砂質河床 的英文怎麼說
中文拼音 [shāzhíhéchuáng]
砂質河床
英文
sand bed- 砂 : 名詞（沙子） sand; grit
- 質 : Ⅰ名詞1 （性質; 本質） nature; character; essence 2 （質量） quality 3 （物質） matter; substance;...
- 河 : 1 （天然的和人工的大水道） river 2 （指銀河系） the milky way system; the galaxy 3 （特指黃河） t...
- 床 : i 名1 （供人睡覺的傢具） bed; couch 2 （像床的器具、地面） something shaped like a bed Ⅱ量詞（用...
- 河床 : riverbed; bed; poised river; [英方] waterstead; cauce
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The contrast experiment of twig propagation of fast - growing castanopsis fissa by four treatments in three different cutting medium indicated : the cutting medium has a significant effect on the survival rate, the interaction of the cutting treatment and the cutting medium has evident effect on the survival rate. castanopsis fissa twig which is cut and planted at once has the best survival rate in the cutting medium of garden soil mixed with sands. it reaches 87. 5, but in the garden soil, it reaches only 70, and in other mixture, it is below 20. therefore, had better be planted in the medium of garden soil mixed with sands, and be planed after cutting at once
速生菇木樹種? ?黧蒴栲嫩枝經過3種插床基質和4種插條處理的扦插對比試驗，結果表明：插床基質對其扦插成活率有極顯著影響；插條處理及其插床基質的交互作用對扦插成活率存在顯著影響；黧蒴栲嫩枝扦插在園土十河砂混合基質上現剪現插最好，成活率可達87 . 5 ，在園土基質上現剪現插次之，成活率可達70 ；而其它組合成活率都不到20 ，黧蒴栲嫩枝扦插生產上應選用園土或園土+河砂作為插床基質，並要現剪現插。
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