植物在无杂草环境中生长

plant growth hormone maintain a good momentum of growth in the national economy in plant fall in plant environment growth three favorables (whether it promotes the growth of the productive forces in a socialist society, increases the overall strenth of the socialist state and raises the people's living standards a tempest in a barrel bear a part in a friend in court in a tight spot pick a hole in in a humid environment weed-free weed free plant growth in high-latitude region water deficit in a plant plant growth take care of a plant during its growth growth-oriented environment symbol for a period in cell growth cycle attack the plant in the form of a rust plant (growth) hormone