ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] Five grams of 〈 2 mm soil is placed in a 125-ml. Erlenmeyer flask, 30 ml. of water is added, and the soil-water mixture boiled under reflux for 60 min, using a rheostat-controlled electric hot-plate. Twenty millilitres of 10 per cent (w/v) solution of potassium sulphate is added to the cooled ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/211892a0