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- Before the wheat jointing stage,the concentration of DOM in rhizosphere soil was consistent with that in the bulk soil,and increased drastically after that period. 在小麦拔节期之前;各处理根际DOM含量的动态变化趋势和与之对应的非根际DOM变化趋势基本一致;没有显著差异.
- These protozoa could carry 32P from bulk soil to rhizoshere while crossing the root-box net and reached to rhizosphere.The maize thus absorbed more 32P. 原生动物能够穿过根箱的隔离网，携带32P向根际运移，从而增加玉米对32P的吸收，改善玉米磷素。
- There was no significant difference of AOB abundance between root surface soil and rhizosphere soil, but they were all significantly higher than those in the bulk soil. 根表和根际土壤AOB数量无显著差异，但二者显著高于土体土壤AOB数量。
- The results from many researches showed that phosphate-solubilizing bacteria are common in soil, and their amount and species number in rhizosphere are greater than in bulk soil. 众多研究表明，土壤中普遍存在能够分解矿质态磷和有机态磷的微生物，而且植物根际土壤的解磷细菌不仅数量多于土体，其种类也明显多于土体土壤。
- In maize rhisophere, maize root reduced the percentage of antibacterial and antifungal by 59.7% and 45.2% compared with maize bulk soil under plastic film mulching. 覆膜处理中，玉米根系可使抗细菌、抗真菌拮抗菌比率较根外分别降低59.;7%25、45
- The available nitrogen and phosphorus contents in root rhizosphere were greater than those in bulk soil, while its content of the available potassium was lower. 根际碱解氮和有效磷含量高于非根际土壤，其速效钾含量却低于非根际土壤。
- Analysis using plate count revealed a reduction trend in the number of culturable bacteria both in rhizosphere and bulk soil as Rehmannia glutinosa continuous cropping problem. 结果表明，地黄连作引起土壤根际、根外细菌数量减少；
- AOB abundance in both root surface and rhizosphere soils significantly decreased with the incubation time, while those in the bulk soil indicated no difference as the time passed. 水稻根表和根际AOB数量随水稻生长而显著降低，而土体土壤AOB数量无显著变化。
- In solonchak soils, the activity of the three soil enzymes in the rhizosphere is generally higher than in bulk soils while that in cultivated gray-desert soils are lower. 结果表明：过氧化氢酶、脲酶和蛋白酶在两种土壤的植物根际表现出相反的变化，荒漠盐土中，根际土3种酶的活性均高于非根际土；
- Do they charge carriage by bulk? 他们是否按体积计算运费？
- In most markets you can buy fresh fruit in bulk. 在大多数市场上可买到散装新鲜水果。
- The bulk of the work has already been done. 大部分工作已经完成。
- The elephant lowered its great bulk. 大象蹲下它庞大的身躯。
- Some plants push their roots deep into the soil. 一些植物的根深深长入土中。
- Such crops won't grow in limy soil. 这类作物不能在石灰质的土壤中生长。
- He heaved his huge bulk out of the chair. 他挺起巨大的身躯，从椅子上站了起来。
- What shall we grow in this alkaline soil? 我们应该在碱性土壤里种什么？
- The eldest son inherited the bulk of the estate. 长子继承了遗产的大部分。
- There are a lot of worms in the soil. 泥土中有许多蠕虫。
- Water has permeated (through) the soil. 水已渗遍那片土壤。
