Paper Information

Journal:   JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY)   JULY-AUGUST 2012 , Volume 26 , Number 3; Page(s) 545 To 553.
 
Paper: 

SHORT-TERM EFFECTS OF BARLEY RESIDUE MANAGEMENT ON UREASE AND ALKALINE PHOSPHATASE ACTIVITIES

 
 
Author(s):  HOSSEINI M.S.*, HAGHNIA GH., LAKZIAN A., EMAMI H.
 
* SOIL SCIENCE DEPARTMENT, AGRICULTURAL COLLEGE, FERDOWSI UNIVERSITY OF MASHHAD
 
Abstract: 

Soil enzyme activities can be used as indicators of soil quality for assessing the sustainability of agricultural ecosystems. The objective of this study was to determine the effects of barley residue input rate, burning, urea fertilizer and tillage management on activities of alkaline phosphatase and urease under field conditions, after a period of 90 days. The experiment was carried out based on a completely randomized design with a factorial arrangement in two replications. The treatments included two levels of barley residue input rate (3 and 6 t ha-1), burning (without and with stubble burning), urea fertilizer (0 and 125 kg ha-1) and tillage systems (no-till, conventional tillage). Results showed that 6 t ha-1 crop residue treatment increased enzyme activities in comparison with 3 t ha-1 treatment at 0-5 cm. Whereas stubble burning and tillage treatments significantly decreased urease and alkaline phosphatase activities. The urea fertilizer had no effect on alkaline phosphatase activity, whereas urease activity positively affected by urea application. Urease activity was affected more than alkaline phosphatase activity by management practices in soil. The results of this experiment showed that notillage system along with crop residue retention of 6 t.ha-1 and without stubble burning systems would be the most effective management to protect and promote soil alkalin phosphatase and urease activity.

 
Keyword(s): BURNING, CROP RESIDUES, SOIL MANAGEMENT, TILLAGE, UREA FERTILIZER
 
References: 
  • ندارد
 
  Persian Abstract Yearly Visit 100
 
Latest on Blog
Enter SID Blog