soil n. 1.泥土,土壤;土质。 2.土地,国土。 3.滋生地,温床。 4.农业生活,务农。 clayey [sandy] soil 黏[砂]壤。 poor [rich] soil 瘦[肥]土。 high soil 轻质土。 alluvial soil 冲积土。 arable soil 耕地。 a tiller [child, son] of the soil 农民;本地人。 the lord of the soil 领主,地主。 soil conservation 土壤保持。 soil invaders 【农业】土壤寄居菌。 on foreign soil 在外国。 one's native [parent] soil 故乡,祖国。 n. 1.脏东西,污物,污秽,污斑。 2.粪尿,肥料。 a soil pipe 污水管。 night soil 粪便。 vt. 1.弄脏,弄污;污染,污损。 2.污辱,败坏。 3.给…上粪[施肥]。 vi. 被弄脏,变脏。 soil one's hands with 〔比喻〕因…弄脏手;染手。 It soils easily. 那东西容易脏。 soil a field 给田施肥。 soiled clothes 脏衣服。 vt. (给畜舍内畜牲)喂青草[青饲料];(用青饲料给畜牲)通便;催肥。 soiling crops 青饲料作物。
acid adj. 1.酸味的。 2.【化学】酸的,酸性的。 3.〔比喻〕尖酸刻薄的,易怒的。 n. 1.酸味物。 2.【化学】酸。 adv. -ly ,-ness n.
Molybdenum deficiency is found when legumes are grown on acid soils . 在酸性土壤上种植豆科作物时常发现缺钼。
Sugar-factory lime sludge had a more favorable influence in improving the structure of acid soils than limestone . 糖厂的石灰沉渣,在改良酸性土结构上,要比石灰石粉有更良好的影响。
Acid soils often contain substantial concentrations of iron and aluminum hydroxides 酸性土壤富含铁和铝的氢氧化物。
Approximately 20 million ha are presently abandoned to savanna on predominantly poor nutrient status acid soils 到目前为止,约有2000万公顷已弃荒成为热带稀树草原,土壤酸性,养分极少。
Severe “ whiptail ” condition in field specimen from and acid soil . bare midribs or very narrow residual lamina 甘蓝缺钼“鞭尾症:在田间试验和酸性土壤上有严重的鞭尾症状,中脉突出,狭小的叶片残留。
Al toxicity is a major limited factor for crop production and quality in acid soil , and it has become the focus of ongoing research in the area of plant stress physiology and genetics 铝毒是酸性土壤影响作物生长的主要原因,已成为植物胁迫生理学与遗传学的重要研究内容。
In acidic soils , its toxicity is considered to be the most limiting factor for plant productivity . based on an estimate of the world ' s potentially arable land resources , it has been estimated that most of the cultivable area ( 78 . 4 % ) is composed of acid soils 全世界有39 . 5亿hm ~ 2酸性土壤,其中可耕土壤面积为1 . 79亿hm ~ 2 ,如何解决酸性土壤的铝害问题已经是不容忽视的一项重要课题。
In addition to nutritional factors , the productivity of many acid soils is affected by physical factors that include low water holding capacity ( oxisols , spodosols ) and susceptibility to crusting , erosion and especially compaction ( oxisols , ultisols ) 除了养分因素外,许多酸性土壤的生产力受物理因素的影响,包括持水量低(氧化土,灰化土)和对结壳、侵蚀及特别是压实(氧化土、老成土)敏感。