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Paper Information

Journal:   JOURNAL OF AGRICULTURAL SCIENCE (UNIVERSITY OF TABRIZ)   SPRING 2012 , Volume 22 , Number 1; Page(s) 105 To 115.
 
Paper: 

EFFECT OF CONSERVATION TILLAGE ON IRRIGATION SCHEDULING AND RAPESEED YIELD

 
 
Author(s):  ARSHADI KHAMSEH A.R.*, ALMASI M., RESHAD SEDGHI A., AHMADI ADLI R.
 
* ISLAMIC AZAD UNIVERSITY, SCIENCE AND RESEARCH BRANCH, TEHRAN, IRAN
 
Abstract: 

To study the effect of conservation tillage on irrigation scheduling and quantitative and qualitative characteristics of spring rapeseed (RGS 003), a split-plot experiment based on randomized complete block design with 3 replications was conducted in sandy-clay-loam soil of East Azerbaijan region. The tillage treatments were: T1: conventional tillage, T2: reduce tillage, T3: no-tillage. The irrigation treatments were irrigation after 25 (I1), 50 (I2) and 75 (I3) percent of moisture depletion in root zone. The water consumption was calculated by measuring soil moisture content in the root zone. Results indicated that, tillage and irrigation treatments had significant effects on grain and oil yield (p<0.01). The interaction effects of these treatments was not significant. Since this experiment was carried out in one year, the effects of conservation tillage were not visible. However, treatment T1I2 resulted in maximum grain and oil yields (1012, 392 kg/ha, respectively) with 7620 m3/ha water consumption was recommendable.

 
Keyword(s): CONSERVATION TILLAGE, REDUCED TILLAGE, NO-TILLAGE, IRRIGATION SCHEDULING, RAPESEED YIELD
 
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