土壤微生物

It is an item of newest scientific findings incorporating microbiolody , agrology , plant nutrition into an organic whole, mainly take many kinds of function type biological active funguses as the core , regard such organic matter as innoxious and treated beasts and birds excrement and urine , humic acid ,etc. as carriers, while cooperating with right amountly , micro- nutrition element, reach and improve the soil microorganism to trend towards the department, foster and apply fertilizer purpose of soil, fertilizer add nitrogen synergist and phosphorus , potassium chela mixture also, can apply fertilizer once only , does not need to topdress again in the whole breeding time.

是一项集微生物学、土壤学、植物营养学为一体的最新科研成果，主要是以多种功能型生物活性菌为主，以无害化处理后的畜禽粪便、腐殖酸等有机质为载体，配合适量中、微量营养元素，达到改良土壤微生物趋系，培肥土壤的目的，肥料中还添加氮肥增效剂和磷、钾螯合剂，可以做到一次性施肥，全生育期不需再追肥。

The effect of azotobacter fertilizer on living activity, soil fertility, yield, total nutrient and crop quantity is studied at the different level of using nitrogen .in the calciform soil by the rape potted plant biology analogue experiment, in order that the best scope of valid applying azotobacter fertilizer is determined. It can offer theoretic basis for searching ways of biology controlling to high yields and qualities, optimization directions for products of special compound fertilizer and valid using.

本文通过油菜盆栽生物模拟试验，研究了在不同施氮水平下，石灰性土壤上固氮菌肥料对土壤微生物活性，养分以及油菜的生物产量、全量养分和品质的影响，旨在确定固氮菌肥料有效应用的最佳土壤氮素范围，为探求油菜作物高产优质的生物调控途径及专性生物复合肥的优化配比提供理论依据。

Soil microbes are the important components of soil ecosystem, exhibiting the important role in biogeochemical cycle. They are very sensitive to the changes of soil environments.

土壤微生物是土壤生态系统的重要组分，在生物地球化学循环过程中有重要的作用，对土壤环境变化和胁迫的反应十分灵敏。

To investigate variation of soil bacteria community in response to the change in the above-ground vegetation, soil samples were collected at three sites, i.e. bamboo groves, mixture of bamboo and broadleaf tree and broadleaf forest. To explore variation of the soil bacterial structure, 16S-rDNA-V3-fragment-base DGGE (denaturing gradient gel electrophoresis) and clone sequence BLAST technologies were applied.

为了解毛竹人侵天然林后地下土壤微生物多样性的变化，分别采集了毛竹纯林、竹阔混交林和原始天然阔叶林下的土壤样品，应用建立于165 rDNA V3区片段的变性梯度凝胶电泳和克隆测序比对来研究土壤细菌结构的变化。

The surface of root soil was markedly more favorable to microbes and enzyme in every layer of bio—salver, with quantitative of soil microbes in the order of bacteria, actinomycete and epiphyte.

结果表明：土壤微生物和酶在植物根际有着明显的根际效应，各级托盘中微生物在根际的数量均大于相应微生物在非根际的数量；在各级托盘中均存在细菌、放线菌＞真菌的数量关系。

To understand the impact of plant canopy photosynthate inputs on soil nematode communities, a large-scale tree girdling experiment was conducted in a evergreen broad-leaved forest of Ailao Mountains.

3为了解植物光合产物通过根系实现的地下资源输入对土壤生物的影响，本研究通过大规模的环割实验切断植物向地下运输光合作用产物的通道，研究了环割前后土壤微生物生物量、土壤线虫密度和多样性的变化。

The purpose was to study the change of edaphon carbon source and nitrogen source as well as microorganism quantity and microbial community structure after planting the konjac.

［目的］研究种植魔芋后土壤微生物碳源和氮源以及微生物量和微生物群落结构的变化。

Invasion of Spartina grass has induced significant decline of the soil ecological properties of the wetlands.

土壤有机碳、土壤微生物生物量碳、氮含量以及土壤蔗糖酶与磷酸酶活性对滨海湿地土壤退化的反映最为强烈，可以作为指示性指标。

The results indicate that:(1)Compare with the comparion, the soil physics character are improved after vegetation restortion , the soil unit weight in cyclobalanopsis glauca, Pinus elliottii, Robinia pseudoacacia , mixed forest and fire slash shrub separatly are 1.525g/cm~3, 1.426 g/cm~3, 1.625 g/cm~3, 1.482 g/cm~3, 1.423 g/cm~3. We can find the soil unit weight in other forest all bigger than the comparion (1.580 g/cm~3) except Robinia pseudoacacia .All these mean forest soil is looser and better capacity for aerated and dank.

结果表明：(1)植被恢复后林地土壤物理性质有良好的改进，青冈、湿地松、刺槐、混交林、火烧迹地灌丛容重分别为：1.525g/cm~3、1.426g/cm~3、1.625g/cm~3、1.482g/cm~3、1.423g/cm~3，除刺槐外其他林地均低于对照(1.580g/cm~3)，上述几种林分的孔隙度分别为：45.872%、51.956%、44.093%、50.485%、55.648%、47.228%，说明林地内土壤较对照更为疏松、通气透水能力更强，更有利于土壤微生物的活动，为研究区土壤肥力的提高奠定了基础。

Effects of complex microbial fertilizer on tomato bacterial wilt and soil microbial diversities were studied by agar media test and BIOLOG GN micro-plate culture.

采用微生物培养和B IOLOG GN2微平板培养，研究了施入自制的复合微生物菌剂对番茄青枯病和土壤微生物多样性的影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。