تأثير بعض المبيدات الحشرية على النمو والمحتوى اليخضورى ومستويات العناصر الغذائية فى بعض أصناف نبات البرسيم (Medicago sativa L.)

Abstract

The present work investigates the effects of different concentrations of two types of systemic pesticides: Drago Combi which belongs to Carbamtes and Chloronicotinyl (neoniticotinoid) group on growth, chlorophyll content and nutrients composiotion in two Medicago sativa L. varieties. The current study also confirmed that the effect on some growth parameters (dry weight of shoots and roots:shoot ratio) chlorophyll content (a, b and total) and levels of P & K was according to the type of pesticide