نتایج جستجو برای: soil concentration

تعداد نتایج: 549484  

2011
J. Matula

Phosphorus concentration in the soil solution of agricultural soils should be a consensus of the agronomic and environmental aspect. Data from literary sources are inconsistent if the method of soil solution extraction from the soil and the method of phosphorus detection are not indicated. In the present paper a simplified procedure of soil solution extraction is used that is derived from the n...

Journal: :Environmental geochemistry and health 2018
Mark A S Laidlaw Callum Gordon Andrew S Ball

Urban soils in many cities have been found to be contaminated with lead from past usage of leaded petrol, deteriorating lead-based exterior paints and industrial sources. Currently, the spatial distribution of soil lead concentrations in the Melbourne metropolitan area is unknown. The objective of this study was to perform a preliminary assessment of the spatial distributions of the surface soi...

Amir Hosein Khoshgoftar Manesh Mahmod Kalbasi Majid Afyuni Mehran Hoodaji Shahrzad Kabirinejad,

Returning crop residues into the soil as a source of organic matter are an important source of copper and can play an important role in the soil fertility. In addition to the role of the organic matter in increasing the concentration of micronutrients in soil solution, attention should be also paid to the role of the kind and the quantity of the root’s exudates released in response to the incor...

Amir Hosein Khoshgoftar Manesh Mahmod Kalbasi Majid Afyuni Mehran Hoodaji Shahrzad Kabirinejad,

Returning crop residues into the soil as a source of organic matter are an important source of copper and can play an important role in the soil fertility. In addition to the role of the organic matter in increasing the concentration of micronutrients in soil solution, attention should be also paid to the role of the kind and the quantity of the root’s exudates released in response to the incor...

Journal: :international journal of advanced biological and biomedical research 2014
shahrzad kabirinejad mahmod kalbasi amir hosein khoshgoftar manesh mehran hoodaji majid afyuni

returning crop residues into the soil as a source of organic matter are an important source of copper and can play an important role in the soil fertility. in addition to the role of the organic matter in increasing the concentration of micronutrients in soil solution, attention should be also paid to the role of the kind and the quantity of the root’s exudates released in response to the incor...

Journal: :iranian journal of radiation research 0
m. zubair department of applied physics, zakir hussain college of engineering and technology, aligarh muslim university, aligarh 202002, india m. shakir khan department of applied physics, zakir hussain college of engineering and technology, aligarh muslim university, aligarh 202002, india d. verma department of applied physics, zakir hussain college of engineering and technology, aligarh muslim university, aligarh 202002, india

background: radon is an odourless, colourless and tasteless gas and it is the first cause of lung cancer among non- smokers. the assessment of the level of radium in building materials helps in understanding the radiological implications. it has been observed that everyone has some levels of exposure to them. therefore measurement of radium and radon in the soil samples are important from publi...

2017
Gabriel Massaine Moulatlet Gabriela Zuquim Fernando Oliveira Gouvêa Figueiredo Samuli Lehtonen Thaise Emilio Kalle Ruokolainen Hanna Tuomisto

Amazonia combines semi-continental size with difficult access, so both current ranges of species and their ability to cope with environmental change have to be inferred from sparse field data. Although efficient techniques for modeling species distributions on the basis of a small number of species occurrences exist, their success depends on the availability of relevant environmental data layer...

ریحانی‌تبار, عادل , محمودی, شهاب , نجفی, نصرت‌اله ,

Improvement of plant nutrition is one of the approaches for augmenting the drought stress tolerance in plants. Due to low organic-matter content in most soils in arid and semi-arid regions of Iran, application of organic-wastes’ compost can increase water-holding capacity of the soil and improve plant nutrition. So, in this study, the interactive effects of soil moisture and municipal sewage-sl...

Journal: :Journal of agricultural and food chemistry 2004
Ginevra Lombardi-Boccia Massimo Lucarini Sabina Lanzi Altero Aguzzi Marsilio Cappelloni

Yellow plums (Prunus domestica L) conventionally and organically grown in the same farm were selected to study the influence of different agronomic practices on antioxidant vitamins (ascorbic acid, vitamin E, beta-carotene) and phenolics (total polyphenols, phenolic acids, flavonols) concentration. Conventional plums were grown on tilled soil. Three organic cultivations were performed: tilled s...

ژورنال: آبخیزداری ایران 2020
Gholami, Leila, Hasanzadeh, Negar, Khaledi Darvishan, Abdulvahed, Yonesi, Habibolah,

Soil is very important for the production of crops and foodstuffs. One of the most important environmental crisesin the relationship with soil is the phenomenon of soil loss and therefore the soil conservation is very important. In conditions that, there is not the possibility of establishing vegetation, the use of soil conditioners can be useful in controlling soil loss. The present study wa...

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