Abstract
Abstract The Ethiopian government has recently imported and distributed multi-nutrient fertilizers for farmers’ use without sufficient research findings. Hence, selecting the appropriate fertilizers based on the actual limiting plant nutrients is crucial for providing timely policy direction to import only fertilizers that could limit crop yield. A field study was carried out to identify the yield-limiting plant nutrients for wheat under irrigation at two farmer’s fields in the Woleh irrigation scheme of the Amhara region of Ethiopia in the 2022 irrigation season. A total of nine treatments, including control, NPSKZnB (all), NPSKZn (all-B), NPSKB (all-Zn), NPKZnB (all-S), NPSZnB (all-K), NKSZnB (all-P), PKSZnB (all-N), and RNP (all-KSZnB), were arranged in a randomized complete block design (RCRD) with three replications. The Kekeba wheat variety was used as a test crop. The collected grain and biomass yield data were analyzed using R software, following the procedure. The results showed that fertilizer application significantly affected wheat grain yield. The highest grain yield (4443.5 kg ha −1 ) was obtained from NPKZnB (All-S) treatment, though this was not statistically different from the yield achieved with the recommended NP treatment. While the lowest grain yield was obtained from the control and nitrogen omitted treatment. There was no significant difference between and among the treatments except control, all-N, and all-P. The grain yield was reduced by 3181.6 kg ha −1 when N was omitted and 1817.8 kg ha −1 when P was omitted over all-S (NPKZnB). This showed that nitrogen and phosphorous are yield-limiting plant nutrients for wheat under irrigation in the study area. Therefore, the government should give emphasis to nitrogen- and phosphorous-containing fertilizers to increase wheat yield.
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 9
Claim · model-written summary
Fertilizer application significantly affected wheat grain yield.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- fertilizer applicatione0
- Outcome
- wheat grain yielde0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fertilizer application significantly affected wheat grain yield”
Claim · model-written summary
NPKZnB without sulfur gave the highest grain yield, 4443.5 kg ha −1.
Not reportedTaxonComparator
Verbatim
e0“The highest grain yield (4443.5 kg ha −1 ) was obtained from NPKZnB (All-S) treatment”
Claim · model-written summary
The highest-yielding treatment did not differ significantly from recommended NP.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- recommended NP treatmente0
- Outcome
- yielde0
- Direction
- not statistically differente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this was not statistically different from the yield achieved with the recommended NP treatment”
t0“wheat”
Claim · model-written summary
The untreated control produced one of the lowest grain yields.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- controle0
- Outcome
- grain yielde0
- Direction
- loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the lowest grain yield was obtained from the control and nitrogen omitted treatment”
t0“wheat”
Claim · model-written summary
Nitrogen omission produced one of the lowest grain yields.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- nitrogen omitted treatmente0
- Outcome
- grain yielde0
- Direction
- loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the lowest grain yield was obtained from the control and nitrogen omitted treatment”
t0“wheat”
Claim · model-written summary
Nitrogen omission reduced grain yield by 3181.6 kg ha −1 relative to all-S.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- N was omittede0
- Outcome
- grain yielde0
- Direction
- reducede0
- Value
- 3181.6 kg ha −1e0
- Comparator
- all-S (NPKZnB)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain yield was reduced by 3181.6 kg ha −1 when N was omitted and 1817.8 kg ha −1 when P was omitted over all-S (NPKZnB)”
t0“wheat”
Claim · model-written summary
Phosphorus omission reduced grain yield by 1817.8 kg ha −1 relative to all-S.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- P was omittede0
- Outcome
- grain yielde0
- Direction
- reducede0
- Value
- 1817.8 kg ha −1e0
- Comparator
- all-S (NPKZnB)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain yield was reduced by 3181.6 kg ha −1 when N was omitted and 1817.8 kg ha −1 when P was omitted over all-S (NPKZnB)”
t0“wheat”
Claim · model-written summary
The authors conclude that nitrogen and phosphorus limit irrigated wheat yield in the study area.
- Taxon
- wheatTriticum aestivume0
- Outcome
- yield-limiting plant nutrientse0
- Qualifier
- under irrigation in the study areae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nitrogen and phosphorous are yield-limiting plant nutrients for wheat under irrigation in the study area”
Claim · model-written summary
The authors recommend nitrogen- and phosphorus-containing fertilizers to increase wheat yield.
- Taxon
- wheatTriticum aestivume0
- Outcome
- nitrogen- and phosphorous-containing fertilizers to increase wheat yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the government should give emphasis to nitrogen- and phosphorous-containing fertilizers to increase wheat yield”
The same questions in other papers
nanoparticle · yield · Triticum aestivum (wheat)Positive and negative results
17 papers in the same direction as this paper · 242 in the opposite direction
- positive
- positive
- positive
256 papers more in this group
See all 260 papers →nitrogen · yield · Triticum aestivum (wheat)Positive and negative results
1,736 papers in the same direction as this paper · 285 in the opposite direction · 39 reporting no difference from an alternative
This paper is about lacking the nutrient, so it counts the other way round here.
- positive
- positive
- positive
2,057 papers more in this group
See all 2,061 papers →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.