Intervention effectmodel-written summary

The combined 75% inorganic and 25% poultry-manure nitrogen with PSB and Azotobactor gave the significantly highest potato yield attributes and total tuber yield

A claim from Agro-techniques for increasing yield potential of potato (Solanum tuberosum) under drip irrigation · 2014

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The combined 75% inorganic and 25% poultry-manure nitrogen with PSB and Azotobactor gave the significantly highest potato yield attributes and total tuber yield

Treatment
Application of 75% N inorganic fertilizer + 25 % N organic (Poultry manure) + PSB + Azotobactore4
Outcome
yield attributes and total tuber yielde4
Direction
higheste4

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

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

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

Verbatim

e4

“Application of 75% N inorganic fertilizer + 25 % N organic (Poultry manure) + PSB + Azotobactor was found non significant to weed control while produced significantly highest yield attributes and total tuber yield”

✓ located verbatim in the source · abstract, characters 855–1068
t0

“Agro-techniques for increasing yield potential of potato (Solanum tuberosum) under drip irrigation”

✓ located verbatim in the source · title, characters 0–98

Title

Agro-techniques for increasing yield potential of potato (Solanum tuberosum) under drip irrigation

Chandresh Kumar Chandrakar; S. K. Dwivedi; Nivedita Nivedita 2014

Other claims from this paper (5)

Record rev-ae57acffae5ce99394ccfa83287d2667e02e68422d08f720a89ffe73794946f0 · schema claims-v0.9 · position 6 in the model’s answer

nitrogen · yield · Solanum tuberosum (potato)Results differ

132 papers: 109 positive, 23 negative or no effect

108 papers in the same direction as this claim · 20 in the opposite direction · 3 reporting no difference from an alternative

  1. positive
    Half inorganic NPK plus half organic RDN improved tuber yield, nutrient uptake, soil fertility and returns relative to other treatments.

    Productivity and Soil Health of Potato (Solanum tuberosum L.) Field as Influenced by Organic Manures, Inorganic Fertilizers and Biofertilizers under High Altitudes of Eastern Himalayas · 2012 · compared with other treatments

    Same directionCited by this paper

  2. no effect
    PCU and soluble nitrogen at equivalent rates yielded similarly in total and grade A tubers.

    Potato Response to a Polymer‐Coated Urea on an Irrigated, Coarse‐Textured Soil · 2009 · compared with soluble N

    Opposite direction

  3. negative
    Under dry soil conditions, split nitrogen application reduced tuber yield and size.

    Rate and timing of nitrogen fertilization of Russet Burbank potato: Yield and processing quality · 2004

    Opposite direction

  4. negative
    Variable-rate nitrogen application was unprofitable for the field compared with uniform nitrogen application.

    ECONOMIC AND ENVIRONMENTAL FEASIBILITY OF VARIABLE RATE NITROGEN FERTILIZER APPLICATION WITH CARRY-OVER EFFECTS · 1998 · compared with uniform nitrogen application

    Opposite direction

  5. negative
    Inadequate nitrogen limited production of maize and potatoes after the first year.

    Pasture growth and soil fertility · 1965

    Opposite direction

  6. no effect
    Potato yield was similar between N rates applied at emergence, except one farm in 2010

    Nitrogen Fertilizer Rate and Application Timing for Chipping Potato Cultivar Atlantic · 2014

    Opposite direction

  7. no effect
    At soil nitrate-supplying power of at least 50 p.p.m. N, added nitrogen gave little or no potato yield increase.

    MEASUREMENT OF NITRATE-SUPPLYING POWER OF SOILS BY AN INCUBATION METHOD AND CORRELATION WITH CROP YIELD RESPONSE · 1958

    Opposite direction

  8. no effect
    Water supply and nitrogen source did not change potato harvest index, which varied between 0.7 and 0.8.

    Harvest index of potato crop grown under different nitrogen and water supply. · 2009

    Opposite direction

123 papers more in this group

See all 132 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 claim · 48 in the opposite direction · 8 reporting no difference from an alternative

  1. positive
    Half inorganic NPK plus half organic RDN improved tuber yield, nutrient uptake, soil fertility and returns relative to other treatments.

    Productivity and Soil Health of Potato (Solanum tuberosum L.) Field as Influenced by Organic Manures, Inorganic Fertilizers and Biofertilizers under High Altitudes of Eastern Himalayas · 2012 · compared with other treatments

    Same directionCited by this paper

  2. 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

  3. 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

  4. 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

  5. no effect
    Increasing fertiliser in the field did not greatly increase potato nutrient uptake, particularly P and K, growth or yield.

    Effects of Globodera Rostochiensis and Fertilisers On the Mineral Nutrient Content and Yield of Potato Plants · 1980

    Opposite direction

  6. no effect
    Tuber yield was not increased when N fertilizer was applied to potato after forage crops.

    The effects of forage grasses and legumes on subsequent potato yield, nitrogen cycling, and soil properties · 2022

    Opposite direction

  7. no effect
    Potassium fertilization had no significant influence on harvest index.

    Nitrogen and Potassium Fertilization Responses of Potato (Solanum tuberosum) cv. Spunta · 2012

    Opposite direction

  8. no effect
    BCA treatments with half fertilizer did not differ significantly from the fully fertilized control in tuber number and weight.

    Control of bacterial wilt (ralstoniasolanacearum) in potato (Solanum tuberosum) using rhizobacteria and arbuscular mycorrhiza fungi. · 2018 · compared with complete fertilized control

    Opposite direction

441 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.