التفاصيل البيبلوغرافية
| العنوان: |
Long-Term, Large-Scale Systems Research Directed Toward Agricultural Sustainability |
| المؤلفون: |
Wossink, A., Mueller, J.P., Creamer, N.G., Barbercheck, M., Raczkowski, Ch, Bell, M., Brownie, C., Collins, A., Fager, K., Hu, S., Jackson, L., Koenning, S., Kuminoff, N., Linker, M., Louws, F., Mellage, S., Monks, D., Orr, D., Walters, R., Seem, J., Tu, C., Wagger, M., Zhang, A. |
| المساهمون: |
Raupp, J., Pekrun, C., Oltmanns, M., Koepke, U. |
| المصدر: |
Wossink , A , Mueller , J P , Creamer , N G , Barbercheck , M , Raczkowski , C , Bell , M , Brownie , C , Collins , A , Fager , K , Hu , S , Jackson , L , Koenning , S , Kuminoff , N , Linker , M , Louws , F , Mellage , S , Monks , D , Orr , D , Walters , R , Seem , J , Tu , C , Wagger , M , Zhang , A , Raupp , J (ed.) , .... |
| بيانات النشر: |
Verlag Dr. Koester |
| سنة النشر: |
2006 |
| المجموعة: |
The University of Manchester: Research Explorer - Publications |
| الوصف: |
A long term, large-scale study comparing five farming systems was initiated in September 1998 at the Center for Environmental Farming System located near Goldsboro, North Carolina, USA. The systems include: (1) conventional short-rotation best management practices (BMP); (2) cropping and animal husbandry (C/A); (3) organic production system (ORG); (4) plantation forestry/woodlot system (FOR); and (5) old field successional ecosystem (SUCC). Data reported hitherto were observations from the first five years of the study. In general, soil samples from the C/A-p and SUCC were found to have higher air-dry aggregate stability than the ORG and BMP-ct (conventional tillage) and -nt (no-tillage) subplots. Bulk density was lowest in ORG and highest in C/A-p. Analysis of phospholipid fatty acid composition of soil microbes revealed the divergence of the microbial community structure among ecosystems with high microbial diversity in organic and no-tillage systems. The numbers of free-living bactivores and fungivores, apparently responding to organic sources of nitrogen including a winter cover crop, were higher in organic than in BMP-ct systems in July but not in other dates in 2001. The numbers of predatory nematodes were highest in the FOR-bw and the SUCC systems. Cumulative abundance of soil microarthropods was higher in the ORG than in BMP-ct, FOR-bw and pasture C/A-p subplots, but not different from BMP-nt and SUCC systems. This pattern was driven by the abundance of soil mites, which comprised approximately 70% of the sampled arthropod community. Collembola and all other arthropods comprised approximately 20 and 10% of the soil arthropod communities, respectively. In the first two years, the organic system was most effective in enhancing soil microbial biomass C and N among the transition strategies. By the third year, soil microbial biomass C and N in the reduced-input transition strategies were significantly higher than those in the conventional (averaging 32 and 35% higher, respectively), although they were ... |
| نوع الوثيقة: |
book part |
| اللغة: |
English |
| الاتاحة: |
https://research.manchester.ac.uk/en/publications/e3f25e29-3323-443c-97f4-97f471ed26c1 |
| Rights: |
info:eu-repo/semantics/restrictedAccess |
| رقم الانضمام: |
edsbas.533D38CE |
| قاعدة البيانات: |
BASE |