Results 251 to 260 of about 9,925,983 (304)

Effects of nitrogen fertilization on the rhizosphere priming

Plant and Soil, 2021
It is known that nitrogen (N) input modulates the rhizosphere priming effect (RPE); however, the magnitude and driving mechanisms of priming under increasing rates of fertilizer application remain unclear. 15N-urea (control, 75 (N75), 150 (N150), 225 (N225), and 300 (N300) kg N ha−1) was applied to a plant (maize)-soil (rice paddy) system and the RPE ...
Zhenhui Jiang, Yizhen Liu, Jingping Yang, Zhiqin Zhou, Anna Gunina   +4 more
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Statistical Evaluation of the Rhizosphere Effect

Soil Science Society of America Journal, 1960
Abstract The paired t‐test was used to analyze the results of a microbiological study of soil on the surface of plant roots and soil apart from the roots. The increase in the numbers of bacteria, actinomycetes, fungi and protozoa in the rhizosphere soil of wheat was highly significant as was the increased ...
J. W. Rouatt, H. Katznelson, T. M. B. Payne   +2 more
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Effects of isoproturon in the rhizosphere of wheat

Weed Research, 1985
SummaryIn a field experiment, isoproturon (as Arelon) applied to soil at 2·5 kg ai ha−1 caused variable effects in the rhizosphere of winter wheat. These included transient increases and decreases in the number of bacterial and fungal propagules. No changes in soil levels of NH4+‐N, NO2−‐N, NO3−‐N or PO43− were detected.
P. J. MUDD, M. P. GREAVES, S. J. L. WRIGHT   +2 more
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INITIATION OF THE RHIZOSPHERE EFFECT

Canadian Journal of Microbiology, 1959
Microbiological analyses were conducted on unsterilized ground wheat seed, on the emerging primary root, 3 days following planting in soil and at 3-day intervals thereafter for a period of 17 days. By the third day following planting there were more than twice as many bacteria in the rhizosphere soil as in the control soil.
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Advances in Rhizosphere Microbiome and Rhizosphere Immunity Effect: A Review

Journal of Agricultural and Food Chemistry
Rhizosphere immunity, an emerging concept, involves complex interactions among plant roots, rhizospheric microbiota, and the soil environment that collectively safeguard plant health. Although extensively studied, the mechanisms driving rhizosphere immunity remain insufficiently elucidated.
Zhurui Tang, Wenbing Tan, Rong Li, Ling Weng, Xinlong Chen, Beidou Xi, Dianqiu Lv   +6 more
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Effect of phytohormones synthesized by rhizosphere bacteria on plants

Applied Biochemistry and Microbiology, 2011
New strains of rhizosphere microorganisms Azotobacter chroococcum Az d10, Bacillus megaterium P1-04, and Bacillus mucilaginosus B-1574 were found to be able to synthesize cytokinins (CKs) and indolylacetic acid (IAA). Three forms of CKs-dihydrozeatin riboside, isopentenyl adenosine, and trans-zeatin riboside-were identified, whose ratio was different ...
M G, Sokolova, G P, Akimova, O B, Vaĭshlia   +2 more
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Structural Effect of Pesticides on Rhizosphere Microbiome

Environmental Microbiology
ABSTRACT Pesticide residues in the field pose significant risks to nontarget organisms, and their structures determine their environmental behaviour. However, the effects of different pesticide structures on rhizosphere microbial function remain unclear.
Yitian Yu, Qi Zhang, Zhenyan Zhang, Nuohan Xu, Bingfeng Chen, Binghai Lv, Liwei Sun, Dong Zhu, Haifeng Qian, Tao Lu   +9 more
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Rhizosphere Effect on Soil Algae

Nature, 1960
VERY few studies of the effect of the rhizosphere on soil algae have been made in the past1, and in a recent review Starkey2 states that it is possible that algal populations may even be decreased in the root zone. This communication presents evidence for a well-marked rhizosphere effect on soil algae by the roots of cultivated tea plants nominally ...
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Effect of Saponins on the Growth and Activity of Rhizosphere Bacteria

1996
Saponins are a group of steroid or triterpenoid glycosides and related chemicals (sapogenins: non-glycosylated) found in roots, shoots, seeds, and flowers of many plant species. Saponins are of agronomic interest because of allelopathic interference with plant growth (Oleszek and Jurzysta, 1987; Waller et al., 1993).
R M, Zablotowicz, R E, Hoagland, S C, Wagner   +2 more
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Dynamics of the rhizosphere effect in soils

Eurasian Soil Science, 2013
In a greenhouse experiment with continuous labeling of oat plants in a 13CO2 atmosphere, the ratios between different carbon and nitrogen pools in the rhizosphere and nonrhizosphere soil, i.e., the values of the rhizosphere factor R f , were determined.
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