Evidence map›Paper›PMID 39187560›Full record

ArticleScientific reports2024

Spent coffee waste-derived biochar improves physical properties, water retention, and maize (Zea mays L.) growth in sandy soil.

Abdulaziz G Alghamdi, Abdulrasoul Alomran, Hesham M Ibrahim, Arafat Alkhasha, Mosaed A Majrashi

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Review
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Abdulaziz G AlghamdiSoil Sciences Department, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, 11451, Riyadh, Saudi Arabia. agghamdi@ksu.edu.sa.
Abdulrasoul AlomranSoil Sciences Department, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, 11451, Riyadh, Saudi Arabia.
Hesham M IbrahimSoil Sciences Department, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, 11451, Riyadh, Saudi Arabia.
Arafat AlkhashaSoil Sciences Department, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, 11451, Riyadh, Saudi Arabia.
Mosaed A MajrashiSoil Sciences Department, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, 11451, Riyadh, Saudi Arabia.

Funding

Researchers Supporting Project number (RSPD2024R825), King Saud University, Riyadh, Saudi Arabia RSPD2024R825
6 · The paper itself

Abstract

Adding organic soil amendments can improve the physical and hydrological properties of soil, subsequently enhancing fertility for better crop production. In this study, spent Arabica and Columbian coffee wastes and their respective biochars were evaluated as soil amendments to improve the physical and hydrological properties of loamy sand soil and enhance maize (Zea mays L.) crop growth. Spent Arabica coffee (AC) and Columbian coffee (CC) wastes were collected and transformed into biochar through pyrolysis process at 550 °C with a residence time of 3 h and pyrolysis rate of 5 °C per minute. The AC and CC derived biochar were termed as ABC and CBC, respectively. The produced soil amendments were applied to soil at 0% (control), 1%, 3%, and 5% in a column setup. The moisture characteristics, including water infiltration, evaporation, and water retention, were investigated. Thereafter, the prepared amendments were applied to loamy sand soils at 0% (control), 1%, 3%, and 5% (w/w) application rates. Maize growth was then observed for a period of 30 days under greenhouse conditions. Results of the column trials showed that ABC and CBC applied at 5% reduced the cumulative water evaporation by 57%-66% and cumulative infiltration by 124%-181% compared to control. Likewise, 5% application of ABC and CBC resulted in 101 to 130% higher water retention in loamy sand soil. Results of the greenhouse experiment showed that 5% application of ABC and CBC amendments resulted in root biomass of 2.12 and 2.38 g, respectively, as compared to 0.51 g in control treatment. Similar treatments resulted in shoot biomass of 9.70 and 9.93 g respectively, as compared to 7.37 g in control. Likewise, 5% application of CBC and ABC increase plant height from 15.71 to 30.94 cm in ABC and 33.23 cm in CBC. Overall, 5% application of coffee waste-derived biochars significantly reduced water evaporation and infiltration, while increasing soil water retention and maize plant height, root biomass, and shoot biomass. Therefore, spent coffee waste-derived biochar could effectively be employed to improve physical and hydrological properties of loamy sand soils for better crop productivity.

Indexed as

CharcoalSoilWaterZea maysCoffeaCoffeeSandbiocharCharcoalCoffeeSandSoilWaterArid regionsInfiltration and evaporationMaize growthWaste-derived biocharWater conservation

Identifiers

PMID39187560
PMCPMC11347622

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.