Sivagnanam .S

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Questions related from Sivagnanam .S

How to determine organic carbon content in humic acid?

I need to determinate organic carbon content in humic acid solution. tell me correct reference or protocol of determinate OC content in humic acid solution.

22 September 2017 1,149 3 View

What is the biochemical reaction between nitrogen fertilizer and chlorophyll content?

give me related article and discussion.

09 January 2016 8,121 4 View

How can I predict leaf N content from chlorophyll content?

I have a chlorophyll data. estimated by 80% acetone method. how can i predict / calculate / derive / chlorophyll content to N content. Plz... give me your suggestion and references.

01 January 2016 3,795 5 View

Which nanometer (663, 645, 650, 510 and 480 nm) gives high absorption values in spectrophotometer in pigment analysis?

Measuring leaf pigments analysis (Chlorophyll a,b and carotenoied) by spectro photometer at different wave length (663, 645, 650, 510 and 480) gives high and low absorbance value. How?

25 November 2015 4,516 7 View

What is the role of perchloric acid (HClO4) in triacid for plant sample digestion?

anyone can give the correct reasons for adding HClO4 in triacid?

18 November 2015 6,726 4 View

Which is the easy, accurate and low cost method to estimate the freshly fixed N from atmosphere?

How is fix nitrogen in soil from atmosphere? How much N fix in soil per mm rain? Which is the easy, accurate and low cost method to estimate the freshly fixed N from atmosphere? How it is...

18 November 2015 2,708 1 View

How to select best wilks lamda values?

I have a result of stepwise discriminate (SDA) run by IBM SPSS statistics 20 tool. In this result shows wilks lambda 0.10, 0.09, 0.08, 0.07, 0.06, 0.05, 0.04, 0.3, 0.02 and 0.01. which is the...

07 November 2015 5,461 3 View

How can I develop a new nutrient index?

I have hyperspectral data (512_bands) different nutrient stress in rice at different stages. which methods are good for identify the nutrient stress index. any one can give good reference to...

03 November 2015 600 4 View

What is the ratio between chlorophyll a & b in rice?

why it is important? refer me any article.

16 October 2015 3,557 2 View