Abstract
Four cultural amendments; spent mushroom compost, straw mulch, both compost and straw mulch, or neither, were applied to soils that were either fumigated or not fumigated in a field of potatoes subject to early dying and Colorado potato beetle defoliation. Two plant samples were harvested at two week intervals to measure shoot and tuber growth and mineral nutrition, and two rows were harvested for yield at maturity. Amending the soil with compost increased vegetative growth and shoot weight more than final yield of tubers. Compost amendment delayed tuber filling by several days. Fumigation partly controlled the loss of leaf area due to early dying, but it did not increase tuber yields, and in 1994 fumigation reduced tuber yield in compost amended soils. The effects of compost and straw mulch on tuber yield were related to the concentrations of N and P in leaves. The potato crop did not benefit from compost amendment combined with fumigation, because in fumigated soil there was no improvement in plant nutrition due to compost.
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Claims 7
Claim · model-written summary
Compost increased potato vegetative growth and shoot weight more than final tuber yield.
- Taxon
- Potato
Solanum tuberosumt0 - Treatment
- composte0
- Outcome
- vegetative growth and shoot weighte0
- Direction
- increasede0
- Comparator
- final yield of tuberse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato”
e0“Amending the soil with compost increased vegetative growth and shoot weight more than final yield of tubers”
Claim · model-written summary
Compost delayed tuber filling by several days.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- Compost amendmente0
- Outcome
- tuber fillinge0
- Direction
- delayede0
- Value
- several dayse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato”
e0“Compost amendment delayed tuber filling by several days”
Claim · model-written summary
Fumigation partly controlled potato leaf-area loss due to early dying.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- Fumigatione0
- Outcome
- loss of leaf area due to early dyinge0
- Direction
- partly controllede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato”
e0“Fumigation partly controlled the loss of leaf area due to early dying”
Claim · model-written summary
Fumigation did not increase potato tuber yields.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- Fumigatione1
- Outcome
- tuber yieldse0
- Direction
- did not increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato”
e0“it did not increase tuber yields”
e1“Fumigation partly controlled the loss of leaf area due to early dying”
Claim · model-written summary
In 1994, fumigation reduced potato tuber yield in compost amended soils.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- fumigatione0
- Outcome
- tuber yielde0
- Direction
- reducede0
- Qualifier
- in 1994e0
- Setting
- compost amended soilse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato in Fumigated or Nonfumigated Soil”
e0“in 1994 fumigation reduced tuber yield in compost amended soils”
Claim · model-written summary
Compost and straw mulch effects on tuber yield were related to leaf N and P concentrations.
- Taxon
- PotatoSolanum tuberosumt0
- Organ / stage
- leavese0
- Treatment
- compost and straw mulche0
- Compound
- N and Pe0
- Outcome
- tuber yielde0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato”
e0“The effects of compost and straw mulch on tuber yield were related to the concentrations of N and P in leaves”
Claim · model-written summary
Compost did not improve potato nutrition in fumigated soil.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- composte0
- Outcome
- plant nutritione0
- Direction
- no improvemente0
- Setting
- fumigated soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato”
e0“in fumigated soil there was no improvement in plant nutrition due to compost”
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