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Общее количество найденных документов : 4804
Показаны документы с 1 по 20
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1.
| Soil aggregation as influenced by cultural practices in Saskatchewan II: Brown and dark brown chernozemic soils // Can. J. Soil. Sci., 1993. Vol. 73, N 4.-С.597-612
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| Soil aggregation as influenced by cultural practices in Saskatchewan I: Black Chernozemic soils // Can. J. Soil Sci., 1993. Vol. 73, N 4.-С.579- 595
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| Veenhof D.W. A comparison of the compression characteristics of saturated agricultural soils in a remoulded and structurally intact condition // Can. J. Soil Sci., 1993. Vol. 73, N 4.-С.646
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4.
| Anthropogenic impacts on the stability of some stepe agroecosystems // 11 Int. Symp. Environ. Biogeochem., Salamaca, Sept. 27-Oct. 1, 1993. -Salamanca, 1993.-С.0
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| Mathan K.K. Influence of rainfall on nutrient loss in sediment and runoff water in two watersheds under contrasting landscape systems // J. Indian Soc. Soil. Sci, 1993. Vol. 41, N 3.-С.606-608
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| Denitrification losses from grazed grassland // Proc. 2nd ESA Congress, 1992. -Warwick, 1993.-С.436-437
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| Bergstrom D.W. An empirical model of denitrification // Can. J. Soil Sci., 1993. Vol. 73, N 4.-С.421-431
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| Olfs H.-W. Characterization of the N mineralization potential of soils by measurement of biomass and extractable organic nitrogen fraction // Proc. 2nd ESA Congress, 1992. -Warwick, 1992.-С.420-421
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9.
| Asmus EinfluSS unterschiedlicher Humusgehalte im Boden auf die N- und C-Mineralisierung und die Wirkung von DungungsmaSSnahmen // Arch. Acker- und Pflanzenbau und Bodenk., 1991. Vol. 35, N 6.-С.393-401
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| Cooperband L.R. Baseline soil characteristics of a humid tropical silvopastoral system and changes in selected soil properties // Turrialba, 1993. Vol. 43, N 1.-С.22-36
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11.
| Sparling Graham P. Ratio of Microbial Biomass Carbon to Soil Organic Carbon as a Sensitive Indicator of Changes in Soil Organic Matter // Austral. J. Soil Res., 1992. Vol. 30, N 2.-С.195-207
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12.
| Baker J.L. Fertilizer management effects on leaching of labeled nitrogen for notill corn in field lysimeters // J. Environ. Qual., 1994. Vol. 23, N 2.-С.305-310
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| Jemison John M. Nitrate leaching from nitrogen-fertilized and manured corn measured with zero-tension pan lysimeters // J. Environ. Qual., 1994. Vol. 23, N 2.-С.337-343
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14.
| Interrelationship between soil salinity and crop yields on vertisols // J. Indian Soc. Soil Sci., 1992. Vol. 40, N 4.-С.838- 839
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| Влияние средств химизации на экологическое состояние почв // Физикохимия торфа и сапропеля, пробл. их перераб. и комплекс. использ.. -Тверь, 1994, Ч. 2.-С.61-62
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16.
| Reitz Characteristics of European hare Lepus europaeus use of space in a French agricultural region of intensive farming // Acta theriol, 1994. Vol. 39, N 2.-С.143- 157
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17.
| Lewandowski Spatial distribution of brown have Lepus europaeus populations in habitats of various types of agriculture // Acta theriol, 1993. Vol. 38, N 4.-С.435-442
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18.
| Бутовский Р.О. Медь и цинк в жужелицах придорожного агроценоза земляники // Агрохимия, 1994, N 7-8.-С.100-107
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19.
| Николов Влияние на някои пестициди върху мезобионтите в културните ценози Ч. I: Collembola (Apterigota) царевича // Растениевод. науки., 1994. Vol. 31, N 1-2.-С.91-94
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| Николов Влияние на някои пестициди върху мезобионтите в културните ценози Ч. II: Oribatei (Acarina) царевича // Растениевод. науки, 1994. Vol. 31, N 1-2.-С.95-98
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