Natural soil fertility is dropping in many areas because of continuous industrial fertiliser and pesticide use, while the growth of algae is increasing in lakes because of the fertiliser run-off.
在很多地区，由于工业化肥和农药的持续使用，导致自然土壤的肥力正在下降，然而化肥的流入却导致湖泊中藻类生长得越来越快。
Soil fertility qualities have differences in various degree.
土壤肥力质量具有一定的差异。
From the standpoint of soil fertility, it is of fundamental importance.
从土壤肥力的角度来看，这是极其重要的。
Density had more significant effects on wheat yield than soil fertility.
密度对小麦产量的影响比土壤肥力更为显著。
The methods involve soil fertility management as well as reduced tillage.
这些方法包括管理土壤肥力和减少耕作。
Soil aggregate stability is a key property of soil, and reflects soil fertility.
团聚体稳定性是土壤的基本性质，反映了土壤肥力的高低。
Principal component analysis was used to derive soil fertility variation factors.
运用主成分分析选取土壤肥力变异因子。
No one knows the consequences that will have on soil fertility and the human body.
没有人知道这个对土壤肥力和人类产生的影响。
Soil enzyme activity increases with soil fertility among the same ecological zone.
在同一生态区，土壤磷酸酶活性随肥力水平的升高而增大；
The obtained composting products should become better regulator for soil fertility.
得到的污泥产品成为性质优良的土壤质量调节剂。
Since fresh black soil was cultivated, soil fertility has showed a decreasing trend.
黑土开垦种植后，土壤肥力呈下降趋势。
The obtained composting products certainly become better regulator for soil fertility.
得到的污泥产品成为性质优良的土壤质量调节剂。
So enzyme activity could be used as an index for evaluation of tidal flat soil fertility.
因此，土壤酶活性可以作为该土壤肥力的指标之一。
Low soil fertility has slowed agricultural production in parts of the continent for years.
土壤的低肥力使这块大陆的许多地方的农产品在逐年递减。
According to Kramer, Haiti's problem isn't lack of soil fertility, but lack of soil itself.
据克雷默说，海地的问题不在于土壤贫瘠，而在于缺少土壤。
With increase of matter input, the restoration of soil fertility quality was accelerated gradually.
随着物质投入量的增加，土壤肥力质量的恢复也逐渐加快。
Little rain and poor soil fertility are problems in that area, as in other parts of southern Africa.
少于和土地不够肥沃是那个地区的问题，同样也是南部非洲其他地区的问题。
Effects of nitrogen rates on grain yield and quality of wheat in different soil fertility were studied.
在高、低两种肥力土壤下，研究了施氮量对小麦子粒产量和综合品质性状的影响。
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。
Combined measures of no-tillage, mulch straw and ridge cultivation can improve and increase soil fertility.
免耕、垄作、秸杆覆盖相结合能改善并维护土壤结构，提高土壤肥力。
This could be confirmed by the organic matter and nitrogen circulation and the improvement of soil fertility.
这可以从有机物质、氮素的循环和土壤肥力因素的改善得到证明。
Soil microorganism and soil enzyme activity is one of the most important indexes influencing the soil fertility.
土壤微生物和土壤酶活性是反映土壤肥力最为重要的生物学指标之一。
Soil organic matter and nutrients(e. g. nitrogen, phosphorus and potassium) play important roles in soil fertility.
土壤有机质和养分（氮、磷和钾等）是土壤肥力重要的物质基础。
That is to say, there was enrichment tendency for phosphorus, especially for Po, with the increase of soil fertility.
说明土壤磷素随肥力水平提高有富集趋势，主要是与土壤有机磷的富集有关。
Study on the different characters of upland red soil fertility under steady cultivation systems by different utilizations.
研究了稳定耕作系统下的不同利用方式的高原山地红壤肥力变化特征。
Possible causes of the vegetation shift include declining rainfall, growing human population and decreasing soil fertility.
植被转移的可能原因包括降雨减少，人口增长及土壤肥力的下降。
Author studied the effect of soil fertility on the change of protein components content and processing quality in wheat kernel.
研究了基础土壤肥力对小麦籽粒蛋白质组分含量变化及加工品质的影响。
We should reconnect with the wisdom of our ancestors, for whom muck and compost were some of the only ways to improve soil fertility.
我们应该重新运用祖先留下的智慧，对他们来说，淤泥和堆肥是改善土壤肥力的唯一方式。
Crop rotation is a simple and effective technique used in organic agriculture to reduce the need for pesticides and improve soil fertility.
轮作是应用于有机农业上的一种简单而有效的技术，能减少农药的使用和提高土壤肥力。
Crop rotation is a simple and effective technique used in organic agriculture to reduce the need for pesticides and improve soil fertility.
轮作是应用于有机农业上的一种简单而有效的技术，能减少农药的使用和提高土壤肥力。
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