Next Article in Journal
Exploring Temperature-Related Effects in Catch Crop Net N Mineralization Outside of First-Order Kinetics
Previous Article in Journal
Nitrogen Pools in Tropical Plantations of N2-Fixing and Non-N2-Fixing Legume Trees under Different Tree Stand Densities
Article

Effect of Broccoli Residue and Wheat Straw Addition on Nitrous Oxide Emissions in Silt Loam Soil

1
Mahendra Ratna Multiple Campus, Tribhuvan University, Ilam 57300, Nepal
2
Department of Biosystem Engineering and Soil Science, University of Tennessee, Knoxville, TN 37996, USA
3
Department of Fertilization and Soil Matter Dynamics, University of Hohenheim, 70599 Stuttgart, Germany
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Chengrong Chen
Received: 13 January 2021 / Revised: 1 March 2021 / Accepted: 15 March 2021 / Published: 18 March 2021
Nitrous oxide (N2O) is one of the main greenhouse gases and its emissions from vegetable production systems have brought a sustainability challenge. The objective of this study was to evaluate the potential of reducing N2O emissions from silt loam soil by mixing nitrogen (N)-rich broccoli (Brassica oleracea var. italica) residue with wheat straw or water-washed wheat straw. An experiment was conducted in randomized complete block design with five treatments; unamended or control (BS), wheat straw (+S), broccoli residue (+CR), broccoli residue and wheat straw (+CR+S) and broccoli residue and washed wheat straw (+CR+Sw) and was replicated four times. The +CR and +S were added at the rate of 3.5 kg and 2.0 kg fresh matter m−2 and their mixtures, +CR+S and +CR+Sw, were incorporated in 3.5 kg of silt loam soil at 60% water-filled pore space (WFPS) and packed in soil microcosms. Nitrous oxide emissions were measured once a day during the 14-day of study period. Daily fluxes of N2O were found to be reduced on +CR+W and +CR+Sw when compared to single-amended +CR treatment. Similarly, N2O fluxes on +CR+Sw (2772 µg N m−2 h−1) were significantly lower than +CR+S (3606 µg N m−2 h−1) soon after the amendment but did not vary significantly thereafter. Moreover, the amendment mixture, +CR+S and +Cr+Sw, resulted in lower net N2O emissions by 73.3% and 74.2%, respectively, relative to +CR treatment. While the results clearly suggest that the +CR+S or +CR+Sw reduced N2O emissions, it necessitated further studies, possibly by increasing the frequency of sampling to clarify if washed wheat straw would further mitigate N2O emissions from the vegetable production system. View Full-Text
Keywords: broccoli residue; nitrous oxide gas emissions; soil incubation; soil microcosm; wheat straw broccoli residue; nitrous oxide gas emissions; soil incubation; soil microcosm; wheat straw
Show Figures

Figure 1

MDPI and ACS Style

Budhathoki, R.; Panday, D.; Seiz, P.; Ruser, R.; Müller, T. Effect of Broccoli Residue and Wheat Straw Addition on Nitrous Oxide Emissions in Silt Loam Soil. Nitrogen 2021, 2, 99-109. https://0-doi-org.brum.beds.ac.uk/10.3390/nitrogen2010007

AMA Style

Budhathoki R, Panday D, Seiz P, Ruser R, Müller T. Effect of Broccoli Residue and Wheat Straw Addition on Nitrous Oxide Emissions in Silt Loam Soil. Nitrogen. 2021; 2(1):99-109. https://0-doi-org.brum.beds.ac.uk/10.3390/nitrogen2010007

Chicago/Turabian Style

Budhathoki, Rajan, Dinesh Panday, Perik Seiz, Reiner Ruser, and Torsten Müller. 2021. "Effect of Broccoli Residue and Wheat Straw Addition on Nitrous Oxide Emissions in Silt Loam Soil" Nitrogen 2, no. 1: 99-109. https://0-doi-org.brum.beds.ac.uk/10.3390/nitrogen2010007

Find Other Styles

Article Access Map by Country/Region

1
Back to TopTop