Journal of Food, Agriculture and Environment

Experimental study of ammonia volatilization from applied nitrogen in soda saline - Alkali soil

Author(s):

Hui Li, Mei Hong *, Dilong Zhang, Jiansen Lei, Haitao Zhang

Recieved Date: 2013-07-06, Accepted Date: 2013-10-20

Abstract:

Ammonia volatilization from soil is one of the important reasons of nitrogen loss, and the process of volatilization is affected by many factors. According to the characteristics of soda saline-alkali soil in the west of Jilin Province, artificial soda saline-alkali soil was simulated through laboratory methods in this paper, and a series of incubation experiments were carried out to study the influence of the type of nitrogen fertilizer, soil pH and salinity, soil moisture content and calcium salt on ammonia volatilization from the simulate soil, respectively. The results of experiments show that the losses from applied ammonium sulphate in soda saline-alkali soil were higher with the increase of soil pH but lower with the increase of soil moisture, and calcium salt played a role on promoting the process of nitrogen loss so that accumulative ammonia volatilization achieved maximum increase by 69.74% than that from the untreated soil after a month. To the nitrogen losses from applied urea, soil salt showed inhibition effects on it, but the losses were still much more than that from ammonium sulphate. Dynamics research indicates kinetic curve of ammonia volatilization could be described by quadratic equation under different conditions, the coefficient of quadratic term was negative so it suggested that the rate of volatilization was declined with time.

Keywords:

Soda saline-alkali soil, nitrogen fertilizer, ammonium sulphate, urea, ammonia volatilization, dynamics

---

Journal: Journal of Food, Agriculture and Environment
Year: 2013
Volume: 11
Issue: 3&4
Category: Environment
Pages: 1467-1472

---

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 :