Effects of seaweed saps on soil health and productivity of potato (Solanum tuberosum L.)

Abstract

A field experiment was conducted during the rabi season of 2012–13 at Raipur to study the effects of seaweed saps on yield, nutrient uptake and nutrient use efficiency of potato (Solanum tuberosum L.) and soil fertility status in Inceptisol of Chhattisgarh. Foliar spray was applied thrice at different concentrations (0, 2.5, 5.0, 6.25, 7.5, and 10.0% v/v) of seaweed extracts, viz. Kappaphycus and Gracilaria. Foliar applications of seaweed extract significantly enhanced the yield, nutrient uptake and soil fertility parameters. The highest tuber yield was recorded with the application of 10% Gracilaria Sap + recommended dose of fertilizer (RDF), followed by 10% Kappaphycus Sap + RDF extract resulting in an increase by 11.31 and 9.38% tuber yield, respectively comparedto the control (water spray +RDF). The highest NPK uptake by tuber and haulm were observed under 10% Gracilaria Sap + RDF. After the harvest of the crop indicated maximum available N (265.51 kg ha-1) and available K (389.39 kg ha-1) was observed under 10% Gracilaria Sap+ RDF. Higher values of available P (11.77 kg ha-1) was recorded with 6.25% Kappaphycus Sap + 50% RDF.

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Claims 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 10% Gracilaria sap with recommended fertilizer increased tuber yield by 11.31% compared with the control.

Taxon: potatoSolanum tuberosumt0
Treatment: 10% Gracilaria Sap + recommended dose of fertilizer (RDF)e0
Outcome: tuber yielde0
Direction: increasee0
Value: 11.31e0
Comparator: control (water spray +RDF)e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

*Solanum tuberosum* · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

t0
“potato (Solanum tuberosum L.)”
✓ located verbatim in the source · title, characters 59–88 · show in text ↑

e0
“10% Gracilaria Sap + recommended dose of fertilizer (RDF), followed by 10% Kappaphycus Sap + RDF extract resulting in an increase by 11.31 and 9.38% tuber yield, respectively comparedto the control (water spray +RDF)”
✓ located verbatim in the source · abstract, characters 593–809 · show in text ↑

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 10% Kappaphycus sap with RDF increased tuber yield by 9.38% compared with the control.

Taxon: potatoSolanum tuberosumt0
Treatment: 10% Kappaphycus Sap + RDF extracte0
Outcome: tuber yielde0
Direction: increasee0
Value: 9.38e0
Comparator: control (water spray +RDF)e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim

t0
“potato (Solanum tuberosum L.)”
✓ located verbatim in the source · title, characters 59–88 · show in text ↑

e0
“10% Gracilaria Sap + recommended dose of fertilizer (RDF), followed by 10% Kappaphycus Sap + RDF extract resulting in an increase by 11.31 and 9.38% tuber yield, respectively comparedto the control (water spray +RDF)”
✓ located verbatim in the source · abstract, characters 593–809 · show in text ↑

Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

The 10% Gracilaria sap with RDF gave the highest tuber and haulm NPK uptake.

Taxon: potatoSolanum tuberosumt0
Treatment: 10% Gracilaria Sap + RDFe1
Outcome: NPK uptake by tuber and haulme1
Direction: higheste1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim

t0
“potato (Solanum tuberosum L.)”
✓ located verbatim in the source · title, characters 59–88 · show in text ↑

e1
“The highest NPK uptake by tuber and haulm were observed under 10% Gracilaria Sap + RDF”
✓ located verbatim in the source · abstract, characters 811–897 · show in text ↑

Associationobservedoriginal resultmeasured

Claim · model-written summary

After harvest, available soil N was at its maximum, 265.51 kg ha-1, under 10% Gracilaria sap with RDF.

