The pattern of plant purifying pond about wastewater treatment of oil factory with water spinach is provided and the feasibility, effectiveness and property of the way are also discussed.
Zn content and yield of water spinach increased as the amount of Zn application increased in some field, but excession of Zn inhibited growth of water spinach, yield descended.
Because of a rapid increase of population in South China thereafter, the habitat that zizania grown had broken-down quickly by openning up cultivated land along the edge of lakes and rivers.
Because of a rapid increase of population in South China thereafter, the habitat that zizania grown had broken-down quickly by openning up cultivated land along the edge of lakes and rivers.