نتایج جستجو برای: sulphur fertilizers

تعداد نتایج: 20632  

Journal: : 2022

This study was conducted to determine the effects of different organic fertilizers on plant growth, yield, quality properties and element contents in spinach (Spinacia oleracea L.). The research carried out under open field conditions Bolu province. In study, Matador variety used seven applications were examined. as follows: 1) Control, 2) Chicken manure, 3) Turkey 4) Sheep 5) Cattle 6) Vermico...

1998
Barry Ryan Angelo Ledda

The Jura-Cretaceous coal seams of the Currier, Mist Mountain, &thing and Gates formations generally formed in delta or strand plain environments with little marine influence. The sulphur contents of coal from these formations is therefore generally low, nearly always less than I % and often less than 0.5 %. Coalbearing formations of the Cretaceous Nanaimo and Skeena groups were deposited in coa...

Journal: :European journal of histochemistry : EJH 2007
M Stoltenberg S Juhl G Danscher

Bismuth - sulphur quantum dots can be silver enhanced by autometallography (AMG). In the present study, autometallographic silver enhanced bismuth-sulphur nanocrystals were isolated from unfixed cryo-sections of kidneys and livers of rats exposed to bismuth (Bi207) subnitrate. After being subjected to AMG all the organic material was removed by sonication and enzymatic digestion and the silver ...

2009
J. D. THUMANN

Sublimation can be caused not only by irregular S02 production, due to unsteady supply of sulphur, but also by low combustion temperatures. These can occur when insufficient sulphur is pumped into the burner, as in the case of a clogged nozzle, but also because of cold air·used for the combustions. This is especially the case if the S02 production is below its minimum rating for the plant, whic...

2014
F. Asgharzadeh M. H. Fathi Nasri M. A. Behdani

This experiment was conducted to determine the effects of nitrogen and phosphorus fertilizers on nutritive value of safflower forage and silage by in situ and in vitro methods. The safflower forage was harvested at flowering stage, chopped to 3-5 cm particles and then ensiled in the laboratory silos for 60 days. The experimental treatments included: 1. Unfertilized forage (control), 2. Phosphor...

2003
Patricia Imas

Israel is a small country with a total land area of 21,000 km, from which 20% is arable land. More than half of Israel has an arid to semi-arid climate. Approximately half of the cultivated area (200,000 hectares) has to be irrigated due to lack of rainfall and other water resources. Approximately 80% of the irrigated land in Israel uses the fertigation method, combining the application of wate...

Journal: :Journal of environmental biology 2008
A K Dwivedi B D Tripathi Shashi

Present study deals with the relationship between ambient air sulphurdioxide and sulphate content in leaf of selected tropical plant species, Ficus religiosa. The study reveals a positive correlation between ambient air sulphur dioxide and sulphate in the leaves. Two way ANOVA finds the obtained values to be highly significant (p < 0.001). Amount of sulphate in leaves shows positive correlation...

In view of pollution prediction modeling, the study adopts homogenous (random forest, bagging, and additive regression) and heterogeneous (voting) ensemble classifiers to predict the atmospheric concentration of Sulphur dioxide. For model validation, results were compared against widely known single base classifiers such as support vector machine, multilayer perceptron, linear regression and re...

2007
A. C. EDWARDS R. C. FERRIER J. D. MILLER

A comparison between two analytical techniques commonly used for the determination of sulphur concentrations in natural water samples is reported. Significant differences in the sulphur values obtained using inductively coupled plasma atomic emission spectrometry and ion chromatography are described. The contribution of a sulphur fraction (presumed to be organic S) not detected by ion chromatog...

2013
Andreas Rabenstein Jörg Rethmeier Ulrich Fischer

Anaerobic sulphide oxidation in the light was studied with seven cyanobacterial strains isolated from the southern Baltic Sea. All strains oxidized sulphide (1.2-3.5 mM) stoichiometrically to thiosulphate. No elemental sulphur could be detected as end product of anoxygenic photosynthesis. Sulphite as intermediate sulphur compound was released into the growth medium during anaerobic sulphide oxi...

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