Impacts of Farming Systems on Soil Mineral Nitrogen Levels in Irrigated Processing Tomatoes

Poudel, Diwas; Horwath, W. R.; Mitchell, J.P.; Temple, S.R.

doi:10.17660/actahortic.2001.542.42

Cited by 4 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These results are similar to those reported by Basker (1992). Previous studies at the SAFS Project (Clark et al 1998b;Poudel et al, 2000) reported lowest petiole and soil nitrate concentrations, particularly late in the tomato growing season (first fruit to harvest), in the organic system and highest levels in the conventional system as a result of sidedress N application. Greater soil N availability may explain the highest fruit N concentration found in conventional system.…”

Section: Fruit Yield and Mineral Compositionsupporting

confidence: 90%

Changes of Tomato Yield and Fruit Elemental Composition in Conventional, Low Input, and Organic Systems

Colla

Mitchell

Poudel

et al. 2002

Journal of Sustainable Agriculture

View full text Add to dashboard Cite

The Sustainable Agriculture Farming System (SAFS) Project was begun in 1988 to compare conventional 4-year and 2-year rotations receiving synthetic fertilizers and pesticides to low input and organic farming systems. In 1998 and 1999, we evaluated the influence of 10 years of organic, low input, and conventional management practices on soil chemical properties, processing tomato yields, and fruit mineral composition. The organic system had highest soil total C, N, soluble P, exchangeable Ca, and K levels as a result of 10 years of manure application and cover crop use. In both years, fruit yields were similar in the three farming systems. Organic fruits contained highest amounts of P, and Ca. Conventionally-grown tomatoes were richer in N, and Na, Giuseppe Colla is a PhD student at

show abstract

Section: Fruit Yield and Mineral Compositionsupporting

confidence: 90%