覆盖作物

Biennial yellow-flowered Eurasian plant having aromatic leaves used as carminative or flavoring agent; widely cultivated especially as green manure or cover crop.

两年生欧亚植物，花黄色，其叶芳香，用做祛风剂或调味品；广泛栽培，尤其作绿肥或覆盖作物。

If possible, in the year before you plant potatoes, plant a cover crop to improve the soil and the potato production.

如果可能的话，在中土豆的前一年种一种覆盖作物来改善土壤，提高土豆产量。

Week-stemmed winter annual native to Mediterranean region for long established in southern United States; cultivated as a cover and pasture crop.

茎细弱并常外倾地面上而枝端向上、冬季结荚果的一种豆；原产于地中海地区，但作为一个归化种而在美国南部长期栽种，最近又作为覆盖作物和牧草而栽培。

This college was founded by merge of college of crop, plant protection and gardening, and its disciplines cover crop science, plant protection, and gardening, of which crop genetic breeding, crop nursing and farming, pathology of plant, agricultural entomology and pest prevention and cure, pomology science was national key disciplines.

该学院由原作物学院、植保学院和园艺学院三个学院合并建立，学科覆盖作物学、植物保护学、园艺学三个一级学科，其中作物遗传育种学、作物栽培学与耕作学、植物病理学、农业昆虫与害虫防治学、果树学为国家重点学科该网站介绍了给学院的专业设置、师资力量和科研工作等信息。

Cover crop using Mucuna munaneae as the third crop in the cropping system; zero tillage using herbicide or hand pulling for weed control; mucuna foliage and crop residues are used for mulch.

在种植制度中，用黎豆属作物作为第三季覆盖作物。用除草剂或人工除草实施免耕，把黎豆属作物叶片和其它作物残体，作为覆盖物。

European vetch much cultivated as forage and cover crops.

欧洲的一种野豌豆，通常被用来制草料和覆盖作物。

The objective of the research is to realizing the effects of mulching with different straw composts and thickness on landscape soil properties. The corn, wheat and coton straw composts were used as mulch with 3, 6 and 9 cm thick, to study the effects of landscape mulching with different straw composts and different thickness treatments on soil properties.

为了了解不同类型不同厚度的作物秸秆腐解物的覆盖在园林上的应用效果，采用玉米、小麦、棉花秸秆的腐解物为覆盖材料，覆盖3、6、9 cm，研究了不同秸秆腐解物及不同厚度覆盖对土壤理化性状的影响。

The history and present situation in application and reseache on various kind of mulches in plant cultivations was reviewed, evaluated and conclusion drawn as such: target orientated studies by simulation method on how mulch material and mulching technology effect on the light performance and the soil moisture, heat and salt transport are of high priority.

本文对各种地面覆盖材料在作物栽培中应用与研究的历史和现状进行了回顾、讨论和分析，得出了以下结论：覆盖材料对作物效应的研究，关键在于弄清不同覆盖材料及不同覆盖工艺对光及土壤水、热、盐运移的影响规律。

The results showed that the soil water content before sowing was obviously improved by the no-tillage and subsoiling, compared to that by the conventional tillage. According to the yield and WUE, treatments could be ranked from highest to lowest in turn as follows: ST, NT and RT.

结果表明；休闲期不同耕作方式对冬小麦播种前底墒具有明显的影响，与传统耕作方式相比，免耕和深松覆盖处理可以显著增加土壤含水率，具有良好的保墒作用；各处理以深松覆盖作物产量和水分利用效率最高，其次为免耕处理，深翻处理效果较差。

Nurse crop; cover crop

保护作物，覆盖作物

Objective: To study the effect of polycythemia on blood oxygen saturation.

裴蕾目的：观察RBC剧增而引起的高粘血症对血氧饱和度的影响。

Based on SIMPLER algorithm in the curvilinear body-fitted coordinates, the calculations were performed for Pr=0.7, Re=10~1000 on non-orthogonal non-staggered grids which are generated by elliptic equation systems.

采用曲线坐标系下压力与速度耦合的SIMPLER算法，数值研究了周期性渐扩渐缩波纹通道内脉动流动与换热情况，流动Re数的范围为10~1000，Pr数为0.7。