azotobacter

简明释义

英[əˈzəʊtəʊˌbæktə(r)]美[eˈzotəˌbæktər]

n. 固氮菌

英英释义

单词用法

同义词

反义词

例句

1.The number of aerobic azotobacter decreased with the successive cropping years increasing but was higher than CK and as 311.21%, 120.77% and 46.07% times as CK respectively.

根际土壤自身固氮菌总数随连作年限的增加逐年减少，但均高于对照，分别比对照增加了311.21%、120.77%和46.07%。

2.The number of aerobic azotobacter decreased with the successive cropping years increasing but was higher than CK and as 311.21%, 120.77% and 46.07% times as CK respectively.

根际土壤自身固氮菌总数随连作年限的增加逐年减少，但均高于对照，分别比对照增加了311.21%、120.77%和46.07%。

3.The compound fertilizer improved the population of azotobacter and potassium bacteria, and the phosphate ammonium enhanced the population of phosphobacteria.

复合肥有利于提高固氮菌和钾细菌数量，磷酸铵促进了磷细菌数量的增长。

4.Scientists were working with a microbe called Azotobacter vinelandii, which is found around the roots of various food plants.

科学家利用的微生物名叫棕色固氮菌(Azotobactervinelandii)，它们存在于各种粮食作物的根系。

5.The paper introduces the method of making azotobacter fertilizer by biological process and test method of bacteria.

本文介绍了生物法制固氮菌肥的方法，以及菌种的检验方法。

6.As to same tea age, the population of azotobacter became smaller with the soil fertility decrease.

相同茶龄的土壤中固氮菌的数量随土壤肥力的降低而减少；

7.The numbers of bacteria, azotobacter and fungi were highest in spring.

细菌、真菌和自身固氮菌数量春季最多。

8.The presence of azotobacter 氮细菌 in the soil can enhance nitrogen availability for plants.

土壤中存在的azotobacter 氮细菌可以提高植物的氮素可用性。

9.Farmers often introduce azotobacter 氮细菌 to improve crop yields.

农民们常常引入azotobacter 氮细菌以提高作物产量。

10.Research shows that azotobacter 氮细菌 can fix atmospheric nitrogen effectively.

研究表明，azotobacter 氮细菌能够有效地固氮。

11.In organic farming, azotobacter 氮细菌 plays a crucial role in maintaining soil fertility.

在有机农业中，azotobacter 氮细菌在维持土壤肥力方面起着至关重要的作用。

12.The use of fertilizers can be reduced by incorporating azotobacter 氮细菌 into the soil.

