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Title

STUDY ON THE EFFECTS OF HUMIC ACID-UREA FERTILIZERS APPLICATION ON SOME AGRONOMIC CHARACTERISTICS OF MAIZE (ZEA MAYS L)

Pages

 Start Page 31 | End Page 40

Abstract

 In order to investigate the effect of urea with humic acid vermiCOMPOST and urea with humic acid mushroom COMPOST substrate application on some nutrients concentration and some growth characteristics of MAIZE plant (Zea mays cv. single cross-704), a greenhouse experiment was conducted in randomized completely design with three replications. This study compared five different types of treatments which were urea without additives (U), urea with pure humic acid vermiCOMPOST powdered form (U+Vp), urea with pure humic acid mushroom COMPOST substrate powdered form (U+Mp), urea with impure humic acid vermiCOMPOST powdered form (U+Vi), urea with impure humic acid mushroom COMPOST substrate powdered form (U+Mi). The results indicated that plant high, shoot dry and fresh weight were markedly higher when HUMIC ACID-UREA fertilizers were applied. In addition, the results indicated that the concentration of P, K and N in MAIZE plant significantly increased by HUMIC ACID-UREA experiment treatments. The greatest amount of phosphorus, potassium and nitrogen observed in treatment MAIZE plants received urea with pure humic acid vermiCOMPOST powdered form (U+Vp), urea with pure humic acid mushroom powdered form (U+Mp), urea with impure humic acid vermiCOMPOST powdered form (U+Vi) and urea with impure humic acid mushroom COMPOST substrate powdered form (U+Mi). Some agronomic characteristics of MAIZE plants were markedly increased when humic acid- urea fertilizers were applied.

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