二甲戊灵乳油	990.00	40.87 ab	78.57 ab	70.48 abcd	43.65 abc
12	33%二甲戊灵乳油	1485.00	46.38 a	80.95 ab	93.33 ab	50.23 a
13	70%氟唑磺隆水分散粒剂	42.00	21.94 abc	94.44 b	63.81 bcd	27.35abcd
14	70%氟唑磺隆水分散粒剂	63.00	48.26 a	100.00 a	100.00 a	52.82 a

处理	药剂	有效量/(g/hm²)	猪殃殃	播娘蒿	看麦娘	杂草总体
1	60%氟噻草胺水分散粒剂	720.00	98.12 ab	51.40 cd	71.73 a	93.05 ab
2	60%氟噻草胺水分散粒剂	1080.00	100.00 a	65.37 bcd	75.86 a	95.53 a
3	50%异丙隆可湿性粉剂	1500.00	1.83 h	71.97 bcd	49.09 a	9.97 h
4	50%异丙隆可湿性粉剂	2250.00	5.26gh	96.41 a	77.01 a	16.25 gf
5	25%噻吩磺隆可湿性粉剂	37.50	19.82 fgh	49.25 d	30.21 a	23.64 fgh
6	25%噻吩磺隆可湿性粉剂	45.00	23.23 fgh	75.53abcd	34.82 a	29.47 fgh
7	900g/L乙草胺乳油	1200.00	71.97 cd	57.55 bcd	49.01 a	70.57cd
8	900g/L乙草胺乳油	1800.00	81.09 bc	79.71abcd	73.74 a	80.81bc
9	25%噁草酮乳油	480.00	29.58def	50.86 cd	75.18 a	34.40fgh
10	25%噁草酮乳油	720.00	33.00ef	73.94 bcd	78.79 a	39.77efD
11	33%二甲戊灵乳油	990.00	43.57def	69.25 bcd	67.76 a	47.74def
12	33%二甲戊灵乳油	1485.00	55.46 cde	86.38 ab	68.38 a	59.66cde
13	70%氟唑磺隆水分散粒剂	42.00	26.89 efg	82.75 abc	58.62 a	35.43efg
14	70%氟唑磺隆水分散粒剂	63.00	30.02efg	89.53 ab	85.06 a	37.65efg

处理	药剂	有效量/(g/hm²)	猪殃殃	播娘蒿	看麦娘	杂草总体
1	60%氟噻草胺水分散粒剂	720.00	98.12 ab	51.40 cd	71.73 a	93.05 ab
2	60%氟噻草胺水分散粒剂	1080.00	100.00 a	65.37 bcd	75.86 a	95.53 a
3	50%异丙隆可湿性粉剂	1500.00	1.83 h	71.97 bcd	49.09 a	9.97 h
4	50%异丙隆可湿性粉剂	2250.00	5.26gh	96.41 a	77.01 a	16.25 gf
5	25%噻吩磺隆可湿性粉剂	37.50	19.82 fgh	49.25 d	30.21 a	23.64 fgh
6	25%噻吩磺隆可湿性粉剂	45.00	23.23 fgh	75.53abcd	34.82 a	29.47 fgh
7	900g/L乙草胺乳油	1200.00	71.97 cd	57.55 bcd	49.01 a	70.57cd
8	900g/L乙草胺乳油	1800.00	81.09 bc	79.71abcd	73.74 a	80.81bc
9	25%噁草酮乳油	480.00	29.58def	50.86 cd	75.18 a	34.40fgh
10	25%噁草酮乳油	720.00	33.00ef	73.94 bcd	78.79 a	39.77efD
11	33%二甲戊灵乳油	990.00	43.57def	69.25 bcd	67.76 a	47.74def
12	33%二甲戊灵乳油	1485.00	55.46 cde	86.38 ab	68.38 a	59.66cde
13	70%氟唑磺隆水分散粒剂	42.00	26.89 efg	82.75 abc	58.62 a	35.43efg
14	70%氟唑磺隆水分散粒剂	63.00	30.02efg	89.53 ab	85.06 a	37.65efg

处理	药剂	有效量/(g/hm²)	猪殃殃	播娘蒿	看麦娘	杂草总体
1	60%氟噻草胺水分散粒剂	720.00	98.68 a	68.35 cd	80.43 a	95.29 a
2	60%氟噻草胺水分散粒剂	1080.00	100.00 a	79.52 abcd	85.53 a	97.14 a
3	50%异丙隆可湿性粉剂	1500.00	23.01 h	81.77 abcd	55.11 a	30.21 h
4	50%异丙隆可湿性粉剂	2250.00	30.61 gh	97.55 a	81.37 a	38.78 gh
5	25%噻吩磺隆可湿性粉剂	37.50	41.83 fg	67.04 d	45.09 a	46.09 fg
6	25%噻吩磺隆可湿性粉剂	45.00	48.20 efgD	83.33 abcd	56.29 a	54.03 ef
7	900g/L乙草胺乳油	1200.00	77.80 bc	71.81 bcd	58.21 a	77.84 bc
8	900g/L乙草胺乳油	1800.00	85.52 b	88.28 abcd	82.66 a	85.71 b
9	25%噁草酮乳油	480.00	53.09 def	62.54 d	83.89 a	56.77 def
10	25%噁草酮乳油	720.00	60.41 de	83.72 abcd	89.98 a	64.30 de
11	33%二甲戊灵乳油	990.00	65.73cdeB	79.97 bcd	72.04 a	68.35 cde
12	33%二甲戊灵乳油	1485.00	67.06 cd	91.36 abc	78.35 a	70.89 cd
13	70%氟唑磺隆水分散粒剂	42.00	40.13 fg	88.70 abcd	67.24 a	47.77 fg
14	70%氟唑磺隆水分散粒剂	63.00	52.34 def	92.93 ab	90.49 a	58.04