What are the reliable tools for soil pH and NPK testing?

More Freedom Mendoza's questions See All

Are there available scales or questionnaires to measure change management?

Seeking to connect with authors who may want to share their scales or questionnaires to measure change management.

27 September 2020 374 6 View

Carbon content over 100 in a charcoal sample under treatment at 1200 C?

After elemental analysis of the samples, carbon content of the charcoal was 102 (several repetitions were made, but obtained the same values), the equipment was tested with other samples of wood...

02 September 2020 1,971 2 View

Google Earth Engine for Multitemporal analysis (Land Use Land Cover Change)?

Hello. I am reading about Google Earth Engine (GEE) and their applications for vegetation, landcover and agriculture mapping. I am analyzing an area of 20Mha to determine a multitemporal changes,...

01 May 2020 2,059 11 View

Can anyone share with me a detailed protocol for performing a Plaque Reduction Assay to test anti-viral activity?

I am working with a team looking into testing antiviral activity of naturally occurring substances. We have not decided on the specific protocols but I am leaning towards the plaque reduction...

18 April 2020 762 3 View

How to fix ions in a protein during MD visualization?

I performed a molecular dynamics in GROMACS 2019.2 of a protein with zinc fingers (50 amino acids). When I visualize it with Chimera the ions jump everywhere.

05 April 2020 9,401 7 View

How can I implement a script in Chimera?

I want to evaluate several structures, the distances between two atoms.

21 March 2020 8,486 3 View

Why is there no yellow formation? (Alpha Glucosidase inhibtion assay)?

I'm currently doing the assay for inhibition of glucosidase. 50 uL of extract and 50 uL of glucosidase were incubated for 15 mins at 37 C. Then, 50 uL of 4-nitrophenyl-a-D-glucopyranoside. It...

09 September 2019 1,160 3 View

How do you create a micelle instead of a liposome?

Hello, I trying to create a PEGylated liposome through the post-insertion method. This method uses pre-formed liposomes and incubates them with peptides conjugated on micelles to transfer the...

09 May 2019 4,619 3 View

What antibody is used for the E. histolytica amebiasis antibody test(blood)?

I am trying to see if I can test the serum of infected mice with this antibody

15 January 2019 8,257 6 View

What is the standard number of E. histolytica parasites for cecum injection?

Will be attempting to pass some parasites in vivo (suseptible mice) and was wondering what is considered acceptable in the field.

22 August 2018 3,136 4 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

Does the pressure(-600 mmHg) affects pH?

When I conducted the degassing experiment using decompression under anaerobic condition(and I used ferrous based chelating agent), the oxidized ferric were observerd. So, could you tell me the...

03 March 2021 4,892 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View

Sample dilution for quantitative analysis using ELISA?

If the detection range is in ng/ml but the reference range is in ug/ml for a molecule or protein in serum or plasma .how to dilute and what is the initial volume to be taken for quantitative analysis

02 March 2021 7,670 3 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

Jayson F. Enciso

Use Soil pH meter for soil pH.

For NPK, they a different methods. In order to measure this nutrients. I suggest, you should process the soil sample from analytical lab like UPLB Soil Analysis Lab.

Fatemeh Mousavi

Dear Freedom Mendoza

For NPK results, the nutrient level is indicated on a scale from 0 (depleted) to 4 (surplus). pH test results are indicated on a scale from 4.5 to 7.5. Make sure your soil contains the three main nutrients (NPK). The site below can help you.

https://www.epicgardening.com/best-soil-test-kit/