The three most important nutrient recycles are the nitrogen cycle, the carbon cycle and the one we are going to talk about today, the Phosphorus cycle.
这三种最重要的营养循环包括氮循环、碳循环和我们今天要讲的磷循环。
The Phosphorus cycle has been studied a lot by ecologists because like I said, Phosphorus is an important nutrient and it's not so abundant.
生态学家对磷循环进行了大量研究，因为如我所说，磷是一种重要而不充足的营养物质。
At best, they contain nutrients, such as phosphorus, which gave our nutrient-poor ancestors a little more energy.
他们充其量就包含一些营养元素，曾给我们营养不良的祖先们增添过一些能量，如磷。
Phosphorus was the nutrient element limiting the eutrophication of the lake.
磷是湖泊富营养化的限制性营养元素。
Influenced by the subtropical climate and unreasonable use in deeply weathering red soils, the nutrient content is lower, especially the validity of phosphorus.
高度风化的酸性红壤，受亚热带气候及不合理利用影响，土壤养分含量偏低，尤其是土壤磷素的含量及有效性也很低。
The balance analysis results of soil nutrient indicated that the fertilization methods of cropland management in Chengdu Plain were firming nitrogen, controlling phosphorus and increasing potassium.
土壤养分的平衡分析结果表明，成都平原耕地土壤管理宜采取“稳氮、控磷、增钾”的施肥方法和严格控制各种点源和非点源污染物进入土壤。
Reducing the nutrient quantity released by sediment through manipulating the period for digging up sediment is necessary to enhance removal ability of HBFM for dissolved nitrogen and phosphorus.
因此合理控制底泥清除周期减少底泥释放量，是提高HBFM溶解性氮、磷去除能力的重要途径之一。
Soil nutrient level has stronger effects on plant tolerance expression than temperature. High concentration of phosphorus and potassium increases tolerance level.
土壤营养水平对植物耐虫性表达的影响大于温度，增施磷、钾肥可增加植物的耐虫性。
Soil microbial biomass P is a valuable resource to plant P nutrient, and also play an important role in the transformaion of soil phosphorus.
土壤微生物生物量磷是植物磷素营养极其重要的来源，对土壤磷素的供给和调节起着重要作用。
The basic reason of eutrophication is the enrichment of the nutrient in the water body such as nitrogen, phosphorus, which results in the excessive growth of algae and other aquatic organisms.
水体富营养化的根本原因是水体中氮、磷等营养物质的富集，使得藻类及其他浮游生物迅猛繁殖所致。
Water-soluble nutrient concentrations in runoff of phosphorus, potassium and bromine ions in the beginning minutes of runoff, runoff in high concentrations, followed by rapid decay.
径流中养分浓度水溶性磷、钾离子和溴离子在开始产流几分钟内，径流浓度很高，随后迅速衰减。
Phosphorus is the first limiting nutrient density to the algae populations, and therefore control the eutrophication, may depend on the phosphorus control measures.
磷是水体中藻类种群和密度的第一限制性营养元素，因此在水体富营养化的治理上，可能取决于对磷的控制措施。
The effects of activated phosphorite powder on the phosphorus utilization of maize were studied by nutrient quartz_sand culture experiment in the green_house.
温室砂培试验研究了活化磷矿粉对玉米生长和吸收磷肥的影响。
Biological nutrient removal is a relatively low-cost means of removing nitrogen and phosphorus from wastewater.
在对废水进行脱氮除磷时，去除生物营养素是一种相对成本较低的方法。
We can see from the valuation of nutrient balance that the nutrient of revenue and expenditure of each region was nitrogen and phosphorus were surplus, potassium was deficit.
养分平衡评价可以看出各试区养分收支情况为氮磷是有盈余的，而钾处于亏缺状态。
The effects of submerged plants on the purification efficiency of nutrient contaminations and phosphorus concentration in sediment were studied by using constructed pony enclosures.
通过在污水中加入示踪剂 ，研究了人工湿地的水力学特点及其对污水净化效果的影响规律 。
Potassium is a major nutrient in higher plants, which together with nitrogen and phosphorus is known as the "three essential factors" of plant nutrition.
钾是植物生长发育所必需的大量元素，是与氮、磷并列的植物营养的“三大要素”之一。
The expanding of sludge is a managing problem in nutrient and phosphorus removal system.
在生物脱氮除磷工艺中，污泥膨胀是运行管理的难题。
Phosphorus is an essential nutrient for human being and living things growing.
磷在人及生物生长发育过程中具有重要作用。
The invention relates to a slow-release type nitrogen-phosphorus-potassium composite fertilizer and a production method thereof, belonging to a composite fertilizer with slow-release type nutrient.
本发明是一种缓慢释放型氮磷钾复合肥料及其生产方法。属于营养成分缓 慢释放的混合肥料。
Nitrogen and Phosphorus are restricted severely to prevent the water eutrophication. Biological nutrient removal (BNR) is an important water pollution control technology.
为遏制水体的富营养化，氮、磷的排放标准日趋严格，生物脱氮除磷工艺能有效地去除水体中的氮、磷。
Nitrogen and Phosphorus are restricted severely to prevent the water eutrophication. Biological nutrient removal (BNR) is an important water pollution control technology.
为遏制水体的富营养化，氮、磷的排放标准日趋严格，生物脱氮除磷工艺能有效地去除水体中的氮、磷。
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