What medicine did wheat take for the third time?

Spraying100g phosphorus and potassium source bank (99.7% potassium dihydrogen phosphate) and 20g boron source bank.

When wheat is sprayed to prevent heading and flowering of scab, propiconazole or epoxiconazole, tebuconazole or prochloraz can be used together, and chlorfluazuron imidacloprid can be used to control aphids and midges. It is especially emphasized that phosphorus and potassium sources (99.7% potassium dihydrogen phosphate) must be supplemented, which is the best supplement to prevent dry and hot wind, resist lodging and enhance wheat plumpness.

The suitable time for the third application of wheat is jointing stage (mid-March), booting stage (mid-April, about 20 days after heading) and heading stage (about 15 days after flowering). It can be reasonably matched according to the occurrence characteristics of wheat diseases and insect pests in various places. If it rains within 3-6 hours after application, it should be remedied in time.

growing environment

Deep soil layer, good structure and deep tillage layer are beneficial to water storage and fertilizer conservation and promote root system development. Soil structure refers to the proportion of solid (organic and inorganic), liquid and gas, which is closely related to soil moisture, air, temperature and nutrients. For example, sandy soil and heavy clay have poor structure and are difficult to form high yield.

The average daily temperature of winter varieties is 16 ~ 18℃, semi-winter varieties are 14 ~ 16℃, and the elasticity is 12 ~ 14℃. Temperature and air are affected by geographical latitude and altitude, that is, the higher latitude and altitude, the lower temperature and the earlier sowing date.

Wheat crops with long sunshine time (8 to 12 hours per day), if the sunshine conditions are insufficient. Can't pass the light stage, can't knot, can't bear fruit. The photoperiod of wheat is after vernalization.