The aim of the current investigation was to determine if maize had ability assimilate macronutrients under effect humic substance that enriched with micronutrients. A field experiment conducted 10 treatments replicated thrice using RCBD this in College Agriculture's V C Farm Mandya, Karnataka, India during Kharif 2017. findings showed treatment getting RDF + FYM @ t ha-1 together Enriched HS 5 ...

The biological and chemical potential for electron shuttling via humic acids was evaluated by analyzing the depth distribution of humic-acid-reducing and iron-reducing bacteria in a freshwater sediment, and correlating it to the redox characteristics of humic acids and iron. Physicochemical analysis of profundal sediments of Lake Constance revealed a distinct stratification, with oxygen respira...

Water plays a crucial role in soil organic matter (SOM) having various different functions such as transport of material, elution of ,e. g., pollutants in soil, and also the sequestration of humic substances. Furthermore, the generation and quantification of hydrophilic and hydrophobic regions in soil has several effects on SOM which can also include the storage amount and time of certain mater...

4 Chemical Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306 4.1 Elemental Composition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307 4.2 Molecular Size Distribution and Charge . . . . . . . . . . . . . . . . . . . . . . 309 4.3 Spectral Absorbance and Fluorescence . . . . . . . . . . . . . . . . . . . . . . . 311 4.4 Infrared Spectra . . . . ....

published in Advance ACS Abstracts, April 15, 1994. Environ. Sci. Technol., Vol. 28, No. 7, 1994 1299

Results of extensive studies on the basic problems of extraction, isolation, fractionation and purification of soil humic substances are presented. Data on the degradation, functional group analysis and molecular weight determination of purified humic fractions froro the fJ -horizon of a podzol are reported, and the role of huroic substances in the podzolization process is discussed.

Climate change scenarios predict that lake water temperatures will increase up to 4°C and rainfall events will become more intense and frequent by the end of this century. Concurrently, supply of humic substances from terrestrial runoff is expected to increase, resulting in darker watercolor ("brownification") of aquatic ecosystems. Using a multi-seasonal, low trophic state mesocosm experiment,...

1. Introduction 1. Introduction Transport and availability of organic pollutants in soils, sediments and aquifers are closely related to the interactions of these compounds with the natural organic polymers (so-called soil organic matter [SOM], e.g. humic substances) present in these media. Contaminants may be either immobilized and retarded (and sometimes conserved for decades [1]) or transpor...

The interactions between earthworms and microorganisms can produce significant quantities of plant growth hormones and humic acids which act as plant regulators. Experiments were designed to evaluate the effects of humic acids extracted from vermicompost and compare them with the action of commercial humic acid in combination with a commercial plant growth hormone, indole acetic acid (IAA) whic...