نتایج جستجو برای: soil physico

تعداد نتایج: 192213  

Journal: :International Journal of Plant and Soil Science 2021

Soil consists of very complex, inter-related community microorganisms which interact with one another and plants animals, forming a complex web biological activity. The microbes determine health potential soil to perform multitude ecosystem processes, depend on the composition functioning. microbial structure functions in are influenced by physico-chemical properties soils. Abiotic controls lik...

Journal: :Journal of Natural Sciences Research 2023

The review summarizes the literature on role of soil microorganisms physico-chemical properties and plant growth. Most investigators confirmed that Soil microbial activity is very important to improve health for Healthy crop growth because play an in building a complex link between plants soil. microbes are dynamic component performed many beneficial functions system. Microbes help different bio...

ژورنال: علوم آب و خاک 2012
جهانگرد محمدی, , سید محسن حسینی, , سید محمد حجتی, , یحیی کوچ, ,

Uprooting trees and pit – mound micro topographies are due to creation of heterogeneity condition in soil ecosystem. Pay attention to mountainous condition of hyrcanian forests in Iran and presence of trees with high diameters (old trees), therefore, it is imagined that many of trees are prone to uprooting. Thus, the aim of this research is studying variability some of soil physico - chemical ...

ژورنال: علوم آب و خاک 2015
ترابی گل سفیدی, حسین, مرادی نسب, وحید,

Terraces are old geomorphic surfaces that are not related to present streams and are best places to study the effect of time on soil formation (chronosequence). This research was carried out to study some physico-chemical parameters especially different forms of iron as soil development indices on terraces of Karaj River in Hassan-Abad, southern Tehran. To determine soil development indices in ...

In this study seven plant species were collected from the forest of Arasbaran located in the northwest of Iran. Sampling was conducted in May and August and roots were used for calculating vesicular arbuscular mycorrhizal colonization percentage during the same period. Fine roots were separated, washed and put in FAA solution as a fixative. Through the time, root colonization of all plant speci...

Journal: :International journal of agricultural science and food technology 2022

Soil erosion is one of several major deterioration processes which result in soil degradation and declining agricultural productivity Ethiopia due to the dense population, high livestock density, intensive crop production area. water conservation practices are mechanisms used reduce associated nutrient loss, reducing risk production. Therefore, review focuses on importance properties Ethiopia. ...

2015
Huxley M. Makonde Romano Mwirichia Zipporah Osiemo Hamadi I. Boga Hans-Peter Klenk

Termites constitute part of diverse and economically important termite fauna in Africa, but information on gut microbiota and their associated soil microbiome is still inadequate. In this study, we assessed and compared the bacterial diversity and community structure between termites' gut, their mounds and surrounding soil using the 454 pyrosequencing-based analysis of 16S rRNA gene sequences. ...

2003
Adrian Unc Michael J. Goss

Survival and transport of pathogens from manure in the environment depend on a number of complex phenomena. An important question is how the properties of such a complex environment as the soil–manure medium impact the persistence of bacteria within the vadose zone. First, manure can change the partitioning of precipitation water between infiltration (enhanced by solid manure) and surface runof...

2009

The remediation of oil contaminated soils has been a major problem in oil producing countries and recently use of plants to clean such soils has been on investigation. In order to identify plants that can enhance the remediation of crude oil contaminated soil, the effect of the growth of G. max on the physico-chemistry and crude oil content of soil contaminated with different concentrations of ...

2013
E. N. Ogbodo

Studies were carried out in 2005 and 2006 raing seasons at four locations (Abakaliki, Ezzamgbo, Ikwo and Okposi) within the Abakaliki Agro-ecological zone of southeastern Nigeria, to determine their suitability for the production of lettuce. The measurements included weather elements, soil physico-chemical propertiesand crop growth and yield. The data collected were subjected to statistical ana...

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