2种不同浓度除草剂单剂和复配剂对油菜田阔叶草防治效果的影响

doi:10.16178/j.issn.0528-9017.20230962

摘要/Abstract

摘要：

为筛选对江苏省直播油菜田杂草高效安全的化学除草剂,本试验以50%草除灵、30%氨氯·二氯吡2种除草剂单剂及其复配剂对油菜田苗期杂草进行茎叶喷雾处理,对比药后防除效果。结果表明:对以小苜蓿、野萝卜、猪殃殃等为主的油菜田进行阔叶草茎叶防除时,667 m²最佳药剂处理为50%草除灵悬浮剂30 mL+30%氨氯·二氯吡水剂30 mL。667 m² 50%草除灵悬浮剂30 mL+30%氨氯·二氯吡水剂30 mL处理在药后14 d对阔叶杂草的株防治效果为85.73%,显著优于667 m² 50%草除灵60 mL处理,在药后105 d对阔叶杂草的株防治效果和鲜重防治效果分别为96.82%和96.46%,株防治效果极显著优于667 m² 30%氨氯·二氯吡50 mL和50%草除灵60、80 mL处理,鲜重防治效果显著优于667 m² 30%氨氯·二氯吡50 mL处理,极显著优于667 m² 50%草除灵60、80 mL处理。

关键词: 油菜, 除草剂, 50%草除灵, 30%氨氯·二氯吡, 防除效果, 阔叶草

Abstract:

In order to screen the efficient and safe chemical herbicides for weeds in direct seeding rape field in Jiangsu Province, 50% chlorchloride, 30% ammonia·dichloropyridine and their compounds were sprayed on the stem and leaves of weeds at the seedling stage of rape field, and the control effects after the spraying were compared. The results showed that the optimal treatment was 30 mL of 50% chlorchloride suspension and 30 mL of 30% ammonia·dichloropyridine for 667 m² to control Medicago minima, Phytolacca acinosa Roxb. and Galium spurium. The plant control efficacy of 30 mL of 50% chlorchloride suspension and 30 mL of 30% ammonia·dichloropyridine for 667 m² on broad-leaved weeds was 85.73% 14 days after spraying, which was significantly better than that of 60 mL of 50% chlorchloride suspension for 667 m². The plant and fresh weight control efficacy of optimal treatment of 105 days after spraying were 96.82% and 96.46%, respectively, and the plant control effect was significantly better than that of 50 mL 30% ammonia·dichloropyrimida, 60 and 80 mL 50% chlorchloride suspension. The fresh weight control effect of 105 days after spraying was significantly better than that of 50 mL 30% ammonia·dichloropyrimida, and very significantly better than that of 60 and 80 mL 50% chloropyridin treatment.

Key words: rape, herbicide, 50% chlorchloride, 30% ammonia·dichloropyrimida, control effect, broad-leaved weeds

中图分类号:

S482.4

黄倩. 2种不同浓度除草剂单剂和复配剂对油菜田阔叶草防治效果的影响[J]. 浙江农业科学, 2025, 66(1): 158-162.

HUANG Qian. Control effects of different concentrations of two herbicides, single agent and compound agent on broad-leaved weeds in rapeseed field[J]. Journal of Zhejiang Agricultural Sciences, 2025, 66(1): 158-162.

图/表 3

参考文献 19

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药剂处理	阔叶杂草
药剂处理	药前株数	药后株数	株防治效果/%
667 m² 50%草除灵悬浮剂40 mL+30%氨氯·二氯吡水剂40 mL	53.67	18.00	75.51 a A
667 m² 50%草除灵悬浮剂30 mL+30%氨氯·二氯吡水剂30 mL	52.67	13.33	85.73 a A
667 m² 30%氨氯·二氯吡水剂60 mL	44.67	11.67	85.19 a A
667 m² 30%氨氯·二氯吡水剂50 mL	54.67	36.33	63.21 a AB
667 m² 50%草除灵悬浮剂80 mL	82.67	71.33	49.73 ab AB
667 m² 50%草除灵悬浮剂60 mL	70.67	83.00	12.97 b B
对照	93.33	141.33	0

