تأثير رش نوعين من الأسمدة العضوية Izomen و Laq Humus في نمو و إكثار نبات الأجاف الأمريكي Agave americana

الملخص EN

An experiment was conducted during the growing season of 2010-2011 at the nursery of collge of AgricultureUniversity of Kufa.

The aim was to study the effect of spraying different levels of two organic fertilizers;“Izomen” (1.5, 0.70, and 0.00) ml.

L-1 and was“Laq Humus” levels (1.5, 0.70 and 0.00)ml.

L-1and the interaction effect on growth and offshoots production ofAgave Americana.

The experimental designed wasRandomized Complete Block Design(R,C.B.D) in three replicates.

Their Means were compared by using least significant differences(LSD) at 0.05 level.

The Results showed that there was significant effect of spraying “Izomen” at the concentration ofl 0.7 ml.

L-1on all the studied parameters.

Leaf numbers was increased which reached 19.50 leaf.Plant-1compared with the control treatment.

Meanwhile plant height reached 23.21 cm compared with control treatment.

The effect was applicable on leaf width and thickness and offshoots number.

Spraying Laq Humus with the concentration of 1.5 ml.

L-1gave the highest means on studied growth parameters; leaf numbers was increased as well as the height which reached 18.75 and 18.5 cm in comparison with the control treatment (spraying with distilled water), 0ffshoots number reached 4.67 compared with the control.

There was also significant improvementin fresh dry weight, leaf chlorophyll content and carbohydrate.

The interaction between the two factor;Izomen at concentration level 0.7 ml.

L-1with the Laq Humus at concentration 1.5 ml.

L-1demonstrated highest means on all studied aforementioned characteristics compared with the control treatment which showed the least means.