Taxon: potatoSolanum tuberosumt0
Treatment: 10% Gracilaria Sap+ RDFe2
Outcome: available Ne2
Direction: maximume2
Value: 265.51 kg ha-1e2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim

t0
“potato (Solanum tuberosum L.)”
✓ located verbatim in the source · title, characters 59–88 · show in text ↑

e2
“After the harvest of the crop indicated maximum available N (265.51 kg ha-1) and available K (389.39 kg ha-1) was observed under 10% Gracilaria Sap+ RDF”
✓ located verbatim in the source · abstract, characters 899–1051 · show in text ↑

Associationobservedoriginal resultmeasured

Claim · model-written summary

After harvest, available soil K was at its maximum, 389.39 kg ha-1, under 10% Gracilaria sap with RDF.

Taxon: potatoSolanum tuberosumt0
Treatment: 10% Gracilaria Sap+ RDFe2
Outcome: available Ke2
Direction: maximume2
Value: 389.39 kg ha-1e2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim

t0
“potato (Solanum tuberosum L.)”
✓ located verbatim in the source · title, characters 59–88 · show in text ↑

e2
“After the harvest of the crop indicated maximum available N (265.51 kg ha-1) and available K (389.39 kg ha-1) was observed under 10% Gracilaria Sap+ RDF”
✓ located verbatim in the source · abstract, characters 899–1051 · show in text ↑

Associationobservedoriginal resultmeasured

Claim · model-written summary

Available soil P was higher, 11.77 kg ha-1, under 6.25% Kappaphycus sap with 50% RDF.

Taxon: potatoSolanum tuberosumt0
Treatment: 6.25% Kappaphycus Sap + 50% RDFe3
Outcome: available Pe3
Direction: Highere3
Value: 11.77 kg ha-1e3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim

t0
“potato (Solanum tuberosum L.)”
✓ located verbatim in the source · title, characters 59–88 · show in text ↑

e3
“Higher values of available P (11.77 kg ha-1) was recorded with 6.25% Kappaphycus Sap + 50% RDF”
✓ located verbatim in the source · abstract, characters 1053–1147 · show in text ↑

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Foliar applications of seaweed extract enhanced yield, nutrient uptake and soil fertility parameters of potato.

Taxon: potatoSolanum tuberosumt0
Treatment: Foliar applications of seaweed extracte4
Outcome: yield, nutrient uptake and soil fertility parameterse4
Direction: enhancede4

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim

t0
“potato (Solanum tuberosum L.)”
✓ located verbatim in the source · title, characters 59–88 · show in text ↑

e4
“Foliar applications of seaweed extract significantly enhanced the yield, nutrient uptake and soil fertility parameters”
✓ located verbatim in the source · abstract, characters 412–530 · show in text ↑

Gracilaria · yield · Solanum tuberosum (potato)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

positive
Foliar 10% Gracilaria sap with RDF gave the highest tuber yield, 11.31% above control.
Effect of Seaweed Saps on Growth, Nutrient Uptake and Yield of Potato ( Solanum tuberosum L.) · 2016 · compared with control (water spray + RDF)
Same direction

See all 2 papers →

Kappaphycus · yield · Solanum tuberosum (potato)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

positive
10% Kappaphycus sap with RDF increased tuber yield by 9.37% over control, ranking second.
Effect of Seaweed Saps on Growth, Nutrient Uptake and Yield of Potato ( Solanum tuberosum L.) · 2016 · compared with control (water spray + RDF)
Same direction
positive
Plant count at harvest was greatest under 7.5 Kappaphycus Spray + 100% RDF and lowest under 6.25% + 50% RDF.
Evaluation of Fertilizer potential of sea weed (Kappaphycus and Gracilaria) saps in potato crop in North Eastern hill region of India: Evaluation of Fertilizer Potential of Sea Weed Saps in Potato Crop · 2017 · compared with 6.25% + 50% RDF
Same direction

