Abstract
Crop quality and nutrient uptake are considerably influenced by fertilizers inputs and their application rate. Biochar (BC) improves nitrogen uptake and crop productivity. However, its interaction with synthetic and organic fertilizers in calcareous soil is not fully recognized. Therefore, we inspected the role of biochar (0, 10, 20, and 30 t ha –1 ) in improving N uptake and quality of wheat in a calcareous soil under integrated N management (90, 120, and 150 kg N ha –1 ) applied each from urea, farmyard manure (FYM) and poultry manure (PM) along with control) in 2 years field experiments. Application of 20 t BC along with 150 kg N ha –1 as poultry manure considerably improved wheat grain protein content (14.57%), grain (62.9%), straw (28.7%), and biological (38.4%) yield, grain, straw, and total N concentration by 14.6, 19.2, and 15.6% and their uptake by 84.6, 48.8, and 72.1%, respectively, over absolute control when averaged across the years. However, their impact was more pronounced in the 2nd year (2016–2017) after application compared to the 1st year (2015–2016). Therefore, for immediate crop benefits, it is recommended to use 20 t BC ha –1 once in 50 years for enhancing the nitrogen use efficiency of fertilizers and crop yield.
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Claims 12
Claim · model-written summary
Biochar and poultry manure improved wheat grain protein content to 14.57%.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- 20 t BC along with 150 kg N ha –1 as poultry manuree0
- Outcome
- grain protein contente0
- Direction
- improvede0
- Value
- 14.57%e0
- Comparator
- absolute controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Application of 20 t BC along with 150 kg N ha –1 as poultry manure considerably improved wheat grain protein content (14.57%), grain (62.9%), straw (28.7%), and biological (38.4%) yield, grain, straw, and total N concentration by 14.6, 19.2, and 15.6% and their uptake by 84.6, 48.8, and 72.1%, respectively, over absolute control when averaged across the years”
Claim · model-written summary
The treatment improved grain yield by 62.9%.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- 20 t BC along with 150 kg N ha –1 as poultry manuree0
- Outcome
- graine0
- Direction
- improvede0
- Value
- 62.9%e0
- Comparator
- absolute controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Application of 20 t BC along with 150 kg N ha –1 as poultry manure considerably improved wheat grain protein content (14.57%), grain (62.9%), straw (28.7%), and biological (38.4%) yield, grain, straw, and total N concentration by 14.6, 19.2, and 15.6% and their uptake by 84.6, 48.8, and 72.1%, respectively, over absolute control when averaged across the years”
Claim · model-written summary
The treatment improved straw yield by 28.7%.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- 20 t BC along with 150 kg N ha –1 as poultry manuree0
- Outcome
- strawe0
- Direction
- improvede0
- Value
- 28.7%e0
- Comparator
- absolute controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Application of 20 t BC along with 150 kg N ha –1 as poultry manure considerably improved wheat grain protein content (14.57%), grain (62.9%), straw (28.7%), and biological (38.4%) yield, grain, straw, and total N concentration by 14.6, 19.2, and 15.6% and their uptake by 84.6, 48.8, and 72.1%, respectively, over absolute control when averaged across the years”
Claim · model-written summary
The treatment improved biological yield by 38.4%.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- 20 t BC along with 150 kg N ha –1 as poultry manuree0
- Outcome
- biologicale0
- Direction
- improvede0
- Value
- 38.4%e0
- Comparator
- absolute controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Application of 20 t BC along with 150 kg N ha –1 as poultry manure considerably improved wheat grain protein content (14.57%), grain (62.9%), straw (28.7%), and biological (38.4%) yield, grain, straw, and total N concentration by 14.6, 19.2, and 15.6% and their uptake by 84.6, 48.8, and 72.1%, respectively, over absolute control when averaged across the years”
Claim · model-written summary
The treatment improved grain N concentration by 14.6%.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- 20 t BC along with 150 kg N ha –1 as poultry manuree0
- Outcome
- grain, straw, and total N concentratione0
- Direction
- improvede0
- Value
- 14.6e0
- Comparator
- absolute controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Application of 20 t BC along with 150 kg N ha –1 as poultry manure considerably improved wheat grain protein content (14.57%), grain (62.9%), straw (28.7%), and biological (38.4%) yield, grain, straw, and total N concentration by 14.6, 19.2, and 15.6% and their uptake by 84.6, 48.8, and 72.1%, respectively, over absolute control when averaged across the years”
