Haiti's soil is so thin, even massive amounts of chemical fertilizers can't restore soil structure.
海地的土壤非常贫瘠，即使施以大量化肥也无法恢复土壤结构。
Another recent study found that a single tillage does not harm yield or soil structure in land that is normally not tilled.
另一项最新研究发现，单独一次耕作不会对通常不耕作的土地产量或土壤结构造成破坏。
The mechanical properties of natural sedimentary soils evidently differ from those of corresponding reconstituted clays due to the influence of soil structure.
天然沉积土由于结构性的影响，通常具有与相应重塑样截然不同的力学性质。
It is known that the behavior of unsaturated soil depends not only on the mineralogical composition, soil structure, and stress state, but also on soil suction.
研究表明，非饱和土的工程性质不仅取决于土的组成、结构和应力状态，还与土中的吸力密切相关。
The deterioration of soil structure is difficult to remedy.
土壤结构的恶化很难挽回。
Disturbance of soil structure leads to the falling of soil strength.
由于基坑开挖过程中土体结构受到扰动，导致土体强度降低。
They will grow good cereal crops so long as soil structure is maintained.
只要土壤结构能够保持，他们就能够种出优良的谷物。
The critical state model is an important part of unsaturated soil structure theory.
临界状态模型是非饱和土结构理论中的一个重要的内容。
Soil organic matters are an important factor affecting the formation of soil structure.
土壤有机质是形成土壤结构的重要因素。
Results indicated that soil lithology, rock cranny and soil structure had a certain impact on quality of megranate.
结果表明土壤母质岩性、母岩裂隙、土壤结构对石榴品质有一定的影响。
A mixture of decaying organic matter, as from leaves and manure, used to improve soil structure and provide nutrients.
堆肥腐烂有机体的混合物，如树叶或粪便，用来改善土壤结构并增加土壤养分。
Reclaiming virgin land and plowing cropland destroy soil structure and accelerate the loss of soil organic carbon (SOC).
开垦荒地和翻耕农田导致土壤结构破坏，加速土壤有机碳（SOC）损失。
In this paper, the dynamic analysis for sliding isolated structures considering the soil structure dynamic interaction is performed.
介绍了考虑土结构动力相互作用的滑移隔震结构的动力分析方法。
Ground water is different from surface water, therefore the groundwater pressure applied on underground structure is decided by soil structure.
地下水不同于地表水，其作用到地下结构上的外水荷载受到土体结构性的影响。
The history of soil structure study is retrospected and the classification of the approach to quantitatively express the soil structure is made.
回顾了土结构性研究的历史。对土结构性的定量化研究方法进行了分类。
The pore is one of important mark of soil structure and its characteristics have substantial influence on engineering geological properties of soil.
孔隙是土结构的重要标志之一，其特征对土的工程地质性质有很大影响。
Organic slow-release fertilizer for rice can improve soil structure and fertility, promote growing development, increase yield, quality and fastness.
水稻施用有机生物长效水稻专用肥能改善土壤结构，提高土壤肥力，促进水稻生长发育，提高作物产量，改善品质，提高抗性。
How to evaluate the effects of soil structure on mechanical behavior for natural sedimentary soils is an important issue in geotechnical engineering.
如何评价土结构性对天然沉积饱和土的力学性状的影响是一个非常重要的研究课题。
In addition, plant root can also influence soil structure and water content, so the influence of plant root on the soil potential should not be neglected.
另外由于植物根系影响土壤结构与含水率，所以根系对土壤水势的影响也不可忽略。
In this paper the soil structure is divided into three levels: microcosmic, tiny and macroscopical, and also gives the physics meaning of the tiny structure.
文中将土的结构划分为微观、细观与宏观结构三层次，并定义了细观结构的物理涵义。
Increased soil enzyme activity means that the amended soil structure and properties were very beneficial to the reproduction and growth of soil microorganisms.
土壤酶活性的提高表明改良后的土壤结构、性能更适宜土壤微生物的繁殖和生长，土壤中的微生物量增加。
Soil organic matter content was increased, soil structure was improved, the vegetation of discarded field was restored, and the first production was progressed.
土壤有机质含量增加，土壤结构得到改善，弃耕地植被得到恢复，第一生产力提高。
According to soil fertility and soil structure in the loess plateau, the experiment of fertilizer amount was carried out with ammonium nitrate and calcium superphosphate.
根据黄土丘陵区土壤肥力特点及土体结构，选用硝酸铵和过磷酸钙作为试验肥料，进行了不同施肥量试验。
The soil animal is a major component of the terrestrial ecosystem, and plays an important role in material recycling, energy conversion, and soil structure forming and improving.
土壤动物是陆地生态系统的重要组成部分，对系统内物质的循环、能量的流动、转化以及土壤结构的形成和改良具有重要作用。
It could enhance the tolerance of citrus to drought and cold, improve the soil structure and fertility, increase the quality and yield of citrus fruit, and reduce the cost of control.
能提高树体的抗旱和抗寒能力，改善土壤结构，增加土壤肥力，提高柑桔品质和产量，降低防治费用。
Soil aggregate is the main component of soil and the basic unit of soil structure. Its formation and stability are realized by the effects of all kinds of cementing substance in soil.
土壤团聚体是土壤的重要组成部分、土壤结构的基本单位，其形成和稳定主要是通过土壤中各种胶结物质的胶结作用实现的。
According to the intractable problems mentioned above, the author researches into the theories and applications of deep well dewatering for soft soil structure underground confined water.
本文正是基于以上几个实际问题，对软土二元结构这一特定的地层深基坑降低承压水技术和应用展开研究。
Soil productivity is strongly linked to SOC because SOC plays important roles in improving soil structure, soil water holding, infiltrating and capacities, and the nutrients supply to plants.
SOC在改善土壤结构、保持水分、防止土壤侵蚀和退化、提供植物养分特别是氮素等方面具有重要作用。
Soil productivity is strongly linked to SOC because SOC plays important roles in improving soil structure, soil water holding, infiltrating and capacities, and the nutrients supply to plants.
SOC在改善土壤结构、保持水分、防止土壤侵蚀和退化、提供植物养分特别是氮素等方面具有重要作用。
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