نتایج جستجو برای: microbial indices
تعداد نتایج: 194448 فیلتر نتایج به سال:
Soil health assessments associated with organic amendment applications have primarily focused attention on manure or composts. Yet, quantifying specific changes in soil biosolids land has yet to be determined. Our objectives were evaluate the various indicators, and utilizing Management Assessment Framework (SMAF), quantify indicator scores indices as affected by either increasing inorganic N f...
The global demand for cotton makes sustainable production an important issue that can be improved by a better understanding of the influence soil microbes on growth. We collected field soils at seedling and flowering/boll-setting (FBS) stages in order to obtain properties growth indices. Bacterial fungal community compositions were assessed high-throughput sequencing 16S rRNA internal transcrib...
Background- Soil organic carbon serves as potential indicator of the soil quality which is influenced by changes in management practices. The conversion natural ecosystem anthropogenic activities resulted decline SOC. So, this study was conducted to assess indices and understand dynamics develop strategies for enhancing C pool soil. Methods- present major land use systems Mayiladuthurai distric...
Background and Objectives: Water contamination of baths causes gastrointestinal, skin and fungal diseases due to pathogens. Therefore, this study was conducted to determine the microbial contamination of natural swimming places water in Behshahr. Materials and Methods: The present descriptive study was performed in three natural swimming places. Nine-tube fermentation method was used to determ...
Background and purpose: Milk has an essential role in human health and its proper consumption is one of the indices of healthy nutritional style. This study was designed to assess the contamination of pasteurized milk and dairy products by different pathogenic microbes in Zahedan, Iran. Materials and methods: In an analytical cross-sectional study, 551 samples including 244 pasteurized milk,...
the zagreb indices are the oldest graph invariants used in mathematical chemistry to predictthe chemical phenomena. in this paper we define the multiple versions of zagreb indicesbased on degrees of vertices in a given graph and then we compute the first and secondextremal graphs for them.
Improving soil microbial activity and using symbiosis and synergistic relations between plant growth-promoting rhizobacteria (PGPR), arbuscular mycorrhizal fungi (AMF) and plants through improving nutrient uptake can cause better growth of plants especially at salinity tension condition. To investigate the effect of AMF and PGPR application on growth and some nutrient uptake by corn in differen...
Xerophytes in desert improve their fitness under stress through the development of stems and branches. However, little is known about changes structure function endophytic microorganisms response to interactions between plants environment. In this study, we analyzed lignification indices young mature branches during a typical xerophyte, Nitraria tangutorum, combined 16S ITS high-throughput sequ...
Lakeshore wetlands are important terrestrial ecosystems worldwide, and the lakeshore of Tibetan Plateau sensitive to climate change. Therefore, in context global warming, studying effects temperature rise on surface soil microbial communities is essential for wetland biodiversity conservation. In this study, we used metagenomic sequencing examine changes structure their metabolic pathways Niaod...
this experiment was designed to study the effect of putrescine on quality of table grapes during storage. table grapes cvs, rishbaba and olhoghi were dipped in putrescine solutions (0, 1 and 2mm) by the method of pressure-infiltration. the results indicated that after 55 day of storage putrescine 1 mm in rishbaba and at 2mm in olhoghi cultivars were the most effective treatments in maintaining ...
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