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- A Research on the Nitrogen and Phosphorus Requirement of Thalassiosira sp. 对氮磷需求量的研究。
- The watershed's worst problem is nutrient pollution, which is caused by the overabundance of the nutrients, nitrogen and phosphorus. 分水岭面临更严重的问题，来自营养物的污染，这些营养物污染源自营养物质、和磷的过量排放。
- The high rate of nitrogen and phosphorus is unfavourable to the photosynthesis of the phytoplankton. 过高的氮磷比不利于浮游植物进行光合作用。
- Removal of nitrogen and phosphorus from agricultural irrigation runoff in subsurface horizontal-flow wetland. 潜流水平湿地对农业灌溉径流氮磷的去除。
- Effect of different nitrogen and phosphorus level on growth and quality of Salicornia bigelovii Torr. 不同氮磷水平对北美海蓬子生长和品质的影响。
- However,removal efficiencies of nitrogen and phosphorus in conventional oxidation ditches are low. 然而，传统的氧化沟工艺对氮和磷的去除效率较低。
- Two other low-input ways to improve the soil involve using manure or nitrogen and phosphorus as fertilizer. 还有两种低成本的方法可以改善土壤，包括施用粪肥或者氮肥、磷肥。
- Title： A Research on the Nitrogen and Phosphorus Requirement of Thalassiosira sp. 关键词：海链藻;培养基;氮;磷;生长速率
- The scientists then compared how much nitrogen and phosphorus were available in the soil. 然后科学家将土壤中有用的氮磷物质的含量进行了对比。
- Chlorella pyrenoidosa was immobilized by calcium alginate and used to remove nitrogen and phosphorus from wastewater. 采用海藻酸钙对蛋白核小球藻进行固定,并用于去除污水中的氮磷。
- Studies on the ability of Hydrodictyon reticulatum to remove nitrogen and phosphorus under different environmental condition. 在不同环境条件下对氮磷的吸收能力。
- Manure or nitrogen and phosphorus as fertilizer. And the fifth way that the study found may improve sorghum production is to reduce crop tillage. 另外两种低投入的改良土壤方法是用粪肥、氮和磷作为肥料,研究发现的第五种方法是减少作物耕种可以改善高粱的产量。
- Algae, algal bloom Proliferation of algae due to excessive release of nitrogen and phosphorus (e. G. From fertilizer runoff or detergents). 藻类;藻类繁盛由于氮和磷(例如肥料和洗涤用品)的过度排放而引起的藻类大量生长。
- The results show as follows: (1) Elodea nattalii and Hydrilla verticillata have strong capacity of purification on nitrogen and phosphorus , etc. 在实验室条件下.;对伊乐藻及轮叶黑藻净化养鱼污水的能力进行了比较研究。
- The released nitrogen and phosphorus by surface runoff from uplands in the Taihu Lake catchment were investigated in a case study. 采用田间试验方法,研究了太湖地区旱地氮磷向水体排放的年负荷。
- The performance of the CMASPFT in biological removals of nitrogen and phosphorus was studied under 3 sludge reflux ratio(SRR). 介绍了多点交替进水五箱一体式工艺的流程与特点,研究了不同污泥回流比下反应器对氮、磷的去除效果。
- The lake's environmental problems include accelerated eutrophication, or aging, caused by nitrogen and phosphorus enrichment. 太湖环境问题包括氮磷元素富集带来的富营养化。
- The mechanisms of of the biological removal of nitrogen and phosphorus are explained.The technologies of MSBR,UCT and BCFS are analyzed. 在阐述城市污水生物脱氮除磷机理的基础上,分析生物脱氮除磷的MSBR工艺、UCT工艺和BCFS工艺。
- It was reflected that there were same biogeochemistry mechanism of the absorbing of nitrogen and phosphorus by submerged macrophytes. 反映沉水植物在沉积物的生长过程中对氮磷吸收的生物地球化学机制是相似的。
- Simultaneous nitrogen and phosphorus removal from wastewater was investigated in SBR operated in anaerobic/aerobic/anoxic(AOA)mode. 借助SBR反应器,通过采用厌氧/好氧/缺氧(AOA)的运行方式来实现同步脱氮除磷。
