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- The most important problems research had to solve were: (1). build-up and maintenance of soil fertility; (2). avoid soil hardpan and (3). control soil erosion. 研究要解决的最重要问题是：（1）积累和维持土壤肥力；（2）避免土壤硬磐；（3）控制土壤侵蚀。
- The Impact of Soil Fertility on the Yield of Phyllanthus Emblica L. 土壤肥力对余甘子产量的影响。
- maintenance of soil fertility 维持土壤肥力
- The status of soil aggregates is an important factor affecting soil fertility. 土壤团聚体和水稳性团聚体的状况是影响土壤肥力的一个重要因素。
- It's rich there because of the fertility of soil. 因为土地肥沃，那儿很富裕。
- Artifical improvement of soil fertility in a regraded forest ecosystem by using municipal sewage sludge. 城市污泥对退化森林生态系统土壤的人工熟化研究。
- Because of the and improvement of soil fertility aeration,the absorption of N, P, and K nutrients by rice plant was improved in same manner. 而且由于土壤肥力的提高以及土壤通气状况的改善,也促进了水稻对N、P、K养分的吸收。
- Maintenance of PC is in my element. 我对电脑的维修保养很在行。
- The conclusion is: different behaviors of the G. pentaphyllum populations have different sensitivities to the change of soil fertility. 总之,绞股蓝种群的不同行为对土壤肥力变化的敏感性各异。
- The correlation among soil microorganism quantity, enzyme activity and soil nutrient content is the significant, it can be used as evaluation index of soil fertility. 土壤微生物数量、酶活性与土壤养分间呈显著相关关系，可作为评价土壤肥力的指标。
- Since the urease activity in soil is close correlated with the growth of stem lump mustard and soil metabolism, which is a key indicator of soil ecology and soil fertility. 土壤脲酶活性高低反映出茎瘤芥生长和土壤代谢状况，可作为茎瘤芥土壤生态和肥力水平的一个良好指标。
- He had to work hard for the maintenance of his family. 他为了养家不得不去拼命工作。
- Recently, much attention has been paid to soil fauna because they play an important role in nutrient cycling as a potential bioindicator of soil fertility in the forest ecosystem. 土壤动物群落是土壤生态系统的重要组成部分之一，是森林生态系统物质循环和能量流动的参与者与推动者，对森林土壤生态系统的形成、发育以及肥力的提高具有重要作用。
- Environmental services Functions performed naturally by forests, such as maintenance of waterflow patterns, protection of soil, support of economically important living resources and regulation of climate. 环境服务,环境贡献指森林自然完成的功能,如维持水流的格局,土壤保护,对于经济上重要的生物资源的支持和气候的调节。
- There are some clods of soil on the mat. 垫子上有些土块。
- Higher nematode densities were found under V.zizanoides cv.Karnataka and hybrid pennisetum,indicating that the two species have good potential for the improvement of soil fertility. 在所选的植物中,Karnataka和杂交狼尾草在土壤改良和土壤生物学效应方面有更好的潜力。
- This kind of soil contains much alkali. 这种土壤含碱丰富。
- The major problem is the maintenance of the child. 主要的问题是孩子的抚养费。
- In west area, the efficient farming technique can change slope landforms, reduce soil erosion, increase the ability of soil conservation, improve soil fertility and increase crop yield. 在西北干旱地区实施有效的耕作技术，对改变坡面微地貌、减少土壤侵蚀、增加土壤抗性、蓄水、保土性能、培肥地力和提高作物产量均有显著作用。
- Repair and maintenance of machinery and equipment. 机械及设备的维修和保养;
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
