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Paper Information

Journal:   IRANIAN JOURNAL OF FIELD CROPS RESEARCH   2004 , Volume 1 , Number 2; Page(s) 191 To 198.
 
Paper: 

STUDY THE EFFECTS OF TIME, RATE AND APPLICATION METHOD OF ZN FERTILIZER ON YIELD, YIELD COMPONENTS AND ZN UPTAKE BY TWO POTATO CULTIVARS

 
 
Author(s):  SHOJAEI K., JAVAHERI S.
 
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Abstract: 

This study was conducted in J. Rock agricultural research station for two years, in order to study the effects of time, rate and application method of Zn fertilizer on yield, yield components and Zn uptake by two potato cultivars. Experimental factors were two potato cultivars (Agria and Marfona) and Zn application including three soil application rates (0, 30 and 60 kg/ha) and four foliar application (foliar application on early growing season, 50% of flowering, early growing season plus 50% of flowering and no foliar application). The Factorial experiments in randomized complete block design with three replication was used. Results in two years showed that the potato growth stages had no effect on treatments and growth stages including emergency, flowering, hilling and maturity were happened for all treatments in the same time. The Zn concentration in potato leaves was not affected by soil Zn application but foliar applications have significant effects on Zn concentration. It seems that soil characters such as high pH and low organic matter were the main causes of this results. Results also showed that treatments had no effect on tuber yield, but number of tuber was different in two cultivars and Marfona produced higher tuber number in comparison to Agria.

 
Keyword(s): POTATOES, ZN ABSORBTION, FOLIAR APPLICATION, YIELD
 
References: 
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