I. Sclerotinia
1. Rotate crops in the affected area or disinfect the soil. Use 40% pentachloronitrobenzene, 1 kg per 667m2, and 50 kg fine soil. Mix well and apply to the soil.
2. Seed dressing with disease-free seeds or drugs.
3. After the shed is sprayed with 1,000 times the "sclerotia net" 1 times, 10 days after the spray 1st, spray before and after the beginning of the spring 3rd, after every 7 to 9 days spray 1 times.
4. Ecological control: During the whole growing season, it is necessary to strengthen ventilation and reduce humidity so as to reduce the occurrence of diseases.
Second, leaf blight and spot blight
The two kinds of diseases occurred in spots, but once the disease occurred, the disease spread quickly, causing serious harm. The main damage leaves, the leaves become yellow-brown after the disease, when the temperature is large, the disease department is rot, serious down the invasive tender stems along the veins to the heart, resulting in serious reduction in production, so these two diseases should be particularly controlled. These two diseases are new diseases in our district, and may be seed-borne bacteria. Therefore, we adopt preventive measures based on seed disinfection. The method is to soak seeds with “Coctam†or “carbendazim†500 times for 10 to 15 minutes. Sow after cleaning. Followed by strengthening the management, in the early period of high humidity in the buckle shed should pay attention to venting humidity, found that the disease should be sprayed and controlled in time, with carbendazim 600 ~ 800 times solution, mancozeb 600 times solution, 70% meth Bujin 800 to 1000 times liquid, chlorothalonil 500 times liquid, more than two kinds of mixed use better.
Third, root rot
Occurs on low-lying, damp plots. After the onset of parsley roots, the main roots are yellow-brown or brown-brown, with soft rot, with no or almost no fibrous roots. The roots of the plants are cut off by hand. The aboveground plants are short and the leaves are yellow and lost. Its commodity nature. The prevention and control method is to avoid planting on low-lying land as much as possible, and the humidity cannot be too long. Chemical control is mainly based on soil treatment. It can use carbendazim 1 kg mixed soil 50kg, spread in the sowing ditch before sowing, in the easy-to-infected land can be combined with water poured into the triplex 300 times solution. Because root rot usually occurs before winter in October, it should be controlled before the shed is baited, mainly with 500 grams of "Prike" or "carbendazim" 600 times.
High purity Polyaluminum chloride PAC 30% supplier
1.PRODUCT APPEARANCE: APPEARANCE: The solid product is produced by the spray drying technology and the obtained product is light yellow, Corresponding liquid products is light yellow.
2.RAW MATERIALS:Domestic high-quality aluminium hydroxide,High-quality calcium aluminate,High-quality hydrochloric acid
3.USAGE: Drinking water treatment Treatment of high-purity water
4.Product Advantages:
1). Flocculation ability, high adsorption activity, floc formation and deposition of fast
2). Without alkali and other additives, PH broad in scope, ease of use; for low-temperature, low turbidity, low alkalinity of the raw water is also good flocculation
3).easily to use and good effective
5.Storage: The products shall be sealed and stored in the dry and ventilated place to prevent from rain ,high temperature and strong sunlight .
6.Application method:
1)The liquid product can be used directly or used after dilution.
Dilution is necessary before used for the solid product. The normal dilution ratio for the solid product is 5%-15%.
2)he specific dosage is based on the flocculation tests and trials by the users. The usual dosage of the liquid product is 3-40 g/ton, and of the solid product, 1-15 g/ton
Water Treatment Chemicals,Waste Water Treatment Chemical,Water Treatment Chemical
Shandong Tiancheng Chemical Co., Ltd. , https://www.tianchengchemical.com