ISSN:
1573-5036
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary When a sample of Upper Greensand soil was shaken in dilute solutions of calcium chloride containing orthophosphate, microbial activity was sufficiently stimulated to alter the measured value of Schofield's phosphate potential. The effect was more rapid and more marked for air-dried than for field-moist soils. However, the effect on the potentialSP was not significant during the first 2 to 4 hours of shaking a moist sample, and probably not significant during the first 1/2 to 1 hour of shaking an air-dried sample. It was also shown that the changes in the phosphate potentialSP during the first few hours of shaking an untreated field sample are not due to microbial interference. These changes appear to result from the co-existence, in field soils, of micro-volumes of soil of potentialSP higher and lower than the mean for the soil (Part I, and Part III, in preparation).
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01376448
Permalink