Does the envelope need a stamp?

Yes, you will have to buy a priority mail stamp for about seven bucks

Can this be used to determine "soil percolation" capabilities of a person's yard ? Can it tell makeup % of clay, sand, loam, organic?

I don't think so. If you would like to know about the percolation rate of the soil in your yard, the most reliable method is a field measurement where you dig a hole in the soil and fill it with water. Return every few hours to monitor the rate at which the water level goes down. I recommend staking a cheap yard stick in the hole. It is relatively simple to calculate the percolation rate in inches/hour. Ideally, this would be done when the surrounding soil is moist, so you should refill the hole a few times and use the percolation rate from the third filling. Alternatively, wait for the rainy season. If you would like to know the distribution of particle sizes in your soil, you might try a basic "jar test". All you need is a jar and water. This will give you a very rough idea about the texture of your soil.

Is there an additional cost to mail in or is postage included in the price of the kit?

Yes you will have to pay postage to send it back for testing. You will have your results in 24-48 hours after they receive your sample.

Does it test for sulfur?

Thank you for your question about the Whitetail Institute Laboratory Soil-Test Kit. According to the manufacturer, "No, this test does not test for Sulfur, but it does test for other nutrients like Phosphorus (P), Potassium (K), Calcium (Ca), and Magnesium (Mg)." Please let us know if you have any other questions or concerns. Thank you again, and have a wonderful day!

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Whitetail Institute Laboratory Soil Test Kit, Ensures The Most Successful Deer Food Plot Possible, Professional Consultation Included, Receive Results Within One Week

Product ID: 20573195

💰Saves money on fertilizer

🧪Comprehensive soil analysis

⏱️Results in 1 week

R701

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌿 Unlock the secret to the ultimate deer food plot—test smart, grow smarter!

FAST TURNAROUND - Receive detailed results and expert recommendations within just one week—speed meets accuracy.
EFFORTLESS TESTING - All-in-one kit designed for easy use—no lab trips or complicated procedures needed.
COST EFFICIENT GROWTH - Optimize your spending by applying only what your soil truly requires—maximize ROI on every seed.
PRECISION SOIL INSIGHTS - Know exactly how much lime and fertilizer your plot needs—no guesswork, no waste.
EXPERT GUIDANCE INCLUDED - Professional consultation ensures your food plot thrives, turning your land into a deer magnet.

The Whitetail Institute Laboratory Soil Test Kit delivers precise soil composition analysis with results in one week, helping you optimize lime and fertilizer use. Designed for easy at-home testing, it includes professional consultation to ensure your deer food plot achieves maximum success while saving you money.

Specifications

ASIN	B00XOBFSH2
Age Range Description	Adult
Best Sellers Rank	#21,459 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #10 in Soil Test Kits
Brand Name	Whitetail Institute
Customer Reviews	4.4 4.4 out of 5 stars (825)
Educational Objective	Soil Composition Analysis and Food Plot Success Guidance
Global Trade Identification Number	00789976000091
Included Components	Soil Test Kit
Item Dimensions	9 x 7 x 1 inches
Item Type Name	Soil Test Kit
Item Weight	2.72 ounces
Manufacturer	Whitetail Institute of North America
Manufacturer Minimum Age (MONTHS)	1
Manufacturer Part Number	STK
Manufacturer Warranty Description	1-Year Warranty
Material Type	Blend
Model Number	STK
Number of Items	1
Set Name	Soil Test Kit
Size	1
Theme	Insects
UPC	789976000091
Unit Count	1 Count

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