scholarly journals Enhanced nitrogen and phosphorus activation with an optimized bacterial community by endophytic fungus Phomopsis liquidambari in paddy soil

2019 ◽  
Vol 221 ◽  
pp. 50-59 ◽  
Author(s):  
Meng-Jun Tang ◽  
Qiang Zhu ◽  
Feng-Min Zhang ◽  
Wei Zhang ◽  
Jie Yuan ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Paddy Soil ◽  
Endophytic Fungus ◽  
Nitrogen And Phosphorus

Responses of nitrification and bacterial community in three size aggregates of paddy soil to both of initial fertility and biochar addition

2021 ◽  
Vol 166 ◽  
pp. 104004
Author(s):  
Qiong Hou ◽  
Ting Zuo ◽  
Jian Wang ◽  
Shan Huang ◽  
Xiaojun Wang ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Paddy Soil

Effects of Long-Term Fertilization on the Distribution of Carbon, Nitrogen and Phosphorus in Water-Stable Aggregates in Paddy Soil

2011 ◽  
Vol 10 (12) ◽  
pp. 1932-1940 ◽  
Author(s):  
Wei WANG ◽  
Wei-cai CHEN ◽  
Kai-rong WANG ◽  
Xiao-li XIE ◽  
Chun-mei YIN ◽  
...  
Keyword(s):  
Paddy Soil ◽  
Nitrogen And Phosphorus ◽  
Water Stable Aggregates

Response of activity, abundance, and composition of anammox bacterial community to different fertilization in a paddy soil

2018 ◽  
Vol 54 (8) ◽  
pp. 977-984 ◽  
Author(s):  
San’an Nie ◽  
Xiumei Lei ◽  
Lixia Zhao ◽  
Yi Wang ◽  
Fei Wang ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Paddy Soil

Changes in soil bacterial community and enzyme activity under five years straw returning in paddy soil

2020 ◽  
Vol 100 ◽  
pp. 103215 ◽  
Author(s):  
Lipeng Wu ◽  
Hui Ma ◽  
Qinglei Zhao ◽  
Shirong Zhang ◽  
Wenliang Wei ◽  
...  
Keyword(s):  
Enzyme Activity ◽  
Bacterial Community ◽  
Paddy Soil ◽  
Soil Bacterial Community ◽  
Under Five ◽  
Soil Bacterial

Bacterial community and PAH-degrading genes in paddy soil and rice grain from PAH-contaminated area

2021 ◽  
Vol 158 ◽  
pp. 103789
Author(s):  
Chao Lu ◽  
Yang Hong ◽  
Emmanuel Stephen Odinga ◽  
Juan Liu ◽  
Daniel C.W. Tsang ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Paddy Soil ◽  
Rice Grain ◽  
Contaminated Area

Potential for bioremediation of hydrocarbon polluted soils in the Maritime Antarctic

2006 ◽  
Vol 18 (3) ◽  
pp. 335-343 ◽  
Author(s):  
A.P. Luz ◽  
E.M.P. Ciapina ◽  
R.C. Gamba ◽  
M.S. Lauretto ◽  
E.W.C. Farias ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Petroleum Hydrocarbons ◽  
South Shetland Islands ◽  
Nitrogen And Phosphorus ◽  
Polluted Soils ◽  
Bacterial Populations ◽  
Soil Microcosms ◽  
Antarctic Treaty ◽  
The Antarctic

Human activity in the Antarctic requires the use of petroleum hydrocarbons as the main energy source for a variety of operations. In the current study, in situ soil microcosms were constructed in the proximity of the Brazilian Antarctic Station Comandante Ferraz, King George Island, South Shetland Islands, to analyse the effect of oil amendment on the indigenous bacterial community in contaminated and uncontaminated sites to assess the potential for bioremediation. Microcosms were sampled for heterotrophic and hydrocarbon-degrader bacterial counts, pH, temperature, moisture, nutrient levels and petroleum hydrocarbons. Total organic carbon, nitrogen and phosphorus contents were generally low in the Antarctic cryosols. According to statistical analysis based on Colony Forming Unit numbers, significant bacterial populations were present in all microcosms, with larger numbers observed in oil amended than in non-amended soils. Aliphatic and aromatic fractions of diesel fuel were detected in the soil microcosms, and significant quantities were removed during the experiment. These results strongly suggest that the cold-adapted bacterial community present in soils around the Brazilian Antarctic station has the potential to adapt and utilize the oil as a carbon source. This knowledge can contribute both to bioremediation technology and the goals of the the Antarctic Treaty which prohibits the introduction of foreign organisms into the region.

scholarly journals The effects of the depth of fertilization on losses of nitrogen and phosphorus and soil fertility in the red paddy soil of China

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e11347
Author(s):  
Kun Hou ◽  
Ying Huang ◽  
Xiangmin Rong ◽  
Jianwei Peng ◽  
Chang Tian ◽  
...  
Keyword(s):  
Paddy Soil ◽  
Ammonia Volatilization ◽  
Soil Column ◽  
Nitrogen And Phosphorus ◽  
Total N ◽  
Optimal Depth ◽  
Significant Difference ◽  
Research Objects ◽  
Minimal Environmental Impact ◽  
Red Paddy Soil

Nitrogen (N) and phosphorus (P) losses from agroecosystems are dominant nonpoint pollution. To minimize the losses of N and P, the optimal depth of fertilization was explored using a soil column study with the red paddy soil as the research objects. The losses of N and P were measured under five depths of fertilization (0, 5, 7.5, 10, and 12.5 cm) as well as no fertilization. The results showed that ammonia volatilization was significantly decreased with increasing fertilization depth within 0–10 cm, and there was no significant difference among the 10 cm, 12.5 cm, and no-fertilization treatments. Comparing with surface fertilization (0 cm), N and P losses by runoff could be reduced by 30.7–67.1% and 96.9–98.7% respectively by fertilization at 5–12.5 cm. In addition, deep fertilization (5–12.5 cm) did not increase N and P losses by leaching at the depth of 40 cm. Total N and P contents in the tillage layer of soil were increased by 5.1 to 22.8% and by −1.0 to 7.5%, respectively. Fertilization at 10cm depth has the potential to minimal environmental impact in the red paddy soil of south China, at this depth, NH3 volatilization was reduced by 95.1%, and N and P losses by runoff were reduced by 62.0% and 98.4%, respectively, compared with surface fertilization.

scholarly journals How silicon fertilizer improves nitrogen and phosphorus nutrient availability in paddy soil?

2021 ◽  
Vol 22 (7) ◽  
pp. 521-532
Author(s):  
Yuqi Liang ◽  
Min Liao ◽  
Zhiping Fang ◽  
Jiawen Guo ◽  
Xiaomei Xie ◽  
...  
Keyword(s):  
Nutrient Availability ◽  
Paddy Soil ◽  
Nitrogen And Phosphorus ◽  
Silicon Fertilizer
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