Abstract
Avocado trees which had recovered from root rot (caused by Phytophthora cinnamomi [Pc]) received different types of organic amendments, while chemical treatment was discontinued. Condition of trees from all treatments declined significantly during the third and forth year of the study, possibly as a result of drought stress. The yield of trees receiving no treatment at all, or only cattle manure, declined significantly after three or four years. However, legume cover crop (Dolichos lablab) or lucerne straw mulch (on its own or combined with cattle manure) seemed to inhibit yield decline. However, results must be seen in the light of the drought and may differ in years of normal rainfall. UITTREKSEL Avokadobome wat herstel net van wortelvrot (veroorsaak deur Phytophthora cinnamomi [Pc]) het verskillende soorte organiese materiaal ontvang, terwyl chemiese beheer gestaak is. Die toestand van borne uit alle behandelings het betekenisvol verswak gedurende die derde en vierde jaar van die Studie en kan moontlik toegeskryf word aan droogtespanning. Opbrengs van borne wat geen behandeling, ofalleenlikbeesmis ontvang het, het betekenisvol afgeneem na drie of vier jaar. 'n Peuldekgewas (Dolichos lablab,) of lusernstrooi (alleen of gekombineerdmetbeesmis) het opbrengsverlagings kynbaar geinhibeer. Resultate moet egter gesien word in die lig van die droogte en mag verskil in normale reenvaljare.
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Claims 6
Claim · model-written summary
Condition of all treated avocado trees declined significantly in the third and fourth years, possibly due to drought.
- Taxon
- AVOCADO
Persea americanat0 - Outcome
- Condition of treese0
- Direction
- declinede0
- Qualifier
- possibly as a result of drought stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Condition of trees from all treatments declined significantly during the third and forth year of the study, possibly as a result of drought stress.”
t0“AVOCADO”
Claim · model-written summary
Yield of untreated avocado trees declined significantly after three or four years.
- Taxon
- AVOCADOPersea americanat0
- Treatment
- no treatment at alle0
- Outcome
- yield of treese0
- Direction
- declinede0
- Qualifier
- after three or four yearse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The yield of trees receiving no treatment at all, or only cattle manure, declined significantly after three or four years.”
t0“AVOCADO”
Claim · model-written summary
Yield of avocado trees receiving cattle manure alone declined significantly after three or four years.
- Taxon
- AVOCADOPersea americanat0
- Treatment
- only cattle manuree0
- Outcome
- yield of treese0
- Direction
- declinede0
- Qualifier
- after three or four yearse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The yield of trees receiving no treatment at all, or only cattle manure, declined significantly after three or four years.”
t0“AVOCADO”
Claim · model-written summary
A Dolichos lablab cover crop appeared to inhibit avocado yield decline.
- Taxon
- AVOCADOPersea americanat0
- Treatment
- legume cover crop (Dolichos lablab)e0
- Interactor
- Dolichos lablab
Lablab purpureuse0other - Outcome
- yield declinee0
- Direction
- inhibite0
- Comparator
- no treatment at alle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“legume cover crop (Dolichos lablab) or lucerne straw mulch (on its own or combined with cattle manure) seemed to inhibit yield decline.”
e1“The yield of trees receiving no treatment at all, or only cattle manure, declined significantly after three or four years.”
t0“AVOCADO”
Claim · model-written summary
Lucerne straw mulch alone appeared to inhibit avocado yield decline.
- Taxon
- AVOCADOPersea americanat0
- Treatment
- lucerne straw mulche0
- Outcome
- yield declinee0
- Direction
- inhibite0
- Comparator
- no treatment at alle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“legume cover crop (Dolichos lablab) or lucerne straw mulch (on its own or combined with cattle manure) seemed to inhibit yield decline.”
e1“The yield of trees receiving no treatment at all, or only cattle manure, declined significantly after three or four years.”
t0“AVOCADO”
Claim · model-written summary
Lucerne straw mulch combined with cattle manure appeared to inhibit avocado yield decline.
- Taxon
- AVOCADOPersea americanat0
- Treatment
- combined with cattle manuree0
- Outcome
- yield declinee0
- Direction
- inhibite0
- Comparator
- no treatment at alle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lucerne straw mulch (on its own or combined with cattle manure) seemed to inhibit yield decline.”
e1“The yield of trees receiving no treatment at all, or only cattle manure, declined significantly after three or four years.”
t0“AVOCADO”
The same questions in other papers
fertilization · yield · Persea americana (avocado)Positive and negative results
9 papers in the same direction as this paper · 4 in the opposite direction
- negative
- no effect
- no effect
10 papers more in this group
See all 14 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.