Great Effects for Dazomet 98%Tc

Application

Broad-spectrum pesticides. The nematocides with fumigation function can decompose methyl isothiocyanate, formaldehyde and hydrogen sulfide in soil, and have killing effect on rhizoma nematode, stem nematode and heteroderma nematode. In addition, it has insecticidal, bactericidal and herbicidal effects, so it can also treat soil fungi, underground pests and chenopodium weeds, such as potato rhizoctonia, soil polypteroptera insects, kowbeetles, May scarab larvae and so on. Using 98% particulate agent 750 ~ 900g/100m2 sand soil, 900 ~ 1050g/100m2 clay as soil treatment, spread or trench application, Chemicalbook can control vegetable and peanut nematode disease. 75% wettable powder 1125g/100m2 can be used to control potato root nematode disease.
Soil fumigant, methyl thioisothiocyanate nematocide, and also to treat fungi, underground pests and weeds, also known as quick extinction. The product is decomposed in soil to form methylaminomethyl dithiocarbamate, and further to form methyl isothiocyanate. It can effectively control nematodes and soil fungi, such as cataplexy bacteria, filarial bacteria, fusarium, etc., and can also inhibit the growth of many weeds. It has good control effect on cotton yellow blight.

Disinfection process

(1) Before using Dazomet, clean up the roots of the last crop, and apply the base fertilizer required by the next crop.
(2) Ensure that the moisture content of the soil reaches about 50-60% of the field water capacity, if it does not meet the standard, you can inject water into the field; 3-5 days after irrigation, use the machine to turn and break the soil to ensure the permeability of the soil.
(3) When using Dazomet, the appropriate temperature of the soil is 12-18 ° C, and the minimum can not be less than 6 ° C.
(4) Use 25-40g of Dazomet per square meter of land. Among them, the use of cucumber, sweet pepper, pepper greenhouse is 20-25kg/ mu, the use of tomato greenhouse is 25-30kg/ mu, and the use of strawberry greenhouse is 15-20kg/ mu.
(5) Apply the drug evenly on the surface, and then use the rotary plow for rotary tillage (the depth is 25-30cm), so that the Dazomet rise is fully in contact with the ploughing layer to achieve maximum efficacy. If the root knot nematode occurs seriously, the rotary tillage depth should be 40cm, and the upper limit of drug use should be applied.
(6) After application, water is sprayed on the surface to produce disinfection gas (methyl isothiocyanate, formaldehyde and hydrogen sulfide).
(7) Cover the film (thickness shall not be less than 6 silk), then compact the film with new soil, do not let the disinfection gas leak out, and keep the temperature of the soil at 10cm at 20℃, closed disinfection for about 15-20 days (in low temperature weather, the fumigation time should be extended).
(8) After disinfection, uncover the film, and use rotary plow to ventilate the soil, release the toxic gases remaining in the soil, usually ventilate for about 15 days (when the weather is cold and wet, extend the ventilate time, when the weather is hot and dry, reduce the ventilate time).
(9) Seeds can be sown after disinfection.

Mechanism of Dazomet boom

1. Dazomet is an environmentally friendly broad-spectrum comprehensive soil fumigation disinfectant with high efficiency, low toxicity and no residue.
2. When applied to wet soil, it is decomposed into toxic methyl isothiocyanate, formaldehyde and hydrogen sulfide in the soil, and rapidly spreads to the soil particles, effectively killing various nematodes, pathogens, underground pests and germination weed seeds in the soil, so as to achieve the effect of cleaning the soil.
3. the application is greatly affected by soil temperature and humidity and soil structure, the use of soil temperature should be greater than 12 ° C, 12-30 ° C is the most appropriate, soil humidity is greater than 40% (humidity to hand pinch soil can form a group, 1 meter height can be dispersed after falling to the ground as the standard).