Potentials and limitations of mycorrhizal inoculation illustrated by experiments with field-grown cassava

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cg.coverage.countryColombia
cg.coverage.iso3166-alpha2CO
cg.coverage.regionSouth America
cg.identifier.doihttps://doi.org/10.1007/bf02375570
cg.isijournalISI Journal
cg.issn1573-5036
cg.issue2
cg.journalPlant and Soil
cg.reviewStatusPeer Review
cg.subject.ciatCASSAVA
cg.subject.ciatPESTS AND DISEASES
cg.volume75
dc.contributor.authorHoweler, Reinhardt H.
dc.contributor.authorSieverding, Ewald
dc.date.accessioned2014-10-02T08:33:01Zen
dc.date.available2014-10-02T08:33:01Zen
dc.identifier.urihttps://hdl.handle.net/10568/43969
dc.titlePotentials and limitations of mycorrhizal inoculation illustrated by experiments with field-grown cassavaen
dcterms.abstractField inoculation trials with cassava (Manihot esculenta Crantz) were conducted in Quilichao (typic Dystropept soil) and Carimagua (Haplustox soil). In Quilichao, with a large and effective native VA-mycorrhizal (VAM) population, inoculation withGlomus manihotis did not increase cassava yields significantly, neither when different sources and levels of inoculum material were used, nor with different cassava cultivars, or after stabilizing soil temperature through mulching. Field inoculation did result in a decrease of the coefficient of variation with respect to yield. The high dependency of cassava on an effective VAM association was indicated by a marked decrease in yield after eradication of native VAM by soil sterilization. In Carimagua, with a lower native VAM population, mycorrhizal inoculation withG. manihotis increased yields significantly at intermediate levels of 100 kg/ha of applied P, using either inoculum of cassava orPanicum maximum roots or inoculum of a soil-root mixture of maize or tropical kudzu. Higher or lower levels of P decreased the effect of inoculation on yield. There were no significant differences among P sources, ranging from highly soluble triple superphosphate to low solubility rock phosphates. Inoculation with different VAM isolates had a variable effect on cassava yields, and showed that there may be an interaction between P fertilizer level and isolate efficiency. It is concluded that there may be a potential to increase yields or decrease the fertilizer P requirements of cassava through field inoculation with effective VAM isolates, in the vast areas of acid infertile Oxisols and Ultisols with low native VAM fungal populations, represented by Carimagua.en
dcterms.accessRightsLimited Access
dcterms.extentpp. 245-261
dcterms.issued1983-06
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.publisherSpringer
dcterms.subjectmanihot esculentaen
dcterms.subjectmycorrhizaeen
dcterms.subjectinoculationen
dcterms.subjectphosphorusen
dcterms.subjectglomus manihotisen
dcterms.subjectroot productivityen
dcterms.subjectcultivarsen
dcterms.subjectfertilizersen
dcterms.subjectproductivityen
dcterms.subjectcultivationen
dcterms.subjectnutritional requirementsen
dcterms.subjectmicorrizasen
dcterms.subjectinoculacionen
dcterms.subjectproductividad de raicesen
dcterms.subjectvariedadesen
dcterms.subjectfertilizantesen
dcterms.typeJournal Article

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