碳/氮比率可作为白榆新梢生根的指标。
汪道昆《太函集》中曾提到王世贞与汪道昆等人有“白榆之约”，同修“西园故事”。
In TaiHan Collection by Wang Daokun, he mentioned the appointment of white elm with Wang Shizhen and himself and some others, the enjoyment of the tales of west garden.
榆少锤角叶蜂是严重危害榔榆、白榆叶片的新害虫。
Agenocimbex ulmusvora Yang is a newly discovered insect pest that causes severe damage to leaves of Chinese elm and White elm.
选用君迁子、臭椿、白榆三个树种苗木，在盆栽条件下，控制三种土壤含水量，研究其适应性和耗水特性。
We chose three species of nursery stocks. In pot experments under manual soil water content, study on their adaptability and water consumption properties.
插穗中碳、氮的绝对量及碳 /氮比率可作为白榆新梢生根的指标。
C and N conternt as well as C/N ratio can be taken as a rooting index of elm tip.
插穗中碳、氮的绝对量及碳 /氮比率可作为白榆新梢生根的指标。
C and N conternt as well as C/N ratio can be taken as a rooting index of elm tip.
应用推荐