4% Methamidox Tobacco Aqueous Agent

The m preparation is a clear yellow viscous liquid with a specific gravity of 1.07 g/ml. It has a storage stability of more than 3 years under normal temperature and hot and cold conditions.

Toxicity of tobacco to mammals is very low. LD50 of the original drug in mice and rats is more than 5000 mg/kg through mouth, LD50 in rabbits is more than 4000 mg/kg through skin, and LC50 in rats is more than 6.3 mg/l through inhalation. It has no irritation to eyes and skin, no teratogenicity, carcinogenesis and mutagenicity, so it is very safe in storage and use.

Acute oral LD50 in male and female rats was more than 5000 mg/kg, acute percutaneous LD50 in rabbits was more than 4000 mg/kg, and acute inhalation LC50 in rabbits was more than 6.6 mg/l. It has no irritation to rabbit's eyes and skin.

It is suitable for crop soybeans.

The control targets of methoxyimidaceous tobacco can effectively control most annual grasses and broad-leaved weeds, such as wild oat, barnyard grass, setaria, maidenhair, millet, thousand gold seeds, tangerine, plantain (before 3-leaf stage), Solanum nigrum, wasabi, amaranth, quinoa, quinoa, xanthium, xanthium, verticillium, verticillium, thorn needle, wolfberry grass, hay bush. It can inhibit perennial lettuce, Echinacea and so on.

Applied technology:

The application period of Methamidophos should be from two true leaves to the second three compound leaves after soybean emergence. At the same time, it should be noted that grasses should be in the 2-4-leaf stage and broad-leaved weeds should be 2-7 cm high. The control of Xanthium sibiricum should be applied before the 4-leaf stage of Xanthium sibiricum, but the effect is poor for the unearthed Xanthium sibiricum. The best application was at the 2nd leaf stage, but the effect was poor after the 3rd leaf stage.

4% methoxyimidazole tobacco water 75-83 ml (effective ingredient 3-3.32 g) per mu. When using low dosage, ammonium sulfate with 2% spraying volume should be added. Soil moisture is suitable. Weeds grow vigorously and use low dosage when weeds are young, and high dosage when weeds are difficult to control under drought conditions.

All field spraying or seedling belt spraying can be carried out. Artificial backpack sprayer has 20~40 litres of liquid spray and 10~14 liters of tractor sprayer. It is not possible to use ultra low volume sprayer or knapsack sprayer to carry out ultra low volume spray. Artificial spray should choose fan-shaped nozzles, apply ridge by row, spray pressure, distance of nozzle, height of ground and speed of walking. When spraying, it should not be high and low.

98% imidazole ethylnicotinic acid

Imidazole tobacco (imidazole ethylnicotinic acid)

Chinese Name: Pushter, Doucaozole, Pushter.

Molecular formula: C15H19N3O3, molecular weight: 289.33

Melting Point: 169 - 173 C (decomposition at 180 C)

Solubility (g/L, 25 C): water 1.4; acetone 48.2; dichloromethane 185; toluene 5; isopropanol 17; methanol 105

Stability: stable in acidic and neutral conditions, decomposed in strong alkali.

Light yellow to white crystalline solid with no visible foreign impurities

Toxicity: Low toxicity, acute oral LD50 > 5000mg/kg in rats.

Imidacloprid tobacco is a super-efficient, broad-spectrum and endogenous herbicide used in soybean field. It has good control effect on annual grasses and broad-leaved weeds. However, it has a long residue time in soil and degrades slowly under alkaline conditions, which is easy to cause drug damage to sensitive crops in the following crop.

The variety was successfully developed in 1984 and was widely used from the late 1980s to the early 1990s.

Imidacloprid tobacco belongs to imidazolinone herbicides. It is a side chain amino acid synthesis inhibitor, which is applied before or after budding. It has excellent control effects on gramineous weeds and some broad-leaved weeds in soybean and other leguminous plant fields, such as amaranth, polygonum, quinoa, solanum, Xanthium sibiricum, barnyard grass, setaria, horse tang, millet, etc. It can be made into water agent.

Spraying method: Seedling Stage (soybean true leaf stage to 2 leaf leaf stage, weed 1~4 leaf stage), 1000 hectare 2000ml5% water agent per hectare, evenly spray 450 ~ 600kg of water. When planted at seedling stage (soil moisture condition is good), water agent of 1500 ~ 2250ml5% per hectare is evenly sprayed to 450 ~ 600kg of water.

Notes: Apply the medicine evenly and thoughtfully, avoid repeating the application, only once a year. Avoid aerial spraying; do not drift to sensitive crops when spraying.

Sensitive crops include beet, cabbage, rape, watermelon, cucumber, potato, eggplant, pepper, tomato, sorghum and so on. The above crops can not be planted in the second year and beet can not be planted in three years.

The preparation is suitable for soybean producing areas in Northeast China. The unused areas should be tested and popularized under the guidance of agricultural technology departments.