通过将azotobacter 氮细菌加入土壤，可以减少化肥的使用。

作文

In the world of microbiology, various microorganisms play crucial roles in maintaining ecological balance and supporting agricultural practices. One such microorganism is azotobacter, a free-living nitrogen-fixing bacterium that significantly contributes to soil fertility. Understanding the function and benefits of azotobacter can help us appreciate its importance in sustainable agriculture and environmental health. Azotobacter is commonly found in the upper layers of the soil and is known for its ability to convert atmospheric nitrogen into a form that plants can utilize. This process, known as nitrogen fixation, is vital because nitrogen is an essential nutrient for plant growth. However, most plants cannot directly use atmospheric nitrogen; they rely on soil bacteria like azotobacter to convert it into ammonia or other compounds that can be absorbed by their roots. The presence of azotobacter in soil not only enhances the nitrogen content but also improves the overall health of the soil ecosystem. These bacteria produce various growth-promoting substances, including vitamins and hormones, which further stimulate plant growth. Additionally, azotobacter helps in the breakdown of organic matter, releasing nutrients back into the soil, making them available for plants. One of the remarkable features of azotobacter is its ability to thrive in diverse environmental conditions. It can survive in both aerobic and anaerobic environments, although it prefers oxygen-rich conditions. This adaptability makes azotobacter a resilient player in various ecosystems, from agricultural fields to natural habitats. Farmers and agricultural scientists have increasingly recognized the potential of azotobacter as a biofertilizer. By inoculating crops with azotobacter, farmers can reduce their reliance on chemical fertilizers, which can have detrimental effects on the environment. Chemical fertilizers often lead to soil degradation, water pollution, and loss of biodiversity. In contrast, using azotobacter not only promotes healthy plant growth but also supports sustainable farming practices. Moreover, the application of azotobacter has shown promising results in increasing crop yields. Studies have demonstrated that crops treated with azotobacter exhibit improved growth rates, higher resistance to diseases, and increased productivity. This is particularly important in the face of global challenges such as food security and climate change. However, there are still challenges associated with the use of azotobacter in agriculture. Factors such as soil type, pH, and moisture levels can influence the effectiveness of azotobacter as a biofertilizer. Therefore, ongoing research is essential to optimize the conditions under which azotobacter can thrive and provide maximum benefits to crops. In conclusion, azotobacter is a vital microorganism that plays a significant role in enhancing soil fertility and promoting sustainable agricultural practices. Its ability to fix atmospheric nitrogen and improve plant growth makes it an invaluable asset to farmers and the environment. As we continue to explore the potential of azotobacter and other beneficial microbes, we move closer to achieving sustainable agricultural systems that can support a growing global population while protecting our planet's resources.

在微生物学的世界中，各种微生物在维持生态平衡和支持农业实践方面发挥着至关重要的作用。其中一种微生物是azotobacter，它是一种自由生活的固氮细菌，对土壤肥力有显著贡献。理解azotobacter的功能和益处，可以帮助我们欣赏其在可持续农业和环境健康中的重要性。 Azotobacter通常存在于土壤的上层，以其将大气中的氮转化为植物可以利用的形式而闻名。这一过程称为固氮，是至关重要的，因为氮是植物生长的基本营养素。然而，大多数植物无法直接使用大气中的氮；它们依赖于像azotobacter这样的土壤细菌将其转化为氨或其他可以被根部吸收的化合物。 Azotobacter的存在不仅提高了土壤中的氮含量，还改善了土壤生态系统的整体健康。这些细菌产生多种促进生长的物质，包括维生素和激素，进一步刺激植物生长。此外，azotobacter有助于有机物的分解，将养分释放回土壤，使其对植物可用。 Azotobacter的一个显著特征是它能够在多种环境条件下生存。它可以在好氧和厌氧环境中生存，尽管它更喜欢富氧的条件。这种适应性使得azotobacter在各种生态系统中成为一个顽强的参与者，从农业田地到自然栖息地。 农民和农业科学家越来越认识到azotobacter作为生物肥料的潜力。通过给作物接种azotobacter，农民可以减少对化肥的依赖，而化肥可能对环境造成危害。化肥往往导致土壤退化、水污染和生物多样性的丧失。相比之下，使用azotobacter不仅促进健康的植物生长，还支持可持续的农业实践。 此外，应用azotobacter在提高作物产量方面显示出良好的效果。研究表明，接受azotobacter处理的作物表现出更快的生长速度、更高的抗病能力和更高的生产力。在全球面临食品安全和气候变化等挑战的背景下，这一点尤为重要。 然而，使用azotobacter进行农业生产仍然面临一些挑战。土壤类型、pH值和湿度等因素会影响azotobacter作为生物肥料的有效性。因此，持续的研究对于优化azotobacter可以繁荣并为作物提供最大益处的条件至关重要。 总之，azotobacter是一种重要的微生物，在增强土壤肥力和促进可持续农业实践方面发挥着重要作用。它固氮和促进植物生长的能力使其成为农民和环境不可或缺的资产。随着我们继续探索azotobacter和其他有益微生物的潜力，我们将更接近实现可持续农业系统的目标，这些系统能够支持不断增长的全球人口，同时保护我们星球的资源。