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Title Summer cover crops and soil amendments to improve growth and nutrient uptake of okra
Creator/Author Wang, Q.R. ; Li, Y.C. ; Klassen, W. [University of Florida, Homestead, FL (United States). Center for Tropical Research & Education]
Publication Date2006 Apr 15
OSTI IdentifierOSTI ID: 20741176
Other Number(s)Journal ID: ISSN 1063-0198; TRN: 000600272
Resource TypeJournal Article
Resource RelationJournal: HortTechnology; Journal Volume: 16; Journal Issue: 2
Subject01 COAL, LIGNITE, AND PEAT; SOILS; FLY ASH; WASTE PRODUCT UTILIZATION; CROPS; VEGETABLES; YIELDS; COMPOST; UPTAKE; NUTRIENTS; FERTILIZERS
Description/Abstract A pot experiment with summer cover crops and soil amendments was conducted in two consecutive years to elucidate the effects of these cover crops and soil amendments on 'Clemson Spineless 80' okra (Abelmoschus esculentus) yields and biomass production, and the uptake and distribution of soil nutrients and trace elements. The cover crops were sunn hemp (Crotalaria juncea), cowpea (Vigna unguiculata), velvetbean (Mucuna deeringiana), and sorghum sudan-grass (Sorghum bicolor x S. bicolor var. sudanense) with fallow as the control. The organic soil amendments were biosolids (sediment from wastewater plants), N-Viro Soil (a mixture of biosolids and coal ash), coal ash (a combustion by-product from power plants), co-compost (a mixture of 3 biosolids: 7 yard waste), and yard waste compost (mainly from leaves and branches of trees and shrubs, and grass clippings) with a soil-incorporated cover crop as the control. As a subsequent vegetable crop, okra was grown after the cover crops, alone or together with the organic soil amendments, had been incorporated. All of the cover crops, except sorghum sudangrass in 2002-03, significantly improved okra fruit yields and the total biomass production. Both cover crops and soil amendments can substantially improve nutrient uptake and distribution. The results suggest that cover crops and appropriate amounts of soil amendments can be used to improve soil fertility and okra yield without adverse environmental effects or risk of contamination of the fruit. Further field studies will be required to confirm these findings.
Country of PublicationUnited States
LanguageEnglish
FormatSize: page(s) 328-338
System Entry Date2006 Jul 03

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