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33 articles for “humic acid”
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Research ArticleOpen accessIn the keywordsInfluence of Chemical Properties on Soil Carbon Storage of a Tropical Peat Swamp ForestAnton Eko Satrio, Seca Gandaseca, Osumanu Haruna Ahmed, Nik Muhamad Ab. MajidProblem statement: It is important to investigate the seriousness of degradation of peat swamp forest caused by skidding system in terms of its function as a carbon sink. In this study, we formulated assumptions that conditions of our research site before the introduction of skidding system were in their natural states, thus that changes measured are clearly caused by skidding … …American Journal of Applied Sciences, Vol. 6, Issue 11 · 30 Nov 2009 · 7,915 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEffect of Precipitation Fluctuation on Soil Carbon Storage of a Tropical Peat Swamp ForestAnton Eko Satrio, Seca Gandaseca, Osumanu Haruna Ahmed, Nik Muhamad Ab. MajidProblem statement: It is important to compare the effect of extremely different rainfall conditions on soil carbon storage of lowland tropical peat swamp forest. Therefore, under these natural rainfall gradient, the objectives of this study were to determine whether rainfall affects soil carbon storage of a tropical peat swamp forest and to determine what correlations between variables occurs which stimulate … …American Journal of Applied Sciences, Vol. 6, Issue 8 · 31 Aug 2009 · 8,603 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEffect of Organic Based N Fertilizer on Dry Matter (Zea mays L.), Ammonium and Nitrate Recovery in an Acid Soil of Sarawak, MalaysiaSusilawati Kasim, Osumanu Haruna Ahmed, Nik Muhamad Ab. Majid et al.Problem statement: Exchangeable ammonium (NH4+) could be recovered by humic and fulvic acids from humic substances. The ability of these acids in fixing or retaining NH4+ has been demonstrated in many findings and reports. Both acids could affect the plant growth, nutrients uptake by enhancing photosynthesis rate and root growth among others. Thus, in this study, the effect of both … …American Journal of Applied Sciences, Vol. 6, Issue 7 · 31 Jul 2009 · 8,244 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEffects of Converting Secondary Forest on Tropical Peat Soil to Oil Palm Plantation on Carbon StorageCh’ng Huck Ywih, Osumanu Haruna Ahmed, Nik Muhamad Ab. Majid, Mohamadu Boyie JallohProblem statement: Peat has been identified as one of the major groups of soils found in Malaysia. Sarawak as the largest state in Malaysia has the biggest reserve of peat-land. There are about 1.5 million ha of peat-land in Sarawak, which are relatively under developed. As is the case with any plant, oil palm trees do sequester carbon as they … …American Journal of Agricultural and Biological Sciences, Vol. 4, Issue 2 · 30 Jun 2009 · 9,039 accessesView PDFCite
Research ArticleOpen accessIn the abstractPhysico-Сhemical Parameters of Humic Substances of Brown Coal and their Effect on the Growth of Phoenix dactyliferaDamilya Konysbaeva, Bolat Yermagambet, Zhanar Kassenova et al.The motivation for the study was the need to obtain data on the effect of humic acids isolated from brown coal on soil fertility and plant development. In our study, we conducted experiments with plants to isolate humic substances from brown coal and study its physicochemical properties and the effect of the resulting fraction on the growth of Phoenix dactylifera … …OnLine Journal of Biological Sciences, Vol. 23, Issue 4 · 21 Sep 2023 · 4,936 accessesView PDFCite
Research ArticleOpen accessIn the abstractCalcium-sorbitol Chelating Technology and Application in PotatoesPengchao Li, Cunzhen Geng, Lingyu Li et al.Researches on low-molecular organic compounds are concentrated in amino acid and Humic acid chelating fertilizer, but few in sorbitol chelated calcium. In this study, selecting sorbitol as chelating agent, the technological conditions of chelating sorbitol with calcium and the effect of sorbitol chelated calcium on potato were studied. The impact factors on the stability of the fertilizer were investigated, including … …American Journal of Biochemistry and Biotechnology, Vol. 16, Issue 1 · 9 Mar 2020 · 9,087 accessesView PDFCite
Review ArticleOpen accessIn the abstractRecognizing Dissolved Organic Matter with an Improved Fluorescence Regional Integral MethodZhang Jianguo, Wang Xinyi, Liu Xiaoman et al.The aim of this paper was to study transformations of Dissolved Organic Matter (DOM) in marl rock groundwater. To achieve this, we carried out a series of soil column experiments, using a DOM solution as the water sample and marl rock as the testing rock sample. Three-Dimensional Excitation-Emission Matrix Spectra (3DEEMS) were generated for DOM solutions and the Analytic Hierarchy … …American Journal of Biochemistry and Biotechnology, Vol. 15, Issue 4 · 24 Dec 2019 · 7,288 accessesView PDFCite
Research ArticleOpen accessIn the abstractPlant Growth Promoting Activity of Actinomycetes Isolated from Soybean RhizosphereAris Tri Wahyudi, Jepri Agung Priyanto, Resti Afrista et al.Plant Growth Promoting Rhizobacteria (PGPR) is considered as the biological agent for improving plant growth. One Group of PGPR that have an important role in growth promoting of plant is Actinomycetes. The objective of this study was to isolate and screen Actinomycetes isolated from soybean rhizosphere as growth promoter of soybean in vitro. Fifty-three Actinomycetes isolates have successfully been isolated … …OnLine Journal of Biological Sciences, Vol. 19, Issue 1 · 5 Jan 2019 · 14,604 accessesView PDFCite
Research ArticleOpen accessIn the abstractVermicompost Incorporation into Soil Contaminated with Deltamethrin as an Attempt to Reduce the Toxicity Caused by this Pyrethroid: A Structural Study of SoilFernanda Benetti, Lívia B.F. Pigatin, Michelle M. Kanashiro et al.The use of vermicompost for remediating soil contaminated with the commercial formulation containing deltamethrin was proposed. Biotoxicity tests with the goal of evaluating the potential remediation degree of the vermicompost after its addition to contaminated soils were performed. The tests lasted 56 days and involved Eisenia foetida earthworms. Possible structural changes in humic acids from these soils were evaluated by … …American Journal of Environmental Sciences, Vol. 13, Issue 4 · 16 Aug 2017 · 7,165 accessesView PDFCite
Research ArticleOpen accessIn the abstractβ1,3-GLUCAN ANTICANCER EFFICACIES AND SYNERGIES: A REVIEWStory Jenny, Vetvicka Vaclav, Angove Michaelβ1,3-glucans from fungi, cereals, seaweeds and bacteria have been shown to possess favourable biological and anti-carcinogenic activities including upregulation of phagocytosis, cytokine production enhancement, superoxide and nitrite production; antibody secretion and stimulation of signalling pathways associated with proto-oncogene expression. However, human dietary supplements containing β1,3-glucans vary in efficacy due to glucan source, the lifecycle stage of the source at extraction, … …American Journal of Immunology, Vol. 10, Issue 3 · 3 Sep 2014 · 8,759 accessesView PDFCite