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1·There are hundreds of related plants, including rubber trees, trees that produce castor and tung oil, and the cassava, a root crop.

大戟科有数百种相关植物，包括橡胶树，产生蓖麻油和桐油的树，以及木薯这种块根作物。

2·According to the need of crop root research, the South China Agricultural University crop root laboratory was built.

根据作物根系研究的需要，设计和建造了华南农业大学作物根系研究室。

3·There was also a significant correlation between the root activity, root weight and soil potassium uptake of the same crop.

此外，不同土壤上同种作物的根系生物产量、根系活力与作物吸钾量间也呈正相关。

4·Cassava is a starch crop of which the product harvested is the root tubers.

木薯是淀粉作物，收获的产品主要是块根。

5·The organisms from crop root exudates were collected directly by putting slide onto root surface and observed the organisms on the slide and root surface by fluorescence microscope.

利用改进根箱法对玉米和花生根际生物进行了原位采样和观察。 采用载玻片贴片方法直接采集到作物根系分泌物中的生物，并用荧光显微镜进行观察。

6·The study status, the existing problems and the research in the future for the crop root water uptake models were summarized in this paper.

综述了作物根系吸水模型的研究现状、存在问题和研究展望。

7·Under intensive cropping with retention of crop residue management regimes, soils can become suppressive to Rhizoctonia root rot.

保留作物残体的精耕栽培制度可使土壤变为对病害有抑制作用的抑病土。

8·According to previous research and data, this paper review some aspects how quality of some crops such as cereal crop, root and tuber crop, vegetable and flue-cured tobacco is affected by potassium.

根据前人的资料和研究，对钾如何影响谷类作物，块根、块茎作物、蔬菜及烤烟品质的问题作了简要评述。

9·The principle of GREENLAB plant model can apply to simulate morphology and biomass partitioning of crop root system.

GREENLAB模型的原理可以应用于对作物根系形态结构和生物量分配的动态模拟；

10·The tree root distribution and management study is to select tree root type which fit in with the needs of crop.

其中林木根系分布与管理研究内容是通过对林木根系类型的筛选，选择与农作物根系矛盾较小的树种；