Arjun Pandey

Emission of greenhouse gases due to anthropogenic activities: an environmental assessment from paddy rice fields.

Ayushi Baiswar, Jairam Singh Yadav, Kalachand Sain, Rakesh Bhambri, Arjun Pandey, Sameer K Tiwari

Journal article  |  2023  |  Environ Sci Pollut Res Int

Paddy rice fields (PRFs) are a potent source of global atmospheric greenhouse gases (GHGs), particularly CH4 and CO2. Despite soci..

High fertilizer nitrogen input increases nitrogen mining in sandy paddy soils

Arjun Pandey, Simon M Eldridge, Anthony Weatherley, Ian R Willett, Aung K Myint, Aung Naing Oo, Kyaw Ngwe, Zoong T Mang, Deli Chen

Journal article  |  2023  |  NUTRIENT CYCLING IN AGROECOSYSTEMS

Excessive nitrogen (N) fertilizer application does not increase rice grain yield and N retention in soils but may lead to higher s..

Recovery of nitrogen fertilizer can be doubled by urea-briquette deep placement in rice paddies

Simon M Eldridge, Arjun Pandey, Anthony Weatherley, Ian R Willett, Aung K Myint, Aung Naing Oo, Kyaw Ngwe, Zoong T Mang, Upendra Singh, Deli Chen

Journal article  |  2022  |  EUROPEAN JOURNAL OF AGRONOMY

Nitrogen (N) recoveries in rice paddies have barely exceeded 60%, despite the implementation of several management strategies, amo..

Opportunities to improve nitrogen use efficiency in an intensive vegetable system without compromising yield

Helen Suter, Arjun Pandey, Shu Kee Lam, Rohan Davies, Rifaath Hassan, David Riches, Deli Chen

Journal article  |  2021  |  JOURNAL OF ENVIRONMENTAL QUALITY

Intensive vegetable cropping systems rely heavily on nitrogen (N) inputs from multiple synthetic and organic fertilizer applicatio..

Dissimilatory nitrate ammonification and N(2)fixation helps maintain nitrogen nutrition in resource-limited rice paddies

Arjun Pandey, Helen Suter, Ji-Zheng He, Hang-Wei Hu, Deli Chen

Journal article  |  2021  |  Biology and Fertility of Soils

Un-fertilized rice paddies have shown maintained soil nitrogen (N) status, stable N supply to the rice plant and sustained rice yi..

Effect of long term fertilization management strategies on methane emissions and rice yield

Pengfu Hou, Yingliang Yu, Lixiang Xue, Evangelos Petropoulos, Shiying He, Yushu Zhang, Arjun Pandey, Lihong Xue, Linzhang Yang, Deli Chen

Journal article  |  2020  |  SCIENCE OF THE TOTAL ENVIRONMENT

Optimum fertilization is an efficient method to maintain rice yield and reduce N-losses. It is essential though to evaluate methan..

Dissimilatory nitrate reduction to ammonium dominates nitrate reduction in long-term low nitrogen fertilized rice paddies

Arjun Pandey, Helen Suter, Jim He, Hangwei Hu, Deli Chen

Journal article  |  2019  |  Soil Biology and Biochemistry

Dissimilatory nitrate reduction to ammonium (DNRA) and diazotrophic N2 fixation contribute to nitrogen (N) supply in rice paddies,..

Nitrogen balances in organic and conventional arable crop rotations and their relations to nitrogen yield and nitrate leaching losses

Arjun Pandey, Fucui Li, Margrethe Askegaard, Ilse A Rasmussen, Jorgen E Olesen

Journal article  |  2018  |  AGRICULTURE ECOSYSTEMS & ENVIRONMENT

Nitrogen (N) flows in organic cropping systems differ considerably from those in conventional systems. The difference is particula..

Nitrogen Addition Decreases Dissimilatory Nitrate Reduction to Ammonium in Rice Paddies

Arjun Pandey, Helen Suter, Ji-Zheng He, Hang-Wei Hu, Deli Chen

Journal article  |  2018  |  APPLIED AND ENVIRONMENTAL MICROBIOLOGY

Dissimilatory nitrate reduction to ammonium (DNRA), denitrification, anaerobic ammonium oxidation (anammox), and biological N2 fix..

Microbially mediated nitrogen conservation and loss in low and high nitrogen input rice paddies

Arjun Pandey

Thesis / Dissertation  |  2018

High rates of fertilizer nitrogen (N) application in rice paddies is a common practice in the majority of the rice-producing count..