scholarly journals Organic Amendments Alleviate Salinity Effects on Soil Microorganisms and Mineralisation Processes in Aerobic and Anaerobic Paddy Rice Soils

2020 ◽  
Vol 4 ◽  
Author(s):  
Florian Wichern ◽  
Md. Rafiqul Islam ◽  
Michael Hemkemeyer ◽  
Conor Watson ◽  
Rainer Georg Joergensen
Keyword(s):  
Soil Microorganisms ◽  
Organic Amendments ◽  
Paddy Rice ◽  
Rice Soils ◽  
Salinity Effects ◽  
Aerobic And Anaerobic

Tungsten (W) bioavailability in paddy rice soils and its accumulation in rice (Oryza sativa)

2017 ◽  
Vol 27 (6) ◽  
pp. 487-497 ◽  
Author(s):  
Blessing James ◽  
Weili Zhang ◽  
Pei Sun ◽  
Mingyan Wu ◽  
Hong Hong Li ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Paddy Rice ◽  
Rice Soils

Investigation of possible horizontal gene transfer from transgenic rice to soil microorganisms in paddy rice field

2010 ◽  
Vol 20 (1) ◽  
pp. 187-192 ◽  
Author(s):  
Sung Eun Kim ◽  
Jae Sun Moon ◽  
Jung Kyu Kim ◽  
Won Sik Choi ◽  
Sang Han Lee ◽  
...  
Keyword(s):  
Gene Transfer ◽  
Horizontal Gene Transfer ◽  
Transgenic Rice ◽  
Soil Microorganisms ◽  
Rice Field ◽  
Paddy Rice ◽  
Paddy Rice Field

scholarly journals Evaluation of Non-Conventional Biological and Molecular Parameters as Potential Indicators of Quality and Functionality of Urban Biosolids Used as Organic Amendments of Agricultural Soils

2020 ◽  
Vol 10 (2) ◽  
pp. 517 ◽  
Author(s):  
Miriam del Rocío Medina-Herrera ◽  
María de la Luz Xochilt Negrete-Rodríguez ◽  
José Luis Álvarez-Trejo ◽  
Midory Samaniego-Hernández ◽  
Leopoldo González-Cruz ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Microorganisms ◽  
Organic Amendment ◽  
Agricultural Soils ◽  
Organic Amendments ◽  
Biological Properties ◽  
Different Seasons ◽  
C And N ◽  
Two Indices ◽  
Enzymatic Machinery

Biosolids are waste from wastewater treatment and have a high content of organic matter and nutrients. In this study, not conventional physicochemical and biological properties of biosolids produced during different seasons of the year were evaluated. These properties are not considered in environmental regulations; however, they are of agronomic interest as indicators of quality and functionality in soils. Also, molecular analysis by Fourier-transform infrared (FTIR) was conducted, enzymatic analysis using the APIZYM® system was performed and two indices of functional and microbial diversity were established. The results showed that the biosolids had a high content of total organic carbon, total nitrogen, P, and K. FTIR analyses showed that chemical composition of biosolids was similar during all year. The C and N of microbial biomass demonstrated presence of active microorganisms, as well as a uniformity in its richness and abundance of species that could present a positive synergy with soil microorganisms. The enzymatic activities showed that the biosolids contained an enzymatic machinery available to promote the mineralisation of the organic matter of biosolids and could even transcend into the soil. Finally, biological properties can be used as indicators of quality and functionality of biosolids before being used as an organic amendment, especially in agricultural soils.

EFFECT OF ORGANIC AMENDMENTS ON RHIZOCTONIA AND ACCOMPANYING MICROFLORA IN SOIL

1967 ◽  
Vol 13 (6) ◽  
pp. 643-650 ◽  
Author(s):  
Y. Henis ◽  
B. Sneh ◽  
J. Katan
Keyword(s):  
Soil Microorganisms ◽  
Organic Amendments ◽  
Experimental Period ◽  
Soil Microflora ◽  
Modified Method ◽  
Bean Plants ◽  
Infection Index ◽  
Cotton Plants ◽  
Oat Straw ◽  
Period Decrease

The effect of oat straw, green bean plants, and cellulose on the infection index and saprophytic activity of Rhizoctonia, and the effect of chitin, N-supplemented oat straw, and green cotton plants on the infection index, saprophytic activity, and soil microflora was tested. A modified method for counting Rhizoctonia-antagonistic bacteria, actinomycetes, and fungi was developed. A relationship between efficiency of the amendments in decreasing infection index and in suppressing the saprophytic activity of Rhizoctonia was observed at the end of the experimental period. Decrease in infection index and saprophytic activity was accompanied by increase in counts of general and antagonistic soil microorganisms. This increase was especially pronounced in chitin-amended soil. The possible mechanism of the biological control of Rhizoctonia by chitin is discussed.

SOIL POTENTIALLY MINERALIZABLE NITROGEN AND ITS RELATION TO RICE PRODUCTION AND NITROGEN NEEDS IN TWO PADDY RICE SOILS OF CHILE

2012 ◽  
Vol 35 (3) ◽  
pp. 396-412 ◽  
Author(s):  
J. Hirzel ◽  
K. Cordero ◽  
C. Fernández ◽  
J. Acuña ◽  
M. Sandoval ◽  
...  
Keyword(s):  
Paddy Rice ◽  
Rice Production ◽  
Rice Soils ◽  
Potentially Mineralizable Nitrogen ◽  
Mineralizable Nitrogen

Methane sources and sinks in paddy rice soils: relationship to emissions

1995 ◽  
Vol 53 (3) ◽  
pp. 243-251 ◽  
Author(s):  
B.C. Banker ◽  
H.K. Kludze ◽  
D.P. Alford ◽  
R.D. DeLaune ◽  
C.W. Lindau
Keyword(s):  
Paddy Rice ◽  
Rice Soils ◽  
Sources And Sinks
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