Abstract
Nitrate (NO₃-) leaching from alkaline coarse-textured agricultural soils is a major concern that reduces nitrogen use efficiency (NUE) and limits crop productivity. Application of biochar has been found to improve soil fertility through nutrient retention when used with nitrogen fertilizer, however, its efficacy in coarse-textured alkaline soil is insufficiently explored. A greenhouse pot experiment was carried out comprising completely randomized design (CRD) with five treatments and three replicates (15 pots) to investigate the effects of biochar applied with N doses on NO3- leaching, N uptake and wheat yield. The treatments consisted of T1 (Control), T2 (Nitrogen 75 kg ha-1), T3 (Nitrogen 150 kg ha-1), T4 (2% biochar + Nitrogen 75 kg ha-1), and T5 (2% biochar + Nitrogen 150 kg ha-1). Biochar application had significantly reduced NO3- leaching compared to no biochar with T4 and T5 showing the lowest levels of NO3- losses. All the biochar applied treatments produced high grain yield, N uptake, and improved NUE in terms of treatments with no biochar applied. The decrease in NO₃- leaching was coupled with increased N retention in the soil and enhanced plant growth parameters. This research indicates that 2% biochar with 150 kg N ha-1 is the most effective treatment to ensure maximum wheat production and reduces NO₃-- leaching in alkaline coarse-textured soils.
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Claims 7
Claim · model-written summary
Biochar reduced nitrate leaching relative to no biochar, with T4 and T5 lowest.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- Biochar applicatione0
- Outcome
- NO3- leachinge0
- Direction
- reducede0
- Comparator
- no biochare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Biochar application had significantly reduced NO3- leaching compared to no biochar with T4 and T5 showing the lowest levels of NO3- losses”
t0“wheat (Triticum aestivum L.)”
Claim · model-written summary
Biochar treatments increased wheat grain yield relative to treatments without biochar.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- biochar applied treatmentse0
- Outcome
- grain yielde0
- Direction
- highe0
- Comparator
- treatments with no biochar appliede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All the biochar applied treatments produced high grain yield, N uptake, and improved NUE in terms of treatments with no biochar applied”
t0“wheat (Triticum aestivum L.)”
Claim · model-written summary
Biochar treatments increased nitrogen uptake relative to treatments without biochar.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- biochar applied treatmentse0
- Outcome
- N uptakee0
- Direction
- highe0
- Comparator
- treatments with no biochar appliede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All the biochar applied treatments produced high grain yield, N uptake, and improved NUE in terms of treatments with no biochar applied”
t0“wheat (Triticum aestivum L.)”
Claim · model-written summary
Biochar treatments improved nitrogen use efficiency relative to no biochar.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- biochar applied treatmentse0
- Outcome
- NUEe0
- Direction
- improvede0
- Comparator
- treatments with no biochar appliede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All the biochar applied treatments produced high grain yield, N uptake, and improved NUE in terms of treatments with no biochar applied”
t0“wheat (Triticum aestivum L.)”
Claim · model-written summary
Reduced nitrate leaching coincided with increased soil nitrogen retention.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- N retention in the soile0
- Direction
- increasede0
- Qualifier
- decrease in NO₃- leachinge0
Not reportedMaterialGeneCompoundOrgan / stageInteractorTreatmentComparatorSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The decrease in NO₃- leaching was coupled with increased N retention in the soil”
t0“wheat (Triticum aestivum L.)”
Claim · model-written summary
Reduced nitrate leaching coincided with enhanced plant growth parameters.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- NO₃- leachinge0
- Outcome
- plant growth parameterse0
- Direction
- enhancede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The decrease in NO₃- leaching was coupled with increased N retention in the soil and enhanced plant growth parameters”
t0“wheat (Triticum aestivum L.)”
Claim · model-written summary
The authors identify 2% biochar with 150 kg N ha-1 as most effective for wheat production and nitrate reduction.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- 2% biochar with 150 kg N ha-1e0
- Outcome
- maximum wheat production and reduces NO₃-- leachinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“2% biochar with 150 kg N ha-1 is the most effective treatment to ensure maximum wheat production and reduces NO₃-- leaching”
t0“wheat (Triticum aestivum L.)”
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