Influence of solid dairy manure and compost with an without alum on survival of indicator bacteria in soil and on potato

Entry, J.A. and Leytem, A.B. and Verwey, S. (2006) Influence of solid dairy manure and compost with an without alum on survival of indicator bacteria in soil and on potato. Environmental Pollution. 138:212-218.

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Abstract

We measured Escherichia coli, Enterococcus spp. and fecal coliform numbers in soil and on fresh potato skins after addition of
12 solid dairy manure and dairy compost with and without alum (Al 2(SO4)3) treatment 1, 7, 14, 28, 179 and 297 days after application.
13 The addition of dairy compost or solid dairy manure at rates to meet crop phosphorus uptake did not consistently increase E. coli
14 and Enterococcus spp. and fecal coliform bacteria in the soil. We did not detect E. coli in any soil sample after the first sampling day.
15 Seven, 14, 28, 179 and 297 days after solid dairy waste and compost and alum were applied to soil, alum did not consistently affect
16 Enterococcus spp. and fecal coliform bacteria in the soil. We did not detect E. coli in any soil, fresh potato skin or potato wash-water
17 at 214 days after dairy manure or compost application regardless of alum treatment. Dairy compost or solid dairy manure
18 application to soil at rates to meet crop phosphorus uptake did not consistently increase Enterococcus spp. and fecal coliform
19 numbers in bulk soil. Solid dairy manure application to soil at rates to meet crop phosphorus uptake, increased Enterococcus spp.
20 and fecal coliform numbers in potato rhizosphere soil. However, fresh potato skins had higher Enterococcus spp. and fecal coliform
21 numbers when solid dairy manure was added to soil compared to compost, N and P inorganic fertilizer and N fertilizer treatments.
22 We did not find any E. coli, Enterococcus or total coliform bacteria on the exterior of the tuber, within the peel or within a whole
23 baked potato after microwave cooking for 5 min.

Item Type:	Article
NWISRL Publication Number:	1180
Subjects:	Irrigated crops > Potato Manure > Composted manure Mass Import - autoclassified (may be erroneous)
Depositing User:	Users 5 not found.
Date Deposited:	20 Nov 2010 21:49
Last Modified:	01 Nov 2016 15:50
Item ID:	31
URI:	https://eprints.nwisrl.ars.usda.gov/id/eprint/31