肥沃的土壤

Moreover, Heilongjiang blackland boasts humus soil better than other kind, with humus content 5 -10 times higher than yellow and red soils.

之所以有如此高的赞誉与评价，概因土壤肥沃：黑龙江所处的寒地黑土土壤的肥力、理化性质和土质结构都优于其他各类土壤，仅就腐殖质而言，就是黄土和红土的5倍至10倍。

The requirement lives in fecund, loose sandiness soil.

要求生活在肥沃、疏松的沙质土壤里。

The paper fristly compared the fertile soil with the incinerated sterile soil on the number of micro-algae , soil pH value , soil organic matter soil available phosphorus and soil nitrogen.And then, the author put fertile soil, which included micro-algae, proportionally into sterile samples and cultivated them respectively under illumination condition (micro-algae can live and reproduce)and dark condition(micro-algae will die in some time).The above indices were measured in 0, 30, 60 and 90days respectively, The analyse of the interrelation between the change of micro-algae"s number and the changes of soil pH value, soil organic matter, soil available phosphorus and soil nitrogen indicated:Soil micro-algae which were native to fertile soil conld adapt to the changed circumstance and light acted as a decisive role to the distribution of soil micro-algae.Under dark condition,the micro-algae"s number declined gradually and went to zero in the end,while under illumination condition ,on the 90th day, the micro-algaes number of per gramme was 6-7 times more than that of the beginning.

本文首先对肥沃土壤与经高温焚烧后的贫瘠土壤中的微藻数量、土壤pH值、有机质含量、有效磷含量和全氮量进行比较研究，然后将包含微藻的绿化苗圃地肥土按不同比例接种进入贫瘠土样中，分别在光照条件和黑暗条件下进行培养，在0天、30天、60天和90天分别检测以上指标，比较有光条件和无光条件下，即有藻条件和无藻条件下贫瘠土样所发生的变化，并分别对微藻数量的变化与土壤pH值、有机质含量、有效磷含量和全氮量的变化之间做相关性分析，以评估肥沃土壤中的微藻接种进入贫瘠土壤后的生长情况以及对贫瘠土壤的改良作用。

Not tall to edaphic requirement, be fond of the relief tall dry, small acidity soil that contains a lot ofhumus, blame with earthy layer the sandiness soil with fecund and deep, wet, good drainage is most appropriate.

富含腐殖质的微酸性土壤，尤以土层深厚。肥沃湿润。排水良好的沙质土壤最为适宜。

Mucuna takes nitrogen from the air and places it in the soil enriching it.

Mucuna能把空气中的氮转移到土壤中并使土壤变得肥沃。

Orange is short of calcic disease lamina advocate fade is green near arteries and veins and Xie Yuan, fade green place produces withered spot to fall off after, vimineous top is down withered dead.

当土壤偏酸，或土壤中氮。钾。镁偏多时，都轻易造成土壤中缺钙。所以应适当施用石灰，可中和土壤中酸，提高置换性钙的含量和肥沃度，能减少缺钙症发生。

But young forests on good soil will be more productive,because of increased carbon dioxide levels.

但是生长在肥沃土壤上的新生的森林，因为二氧化碳含量的增加，将会更加肥沃。

The shovelfuls of loam, black as 'et, brought there by the river when it was as wide as the whole valley, were an essence of soils, pounded champaigns of the past, steeped, refined, and subtilized to extraordinary richness, out of which came all the fertility of the mead, and of the cattle grazing there.

一铲一铲的黑土，像墨玉一样漆黑，是在河流还同山谷一样宽阔时被冲到这儿的，它们是土壤的精华，是过去被打碎的原野经过浸泡、提炼，才变得特别肥沃，从这种土壤里又长出丰茂的牧草，喂养那儿的牛群。

Mucuna takes nitrogen from the air and places it in soil, enriching it, professor Charles Wortmann, one of the Nebraska researchers, notes that the plants also reseed themselves, another method that the scientist suggest is to plant sorghum during one growing season, fallowed by cowpea the next.

藜豆从空气中吸收氮再传输入土壤，肥沃土壤，Charles Wortmann教授，纳布拉斯加研究者之一，指出这种植物也能自我繁殖，科学家们建议的其他方法是在生长的季节种植高粱，接着再种豇豆。

Mr Magdalena placed seeds and seedlings in pots of loam in small containers of warm water, which kept the water at the same level as the top of the soil.

玛格达雷娜先生把种子和幼苗放在有肥沃土壤的盛有温水的小容器里，使水平面和土壤表层处于同一高度。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。