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- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- No potassium did we find in this mineral. 在这种矿石中我们没有发现钾。
- Nitrogen, phosphate and potassium were main nutrients studied. 氮、磷、钾是研究的主要养分。
- Nitrogen forms most of the Earth's air. 地球上空气的大部分成分是氮气。
- The lamp is full of gaseous nitrogen. 灯里充满了气体氮。
- Nitrogen forms about 78% of the earth's atmosphere. 氮约占地球大气的百分之七十八。
- Potassium is necessary to the existence of all living things. 钾是所有生物生存必须的。
- The nitrogen utilization efficiency were downtrend with the amount of topdressing increased. 随著施氮量增加，追施氮肥的利用率明显下降。
- This distribution can provide a theory basis for potassium fertilizer topdressing. 烟叶在成熟期所累积的钾中,约有60%25以上分配于上部叶。
- Seedlings in late September to stop topdressing. 9月下旬苗木停止追肥。
- The nitrogen and potassium uptake characters of zhongyou 752 were studied. 摘要对超级稻中优752的氮、钾吸收特性进行了研究。
- Nitrogen, phosphorus and potassium are the necessary nutriments for the plants. 氮、磷、钾是植物生长所必须的三种主要营养元素。
- Topdressing nitrogen treatment had no obvious effect to total nitrogen in soil, but it had a stronger effect to alkalined-nitrogen. 追氮处理对土壤全氮没有明显的影响，但对土壤大麦碱解氮的影响比较大。
- Cuttings topdressing can be carried out with water, can also be used phosphate: potassium hydrogen plus a foliar application of urea. 扦插苗追肥可结合浇水进行，也可用磷酸：氢钾加尿素进行叶面喷施。
- Will you sunder nitrogen from air? 你能从空气中把氮气分离出来吗?
- The components of a potassium cycle vary greatly. 钾素循环的各个环节有很大的变化。
- Li Z F,Ito T.Varietal differences in rice agronomic characters under different rate of topdressing nitrogen[J].J.Anhui Agric.Sci.1998,26(4):326-329. [19]李泽福;藤井俊夫.;后期氮肥比例对不同穗型粳稻品种的效应[J]
- Tear off the rhetorical topdressing from his speech and you find there's very little solid content. 去掉他演讲中华丽的词藻,你会发现其中没什么实在内容。
- Nitrogen is the most commonly used gas. 氮气是最常用的气体。
- RECENT DEVELOPMENT OF POTASSIUM CARBONATE INDUSTRY. 碳酸钾工业发展近况。
