Abstract
A pot culture study was conducted on a
calcareous loamy clay satine-sodic soil (pH> K.4, EC
27 dS m', SAR 141,4, gypsum requirement 2.0 me 100
g'). Ten kg soil was filled in each pot having leaching
provision. Two levels of lime 4 (originally present) and
12 % were developed. Commercial HiSO* ffl 50 and
100 % of soil GR was applied. One set of treatments
received water (EC2 dS m', SAR 12, RSC 3 mmoU L
') with Ca:Mg ratio of 1:1 and the other with 1:6. In
the control, canal water was usedfor irrigation. Wheat
variety Faisalahad 85 was sown and after harvesting it,
rice KS 282 was transplanted in the same pots.
Fertilizers of NPK were applied to both the crops at
recommended rates. In wheat, tillers, plant height,
TDM and grain yields were, in general, significantly
higher in acid treatments (T*, Ts, T«, Ti) irrespective
of the type of irrigation water. In wheat straw, Mg and
Cl concentrations were not affected significantly, Ca
was more with higher rate of acid (Ts, 7V) while Na
was more with lima treatments (Ti, TJ, TI, TV). In
wheat gram, Na and Ca concentrations were
statistically affected by the treatments, Na being more
with Ti, Ts, Ts,- T? while Ca with Ti and T*. As the Mg
in irrigation water increased, concentration ofMg and Cl in grain increased. Similar effects of treatments were observed regarding the straw and paddy yields and chemical composition of rice.
R. Ahmad, A. Ghafoor, M. Abbas , N. Yasntin. (1997) EFFECT OF BRACKISH WATER HAVING DIFFERENT CA:MG RATIOS ON THE GROWTH AND CHEMICAL COMPOSITION OF WHEAT AND RICE, The Journal Soil & Environment , Volume 13, Issue (1-4).
-
Views
316 -
Downloads
39
