تأثير نسجة التربة وتركيز المحلول المغذي "Unigreen " في نمو نبات الذرة الصفراء Zea mays L

Abstract

An experiment was conducted from March 19th to April , 20th , 2008 in order to assess the effect of soil texture (sandy or clay) and 3 concentrations of the nutrient solution Unigreen (i.e . o.5 , 1.0 and 2.0 ) ml/l on the growth of maize plants . A completely randomized design (C . R . D . ) with three replicates was adopted . Data were statistically analyzed and means were compared using ( L . S . D . ) at 0.05 probability level . Results could be summarized as follow:1-The soil texture had a significant effect on some parameters where clay soil gave higher values of plant height , leaf area and absolute growth rate of fresh plants . Meanwhile , plants grown in a sandy soil gave higher values of root`s size , diameter and fresh weight.2-Plants grown with the nutrient solution of (1 ml/l) gave a significant increase of plant height , shoot dry weight , absolute and relative growth rates of fresh plants .3-The interaction between soil texture and nutrient solution was significant on leaf area and relative growth rate of dry plants .