Acifluorfen — has a pronounced contact and systemic action, is selective, is absorbed by leaves and roots, can move through the plant. Inhibits the enzyme involved in the synthesis of chlorophyll. The death of weeds occurs as a result of the destruction of their cell membrane.
Bentazon — has a contact effect, is absorbed by the leaf at the point of impact, blocks the photosynthetic transport of electrons, as a result, the assimilation of CO2 is interrupted, the plant stops growing, the cell membrane is destroyed, which subsequently leads to death.
Properties:
APPLICATION RECOMMENDATIONS
The herbicide is used in the phase of development of 1-4 triple leaves of soybeans, when weeds are in the early stages of their development (in the phase of cotyledon leaves, maximum of the first pair of leaves). (//tractor-service.com)
Optimum climatic indicators:
Air temperature — up to +25°С (opt. +15...+18°С)
The relative humidity of the air is at least 60%.
Soil moisture 60–80% HB
Wind speed 3–4 m/s
Water quality:
–– Hardness no more than 350 mg/l (ppm) or 0.7 mS/cm according to the electrical conductivity index.
–– pH within 6-7.
The recommended volume of the working solution is 200–300 l/ha. The working pressure when spraying is 2.5–3.5 bar. Since the effectiveness of the drug depends on the intensity of sunlight, it is advisable to apply it in the morning hours. Precipitation immediately after applying the drug can reduce its effectiveness. The drug is applied evenly over the entire area of the field. Multiplicity of treatments per season — once.
Application of the herbicide during prolonged periods of drought with high air temperature or in excessively humid conditions may result in the appearance of yellowing or bronze spots, which does not affect the future yield and development of soybean plants.
It is not recommended to use in mixtures with anti-grass herbicides, organophosphorus preparations, microfertilizers and surface-active substances.
Regulations of application:
Culture Harmful object Consumption rate, l/ha Max. processing Method, time of processing, limitations
Soy
Annual dicotyledonous weeds 1.5–2.0
1
Spraying crops in phase 1–4 of true leaves of the crop and early phases of weed growth.