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Full-Text Articles in Life Sciences

Enriched Rice Husk Biochar Minimizes Ammonia Loss From Applied Urea Fertilizer Under Waterlogged Environment [Research Note], Gunavathy Selvarajh, Huck Ywich Ch'ng, Norhafizah Md Zain, Issariyaporn Damrongrak Jun 2021

Enriched Rice Husk Biochar Minimizes Ammonia Loss From Applied Urea Fertilizer Under Waterlogged Environment [Research Note], Gunavathy Selvarajh, Huck Ywich Ch'ng, Norhafizah Md Zain, Issariyaporn Damrongrak

The Philippine Agricultural Scientist

A laboratory-scale closed dynamic air flow system was carried out to assess the effect of enriched rice husk biochar on ammonia volatilization, soil exchangeable ammonium, and available nitrate from the applied urea in comparison to urea alone under waterlogged conditions. Treatments with enriched rice husk biochar (5, 10, 15, and 20 t ha-1) significantly minimized ammonia volatilization, however, only biochar with rates of 5, 10, and 15 t ha-1 had significantly retained more soil exchangeable ammonium by 14% – 43%. Additionally, soil available nitrate was lower in all treatments except in T1 (urea alone). This indicates that …


Phosphorus Sorption By Gyttja And Its Effect On The Ph Value And Phosphorus In Acidic Soils, Kadir Saltali, Ahmet Nedi̇rli̇ Jan 2021

Phosphorus Sorption By Gyttja And Its Effect On The Ph Value And Phosphorus In Acidic Soils, Kadir Saltali, Ahmet Nedi̇rli̇

Turkish Journal of Agriculture and Forestry

Tea and hazelnut cultivated soils are mainly distributed in Black Sea region of Turkey. Low pH value is a primary problem for those soils; therefore, farmers apply lime once every 3-4 years to raise the pH value of soil. Gyttja is highly rich in organic matter (40.59%) and lime (45.67%), and it is a low cost and considerably abundant in Afşin-Elbistan Coal Basin (estimated reserve is around 4.8 billion tons). The aim of this study was to determine the phosphorus (P) sorption characteristics of gyttja, and its efficiency on P availability and soil's pH value. Optimum P sorption conditions (pH, …


Linking Microbial Community Structure And Ecosystem Functions In Acidic Soil From Pennsylvania, Usa, Madison T. James, Sophia T. Farrisi, Shreya Shah, Vishal Shah Jan 2019

Linking Microbial Community Structure And Ecosystem Functions In Acidic Soil From Pennsylvania, Usa, Madison T. James, Sophia T. Farrisi, Shreya Shah, Vishal Shah

Sustainability Research & Creative Activities Grants Reports

Microorganisms play a critical role in the structure and functioning of soil ecosystems. Within acidic soil across the northeastern United States and Canada, we have little understanding of the microbial diversity present and its relationship to the biochemical cycles. The current study is aimed at understanding the taxonomical and functional diversities in the acidic soil obtained from near various types of trees, how the diversities change as a function of depth, and the linkage between taxonomical and functional diversities. From eight sampling locations, soil samples were collected from three horizons (depths). The three depths were 0-10 cm (A), 11-25 cm …