Abstract
Abstract Background Farmers in marginalised areas across Africa are mainly resource poor and have limited capacity to procure enough inorganic fertilisers. This contributed immensely towards declining crop productivity causing food insecurity. Soil moisture stress is another key factor which has led to a decline in crop yields across semi‐arid areas. This experiment determines the effects of field edge rainwater harvesting and NPK fertiliser microdosing on sorghum grain yields and agronomic nutrient use efficiency of two sorghum varieties (Macia and SV1). Rainwater harvesting techniques was the main plot factor with three levels (tied contour, infiltration pits and standard contour), sorghum variety was used as subplot factor with two levels (Macia and SV1) and NPK fertiliser as sub‐sub plot factor with five levels (0, 25, 50, 100 and 150 kg ha −1 ) with all treatments replicated three times. A randomised complete block design arranged in split‐plot was used. Results Phosphorous was significantly increased from 3.32 to 3.52 mg kg −1 with no significant ( p > 0.05) increase in total nitrogen and soil organic carbon. Sorghum grain yields were statistically ( p < 0.05) influenced by main treatment factors. Tied contour had considerably higher grain yield (861 kg ha −1 ) than infiltration pits and standard contours. Highest grain yield of 909 kg ha −1 was observed from plots applied 150 kg ha −1 NPK fertiliser. Macia variety performed significantly ( p < 0.05) higher than SV1. Grain yields show significant ( p < 0.05) increase with increasing fertiliser levels. Interaction of tied contour + Macia+ 150 kg ha −1 NPK fertiliser had significant grain yields (1150 kg ha −1 ) compared to other treatments. Treatments applied NPK fertiliser show significant differences ( p < 0.05) than unfertilised plots. Agronomic nutrient use efficiencies were significantly higher ( p < 0.05) from all treatments applied 25 kg ha −1 NPK fertiliser. Sorghum variety Macia had better nutrient use efficiency than SV1 in 2017/18 and 2018/19 seasons except during 2019/20 where results show insignificant differences. Conclusion It can be concluded that farmers adopt the use of tied contour and Macia variety using 150 kg ha −1 to achieved higher yields. Combining rainwater harvesting method of tied contour and mineral fertiliser can increase sorghum grain yields in dry regions.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 12
Claim · model-written summary
Soil phosphorus increased from 3.32 to 3.52 mg kg −1.
- Taxon
- Sorghum bicolor (L.)
Sorghum bicolort0 - Outcome
- Phosphorouse0
- Direction
- increasede0
- Value
- 3.32 to 3.52 mg kg −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorous was significantly increased from 3.32 to 3.52 mg kg −1”
t0“Sorghum bicolor (L.)”
Claim · model-written summary
Total nitrogen and soil organic carbon did not increase significantly.
- Taxon
- Sorghum bicolor (L.)Sorghum bicolort0
- Outcome
- total nitrogen and soil organic carbone0
- Direction
- no significant ( p > 0.05) increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no significant ( p > 0.05) increase in total nitrogen and soil organic carbon”
t0“Sorghum bicolor (L.)”
Claim · model-written summary
Tied contour produced 861 kg ha −1 grain yield, higher than infiltration pits and standard contours.
- Taxon
- Sorghum bicolor (L.)Sorghum bicolort0
- Treatment
- Tied contoure0
- Outcome
- grain yielde0
- Direction
- highere0
- Value
- 861 kg ha −1e0
- Comparator
- infiltration pits and standard contourse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tied contour had considerably higher grain yield (861 kg ha −1 ) than infiltration pits and standard contours”
t0“Sorghum bicolor (L.)”
Claim · model-written summary
The highest grain yield, 909 kg ha −1, occurred with 150 kg ha −1 NPK fertiliser.
- Taxon
- Sorghum bicolor (L.)Sorghum bicolort0
- Treatment
- 150 kg ha −1 NPK fertilisere0
- Outcome
- grain yielde0
- Direction
- Higheste0
- Value
- 909 kg ha −1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Highest grain yield of 909 kg ha −1 was observed from plots applied 150 kg ha −1 NPK fertiliser”
t0“Sorghum bicolor (L.)”
Claim · model-written summary
Macia performed significantly better than SV1.
