What medicine should be used for triple high yield of wheat? Can I spray medicine during flowering?

High yield is the goal that every farmer pursues very much, and spraying chemicals is a very important part of high-yield cultivation and management of wheat. So what medicine should be used for the third high yield of wheat? Can I spray medicine during flowering?

1. What medicine should be used for triple high yield of wheat?

1, the first application of wheat for high yield.

At the jointing stage of wheat turning green (middle and late March), 20 ml of liquid boron, 50 g of energy bank (99% potassium dihydrogen phosphate), 65,438+00 ml of brassinolide, 30 ml of pyraclostrobin EC and 20 ml of beta-cypermethrin EC were mixed according to the formula and added to 20 kg of water. Then spray it evenly on the wheat plants. When spraying, the nozzle should be aimed at the leaves, stems and other parts of the wheat plant, so that the liquid medicine can evenly cover the whole plant.

2. The second application of high yield of wheat.

At booting stage (mid-April, about 20 days after heading), 8 ml of 22% thiamethoxam HCF suspension, 50 g 15% triadimefon wettable powder, 100 g of 99% potassium dihydrogen phosphate, 20 ml of liquid boron and other chemicals were added to 20 kg of water. Then spray it evenly on the wheat. It should be noted that the water of chemicals should be evenly mixed and fully stirred to ensure that each piece of wheat can be fully sprayed with chemicals. In addition, pesticide spraying should be carried out in the morning or evening to avoid strong sunlight, so as to avoid adverse effects on wheat.

3. The third application of high yield of wheat.

At the heading stage (about 15 days after flowering), 60g of 30% penconazole thiram wettable powder, 30ml of 7.5% chlorpyrifos imidacloprid suspension, 0.0 1% brassinolide wettable powder10ml and potassium dihydrogen phosphate10ml were mixed.

Second, can wheat be sprayed during flowering?

Pesticides should not be sprayed on wheat at flowering stage, because spraying pesticides at flowering stage will affect wheat pollination and thus affect wheat yield. If the disease is at a high incidence, such as scab, some tebuconazole suspension and other drugs can be sprayed at the early flowering stage, before 10 in the morning or after 4 pm, and can be used in cloudy days.

First of all, wheat pollen is the sperm of wheat and an important source of wheat pollination. The pollination process of wheat needs to spread pollen through the wind, and the pollen can only be pollinated when it falls on the female style, thus producing wheat seeds. If pesticides are applied at the flowering stage of wheat, it will pollute the pollen of wheat, affect its vitality, and even directly inactivate the pollen, thus affecting the pollination and yield of wheat. Therefore, it is necessary to put an end to the application of pesticides to wheat during the flowering period.

Secondly, wheat is in a highly sensitive period at flowering stage and is easily influenced by the external environment. Wheat needs to maintain a good growth environment, including light, temperature, humidity and other factors to ensure normal growth and pollination. Pesticide spraying will change the growth environment of wheat, affect its growth and pollination, and then affect its yield. Therefore, during the flowering period of wheat, special attention must be paid to maintaining the growing environment of wheat to avoid negative effects on wheat.

Summary: The third application of pesticide for high yield of wheat can be 1 time at jointing stage (mid-March), booting stage (mid-April, about 20 days after heading) and heading stage (about 15 days after flowering), but it is not allowed to apply pesticide at flowering stage, because spraying pesticides at flowering stage will affect wheat pollination and thus affect yield.