Sajjad Raza

5 Questions 8 Answers 0 Followers

Questions related from Sajjad Raza

Why pH decreases faster after CaCO3 depletion from soil?

CaCO3 has high buffering capacity and resist change in soil pH. After CaCO3 is lost from soil, the decrease in soil pH becomes rapid. Is it because other buffers are weak? I need papers or a...

06 June 2019 8,081 4 View

N fertilization release protons during nitrification, could someone please advise at how much soil depth these protons can travel?

During nitrification process, protons are released, which reduce the soil pH and results in soil acidification. I am interested in knowing at how much depth these protons can travel down the soil...

04 April 2019 8,640 8 View

How to determine Dicyandiamide (DCD) in soil using spectrophotometer?

We have used dicyandiamide (a well known nitrification inhibitor) in soil and I want to determine the degradation of dicyandiamide with time. An HPLC method is available for its determination,...

03 March 2018 5,211 3 View

How can we estimate the amount of nitrogen lost through leaching from soils if we know the amount of nitrogen input on a country level?

Please suggest me any relevant paper or model to be useful for country like Pakistan for the estimation of nitrogen lost through leaching from soils.

05 May 2016 9,388 4 View

How can we estimate amount of nitrogen consumed by livestock (each animal) in an year?

How cam we estimate the amount of nitrogen taken up by livestock (all animals) as their feed in an year for a country by utilizing the data of livestock population by FAO?

11 November 2015 9,210 3 View