Results 1 to 10 of about 128,478 (361)

Humus as a geographical agency [PDF]

open access: greenScottish Geographical Magazine, 1903
n ...
Marcel Hardy
openalex   +4 more sources

EXTRACTION AND CHARACTERIZATION OF HUMUS WITH REFERENCE TO CLAY-ASSOCIATED HUMUS [PDF]

open access: bronzeCanadian Journal of Soil Science, 1974
An extraction-fractionation method was developed with which it is possible to isolate 60–67% of the humus of Chernozemic and Luvisolic soils. Two humic acid fractions were obtained: (1) a conventional alkali-pyrophosphate extractable HA-A; (2) a clay-associated HA-B fraction isolated after ultrasonic dispersion, in water, of the residue of the alkali ...
D. W. Anderson   +2 more
openalex   +4 more sources

Humus forms, carbon stock and properties of soil organic matter in forests formed on dry mineral soils in Latvia [PDF]

open access: yesEstonian Journal of Earth Sciences, 2020
Over the last decades, more attention has been paid to carbon accumulation in soil, more recently, to soil humus forms, as they indicate environmental conditions and state of soil organic matter.
Imants Kukuļs   +3 more
doaj   +1 more source

The front page as a canvas for multimodal argumentation: Brexit in the Greek press

open access: yesFrontiers in Communication, 2023
In this paper, we analyze the front pages of mainstream Greek newspapers with the highest circulation reporting the official result of the Brexit referendum in 2016. Our analysis seeks to extract the standpoints and arguments that circulated in the Greek
Dimitris Serafis, Assimakis Tseronis
doaj   +1 more source

Interactions between canopy gaps created by single-tree selection method and humus layer thickness (Case study: Alandan forest, Sari, Mazandaran province) [PDF]

open access: yesتحقیقات جنگل و صنوبر ایران, 2016
This research investigated the effect of canopy gaps created by single-tree selection method on humus layer depth within a managed oriental beech (Fagus orientalis Lipsky) stand in Hyrcanian region. To accomplish this, 16 gaps were selected in 4 classes (
Kambiz Abrari Vajari
doaj   +1 more source

Response of chemical and microbial properties to short-term biochar amendment in different agricultural soils [PDF]

open access: yesZbornik Matice Srpske za Prirodne Nauke, 2020
The objective of this study was to assess the effect of biochar soil amendment (BSA) on chemical and microbial properties in different agricultural soils in Vojvodina Prov­ince.
Živanov Milorad S.   +6 more
doaj   +1 more source

Effect of organic matter content on physical-mechanicalproperties of sea soft soil

open access: yesShuiwen dizhi gongcheng dizhi, 2022
Soil organic matter (SOM) is an important part of marine soft soil, and its role in the physico-mechanical properties of the soil needs to be studied urgently.
Fugang GOU   +3 more
doaj   +1 more source

Forest humus type governs heavy metal accumulation in specific organic matter fractions [PDF]

open access: yes, 2020
Soils have the potential to accumulate heavy metals and the capacity to do so is strongly related the properties of each soil. Soil organic matter is a key factor in the retention, release, and bioavailability of heavy metals, and here we have determined
Błońska, Ewa   +3 more
core   +1 more source

The Influence of Certain Types of Substrate and Biochemical Substances in Seed Germination and Plant Development of Spruce (Picea abies)

open access: yesBulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca: Horticulture, 2020
In order to analyse seeds germination and seedlings growth of spruce (Picea abies) there were used five treatments with bio and chemical substances for stimulation germination: H2O, Atonik, Cropmax, CuSO4, KMnO4 and five treatments with different ...
Alina M. TRUȚA   +5 more
doaj   +1 more source

Influence of man-made edaphotopes of the spoil heap on biota [PDF]

open access: yes, 2018
The aim of the work is to investigate the influence of man- made edaphotopes of colliery spoil heap on biota by bioindication method. The physicochemical properties of edaphotopes were investigated: humidity, substrate temperature,
Kuzmenko, Oleksandr   +11 more
core   +1 more source

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