Compound herbicide and its use method

Abstract

A compound herbicide for paddy rice field is prepared from fenoxaprop-p-ethyl and cyhalofop-butyl. Its advantages are high effect, low dosage, low cost and high safety.

Description

technical field

[0001] The invention relates to a compound herbicide, especially a paddy field herbicide composition, and at the same time, the invention also provides its application method, which belongs to the technical field of agricultural herbicides. Background technique

[0002] With the continuous expansion of the planting area of ​​light cultivated rice such as direct-seeding rice, wheat interplanting rice, and throwing seedling rice, Qianjinzi has risen from a secondary weed in the past to a major malignant weed. Since the genia chinensis is more suitable for the "dry, wet and wet" light cultivation mode than rice, its occurrence area in paddy fields is expanding year by year, and its damage is becoming more and more serious. At present, whether or not the damage of D. chinensis can be effectively controlled has become the key to achieving high and stable yields of lightly cultivated rice.

[0003] The starting point temperature of growth and the required effectiv...

Examples

Embodiment 1

[0022] Compound 20% "Fenoxaprop-P-P-P + Cyhalofop-ethyl" emulsifiable concentrate, the specific weight percentage of the compound ingredients is: (the current production process of Jingfen and Cyhalofop can only achieve 10% content, in order to avoid doubt , I would like to reduce the amount of both a bit, but keep the same ratio)

[0023] Fenoxaprop-ethyl 10%

[0024] Cyhalofop-methyl 10%

[0025] Ethanol (solvent) 5%

[0026] Sodium lauryl sulfate (surfactant) 6%

[0027] Nongru No. 600 (surfactant) 4%

[0028] Xylene (solvent) 65%

Embodiment 2

[0030] Compound 30% "Fenoxaprop-P-P-P + Cyhalofop-methyl + Bensulfuron-methyl" emulsifiable concentrate, the weight percentage of the compound ingredients is:

[0031] Fenoxaprop-ethyl 10%

[0032] Cyhalofop-methyl 10%

[0033] Bensulfuron-methyl 10%

[0034] Ethanol (solvent) 5%

[0035] Sodium lauryl sulfate (surfactant) 6%

[0036] Nongru No. 600 (surfactant) 4%

[0037] Xylene (solvent) 55%

Embodiment 3

[0039] Compound 50% "Fenoxaprop-P-P-P + Cyhalofop-methyl + Dimethyltetrachloride" aqueous emulsion, the weight percentage of the compounded ingredients is:

[0040] Fenoxaprop-ethyl 5%

[0041] Cyhalofop-methyl 5%

[0042] dimethyltetrachloride 40%

[0043] Sodium lauryl sulfate (emulsifier) ​​4%

[0044] Sodium lignosulfonate (dispersant) 4%

[0045]Butyl glycidyl ether (stabilizer) 3%

[0046] Ethylene glycol (antifreeze) 5%

[0047] Water (dispersion medium) 34%

[0048] The use effect of above each embodiment is referring to attached table 1 and 2, as can be seen from the table:

[0049] 1. For rice at the 6-leaf stage, 3 grams of fenoxaprop-ethyl per mu has poor weeding effect, and 4 grams of fenoxaprop-ethyl per mu has better weeding effect, but it is harmful to rice. In both cases, rice yields were not satisfactory. However, the combination of 3 grams of fenoxaprop-ethyl + 3 grams of cyhalofop-ethyl is ideal both in terms of herbicidal effect and rice yield, and...

technical field

[0001] The invention relates to a compound herbicide, especially a paddy field herbicide composition, and at the same time, the invention also provides its application method, which belongs to the technical field of agricultural herbicides. Background technique

[0002] With the continuous expansion of the planting area of ​​light cultivated rice such as direct-seeding rice, wheat interplanting rice, and throwing seedling rice, Qianjinzi has risen from a secondary weed in the past to a major malignant weed. Since the genia chinensis is more suitable for the "dry, wet and wet" light cultivation mode than rice, its occurrence area in paddy fields is expanding year by year, and its damage is becoming more and more serious. At present, whether or not the damage of D. chinensis can be effectively controlled has become the key to achieving high and stable yields of lightly cultivated rice.

[0003] The starting point temperature of growth and the required effectiv...

Examples

Embodiment 1

[0022] Compound 20% "Fenoxaprop-P-P-P + Cyhalofop-ethyl" emulsifiable concentrate, the specific weight percentage of the compound ingredients is: (the current production process of Jingfen and Cyhalofop can only achieve 10% content, in order to avoid doubt , I would like to reduce the amount of both a bit, but keep the same ratio)

[0023] Fenoxaprop-ethyl 10%

[0024] Cyhalofop-methyl 10%

[0025] Ethanol (solvent) 5%

[0026] Sodium lauryl sulfate (surfactant) 6%

[0027] Nongru No. 600 (surfactant) 4%

[0028] Xylene (solvent) 65%

Embodiment 2

[0030] Compound 30% "Fenoxaprop-P-P-P + Cyhalofop-methyl + Bensulfuron-methyl" emulsifiable concentrate, the weight percentage of the compound ingredients is:

[0031] Fenoxaprop-ethyl 10%

[0032] Cyhalofop-methyl 10%

[0033] Bensulfuron-methyl 10%

[0034] Ethanol (solvent) 5%

[0035] Sodium lauryl sulfate (surfactant) 6%

[0036] Nongru No. 600 (surfactant) 4%

[0037] Xylene (solvent) 55%

Embodiment 3

[0039] Compound 50% "Fenoxaprop-P-P-P + Cyhalofop-methyl + Dimethyltetrachloride" aqueous emulsion, the weight percentage of the compounded ingredients is:

[0040] Fenoxaprop-ethyl 5%

[0041] Cyhalofop-methyl 5%

[0042] dimethyltetrachloride 40%

[0043] Sodium lauryl sulfate (emulsifier) ​​4%

[0044] Sodium lignosulfonate (dispersant) 4%

[0045]Butyl glycidyl ether (stabilizer) 3%

[0046] Ethylene glycol (antifreeze) 5%

[0047] Water (dispersion medium) 34%

[0048] The use effect of above each embodiment is referring to attached table 1 and 2, as can be seen from the table:

[0049] 1. For rice at the 6-leaf stage, 3 grams of fenoxaprop-ethyl per mu has poor weeding effect, and 4 grams of fenoxaprop-ethyl per mu has better weeding effect, but it is harmful to rice. In both cases, rice yields were not satisfactory. However, the combination of 3 grams of fenoxaprop-ethyl + 3 grams of cyhalofop-ethyl is ideal both in terms of herbicidal effect and rice yield, and...