Claim · model-written summary
The treatment improved straw N concentration by 19.2%.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- 20 t BC along with 150 kg N ha –1 as poultry manuree0
- Outcome
- grain, straw, and total N concentratione0
- Direction
- improvede0
- Value
- 19.2e0
- Comparator
- absolute controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Application of 20 t BC along with 150 kg N ha –1 as poultry manure considerably improved wheat grain protein content (14.57%), grain (62.9%), straw (28.7%), and biological (38.4%) yield, grain, straw, and total N concentration by 14.6, 19.2, and 15.6% and their uptake by 84.6, 48.8, and 72.1%, respectively, over absolute control when averaged across the years”
Claim · model-written summary
The treatment improved total N concentration by 15.6%.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- 20 t BC along with 150 kg N ha –1 as poultry manuree0
- Outcome
- grain, straw, and total N concentratione0
- Direction
- improvede0
- Value
- 15.6%e0
- Comparator
- absolute controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Application of 20 t BC along with 150 kg N ha –1 as poultry manure considerably improved wheat grain protein content (14.57%), grain (62.9%), straw (28.7%), and biological (38.4%) yield, grain, straw, and total N concentration by 14.6, 19.2, and 15.6% and their uptake by 84.6, 48.8, and 72.1%, respectively, over absolute control when averaged across the years”
Claim · model-written summary
The treatment improved grain N uptake by 84.6%.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- 20 t BC along with 150 kg N ha –1 as poultry manuree0
- Outcome
- their uptakee0
- Direction
- improvede0
- Value
- 84.6e0
- Comparator
- absolute controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Application of 20 t BC along with 150 kg N ha –1 as poultry manure considerably improved wheat grain protein content (14.57%), grain (62.9%), straw (28.7%), and biological (38.4%) yield, grain, straw, and total N concentration by 14.6, 19.2, and 15.6% and their uptake by 84.6, 48.8, and 72.1%, respectively, over absolute control when averaged across the years”
Claim · model-written summary
The treatment improved straw N uptake by 48.8%.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- 20 t BC along with 150 kg N ha –1 as poultry manuree0
- Outcome
- their uptakee0
- Direction
- improvede0
- Value
- 48.8e0
- Comparator
- absolute controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Application of 20 t BC along with 150 kg N ha –1 as poultry manure considerably improved wheat grain protein content (14.57%), grain (62.9%), straw (28.7%), and biological (38.4%) yield, grain, straw, and total N concentration by 14.6, 19.2, and 15.6% and their uptake by 84.6, 48.8, and 72.1%, respectively, over absolute control when averaged across the years”
Claim · model-written summary
The treatment improved total N uptake by 72.1%.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- 20 t BC along with 150 kg N ha –1 as poultry manuree0
- Outcome
- their uptakee0
- Direction
- improvede0
- Value
- 72.1%e0
- Comparator
- absolute controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Application of 20 t BC along with 150 kg N ha –1 as poultry manure considerably improved wheat grain protein content (14.57%), grain (62.9%), straw (28.7%), and biological (38.4%) yield, grain, straw, and total N concentration by 14.6, 19.2, and 15.6% and their uptake by 84.6, 48.8, and 72.1%, respectively, over absolute control when averaged across the years”
Claim · model-written summary
The response was more pronounced in the second year than the first.
- Taxon
- Wheat
Triticum aestivumt0 - Outcome
- impacte0
- Direction
- more pronouncede0
- Comparator
- the 1st year (2015–2016)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“their impact was more pronounced in the 2nd year (2016–2017) after application compared to the 1st year (2015–2016)”
t0“Wheat”
Claim · model-written summary
The authors recommend 20 t BC ha –1 once in 50 years to enhance fertilizer nitrogen use efficiency and crop yield.
- Taxon
- Wheat
Triticum aestivumt0 - Outcome
- use 20 t BC ha –1 once in 50 yearse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“it is recommended to use 20 t BC ha –1 once in 50 years for enhancing the nitrogen use efficiency of fertilizers and crop yield”
t0“Wheat”
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See all 2,061 papers →8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.