Cho các thao tác sau:

1. Lựa chọn một cành khoẻ, không bị sâu bệnh
2. Đắp bầu đất bao quanh phần thân bị lột vỏ
3. Khi bầu đất xuất hiện rễ thì cắt cành đem đi trồng
4. Lột bỏ một khoanh vỏ trên cành vừa chọn

Thứ tự các thao tác trên theo trình tự sớm muộn trong quy trình chiết cành?

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose the best answer for the following sentence:

  Let’s go ahead and do it now. Nothing ___________ by waiting.
  
  

• Choose the best answer for the following sentence:

  ''When _____________?''

  “In 1928.”
   

• Choose the best answer for the following sentence:

  In recent years, the government has imposed pollution controls on automobile manufacturers. Both domestic and imported automobiles must ____________ anti-pollution devices.
   

• Choose the best answer for the following sentence:

  The first draft resolution ___________ yesterday; it ____________ long before the beginning of the meeting.
  
  

• Choose the best answer for the following sentence:

  He is not in town; he ____________ on a special mission.
   

• Choose the best answer for the following sentence:

  Don't come into the compartment; the berth ____________ now.
   

• Choose the best answer for the following sentence:

  A new underground line ___________ now. They say one of its stations ____________ in my street.
   

• Choose the best answer for the following sentence:

  He wants to know when the final decision ___________. The activities of the committee and their delays already ____________ about.
   

• Choose the best answer for the following sentence:

  It was three o'clock. We ____________ to hurry up because we _____________.
  
  

• Choose the best answer for the following sentence:

  Do you believe that such a problem can _________?