英汉例句

• the objectives of this study were to investigate the effect of insect and soil water contents on phenolic compounds and nitrogen concentrations in leaves of populus euphratica.

  研究了不同土壤水分条件下虫害胁迫对胡杨叶片中酚类物质含量及氮含量的影响。

• the pot experiment under the condition of different soil water contents indicated that the sprouting percentage of the grass seeds treated with water-retaining agent increased by 2.04%.

  通过种子发芽试验和盆栽试验研究了不同土壤水分条件下保水剂对高羊茅出苗及生长发育的影响。

• the results showed that occurrence and distribution of weed species were related closely with the location, soil water contents and management of the turf.

  调查结果表明，南京市草坪杂草的发生和分布与草坪所处地理位置、土壤水分条件及管理水平有密切关系；

• we found that the rate of soil water use increased and consequently more n was taken up by the plant and higher yields were obtained, when soil water contents were in a proper regime.

  结果表明：在适宜土壤含水量下，适当增施n肥，土壤水分利用率提高，植株吸n量和小麦产量增加；

• soil water contents and some leaf water physiological parameters in straw mulched and unmulched pear orchards were determined during 1997~1998.

  1998年对梨园覆盖秸秆后的土壤含水量和叶片几项水分生理指标进行了测定。

• after maize harvest, soil water contents in intercropped maize were grater than that in sole cropped.

  而在玉米收获后测定，间作玉米土壤含水量都高于单作。