药剂处理	阔叶杂草
药剂处理	药前株数	药后株数	株防治效果/%
667 m² 50%草除灵悬浮剂40 mL+30%氨氯·二氯吡水剂40 mL	53.67	18.00	75.51 a A
667 m² 50%草除灵悬浮剂30 mL+30%氨氯·二氯吡水剂30 mL	52.67	13.33	85.73 a A
667 m² 30%氨氯·二氯吡水剂60 mL	44.67	11.67	85.19 a A
667 m² 30%氨氯·二氯吡水剂50 mL	54.67	36.33	63.21 a AB
667 m² 50%草除灵悬浮剂80 mL	82.67	71.33	49.73 ab AB
667 m² 50%草除灵悬浮剂60 mL	70.67	83.00	12.97 b B
对照	93.33	141.33	0

处理	阔叶杂草
处理	药前株数	药后株数	株防治效果/%	药后鲜重/g	鲜重防治效果/%
667 m² 50%草除灵悬浮剂40 mL+30%氨氯·二氯吡水剂40 mL	53.67	8.00	93.31 a AB	10.67	92.26 ab A
667 m² 50%草除灵悬浮剂30 mL+30%氨氯·二氯吡水剂30 mL	52.67	5.33	96.82 a A	5.00	96.46 a A
667 m² 30%氨氯·二氯吡水剂60 mL	44.67	21.67	80.60 a AB	9.61	93.11 ab A
667 m² 30%氨氯·二氯吡水剂50 mL	54.67	108.00	15.74 b C	38.92	72.13 b A
667 m² 50%草除灵悬浮剂80 mL	82.67	98.67	46.28 b BC	104.84	24.74 c B
667 m² 50%草除灵悬浮剂60 mL	70.67	127.67	17.13 b C	175.45	-27.05 d C
对照	93.33	202.00	0	137.59	0

处理	阔叶杂草
处理	药前株数	药后株数	株防治效果/%	药后鲜重/g	鲜重防治效果/%
667 m² 50%草除灵悬浮剂40 mL+30%氨氯·二氯吡水剂40 mL	53.67	8.00	93.31 a AB	10.67	92.26 ab A
667 m² 50%草除灵悬浮剂30 mL+30%氨氯·二氯吡水剂30 mL	52.67	5.33	96.82 a A	5.00	96.46 a A
667 m² 30%氨氯·二氯吡水剂60 mL	44.67	21.67	80.60 a AB	9.61	93.11 ab A
667 m² 30%氨氯·二氯吡水剂50 mL	54.67	108.00	15.74 b C	38.92	72.13 b A
667 m² 50%草除灵悬浮剂80 mL	82.67	98.67	46.28 b BC	104.84	24.74 c B
667 m² 50%草除灵悬浮剂60 mL	70.67	127.67	17.13 b C	175.45	-27.05 d C
对照	93.33	202.00	0	137.59	0

处理	药前株数	药后14 d		药后105d
处理	药前株数	株数	株防治效果/%	株数	株防治效果/%	药后鲜重/g	鲜重防治效果/%
667 m² 50%草除灵悬浮剂40 mL+30%氨氯·二氯吡水剂40 mL	9.67	0	100.00 a A	0	100.00 a A	0	100.00 a A
667 m² 50%草除灵悬浮剂30 mL+30%氨氯·二氯吡水剂30 mL	25.33	5.67	93.29 ab A	0	100.00 a A	0	100.00 a A
667 m² 30%氨氯·二氯吡水剂60 mL	42.00	3.33	96.52 a A	0	100.00 a A	0	100.00 a A
667 m² 30%氨氯·二氯吡水剂50 mL	31.00	7.00	91.59 ab A	0	100.00 a A	0	100.00 a A
667 m² 50%草除灵悬浮剂80 mL	46.33	34.67	60.76 bc AB	39.67	63.11 b B	59.79	30.86 b B
667 m² 50%草除灵悬浮剂60 mL	50.33	53.33	29.60 c B	71.33	37.35 c C	147.68	-72.81 c C
对照	36.67	75.67	0	84.00	0	86.56	0