Soil physical properties after two years application of organic fertilizers in Safflower ( Carthamus tinctorius L) planting
Journal Title: International Journal of Farming and Allied Sciences - Year 2015, Vol 4, Issue 4
Abstract
In order to study the effect of organic fertilizers on soil physical properties in Safflower planting, an experiment was conducted in Islamic Azad university of Shirvan, Iran, during 2012-2013 and 2013-2014 growing seasons. The experiment treatments included vermicompost, urban waste compost, cow manure and nitrogen fertilizer. The experiment was split plot based on randomized complete block design with 3 replications. The results showed that in dry sieving cow manure and urban waste compost showed higher greater aggregates and lower small aggregates. In wet sieving cow manure contained higher aggregates greater than 0.2 mm and lower aggregates smaller than 0.2 mm. Cow manure treatment showed the highest and lowest porosity and bulk density respectively. Also more soil moisture contents observed in cow manure treatment. Increasing in organic fertilizer amounts increased soil electrical conductivity. Application of 5 t/h urban waste compost and 7 t/h vermicompost produced the highest seed yield but using 5 t/h urban waste compost advised to use in Safflower production because of lower price. Generally in low input crops of Safflower, organic fertilizer such as urban waste compost can easily replaced with nitrogen fertilizer because of higher seed yield and improving soil physical properties.
Authors and Affiliations
Seyed Morteza Azimzadeh
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