Abstract
Humic acid (HA) has been reported a promising natural resource showing persistent effects on plant growth promotion, nutrient uptake and soil nutrient status. A greenhouse experiment was conducted to determine the effects of soil and foliar applied HA on the changes in selected soil properties and growth/nutrient accumulation of wheat (Triticum aestivum L.). The experiment comprised of 05 levels of soil applied HA viz., 0, 50, 100, 150 and 200 mg kg -1 ; 02 levels of soil+foliar applied HA i.e., 0 and 100 mg kg -1 tested on two different soils i.e. loam and silt loam. Results indicated that application of HA increased plant growth in terms of shoot length (18%), root length (29%), shoot dry weight (76%), root dry weight (100%) and chlorophyll content (96%). Response of yield and yield components displayed a significant increase in 1000-grain weight (8–16%), biological yield (18–36%), dry matter yield (15–25%) and grain yield (19–58%). The relative increase in NPK uptake in plants grown under HA was 57, 96 and 62%, respectively over the control. HA improved soil nutrient status by increasing organic matter (9%), total N (30%), available P (166%) and available K (52%), indicating a substantial increase in soil nutrient status. The improvement in soil fertility and wheat productivity in response to humic acid observed in this study is critical in the degraded and eroded soils generally exist in the State of Azad Jammu and Kashmir and other parts of the world. The quality and productivity of these degraded and eroded soils may be upgraded by including HA in our agricultural cropping pattern/system.
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Claims 17
Claim · model-written summary
Humic acid increased wheat shoot length by 18%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat (Triticum aestivum L.)”
e1“application of HA increased plant growth in terms of shoot length (18%), root length (29%), shoot dry weight (76%), root dry weight (100%) and chlorophyll content (96%)”
e2“application of HA increased plant growth”
Claim · model-written summary
Humic acid increased wheat root length by 29%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat (Triticum aestivum L.)”
e1“application of HA increased plant growth in terms of shoot length (18%), root length (29%), shoot dry weight (76%), root dry weight (100%) and chlorophyll content (96%)”
e2“application of HA increased plant growth”
Claim · model-written summary
Humic acid increased wheat shoot dry weight by 76%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat (Triticum aestivum L.)”
e1“application of HA increased plant growth in terms of shoot length (18%), root length (29%), shoot dry weight (76%), root dry weight (100%) and chlorophyll content (96%)”
e2“application of HA increased plant growth”
Claim · model-written summary
Humic acid increased wheat root dry weight by 100%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat (Triticum aestivum L.)”
e1“application of HA increased plant growth in terms of shoot length (18%), root length (29%), shoot dry weight (76%), root dry weight (100%) and chlorophyll content (96%)”
e2“application of HA increased plant growth”
Claim · model-written summary
Humic acid increased wheat chlorophyll content by 96%.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- HAe2
- Outcome
- chlorophyll contente1
- Direction
- increasede1
- Value
- 96%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat (Triticum aestivum L.)”
e1“application of HA increased plant growth in terms of shoot length (18%), root length (29%), shoot dry weight (76%), root dry weight (100%) and chlorophyll content (96%)”
e2“application of HA increased plant growth”
Claim · model-written summary
Humic acid increased wheat 1000-grain weight by 8–16%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat (Triticum aestivum L.)”
e1“a significant increase in 1000-grain weight (8–16%), biological yield (18–36%), dry matter yield (15–25%) and grain yield (19–58%)”
e2“application of HA increased plant growth”
Claim · model-written summary
Humic acid increased wheat biological yield by 18–36%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat (Triticum aestivum L.)”
e1“a significant increase in 1000-grain weight (8–16%), biological yield (18–36%), dry matter yield (15–25%) and grain yield (19–58%)”
e2“application of HA increased plant growth”
Claim · model-written summary
Humic acid increased wheat dry matter yield by 15–25%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat (Triticum aestivum L.)”
e1“a significant increase in 1000-grain weight (8–16%), biological yield (18–36%), dry matter yield (15–25%) and grain yield (19–58%)”
e2“application of HA increased plant growth”
Claim · model-written summary
Humic acid increased wheat grain yield by 19–58%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat (Triticum aestivum L.)”
e1“a significant increase in 1000-grain weight (8–16%), biological yield (18–36%), dry matter yield (15–25%) and grain yield (19–58%)”
e2“application of HA increased plant growth”
Claim · model-written summary
Humic acid increased wheat N by 57 over control.
- Taxon
- wheatTriticum aestivume0
- Treatment
- HAe1
- Outcome
- NPK uptakee1
- Direction
- increasee1
- Value
- 57e1
- Qualifier
- Ne1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat (Triticum aestivum L.)”
e1“The relative increase in NPK uptake in plants grown under HA was 57, 96 and 62%, respectively over the control”
Claim · model-written summary
Humic acid increased wheat P by 96 over control.
- Taxon
- wheatTriticum aestivume0
- Treatment
- HAe1
- Outcome
- NPK uptakee1
- Direction
- increasee1
- Value
- 96e1
- Qualifier
- Pe1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat (Triticum aestivum L.)”
e1“The relative increase in NPK uptake in plants grown under HA was 57, 96 and 62%, respectively over the control”
Claim · model-written summary
Humic acid increased wheat K by 62% over control.
- Taxon
- wheatTriticum aestivume0
- Treatment
- HAe1
- Outcome
- NPK uptakee1
- Direction
- increasee1
- Value
- 62%e1
- Qualifier
- Ke1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat (Triticum aestivum L.)”
e1“The relative increase in NPK uptake in plants grown under HA was 57, 96 and 62%, respectively over the control”
Claim · model-written summary
Humic acid increased soil organic matter by 9%.
Not reportedTaxonComparator
Verbatim
e0“HA improved soil nutrient status by increasing organic matter (9%), total N (30%), available P (166%) and available K (52%)”
Claim · model-written summary
Humic acid increased soil total N by 30%.
Not reportedTaxonComparator
Verbatim
e0“HA improved soil nutrient status by increasing organic matter (9%), total N (30%), available P (166%) and available K (52%)”
Claim · model-written summary
Humic acid increased soil available P by 166%.
Not reportedTaxonComparator
Verbatim
e0“HA improved soil nutrient status by increasing organic matter (9%), total N (30%), available P (166%) and available K (52%)”
Claim · model-written summary
Humic acid increased soil available K by 52%.
Not reportedTaxonComparator
Verbatim
e0“HA improved soil nutrient status by increasing organic matter (9%), total N (30%), available P (166%) and available K (52%)”
Claim · model-written summary
The authors recommend humic acid in cropping systems for degraded soils.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- HAe0
- Outcome
- quality and productivity of these degraded and eroded soils may be upgradede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The quality and productivity of these degraded and eroded soils may be upgraded by including HA in our agricultural cropping pattern/system”
t0“wheat (Triticum aestivum L.)”
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