RESPONSE OF ADHATODA VASICA L.GROWN IN DIFFERENT SOILS TO SOME FERTILIZATION TREATMENTS

Document Type : Original Article

Abstract

Pots experiment was carried out at Farm of Fac. Agric. Kafrelsheikh
Univ. during 2013 and 2014 seasons to study the effect of soil type (clayey
and clay+ sand (2:1v/v), some fertilization treatments (T1- control (NPK full
dose ), T2- 75%NPK dose +5%FYM(from soil dry weight in pot), T3- 50%NPK
dose +10%FYM, T4- 25%NPK dose + 5%FYM+2g/l active dry yeast (ADY)
+200ppm ascorbic acid (AA), T5- 5%FYM+ 2g/l ADY+300ppm salicylic acid
(SA),T6- 5%FYM+ 2g/l ADY+300ppm AA, T7- 2g/l ADY+300ppm of each SA
or AA, T8- 10%FYM+2g/l ADY, T9- 10%FYM+200ppm of each SA or AA and
T10- 10%FYM+1g/l ADY+200ppm of each SA or AA) and their interaction on
the vegetative growth and chemical composition of
 
Adhatoda vasica..The
obtained data can be summarized as follows: Effect of soil type 1- The
planting in clayey soil resulted in higher values of plant height, number of
shoots/plant, main stem diameter, plant leaf area and fresh and dry weights of
aerial parts and roots/ plant in the two seasons, except for the pant height in
the first season, and the differences between clayey and clay +sand (2:1)did
not reach the significant level in case of shoot number, main steam diameter
and plant leaf area in the first season also , in case of plant height in the
second season. 2- The planting in clay +sand (2:1) gave higher significant
values of leaf green color degree in the first season and total carbohydrates in
the both seasons .While the plants cultured in clayey soil had higher values of
N,P, and K% in the two seasons and the difference between the two used
soils did not reach the significant level in case of N and P% in the second
season only. For the effect of fertilization treatments: 1-Higher significant
values of plant height resulted from T8 in the first season and T9 in the
second one, shoots number/plant were recorded for T2 in the first season and
T1,T2,T3and T9in the second season, main stem diameter resulted from T4 in
the first season and T3in the second one, higher plant leaf area was recorded
for T3 in the first season and T2 and T3 in the second one and the fresh and
dry weights of aerial parts and roots resulted from applying T3in the two
seasons. 2- The fertilization with T1in the first season and T2 in the second
one resulted in higher values of leaf green color degree and applying T3
caused significant increases in total carbohydrates, N, P and K% in the both
seasons. Concerning interaction between soil type and fertilization treatments,
data showed that the planting in either clayey soil or clay +sand (2:1) soil and
fertilization with treatments contain NPK at different percentages combined by
FYM at different levels caused significant increases in the most growth and
chemical parameters investigated in the both seasons.