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- China has entered a period of low fertility level since1990' s. 计划生育行政执法作为计划生育行政管理的基本手段和方式,是整个计划生育行政管理活动中一个必不可少的中间环节。
- The 100-seed weight was significantly enhanced for APRF under all three fertilization levels but for FPRF only under high level when compared to that of CF treatment. 玉米百粒重表现为，与均匀施肥相比，交替施肥显著增大，固定施肥仅高肥水平下明显增加。
- The difference of fertility level of the main purple soil , rice soil and yellow soil is bigg. 主要土壤类型紫色土、水稻土、和黄壤,肥力水平差异较大,全量、有效态含量在不同土壤类型不一致。
- Whether or not the low fertility level can be stabilized is a matter of great importance and one that would affect the overall situation. 能否稳定低生育水平，事关全局，影响重大。
- In the mean time,we also analysed changing laws of Lou soil?s physical properties in heavy loam soil region under different fertility level. 同时 ,还着重分析了重壤带的 土娄 土在不同肥力水平下其物理性质的变化规律。
- Under same fertilizer level, rational close planting and increase of basic seedlings were contributive to increase of yield. 在相同的肥力水平下，增加基本苗，合理密植有助于提高产量。
- Urease activity may indicate the fertilizer level of total N, alkaline N, and organic matter in vegetable garden and orchard. 脉酶活性可表征果园地、菜园土的全氮、碱解氮和有机质的肥力水平。
- The Effects of Cutting Frequency, Seeding Ratio and Nitrogen Fertilizer Level on the Yield of Mixture Pasture of the Hemarthria compressa and Trifolium repens. 刈割频度、播种比例和施肥量对牛鞭草和白三叶混播草地牧草产量的影响。
- Do some fertilization for the garden! 给花园施些肥料吧！
- Since 1990, the fertility level in China has been stably declining with its TFR dropping from 2.29 in 1990 to 1.80 in 2001, less than the replacement level. 中国自1990年以来，生育水平呈平稳下降趋势，生育率从1990年的2.;29下降到2001年的1
- In general nitrogen fertilizer level, the biomass and the yield of intercropped wheat is compared with monocropping increased 30.6% and 12.8% respectively. 在常规施氮水平下，间作小麦生物量较单作小麦高30.;6%25，产量较单作增加了12
- Effects of Fertilizing Levels on Output and Quality of Artemisia annua L. 青蒿；施肥水平；产量；青蒿素含量
- Effects of fertilizer level on plant growth, development and yield of muskmelon in spring and autumn were studied under organic and conventional production systems. 摘要在有机和常规两种生产系统中，研究了不同施肥水平对春秋两季甜瓜生长发育和产量的影响。
- I'd like a room on the upper level. 我想要楼上的房间。
- We need a mechanical digger to level the ground. 我们需要一台挖掘机来平整土地。
- An optimum planting density must be employed to get a high yield, depending upon soil condition, varietal tillering ability, fertilizer level, number of plants per hill, and planting season. 获得高产必须采用最适植株密度，视土壤条件、品种分蘖力、肥力水平、每蔸苗数和播种季节而定。
- I hope you'll be on the level with me. 我希望你对我坦率布公。
- She needs to win this point to level the score. 她要赢得这一分才能将比分扳平。
- Keep a level head and phone the Fire Department. 保持冷静，打电话给消防署。
- The chloroform fumigation-incubation method was used to measure the biomass-C and-N ofsoils with different fertility levels. 应用氯仿熏蒸培养法测定不同肥力水平的土壤生物量-C和-N。
