Rohan Oak

8 Questions 18 Answers 0 Followers

Questions related from Rohan Oak

Which book/ research article would you suggest for developing a good fundamental understanding of basic branches of Agriculture science ?

Assuming following divisions of agriculture science and applied agriculture. 1) Seed and variety characterisation, and plant breeding 2) Agronomy and Soil science (Classification and methods of...

02 February 2019 4,211 3 View

For Olsen soil P test (alkaline soil), 1M sodium bicarbonate extractant is used. Does Na in extracting solution restricts P- estimation with ICP-OES?

For alkaline soils, Olsen's method using 1M sodium bicarbonate is recommended for determination of soil available P. However my ICP-OES technician says that because there is Na concentration in...

12 December 2017 3,062 4 View

Requesting correct procedure for Mineral N (ammonium & nitrate) Rayment and Higginson 1992 ?

Dear experts, I am searching for this procedure for chemical analysis of wood charcoal/ ash. "Mineral N (ammonium & nitrate) Rayment and Higginson 1992" From literature source I learn this...

11 November 2017 10,081 1 View

How to raise soil pH during on going cultivation?

Hello, I am conducting agronomic experiment, growing Soybean on a trial plot of 100 ft x 50 ft. It's a lateritic soil with slightly acidic pH around 6.5 Plants are 65 days however sufficient...

09 September 2017 5,012 64 View

Nutrient uptake pot culture study: Soil analysis - Plant available nutrients, extraction process for ICP vs AAS?

Hello All, I am undertaking nutrient uptake study in pot culture with Soybean. I need to analyse plant available nutrients in soil and plant. Presenting you a slightly clumsy situation and...

09 September 2016 3,122 4 View

How can I adjust pH, to study soil nutrient availability on addition of organic amendment at different pH range (Eg. at 7 - 7.5 OR at 7.5 to 8 etc)?

Soil nutrient availability is influenced by pH. An organic amendment does a function of nutrient addition at the same time it changes soil pH. More importantly, it also modifies soil CEC and...

08 August 2016 3,093 16 View

To make a Soil classification based on fertility levels, how many number of samples would mean a representative sample? Suitable statistical method?

I would like to study soils in a defined geographic region in India. I plan to collect soil samples from different locations and analyse fertility parameters: pH, CEC, electric conductivity, 12...

05 May 2016 9,481 5 View

What exactly does "Biological yield" mean?

Is it the total weight of the plant? Inc all, root, shoot, grain (whole plant) ?

07 July 2015 2,207 4 View