Nitrogen application timing and soil inorganic nitrogen dynamics under no-till oat/maize sequential cropping
نویسندگان
چکیده
منابع مشابه
Long-term trends in nitrous oxide emissions, soil nitrogen, and crop yields of till and no-till cropping systems.
No-till cropping can increase soil C stocks and aggregation but patterns of long-term changes in N2O emissions, soil N availability, and crop yields still need to be resolved. We measured soil C accumulation, aggregation, soil water, N2O emissions, soil inorganic N, and crop yields in till and no-till corn-soybean-wheat rotations between 1989 and 2002 in southwestern Michigan and investigated w...
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Emphasis and interest in carbon (C) and nitrogen (N) storage (sequestration) in soils has greatly increased in the last few years, especially C with its’ potential to help alleviate or offset some of the negative effects of the increase in greenhouse gases in the atmosphere. Several questions still exist with regard to what management practices optimize C storage in the soil profile. A long-ter...
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As the world's population increases, marginal lands such as drylands are likely to become more important for food production. One proven strategy for improving crop production in drylands involves shifting from conventional tillage to no-till to increase water use efficiency, especially when this shift is coupled with more intensive crop rotations. Practices such as no-till that reduce soil dis...
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A two-year experiment was conducted in the field to measure the combined impact of tilling and N fertilization on various agronomic traits related to nitrogen (N) use efficiency and to grain yield in maize cultivated in the presence of a cover crop. Four years after conversion to no-till, a significant increase in N use efficiency N harvest index, N remobilization and N remobilization efficienc...
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Pedology and Precision Agriculture Laboratories, Agriculture and Agri-Food Canada, 979, Ave de Bourgogne, SteFoy, Quebec, Canada G1W 2L4 (e-mail: [email protected]); Potato Research Centre, Agriculture and AgriFood Canada, 850, Lincoln Road, PO Box 20280, Fredericton, New Brunswick, Canada E3B 4Z7; and Institute of Research and Development in Agri-Environment, 2700 Einstein St., Quebec, Queb...
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ژورنال
عنوان ژورنال: Revista Brasileira de Ciência do Solo
سال: 2006
ISSN: 0100-0683
DOI: 10.1590/s0100-06832006000400011