Tập trung phòng trừ sâu bệnh trên cây trồng vụ đông
PTO- Hiện nay trên đồng ruộng đã xuất hiện một số đối tượng sâu bệnh gây hại cây trồng vụ đông. Trên cây ngô: Bệnh khô vằn gây hại nhẹ đến trung bình, tỷ lệ hại phổ biến 0,8-12%, cao 21,3%...
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