On-farm assessment of organic matter and tillage management on vegetable yield, soil, weeds, pests, and economics in California

Jackson, Louise E.; Ramirez, Irenee; Yokota, Ron; Fennimore, Steven A.; Koike, S. T.; Henderson, D.M; Chaney, William E.; Calderón, Francisco J.; Klonsky, Karen

doi:10.1016/j.agee.2003.11.013

Cited by 73 publications

(65 citation statements)

References 49 publications

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“…Before the cover crops were incorporated into the soil, the aboveground dry biomass was 11 ± 1.2 Mg ha −1 (with 2.8 % N content) for treatment V and 8.33± 2.1 Mg ha −1 (with 1.3 % N content) for treatment T. Our results are in agreement with previous studies, which observed that cover crops increase soil N content and soil organic matter (SOM) content (Jackson et al, 2004;Sainju et al, 2000, Ramos et al, 2010. In the experimental site we hypothesized a SOM increase after moving catch crops into the soil.…”

Section: Soil Nitrate Content In the Vineyardsupporting

confidence: 83%

Managing soil nitrate with cover crops and buffer strips in Sicilian vineyards

et al. 2013

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Abstract. When soil nitrate levels are low, plants suffer nitrogen (N) deficiency but when the levels are excessive, soil nitrates can pollute surface and subsurface waters. Strategies to reduce the nitrate pollution are necessary to reach a sustainable use of resources such as soil, water and plant. Buffer strips and cover crops can contribute to the management of soil nitrates, but little is known of their effectiveness in semiarid vineyards plantations. The research was carried out in the south coast of Sicily (Italy) to evaluate nitrate trends in a vineyard managed both conventionally and using two different cover crops (Triticum durum and Vicia sativa cover crop). A 10 m-wide buffer strip was seeded with Lolium perenne at the bottom of the vineyard. Soil nitrate was measured monthly and nitrate movement was monitored by application of a 15 N tracer to a narrow strip between the bottom of vineyard and the buffer and non-buffer strips. Lolium perenne biomass yield in the buffer strips and its isotopic nitrogen content were monitored. Vicia sativa cover crop management contributed with an excess of nitrogen, and the soil management determined the nitrogen content at the buffer areas. A 6 m buffer strip reduced the nitrate by 42 % with and by 46 % with a 9 m buffer strip. Thanks to catch crops, farmers can manage the N content and its distribution into the soil over the year, can reduced fertilizer wastage and reduce N pollution of surface and groundwater.

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Section: Soil Nitrate Content In the Vineyardsupporting

confidence: 83%

Managing soil nitrate with cover crops and buffer strips in Sicilian vineyards

et al. 2013

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“…Managing a cropping system to promote soil quality has implications for crop yield and economic returns (Jackson et al 2004) as well as environmental impact. To increase soil quality and have a minimal negative impact on the environment, trade-offs exist between the benefits and drawbacks of soil and crop management practices.…”

Section: Soil and Crop Managementmentioning

confidence: 99%

Organic production of vegetables: State of the art and challenges

Dorais¹

2007

Can. J. Plant Sci.

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Dorais, M. 2007. Organic production of vegetables: State of the art and challenges. Can. J. Plant Sci. 87: 1055-1066. In light of the growing concern of Canadians about animal waste, environmental pollution from fertilizers, water quality and greenhouse gas effects, as well as their growing interest in organically grown foods (20% annual growth in North America), the development of sustainable organic production systems for vegetable crops is essential for consumer satisfaction and Canadian grower competitiveness. The target of this paper is to review recent research results on the importance of appropriate soil properties, fertilizers and irrigation management on soil activity, plant growth and environmental health as well as product quality in term of nutritional value and safety issue. Species and cultivar selection, the use of grafting and plant growth promoters will also be discussed. This review will identify new challenges that organic growers have to fulfill in the face of a global market and public awareness of health attributes of food, and then conclude by identifying several prospects for future research with emphasis on the Agriculture and Agri-Food Canada research program.

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“…A multidisciplinary study compared shallow minimum tillage with conventional tillage for 2 years on a 20-acre (8-ha) field of silt loam soil in the Salinas Valley (Jackson et al 2004). Minimum tillage with the Sundance system retained permanent beds over the 2-year study, with tillage confined to the surface 8 inches (20 cm).…”

Section: Shallow Minimum Tillage Versus Conventional Tillagementioning

confidence: 99%