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- The limiting nutrient, P.rose , most rapidly, which caused the ratio of N:P to decrease. 30多年来湖体中形态营养元素含量有较大增长,尤其是磷增长最快,使氮磷比下降。
- Nitrogen is the most limiting nutrient in many plant communities, and is the major factor affecting primary production of plant. 氮在许多植物群聚中属于有限的养分,且是植物最初生产力之主要限制因子。
- The results show that lack of carbon source,especially VFA,in the influent and shorter anaerobic HRT are key factors to limit nutrient removal. 结果表明,进水中的碳源特别是挥发性脂肪酸(VFA)不足和厌氧水力停留时间(HRT)太短是导致脱氮除磷效果不佳的主要原因。
- Many studies demonstrate the importance of using P and K together with N to increase crop yields.Applying N with other limiting nutrients also increases N efficiency. 许多研究表明了P、K与N一起施用对提高作物产量的重要性,结合其它限制性养分施用氮素也能够提高氮素利用率。
- [1]Yang D F, Li H, Zhang Y M,et al.The factor and way of limiting nutrient for the growth of phytoplankton[J].Marine Sciences, 2000,24(12):47-50. 杨东方;李宏;张越美;等.;浅析浮游植物生长的营养盐限制因子和方法[J]
- Surely there is a limit to what one can bear. 人的忍耐肯定是有限度的。
- The proposal set a time limit of one year. 提案规定了一年的限期。
- What's the speed limit on the motorway? 高速公路的速度限制是多少?
- Effects of fertilization and phytoplankton species and biomass on the limitative nutrients were also measured in polyhaline water ponds at the same area. 施肥则使营养盐的限制性作用大为减弱,在施肥后期表现出不很明显的氮磷协同限制。
- He was had up for exceeding the speed limit. 他因超速行驶而遭控告。
- The nutrient in the soil acts as a stimulus to growth. 土壤中的养分能促进植物生长。
- He weighed in at several pounds below the limit. 他赛前量体重比规定限度少几磅。
- We must try and limit our expenditure. 我们必须设法限制我们的开支。
- His speech ran over the time limit. 他的讲话超过了规定的时间限制。
- The speed limit is 40 miles per hour. 规定的最高时速为40英里。
- There's a limit to how much I'm prepared to spend. 我准备花多少钱是有限度的。
- The nutrient in the soil acts as a stimulus to growth/to make the plants grow. 土壤中的养分能促进植物生长。
- Limit your expenditure to what is essential. 你要把开销限制在必要的范围内。
- I must tell you that his patience has its limit. 我必须告诉你,他的耐心是有限的。
- He is fined$50 for exceeding the speed limit. 他因超速行车而被罚款50美元。