搜索结果: 1-15 共查到“农学 humic”相关记录28条 . 查询时间(0.08 秒)
The effect of humic acid on zinc accumulation in chicken broiler tissues
zinc sulphate liver kidney
2015/6/8
Thirty-six selected male chickens were allocated into four groups C, HA, ZN, ZN + HA, and the experiment was initiated after 4 days of an adaptation period. Group C was fed a complete feed mixture wit...
The effect of humic acid on mercury accumulation in chicken organs and muscle tissues
methylmercury chloride liver kidney brain muscle tissue bioavailability
2015/6/5
Forty female chickens were allocated to four groups of ten birds each. The control group (K) was fed a basal diet without supplementation. The second control group received a basal diet with humic aci...
Nutritional Value of Rice Bran Fermented by Bacillus amyloliquefaciens and Humic Substances and Its Utilization as a Feed Ingredient for Broiler Chickens
Broiler Chickens Crude Fiber Fermentation Performance Rice Bran
2016/5/17
An experiment was conducted to increase the quality of rice bran by fermentation using Bacillus amyloliquefaciens and humic substances and its utilization as a feed ingredient for broiler chickens. Th...
Addition of a Worm Leachate as Source of Humic Substances in the Drinking Water of Broiler Chickens
Broilers Humic Substances Production Ileal Digestibility Nutrient Balance
2016/5/17
The objective of this research was to evaluate the growth performance, the apparent ileal digestibility of nitrogen and energy, the retention of nutrients and the apparent metabolizable energy correct...
Impact of Scots pine admixture in European beech stand on dissolved organic carbon and nitrogen leaching from organic and humic horizons of Dystric Arenosols in Northern Poland
European beech Scots pine leaching carbon cycling nitrogen cycling
2015/4/14
The effect of Scots pine admixture in European beech stand on the leaching of dissolved organic carbon (DOC), dissolved organic nitrogen (DON), nitrate nitrogen (NO3-N) and ammonium nitrogen (NH4-N) f...
Model trial investigating retention in selected tissues using broiler chicken fed cadmium and humic acid
cadmium chloride liver kidney leg muscle transfer factor biochemical profile
2015/3/13
Forty randomly selected chickens were allocated into four groups: K, HA, Cd and Cd + HA. After a 5-day adaptation period, the experiment was initiated. Group K was fed a diet without supplements. Grou...
Spectral characterization of selected humic substances
13C NMR spectroscopy Fourier transform infrared spectroscopy (FTIR) humates lignohumate steady-state fluorescence spectroscopy UV-VIS
2015/3/10
Current concern for soil quality has stimulated research on soil organic matter (OM). Humic substances (HS) of different origin were compared applying ultraviolet-visible spectroscopy, Fourier transfo...
Effect of different levels of humic acids on the nutrient content, plant growth, and soil properties under conditions of salinity
humic acids nutrient content plant growth salinity soil properties
2015/3/3
In this study, the effects were investigated of salinity, foliar and soil applications of humic substances on the growth and mineral nutrients uptake of Corn (Hagein, Fardy10), and the comparison was ...
Spectroscopic Characteristics of Humic Acids Originated in Soils and Lignite
humic acids UV-VIS FTIR and SFS spectroscopy
2015/3/1
The aim of our work was to characterise the stability, humification degree, and principal classes of fluorophores in humic acids isolated from different matrices. Soil humic acids were isolated from a...
Molecular size distribution and hydrophilic and hydrophobic properties of humic acids isolated from forest soil
forest soil humic acids HPSEC hydrophobic fractions hydrophilic fractions
2015/1/30
The aim of the present paper was to determine hydrophilic and hydrophobic properties and the degree of polydispersity of humic acids depending on their degree of maturity and the properties of the pla...
Phosphorus fractions in arable and mountain soils and their humic acids
inorganic P organic P soil types humic acids 31P NMR
2015/1/30
Soil phosphorus (P) can exist in various inorganic (Pi) and organic forms (Po). Specific determination of Pi can be obtained by fractionate methods. However, the discrimination between the chemically ...
Methods for the Assessment of Humic Substances Quality in Forest Soils
forest soils humus quality DRIFT spectroscopy humic acids fulvic acids humin
2015/1/28
This paper is focused on soil organic matter quality assessment in acid forest soils. Soil samples were collected in the Jizera Mountains region. Vegetation cover of sampling sites was formed by spruc...
Influence of different levels of humic acid and esterified glucomannan on growth performance and intestinal morphology of broiler chickens
Broiler Chicks Humic Acid Esterified Glucomannan Small Intestine
2013/2/28
A study was under taken to investigate the effect of dietary supplementations of humic acid and esterified glucomannan) on broiler performance and the morphological measurements of small intestine. Tw...
Response of Snap Bean Plants to Mineral Fertilizers and Humic Acid Application
Snap Bean mineral fertilizers humic acid growth and yield
2010/11/15
Two field experiments were carried out in the experimental station of the National Research
Centre at EL-Nubaria, EL-Behira Governorate, Northern Egypt, to study the effect of 12 treatments, which we...
Integrated Treatments Between Humic Acid and Sulfur for Controlling Early Blight Disease of Potato Plants under Field Infection
Potato plants Humic acid Sulfur Early blight Integrated treatments
2010/11/15
Potato crop (Solanum tuberosum L.) is one of the most important vegetable crops in Egypt.
Integrated treatments between humic acid at concentrations 6.0 or 8.0 ml / l followed by sulfur at 3.0 or 4.0...