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Snap bean response to soil tillage management and cover crops

 

作者: D. S. NeSmith,   D. V. McCracken,  

 

期刊: Communications in Soil Science and Plant Analysis  (Taylor Available online 1994)
卷期: Volume 25, issue 13-14  

页码: 2501-2512

 

ISSN:0010-3624

 

年代: 1994

 

DOI:10.1080/00103629409369203

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

Snap beans (Phaseolus vulgaris)were grown using conventional tillage (CT) and no‐tillage (NT) soil management following either hairy vetch (Vicia villosaRoth) or rye (Secale cerealeL.) in 1992 and 1993 in the mountain regions of Georgia near Blairsville. Soil bulk density and inorganic nitrogen content as well as crop dry matter production and yield were monitored. Soil bulk density of the surface (0 to 10 cm) layer under NT exceeded that under CT at planting by as much as 0.33 Mg/m3. However, growth‐limiting bulk densities (values>1.45 Mg/m3) did not occur under either tillage regime. Inorganic soil nitrogen to a depth of 30 cm at planting and at five weeks after planting was similar for the two tillage systems. However, soil nitrogen (N) tended to be greater following hairy vetch than following rye. There were no significant effects of tillage or cover crop on plant stand or plant dry weight. Total yields were generally similar regardless of tillage or cover crop. A notable exception was that early yield in 1992 was 62% greater using NT. These results indicate great potential for use of conservation tillage and cover crops in the production of snap beans in the mountain regions of the southeastern United States.

 

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