Spring has warmed up, everything has recovered, and wheat has entered a period of greening and jointing. This is a crucial period for determining the harvest. The small farmers’ teacher hastened to tell everyone that there is something to do now.
Pay attention to prevent spring frost damage and late lodging
This autumn is early in the autumn, the soil moisture is suitable, the overall seedling situation is better, and it is more favorable for safe wintering, but the wheat field with large amount of sowing and sufficient fertilizer has a long trend before winter. For the wheat fields where the group is too large and too strong, it is necessary to carry out measures such as deep-root cultivation and root-cutting. In spring, the temperature rises rapidly and fluctuates greatly, and it is prone to “cold springâ€. The wheat field is timely flooded to improve soil moisture and prevent freezing damage.
Timely elimination of chemical control
Chemical weeding is not carried out before winter, and chemical weeding is carried out from late February to mid-March. The wheat field mainly consisting of broadleaf weeds such as sage, amaranth, and bristle can be uniformly sprayed with double happiness, broad grass and star, etc.; The sulphuric acid and sorghum is used to uniformly spray the water and stem leaves; the wheat field where the dicotyledonous and the monocotyledonous weeds are mixed can be mixed and used. After the wheat is raised, the herbicide should be stopped to avoid phytotoxicity. Chemical control can not only control the growth of wheat, promote nutrient accumulation, improve frost resistance, but also inhibit the elongation of the first internode of the base, promote root canal, and effectively prevent late lodging.
Pay attention to prevention and control strip rust
According to local reports, this year's wheat stripe rust disease time is significantly earlier than in recent years. At the same time, the occurrence range is significantly larger than the same period of the year, which is the most extensive in recent years. It should be highly valued.
Stripe rust is an important disease that threatens wheat in spring. Spring rain is much earlier, which is conducive to the spread of stripe rust. When the temperature rises to 5 °C, spores of stripe rust begin to occur. In case of spring rain or condensation, the spread of the disease spreads rapidly and is prone to spring prevalence. If the rain is more diligent and the temperature is suitable in April-May, it will be beneficial to the occurrence of stripe rust. With the spread. If there is rain in early spring and there is rain in the late drought or early spring drought, stripe rust will occur lightly. Many farmers do not know how to judge stripe rust. In fact, they can view the agricultural technology knowledge of related diseases in the Hui Nong School.
Control method: In the wheat jointing or booting stage, the prevalence rate of the diseased leaves is 2%-4%, and when the severity is 1%, 100% of the triazolone (powdering rust) wettable powder is used in the mu, and evenly sprayed with 45 kg of water.
Part of the content comes from: Ai Nong Bang, Jinling Rural Network
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