- Taxon
- Sorghum bicolor (L.)Sorghum bicolort0
- Material
- Maciae0
- Treatment
- Macia varietye0
- Outcome
- performede0
- Direction
- highere0
- Comparator
- SV1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Macia variety performed significantly ( p < 0.05) higher than SV1”
t0“Sorghum bicolor (L.)”
Claim · model-written summary
Grain yield increased significantly as fertiliser level increased.
- Taxon
- Sorghum bicolor (L.)Sorghum bicolort0
- Treatment
- fertiliser levelse0
- Outcome
- Grain yieldse0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain yields show significant ( p < 0.05) increase with increasing fertiliser levels”
t0“Sorghum bicolor (L.)”
Claim · model-written summary
Tied contour with Macia and 150 kg ha −1 NPK yielded 1150 kg ha −1, significantly more than other treatments.
- Taxon
- Sorghum bicolor (L.)Sorghum bicolort0
- Material
- Maciae0
- Treatment
- tied contour + Macia+ 150 kg ha −1 NPK fertilisere0
- Outcome
- grain yieldse0
- Value
- 1150 kg ha −1e0
- Comparator
- other treatmentse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Interaction of tied contour + Macia+ 150 kg ha −1 NPK fertiliser had significant grain yields (1150 kg ha −1 ) compared to other treatments”
t0“Sorghum bicolor (L.)”
Claim · model-written summary
Plots given NPK differed significantly from unfertilised plots.
- Taxon
- Sorghum bicolor (L.)Sorghum bicolort0
- Treatment
- NPK fertilisere0
- Outcome
- significant differencese0
- Comparator
- unfertilised plotse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatments applied NPK fertiliser show significant differences ( p < 0.05) than unfertilised plots”
t0“Sorghum bicolor (L.)”
Claim · model-written summary
Nutrient use efficiency was significantly higher at 25 kg ha −1 NPK.
- Taxon
- Sorghum bicolor (L.)Sorghum bicolort0
- Treatment
- 25 kg ha −1 NPK fertilisere0
- Outcome
- Agronomic nutrient use efficienciese0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Agronomic nutrient use efficiencies were significantly higher ( p < 0.05) from all treatments applied 25 kg ha −1 NPK fertiliser”
t0“Sorghum bicolor (L.)”
Claim · model-written summary
Macia had better nutrient use efficiency than SV1 in 2017/18 and 2018/19.
- Taxon
- Sorghum bicolor (L.)Sorghum bicolort0
- Material
- Maciae0
- Outcome
- nutrient use efficiencye0
- Direction
- bettere0
- Qualifier
- 2017/18 and 2018/19 seasonse0
- Comparator
- SV1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Macia had better nutrient use efficiency than SV1 in 2017/18 and 2018/19 seasons”
t0“Sorghum bicolor (L.)”
Claim · model-written summary
Macia and SV1 showed no significant nutrient use efficiency difference in 2019/20.
- Taxon
- Sorghum bicolor (L.)Sorghum bicolort0
- Material
- Maciae1
- Outcome
- nutrient use efficiencye1
- Direction
- insignificant differencese0
- Qualifier
- 2019/20e0
- Comparator
- SV1e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“except during 2019/20 where results show insignificant differences”
e1“Macia had better nutrient use efficiency than SV1 in 2017/18 and 2018/19 seasons”
t0“Sorghum bicolor (L.)”
Claim · model-written summary
The authors recommend tied contour with Macia and 150 kg ha −1 fertiliser for higher yields.
- Taxon
- Sorghum bicolor (L.)Sorghum bicolort0
- Treatment
- tied contour and Macia variety using 150 kg ha −1e0
- Outcome
- farmers adopt the use of tied contour and Macia variety using 150 kg ha −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“farmers adopt the use of tied contour and Macia variety using 150 kg ha −1 to achieved higher yields”
t0“Sorghum bicolor (L.)”
The same questions in other papers
fertilization · yield · Sorghum bicolor (sorghum)Results differ
79 papers in the same direction as this paper · 12 in the opposite direction
- no effect
- no effect
- no effect
88 papers more in this group
See all 92 papers →fertilization · nutrient: efficiency · Sorghum bicolor (sorghum)Results agree
1 paper in the same direction as this paper
- positive
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.