Journal of Food, Agriculture and Environment

Optimization and risk analysis of greenhouse gas emissions depending on yield and nitrogen rates in winter wheat cultivation

Author(s):

Ewa Krasuska *, Rafał Pudełko, Antoni Faber, Zuzanna Jarosz, Magdalena Borzęcka-Walker, Alina Syp, Jerzy Kozyra

Recieved Date: 2013-06-14, Accepted Date: 2013-10-10

Abstract:

Biofuel producers are obligated to achieve certain level of greenhouse gas emission (GHG) reduction in the lifecycle of biofuels in reference to fossil fuels. The current emission reduction level is at least 35% and will increase up to 50% since January 2017 for the existing plants and at least to 60% for a new installations. At the farming stage it is possible to achieve some emission savings in the lifecycle of biofuels with reference to the agricultural feedstock production. In this study GHG emission optimization was investigated with regard to winter wheat yield and N fertilization rate while considering bioethanol production. Using desirability of optimization, risk analysis and uncertainty assessment, it was proved that the GHG emission attributed to winter wheat cultivation can be reduced by 1.7 g CO₂ eq. MJ^-1 of ethanol produced. This can be achieved primarily with yield increase by 7.9% compared to the median, while changes in N fertilization is of less importance. By selecting winter wheat from farms producing higher yields (5,200- 6,929 t ha^-1) it is possible to decrease the uncertainty regarding the GHG emissions from 2% to 1%.

Keywords:

Winter wheat, greenhouse gas emission, GHG emission reduction, bioethanol, optimization, risk, uncertainty

---

Journal: Journal of Food, Agriculture and Environment
Year: 2013
Volume: 11
Issue: 3&4
Category: Environment
Pages: 2217-2219

---

Full text for Subscribers

---

Information:

Note to users

The requested document is freely available only to subscribers/registered users with an online subscription to the Journal of Food, Agriculture & Environment. If you have set up a personal subscription to this title please enter your user name and password. All abstracts are available for free.

Article purchasing

If you like to purchase this specific document such as article, review or this journal issue, contact us. Specify the title of the article or review, issue, number, volume and date of the publication. Software and compilation, Science & Technology, all rights reserved. Your use of this website details or service is governed by terms of use. Authors are invited to check from time to time news or information.

---

Purchase this Article:   20 Purchase PDF Order Reprints for 15

---

Share this article :