Soil Sampler
V. A. Johnson · W. L. Caskey
Jan 1952 · U.S. Department of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine
Ebook
4
Pages
About this ebook
Japanese beetle quarantine procedures provide for the shipment of plants grown in nursery sections treated under supervision with 25 pounds of DDT or 10 pounds of chlordane per acre and cultivated into the soil to a depth of 3 inches. Annual retreatement to maintain these concentrations is required. For this purpose the soils are sampled and the concentrations are determined by chemical analysis. The tool approved for use in taking these samples is described in this paper
Rate this ebook
Tell us what you think.
Reading information
Smartphones and tablets
Install the Google Play Books app for Android and iPad/iPhone. It syncs automatically with your account and allows you to read online or offline wherever you are.
Laptops and computers
You can listen to audiobooks purchased on Google Play using your computer's web browser.
eReaders and other devices
To read on e-ink devices like Kobo eReaders, you'll need to download a file and transfer it to your device. Follow the detailed Help Center instructions to transfer the files to supported eReaders.
