نتایج جستجو برای: chemical and physical soil properties

تعداد نتایج: 17053780  

Journal: :مرتع و آبخیزداری 0
حمید محمدی ، حمیدرضا کریم زاده جمال الدین خواجه الدین

study of soil and plant relationships is nessesery for ecological- based and appropriate management. the objective of this study is to determine the influence of edaphic properties on haloxylon persicum growth and also, indentifing growth limiting soil properties for saxaul. the study was performed through the stratified random sampling and 3 sites were selected as follow: planted strong saxaul...

Journal: :iran agricultural research 2015
e. bijanzadeh m. mokarram r. naderi

abstract- the information on the spatial properties of soil is vital to improve soil management and to increase the crop productivity. geostatistical analysis technique is one of the most important methods for determining the spatial properties of soil. the aim of this study was to investigate spatial variability of soil chemical and physical attributes for field management in eastern shiraz, i...

2008
Carmen Trasar-Cepeda María Carmen Leirós Fernando Gil-Sotres

Human activity is one of the main causes of the physical, chemical and biological degradation of soils. This degradation implies a change in soil quality as it involves both a decrease in productivity and changes in the ecological functions of the soil. The objective of the present study was to investigate the effect of soil use on soil biochemical properties, with the aim of providing data tha...

2015
Xiaojia Zeng Xiongyao Li Shijie Wang Shijie Li Nicole Spring Hong Tang Yang Li Junming Feng

It is important to develop Martian soil simulants that can be used in Mars exploration programs and Mars research. A new Martian soil simulant, called Jining Martian Soil Simulant (JMSS-1), was developed at the Lunar and Planetary Science Research Center at the Institute of Geochemistry, Chinese Academy of Sciences. The raw materials of JMSS-1 are Jining basalt and Fe oxides (magnetite and hema...

ژورنال: علوم آب و خاک 2020

Wind erosion is known as one of the most important land degradation aspects, particularly in arid and semi-arid regions. Soil properties, by affecting soil erodibility, can control the wind erosion rate. The aim of this study was to attribute the soil physical and chemical properties to the wind erosion rate for the purpose of determining the most important property. To this aim, wind erosion r...

2012
Jinman Wang Zhongke Bai Peiling Yang

The main component of the byproducts of flue gas desulfurization (BFGD) is CaSO(4), which can be used to improve sodic soils. The effects of BFGD on sodic soil properties and sunflower growth were studied in a pot experiment. The experiment consisted of eight treatments, at four BFGD rates (0, 7.5, 15 and 22.5 t ha(-1)) and two leaching levels (750 and 1200 m(3) ha(-1)). The germination rate an...

2012
Pierre Plassart Sébastien Terrat Bruce Thomson Robert Griffiths Samuel Dequiedt Mélanie Lelievre Tiffanie Regnier Virginie Nowak Mark Bailey Philippe Lemanceau Antonio Bispo Abad Chabbi Pierre-Alain Maron Christophe Mougel Lionel Ranjard

Soil DNA extraction has become a critical step in describing microbial biodiversity. Historically, ascertaining overarching microbial ecological theories has been hindered as independent studies have used numerous custom and commercial DNA extraction procedures. For that reason, a standardized soil DNA extraction method (ISO-11063) was previously published. However, although this ISO method is ...

Journal: :Journal of the science of food and agriculture 2016
Magali Leonel Ezequiel L Carmo Adalton M Fernandes Célia M L Franco Rogério P Soratto

BACKGROUND Starch is the major component of potato tubers, amounting approximately to 150-200 g kg (-1) of the tuber weight. Starch is considered to be a major factor for the functionality of the potato in food applications. This study evaluated the physical characteristics of potato starches isolated from tubers of different potato cultivars grown in soil with three levels of phosphorus (P) av...

2017
R. L. Yale M. Sapp C. J. Sinclair J. W. B. Moir

Accelerated degradation is the increased breakdown of a pesticide upon its repeated application, which has consequences for the environmental fate of pesticides. The herbicide atrazine was repeatedly applied to soils previously untreated with s-triazines for >5 years. A single application of atrazine, at an agriculturally relevant concentration, was sufficient to induce its rapid dissipation. S...

2017
Yo-Jin Shiau Hsueh-Ching Wang Tsai-Huei Chen Shih-Hau Jien Guanglong Tian Chih-Yu Chiu

Badland soils-which have high silt and clay contents, bulk density, and soil electric conductivity- cover a large area of Southern Taiwan. This study evaluated the amelioration of these poor soils by thorny bamboo, one of the few plant species that grows in badland soils. Soil physiochemical and biological parameters were measured from three thorny bamboo plantations and nearby bare lands. Resu...

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