title: Soil Chemistry, 2nd Edition
author:  Hinrich L. Bohn 
description: Soil Chemistry, 2nd Edition is a thoroughly updated expansion of the authors highly successful earlier book, linking basic solution and colloidal chemistry, clay mineralogy, and the soil chemistry literature. It describes the major processes of change that soils undergo, including weathering, clay mineral formation, cation retention, and anion and molecular retention. Professors Bohn, McNeal, and OConnor examine the relationship between these processes and the major problems of soil acidity, salinity, and flooded soils, and provide complete coverage of how these processes and problems interact with, and are affected by, the biosphere, atmosphere, and hydrosphere. Unique features of the second edition include:
zlib_text: DETERMINATION OF 238U, 232Th
  AND 40K CONCENTRATION IN
  SOIL SAMPLES FROM
  KATHMANDU VALLEY, NEPAL
  A Dissertation
  Submitted to the Dean Ofﬁce, Institute of Science and Technology,
  Tribhuvan University, Kirtipur in the partial fulﬁllment for the
  Requirement of Master’s Degree in Physics
  By
  PRAJWAL LAMICHHANE
  September, 2019
  
  Recommendation
  It is certiﬁed that Mr. Prajwal Lamichhane has carried out the dissertation work enti-
  tled “DETERMINATION OF 238U, 232Th AND 40K CONCENTRATION IN SOIL
  SAMPLES FROM KATHMANDU VALLEY, NEPAL” under our supervision and
  guidance.
  We commend the dissertation in the partial fulﬁllment for the requirement of Master’s
  Degree of Science in Physics.
  Supervisor
  Dr. Buddha Ram Shah
  Senior Scientist
  Physical Science Laboratory
  Nepal Academy of Science
  and Technology(NAST)
  Khumaltar, Lalitpur, Nepal
  Date:
  Supervisor
  Mr. Pitamber Shrestha
  Co-ordinator
  Department of Physics
  Amrit Campus
  Lainchaur, Kathmandu,
  Nepal
  Date:
  i
  
  Acknowledgement
  At the leading edge, I am highl