Matteo Francioni

13 Questions 29 Answers 0 Followers

Questions related from Matteo Francioni

Filed experiments replicated in space and in time must have the exact experimental desgin. But do the need also the have the same randomization?

Hello to everyone, I've had several discussions with my colleagues about setting up field experiments to be replicated in different environments. We agree that each experiment must have exactly...

17 March 2023 2,662 2 View

Posthoc test after two-way ANOVA (two factors with two levels)?

Hi everyone, I was wondering if runnig a posthoc test regardeless of a significant interaction might make sense. I have prepared a dataset with obviously invented data but which can help to the...

03 February 2021 8,202 1 View

Standard deviation of the mean VS standard deviation of a mean of means. Am I wrong?

Hello to every one, Let's assume I've measured something on 3 different subjects once every month. I can calculate the standard deviation and report it on each date of measurement (please find...

30 September 2020 822 4 View

One way or Two-ANOVA in my experiment?

Hi everyone, I would like to have your opinion about the statistical test to be used to properly analyze my data. I have monitored soil CO2 efflux from a grassland managed with three different...

07 November 2019 6,611 4 View

Which kind of termometer do you use into static chambers for soil GHG emissions?

We are bulding static chambers for CO2/N2O emissions from soils. We are not sure which kind or brand of termometer to include for measuring air T°C variations inside the chambers. Any experience...

24 July 2017 3,326 3 View

Measurement of GHG Flux from soils using static chambers. How can I realize my chambers?

Hi to everyone! I would like to set up an experiment to measure CO2 and N2O effluexes from soil. In this I will sample air with syringe and then analyze its ghg concentration via gas...

19 April 2017 5,937 6 View

Soil respiration: g C / m2 h or g CO2 / m2 h?

Hi everyone! Reading many papers concerning soil repiration I've found different ways to report annual mean soil respiration rates: g CO2 m-2 h-1 μmol CO2 m-2 s-1 g C m-2 h-1 The conversion from...

29 August 2016 8,612 26 View

I'm searching for a good Pedotransfer program for bulk density estimation. Any suggestions?

I would like to try to estimate the bulk density of some soil samples where I determined the Total Organic Carbon with Springer-Klee method. Soil is from central Italy and has: Texture (sand 19% ±...

01 June 2016 8,239 6 View

GPS Collars for sheep movement tracking. Which is the minimun number of devices per flock if I want good data for statistic analysis?

For my PhD thesis I would like to track 3 different sheep flocks. Collars are quite expansive and I was thinking to attach just one GPS on a leader animal. Maybe it would be not enough to get data...

12 September 2014 3,118 13 View

Publishing multiple articles from a partially-used data set

Goodmorning everyone I know that when you use the same dataset to write more articles you run the risk of not being ethically correct, the phenomenon of salami-slicing research. But what if I had...

01 January 1970 1,742 5 View

Repeated measure ANOVA in Complete Randomized Block Design

Hello everyone, I would like to receive information and exchange opinions concerning the correct use of analysis of variance in a certain experimental design. The reason why I'm starting this...

01 January 1970 2,967 13 View

Quick method to calculate energy (MJ) for wheat and alfalfa crops starting from dry matter?

Hello everybody, I have at my disposal some production data (t dry matter ha-1) of wheat and alfalfa-crops under Mediterranean conditions. I would like to estimate the energy output of the two...

01 January 1970 7,722 3 View

Orthogonal design experiments: how to carry out the analysis?

Hello to all, reading some scientific articles I came across experiments conducted with orthogonal designs. I think I have sensed its great potential, especially regarding the reduction of...

01 January 1970 8,626 2 View