The “drug and fertilizer integration†technology refers to the application of a combination of disease-preventing agents and foliar fertilizers in a potato disease prevention task, and spraying them at the same time in a single application. This technology is effective in controlling potato early (late) disease. Especially prominent. It has been widely used in northern China.
The principle of use: drug fertilizer does not produce acid-base reactions,
Advantages: Combining disease prevention and treatment with supplementary nutrition not only has good disease-preventing effect, low chemical cost, and saves operating cost of machinery, but also has an important role in improving tuber quality and increasing tuber yield and starch content.
The commonly used mode of use is the use of a protective agent mixed with calcium magnesium borate, a systemic fungicide and potassium dihydrogen phosphate and an insecticide.
The use of drug and fertilizer integration technology:
1, the first spray: the first time in the production of spray time is often difficult to determine, should be based on plant growth and development and climate conditions, based on forecasting and spraying. Generally in the early stages of potato buds should be sprayed, precocious sick varieties even earlier. )
2. The second spraying: The potato enters the budding stage. At this time, the early blight enters the onset stage. Continue to apply 750g calcium magnesium borate fertilizer + 180g mancozeb water dispersible granule or 80g suspension agent per acre to promote plant growth.
After the machinery enters the ground, it will damage the furrows in the land. When spraying, it should pay attention to the fixed lanes to reduce the damage to other furrows and reduce the spread of germs.
3, the third spray: potatoes into the flowering period, the plants have been fully opened, and began to tuber, the requirements of fertilizer and water is relatively high. If the weather is dry, then continue to use protective fungicides per mus 1000g calcium magnesium magnesium fertilizer + 180g mancozeb water dispersible granules. In case of epidemic diseases due to continuous rainy weather, epidemic diseases should be changed. Therefore, the type of pharmaceuticals should be changed. The medicament is changed to the inhalation fungicide cymoxanil zinc, and calcium borate 1000g + 180g cymoxanil zinc per acre is used.
4, the fourth spray: potatoes into the potato period at this time the potato on the water and fertilizer requirements are high, late blight disease also entered a high period, change the type of drug fertilizer, per mu 50g 1000 King + 180g dimethomorph morpholine manganese zinc. Increase the prevention and control of late blight.
If pests are found, they can be used together with insecticides. Test before use to see if any reaction occurs. If precipitation occurs after mixing, pesticides should not be mixed.
5, the fifth spray: tuber expansion period, this time the potato on the water and fertilizer requirements are the highest, should continue to increase the frequency of fertilizer use, medication is the use of treatment of late blight of cymoxan manganese zinc 2.5kg/ha+200g of potassium dihydrogen phosphate.
6, the sixth and seventh spray: early maturity of potato into the late-maturing varieties are still tuber expansion period, this time can continue to spray one fertilizer, increase plant survival, prevention and treatment of potato tuber infection, drug and fertilizer The ratio is: 200g of potassium dihydrogen phosphate per acre + 200g of frost urea manganese zinc + 180g of zinc enoyl manganese zinc. The last mu using dimethomorph manganese zinc 180g +200g potassium dihydrogen phosphate. Promotes the aging of tubers and increases the tuber's shelf life.
We're Professional Supplier Extract Powder manufacturers and suppliers in China specialized in providing high-quality products at low price. We warmly welcome you to buy or wholesale bulk Supplier Extract Powder for sale here from our factory. For a free sample, contact us now.
Supplier Extract Powder,Supplier Extract ,Supplier Powder Manufacturer in China
Shaanxi Kang New Pharmaceutical co., Ltd. , https://www.apipepdites.com