See all 3 papers →

other · yield · Solanum tuberosum (potato)Results differ

78 papers: 73 positive, 5 negative or no effect

72 papers in the same direction as this paper · 5 in the opposite direction

no effect
Amendments had no significant effect on tuber yield in any year.
Reduction of potato tuber disease with organic soil amendments in two Prince Edward Islands fields · 2008
Opposite direction
negative
Compost delayed tuber filling by several days.
Growth, Yield and Nutrition of Potato in Fumigated or Nonfumigated Soil Amended with Spent Mushroom Compost and Straw Mulch · 1998
Opposite direction
no effect
Humic substances did not affect total or commercial tuber number and fresh weight.
Humic substances: effects on potato growth and yield · 2022
Opposite direction

74 papers more in this group

See all 78 papers →

botanical · yield · Solanum tuberosum (potato)Positive and negative results

39 papers: 35 positive, 4 negative or no effect

34 papers in the same direction as this paper · 4 in the opposite direction

negative
The 1.2% neem plus PBO treatment produced low tuber yield, suggesting phytotoxicity.
Feeding Inhibition and Mortality Effects of Neem-Seed Extract on the Colorado Potato Beetle (Coleoptera: Chrysomelidae) · 1988
Opposite direction
negative
Nettle extract plots had the lowest tuber yield apart from untreated controls.
Studies on the effects of stinging nettle extract, phosphoric acid and conventional fungicide combinations on the management of potato late blight and tuber yield in the Highlands of Kenya · 2014 · compared with corresponding treatments
Opposite direction
no effect
Botanical treatment did not affect plant emergence or yield.
Management of Black scurf (Rhizoctomia solani) of potato through seed treatment with botanicals · 2009
Opposite direction

35 papers more in this group

See all 39 papers →

application · yield · Solanum tuberosum (potato)Positive and negative results

191 papers: 177 positive, 14 negative or no effect

176 papers in the same direction as this paper · 14 in the opposite direction

no effect
Foliar zinc below 1.08 g per plant did not significantly affect Maris Piper tuber yield.
Bio-fortification of potato tubers using foliar zinc-fertiliser · 2012
Opposite direction
no effect
Foliar P had no effect on tuber number or yield.
Effects of soil- and foliar-applied phosphorus fertilizers on the potato (Solanum tuberosum) crop · 2001
Opposite direction
negative
Root dipping lowered harvestable dry matter yield compared with soil infestation for potato Element and Astarte, flax, sugarbeet and barley.
Formation of microsclerotia of Verticillium dahliae on various crops · 1995 · compared with soil infestation treatment
Opposite direction

187 papers more in this group

See all 191 papers →

fertilization · yield · Solanum tuberosum (potato)Positive and negative results

450 papers: 394 positive, 56 negative or no effect

393 papers in the same direction as this paper · 48 in the opposite direction · 8 reporting no difference from an alternative

negative
Without fertilizer potato yield fell more than winter rye yield.
The influence of fertilization and rotation on soil organic matter and plant yields in the long-termEternal Rye trial in Halle (Saale), Germany · 2000 · compared with winter rye
Opposite direction
negative
Vegetable yields under compost treatments were lower than under mineral fertilizers during the first two years.
Enhanced Food Quality: Effects of Composts on the Quality of Plant Foods · 1993 · compared with mineral fertilizers
Opposite direction
no effect
Nitrogen fertilization in the greenhouse did not increase cyanophycin yield compared with control tubers.
Tuber‐specific cphA expression to enhance cyanophycin production in potatoes · 2009 · compared with control tubers
Opposite direction

446 papers more in this group

See all 450 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.

Abstract

Claims 7

The same questions in other papers

Gracilaria · yield · Solanum tuberosum (potato)Results agree

Kappaphycus · yield · Solanum tuberosum (potato)Results agree

other · yield · Solanum tuberosum (potato)Results differ

botanical · yield · Solanum tuberosum (potato)Positive and negative results

application · yield · Solanum tuberosum (potato)Positive and negative results

fertilization · yield · Solanum tuberosum (potato)Positive and negative results