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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。
- 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。
- 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。
- 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。
- Maybe these nutrients are helpful to your health. 或许这些营养品对你的健康有帮助。
- Research on Limiting Nutrients of Phytoplankton Growth Potential in Shengli Oil Field Reservoir 胜利油田耿井水库浮游植物增长潜力限制性营养研究
- This soil contains valuable nutrients. 这种土壤含有宝贵的养料。
- 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。
- Plants draw minerals and other nutrients from the soil. 植物从泥土中吸收矿物质和其他养料。
- What's the speed limit on the motorway? 高速公路的速度限制是多少?
- He was had up for exceeding the speed limit. 他因超速行驶而遭控告。
- A mixture of ground grain and nutrients fed to livestock and fowl. 麦麸由谷糠和营养物质调成的混合物，用以饲养牲畜和家禽
- He weighed in at several pounds below the limit. 他赛前量体重比规定限度少几磅。
- Plants absorb minerals and other nutrients from the soil. 植物从泥土中吸收矿物质和其他养料。
- 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。
