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Information Journal Paper

Title

THE EFFECTS OF VERMICOMPOST AND CHEMICAL PHOSPHOROUS FERTILIZERS ON QUANTITY AND QUALITY YIELD OF JOHN,S WORT

Writers

SHAFIEE ADIB SHAHLA

Pages

 Start Page 203 | End Page 213

Abstract

 In order to study of the effects of vermicompost and CHEMICAL PHOSPHOROUS FERTILIZERs on quantity and quality of JOHN’s wort, an experiment was conducted as factorial experiment based on randomized complete blocks design with three replications at Shahed University in Tehran during two years 2011-2012. Treatments were phosphorous fertilizer (0, 100 and 200 kg.h-1) and vermicompost (0, 5 and 10 t.h-1). Agronomic characteristics were including plant height, FLOWERING SHOOT YIELD, biological yield, HYPERICIN yield and harvest index. There was significant difference in vermicompost and phosphorous fertilizer treatments and Interaction between them at one percent level. The maximum HYPERICIN yield and FLOWERING SHOOT YIELD was obtained by applying 200 kg.ha-1 phosphorous fertilizer and 5 ton.h-1 vermicompost and 200 kg.ha-1 phosphorous fertilizer and 10 ton.h-1 vermicompost, respectively. It seems that CHEMICAL PHOSPHOROUS FERTILIZER and vermicompost can increase quantity and quality yield in JOHN’s wort medicinal plant.

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