نتایج جستجو برای: organic content

تعداد نتایج: 601770  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2005
E A Birge C Juday

2003
Patricia Toledo Anders Andrén

Milk produced at organic farms was studied to determine the β-carotene content and if an extended grazing period and organic fodder had any influence on the concentration of this antioxidant. Milk samples from 31 organic farms collected during April, June, August, November (1999) and February (2000) were analysed for the content of β-carotene by HPLC after lipid extraction and fat saponificatio...

2010
Simon A. Parsons Bruce Jefferson Peter Jarvis Emma Sharp David Dixon Brian Bolto

OBJECTIVES: The objectives of this project were to (1) identify the conditions under which conventional and alternative processes are suitable for use in the treatment of waters with high organic load, (2) determine the effect of organic content on floc size, structure, strength, growth, and break up, and (3) determine the effect of changes in floc structure on removal during physicochemical pr...

Continuous soil moisture assessment and evaluation is essential for irrigation management and planning. One of the common methods for measuring the moisture content of the soil is the use of a gypsum block. The use of gypsum blocks in some cases, including the presence of organic matter in soil, may cause an error in the measurement of moisture. For this purpose, a laboratory study was conducte...

Many factors including climate, type of rootstock, soil properties, geological factors, plant nutrition and irrigation affect the quantity and quality of orange fruit. In this study, the relations between citrus orchards conditions, their soil properties and leaf elements concentration and fruit quality were evaluated. The experiment was conducted as a randomized complete block design and soil,...

Journal: :international journal of environmental research 2012
z. miletić m. knežević s. stajić o. košanin i. đorđević

the effect of european black alder (alnus glutinosa l.) on the contents of carbon and nitrogen,exchangeable base cations, and plant available forms of phosphorus in the reclaimed mine soils formed bywaste deposition from opencast lignite mines was researched in central serbia. it was concluded that thegreatest part of dead organic residues reaching the soil under european black alder monocultur...

ژورنال: علوم آب و خاک 2013
امیر رمضان‌پور اصفهانی, , علی محمدی, , مصطفی چرم, , نادر حسینی زارع, , هادی عامری‌خواه, ,

The purpose of this study was to investigate cadmium adsorption through Freundlich and Langmuir equations in sediments of Karun River in three hydrometric stations (5th Ahvaz Bridge, Darkhovin and Khorramshahr) in the low-water and high-water seasons. Fitting of data from experiments on cadmium absorption to Freundlich and Langmuir equation showed they are compatible. According to the conducted...

Journal: :iranian journal of applied animal science 2015
m. takalloozadeh o. dayani r. tahmasbi

in this study, the nutritive values of treated walnut hull by neurospora sitophila were evaluated. the chemical composition of samples was evaluated by laboratory analysis.in vitrodigestibility experiment was done to determine digestibility coefficients of dry matter, organic matter and also digestible organic matter in dry matter (domd) to estimate the metabolizable energy (me) content oftreat...

Journal: :Journal of Soil and Water Conservation 2020

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