Intervention effectmodel-written summary

Omitting sulfur and potassium significantly lowered maize grain crude protein, fat and fiber content.

A claim from Maize Grain Quality as Influenced by 46 Years’ Continuous Application of Fertilizers, Farmyard Manure (FYM), and Lime in an Alfisol of North-western Himalayas · 2020

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Omitting sulfur and potassium significantly lowered maize grain crude protein, fat and fiber content.

Taxon
maizeZea mayse0
Treatment
The omission of sulfur and potassiume3
Outcome
crude protein, fat, and fiber contente3
Direction
lowere3
Qualifier
100% NPK (-S) and 100% NP, respectivelye3
Comparator
the treatments where sulfur and potassium were applied along with nitrogen and phosphoruse3

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValue

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“quality and yield of maize (Zea mays L.) in a 46-year long-term experiment in an acid Alfisol of Himachal Pradesh, India”

✓ located verbatim in the source · abstract, characters 305–425
e3

“The omission of sulfur and potassium (100% NPK (-S) and 100% NP, respectively) recorded significantly lower crude protein, fat, and fiber content compared to the treatments where sulfur and potassium were applied along with nitrogen and phosphorus”

✓ located verbatim in the source · abstract, characters 804–1051

Title

Maize Grain Quality as Influenced by 46 Years’ Continuous Application of Fertilizers, Farmyard Manure (FYM), and Lime in an Alfisol of North-western Himalayas

Anjali Thakur; R. P. Sharma; N. K. Sankhyan; et al. Communications in Soil Science and Plant Analysis 2020. doi:10.1080/00103624.2020.1854289

Other claims from this paper (9)

Record rev-09dfd499265f23de59de4a93fb5d72fba75868b0c289b4ecfc3b3d233c0e0380 · schema claims-v0.9 · position 6 in the model’s answer

sulfur atom · quality: protein · Zea mays (maize)Results differ

15 papers: 13 positive, 2 negative or no effect

12 papers in the same direction as this claim · 2 in the opposite direction

This claim is about lacking the nutrient, so it counts the other way round here.

  1. no effect
    Sulfur did not increase crude protein concentration in corn silage.

    Nitrogen and Sulfur Effects on the Yield and Quality of Corn Grown for Grain and Silage · 1990

    Opposite direction

  2. no effect
    Sulfur level had no significant effect on protein percentage.

    Ameliorating effect of Nitrogen and Sulfur on quality of different corn hybrids · 2015

    Opposite direction

  3. positive
    Increasing sulphur and zinc improved crude protein, ash and calcium content.

    Fodder yield, nutrient uptake and quality of baby corn (Zea maysL.) as influenced by NPKS and Zn fertilization · 2015

    Same direction

  4. positive
    Sulfur application raised grain protein concentration.

    Sulfur Application Improves the Nutritional Quality of Maize by Regulating the Amino Acid Balance of Grains · 2023

    Same direction

  5. positive
    Nitrogen and sulphur levels increased protein content and protein yield of QPM maize.

    Response of nitrogen and sulphur levels on productivity and profitability of QPM hybrid (Zea mays) under dryland condition of Eastern Uttar Pradesh · 2014

    Same direction

  6. positive
    Sulphur and zinc fertilization up to 45 kg and 6 kg ha−1 tended to increase crude protein content in cobs and fodder.

    Response of Sweet Corn (Zea mays L. saccharata Sturt) to Sulphur and Zinc Fertilization · 2010

    Same direction

  7. positive
    The combined treatment gave maximum protein content of 8.49%.

    Integration of Phosphate Solubilising Bacteria, Sulphur Oxidizing Bacteria with NPK on Maize (Zea mays) · 2021

    Same direction

  8. positive
    Increasing sulphur or silicon rates significantly increased maize grain protein content.

    Effect of sulphur and silicon application on the yield and chemical composition of maize grown under saline soil conditions · 2016

    Same direction

6 papers more in this group

See all 15 papers →

potassium · quality: protein · Zea mays (maize)Results agree

18 papers: 18 positive, 0 negative or no effect

17 papers in the same direction as this claim

This claim is about lacking the nutrient, so it counts the other way round here.

  1. positive
    Correcting P and K deficiencies increased lysine content and nutritional value.

    Protein quality and amino acid‐protein relationships of maize, sorghum and rice grain as influenced by nitrogen, phosphorus, potassium and soil moisture stress · 1985

    Same direction

  2. positive
    Potassium application significantly increased maize grain protein content by up to 13.68% under straw return.

    Effects of straw return with potassium fertilizer on the stem lodging resistance, grain quality and yield of spring maize (Zea mays L.) · 2023 · compared with no potassium application

    Same direction

  3. positive
    Foliar potassium humate significantly enhanced grain protein and oil.

    RESPONSE OF MAIZE PLANTS TO DIFFERENT N-SOURCES AND FOLIAR APPLICATION OF POTASSIUM HUMATE · 2018

    Same direction

  4. positive
    Crude protein content, crude protein yield, and nutrient content and uptake by grain and straw increased with the higher potassium level (30 kg K2O ha-1).

    Effect of Nitrogen, Phosphorus and Potassium on Yield, Quality, Nutrient Content and Uptake on Hybrid Maize (Zea mays L.) · 2022

    Same direction

  5. positive
    The treatment increased crude protein content.

    INFLUENCE OF BIOCHAR AS A SOIL AMENDMENT ON YIELD AND QUALITY OF MAIZE IN ALFIOSL OF THOOTHUKUDI DISTRICT OF TAMILNADU, INDIA · 2015

    Same direction

  6. positive
    P and K application increased grain total protein content of high-oil corn

    Effect of nitrogen, phosphorus and potassium application on grain yield and qualities of high-oil and high-starch corn · 2004

    Same direction

  7. positive
    Potassium application increased crude protein content by 9.40%-21.5%.

    Effects of potassium application on nutrient absorption dynamics,biomass and quality formation of forage maize · 2007 · compared with no-potassium treatment

    Same direction

  8. positive
    The higher potassium and zinc treatment improved maize protein content and protein yield over farmer practice.

    Exceeding Potassium and Zinc Application Rate above Farmers Practiced Rate Improves Dry Matter Partitioning, Photosynthetic Attributes, Yield and Quality of Maize (Zea mays L.) under Dryland Condition · 2020 · compared with farmers adopted practice

    Same direction

9 papers more in this group

See all 18 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.