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Articles by A. M. Ranjha
Total Records ( 2 ) for A. M. Ranjha
  S. M. Mehdi , A. M. Ranjha , M. Sarfraz , G. Hassan and M. Sadiq
  The physical, chemical, morphological and mineralogical properties of three soil series viz. Shahdara, the Sultanpur and the Lyallpur, forming a chrono-sequence, were determined to quantify the effect of time on soil formation. The data showed that the relative particle-size differentiation in various horizons of the profiles increased with age and an illuviated clay profile developed progressively. There was no consistent increase in organic matter content with age. This trend was, most probably, due to high temperature and low rainfall, which resulted in little accumulation of organic matter in all the cases. The amount of CaCO3 decreased with soil age, while no definite trend of the cation exchange capacity and NH4OAc extractable bases was observed. Both the ECe & pHs, decreased with soil age. The mineralogical variation of these alluvial soils was not found to be related to pedogenic processes but parent material. The illite content was the same through out the profile in all the series. Smectite was more in Shahdara and decreased with age. Vermiculite was absent while chlorite and kaolinites were present, though in minor amounts, in all the three series.
  Iqbal M. , M. Aslam , A. M. Ranjha and J. Akhtar
  In a solution culture study two rice varieties i.e. KS-282 (salt tolerant) and BG 402-4 (salt sensitive) were grown to determine the effect of Zn applied @ 1, 10, 100 and 1000 nM ZnSO4 on shoot fresh weight and concentration of Na, K, Cl, Zn and P, when exposed to NaCl salinity (0 and 70 mol m-3 NaCl). Addition of Zn caused increase in shoot fresh weight under both saline and non-saline conditions, however growth was higher under O salinity. Concentration of Zn, P and K were increased while those of Na and Cl decreased in shoot under saline conditions. Salt tolerance rice maintained low concentration of Na, Cl and P but higher that of Zn and K.
 
 
 
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