Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Edwin C. Berry"'
Autor:
Cynthia A. Cambardella, D. L. Karlen, D. B. Jaynes, T. S. Colvin, Edwin C. Berry, J.K. Radke, T. C. Kaspar, Sally D. Logsdon, Timothy B. Parkin
Publikováno v:
Proceedings of the Third International Conference on Precision Agriculture
Multiple linear regression analysis was used to relate crop yield patterns observed over a seven year period (1989-1995) with patterns. in soil properties measured in 1994 for one field in central Iowa. Our results emphasize the importance of soil st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0b6bf3c4048b5a0f0c0bb91550bbbaf
https://doi.org/10.2134/1996.precisionagproc3.c19
https://doi.org/10.2134/1996.precisionagproc3.c19
Publikováno v:
Biology and Fertility of Soils. 32:166-172
The influence of compaction on Diplocardia ornata (Smith) burrowing and casting activities, soil aggregation, and nutrient changes in a forest soil were investigated using pot microcosms. Treatments included two levels each of compaction, organic mat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14d84cfeeaef3cdad8e34709fa6036f4
https://doi.org/10.1007/s003740000232
https://doi.org/10.1007/s003740000232
Publikováno v:
Biology and Fertility of Soils. 31:323-328
Earthworms may alter the physical, chemical, and biological properties of a forest soil ecosystem. Any physical manipulation of the soil ecosystem may, in turn, affect the activities and ecology of earthworms. The effects of removing organic matter (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a160060171a2e63d98beed6d9aa67d6
https://doi.org/10.1007/s003740050663
https://doi.org/10.1007/s003740050663
Autor:
Edwin C. Berry, Timothy B. Parkin
Publikováno v:
Soil Biology and Biochemistry. 31:1765-1771
Earthworms play an active role in soil nitrogen cycling. Past research has shown that earthworm castings are enriched in NO3− and NH4+ and show a high potential for microbial nitrification and denitrification. Little information is available on mic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::800c628f380e0164806fd2791bda17cf
https://doi.org/10.1016/s0038-0717(99)00085-1
https://doi.org/10.1016/s0038-0717(99)00085-1
Publikováno v:
Applied Soil Ecology. 13:31-38
Physical changes caused by forest management practices can have a dramatic effect on the soil biota in a forest ecosystem. The effects of soil compaction associated with harvesting on earthworm populations and selected soil properties were measured i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::031204f6419273c662e760d181bf6b20
https://doi.org/10.1016/s0929-1393(99)00017-7
https://doi.org/10.1016/s0929-1393(99)00017-7
Publikováno v:
Agriculture, Ecosystems & Environment. 57:27-34
Research was conducted in 1989 and 1990 to determine if Beauveria bassiana in combination with Bacillus thuringiensis or carbofuran is an effective tactic for season-long management of the European corn borer, Ostrinia nubilalis . A granular formulat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a242494bdf3beb8b10b01ae120f83768
https://doi.org/10.1016/0167-8809(95)01011-4
https://doi.org/10.1016/0167-8809(95)01011-4
Autor:
Edwin C. Berry, David H. Alban
Publikováno v:
Applied Soil Ecology. 1:243-249
Soil samples were collected over 14 years from a sandy loam forest soil in northern Minnesota. During the study earthworm numbers increased from zero to 592 m−2, the forest floor weight and thickness decreased by about 85%, and the E horizon was co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d4cde6af3af720fe8082836cfac9a55
https://doi.org/10.1016/0929-1393(94)90015-9
https://doi.org/10.1016/0929-1393(94)90015-9
Autor:
Timothy B. Parkin, Edwin C. Berry
Publikováno v:
Soil Biology and Biochemistry. 26:1233-1238
Earthworms are intimately involved in the cycling of C and N in soil. Earthworm casts are enriched in mineral N; however, there have been few studies of the dynamics of microbial N transformations associated with earthworm casts. We evaluated the N-t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c9c90f7a7a2fa08d90a9221ab137f1b
https://doi.org/10.1016/0038-0717(94)90148-1
https://doi.org/10.1016/0038-0717(94)90148-1
Autor:
Edwin C. Berry, J.K. Radke
Publikováno v:
American Journal of Alternative Agriculture. 8:164-174
Soil physical and biological properties often change when different cropping, tillage, or management systems are imposed. Changes occasionally occur quickly, but usually become evident only after months or years. Infiltration rates are affected by se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2dfc96382fa098854b2f046dbd3c604a
https://doi.org/10.1017/s0889189300005385
https://doi.org/10.1017/s0889189300005385
Autor:
Edwin C. Berry, Douglas L. Karlen
Publikováno v:
American Journal of Alternative Agriculture. 8:21-26
Effects of soil fauna on soil quality are largely unknown. Our objective was to learn whether long-term soil management has significantly affected earthworm species and populations at two Iowa locations. Soil cores were collected in fall 1989, spring
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9ad291cc16c7cd5bafade3364cbdac0
https://doi.org/10.1017/s0889189300004872
https://doi.org/10.1017/s0889189300004872