Recently, the corn ear period is coming to an end, and the core demonstration area of 1,000 mu of “ton and half grain” in Zhaijia Town, Linyi County is very lively. Swing left and right”.
“After the corn tasseled, it came to the critical period of flowering and pollination. The wind field generated by the drone during the operation can help the pollen to spread around. A drone can operate about 500 acres a day.” Zhang Wanli, secretary of the Party Committee of Zhaijia Town, said. For a while, he took time to look at the fields every day, and noticed that the rain came earlier this year, and the weather was more cloudy and rainy. He was worried that this would affect the activity and mobility of pollen, resulting in insufficient pollination. He said: “In the past, when artificial pollination was performed, two people were pulling a hemp rope back and forth to increase the air flow, which was very inefficient.”
It was Han Kun, an associate professor at Shandong Agricultural University, who gave Zhang Wanli the idea. Han Kun replied to him on WeChat: “At around 9:00 or 10:00 in the morning, let the drone fly lower, and use the wind of the drone’s propeller to blow the pollen out, which can achieve the effect of assisting pollination. If conditions permit, you can Try it.” Zhang Wanli also met Luo Lanping, a senior agronomist and deputy chief of the Agricultural Technology Section of the Dezhou Agricultural Technology and Seed Industry Center, who came to check the growth of corn. After finding that the measures were effective, the two immediately popularized the magic recipe of drone-assisted pollination through their respective WeChat groups.
It is even more “handy” for drones to drop bee balls to prevent pests. In mid-August, in the core area for the creation of “tons and half of grains” in Pangzhuang Village, Baodian Town, Ningjin County, two plant protection drones accurately dropped bee balls on the corn field, “controlling insects with insects”. prevention and control. Right now is the early stage of egg laying of the corn borer. Choosing to put Trichogramma at this time point can achieve the highest parasitic rate and achieve the best control effect. “One drone can carry 900 to 1,000 bee balls, and can work on 200 acres of land. There are 1,700 to 2,000 Trichogramma in each bee ball, and the main targets are corn borers and cotton bollworms.” Baodian Town Liu Junchen, the head of the agricultural technology station, introduced it.
On August 23, Yaozhan Town, Pingyuan County, unified the “one defense and two kills” work. The flight control staff carefully checked the ratio of insecticides and fungicides, and the agricultural technicians followed the guidance. “Corn is fertilized by moisture to prevent defertilization in the later stage. According to the fertilization situation in the early stage, topdressing 15 to 20 kg of urea per mu, or topdressing the same amount of nitrogen-potassium compound fertilizer, or spraying liquid nitrogen fertilizer with plant protection drones.” Han Baolian, the head of the agricultural technology station in Yaozhan Town, said.
Luo Lanping introduced that there are still about 40 days before the autumn harvest, which is a period of frequent occurrence of corn diseases and insect pests. At present, the members of the 10 “ton and half grain” production capacity creation supervision groups of Dezhou Agriculture and Rural Bureau are also busy in various counties (cities, districts). This year’s abundant rainfall has solved the “stuck neck drought” of corn, but also increased the pressure of pest control. “Next, we need to do a good job in the prevention and control of corn rust. Because wheat is sown and harvested late, and summer corn is planted a few days later, the harvest will be appropriate. At the same time, we must also pay attention to weather changes, prepare agricultural machinery for rush harvest, and do Preparations for the autumn flood to happen again.”
No reply content