Abstract
Abstract Low soil fertility, inappropriate fertilizer application, and low input use are prominent factors contributing to low agricultural productivity in Ethiopia, where soil fertility status varies significantly across the landscape. Applying the correct rate, type, timing, and placement of fertilizers is essential for maximizing agricultural benefits and ensuring sustainable productivity. Addressing these issues is critical for promoting sustainable agricultural practices and improving food security. Therefore, the objective of the experiment was to identify the major yield‐limiting soil nutrients for sorghum yield in northern Ethiopia. A randomized complete block design with three replications was used at each landscape positions. The nutrients evaluated in the study were nitrogen (N), phosphorus (P), sulfur (S), zinc (Zn), boron (B), and potassium (K). The treatment applied included control, recommended NP (RNP), NPSZnB, NPKSZnB, NPZnB, NPSB, NPSZn, 150% NPKSZnB, and 50% NPKSZnB. These treatments were implemented across each landscape position. The research findings indicated that the application of 150% All + K nutrients resulted in the highest grain and biomass yields across all landscape positions. When compared with the RNP treatment, there was no significant difference in yield at all slopes. Omitting S, Zn, B, and K did not significantly affect the grain and biomass yields, suggesting that these nutrients are not yield limiting for sorghum in the study area. These findings suggest that prioritizing N‐ and P‐containing nutrients is essential for maximizing sorghum yield, thus contributing to sustainable agricultural practices and improved food security in the region.
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Claims 8
Claim · model-written summary
The 150% All + K treatment gave the highest grain yield across landscape positions.
SorghumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of 150% All + K nutrients resulted in the highest grain and biomass yields across all landscape positions.”
t0“grain sorghum”
Claim · model-written summary
The 150% All + K treatment gave the highest biomass yield across landscape positions.
- Treatment
- 150% All + K nutrientse0
- Outcome
- biomass yieldse0
- Direction
- higheste0
- Setting
- all landscape positionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of 150% All + K nutrients resulted in the highest grain and biomass yields across all landscape positions.”
t0“grain sorghum”
Claim · model-written summary
Yield under 150% All + K did not significantly differ from recommended NP at any slope.
- Treatment
- 150% All + K nutrientse1
- Outcome
- yielde0
- Direction
- no significant differencee0
- Comparator
- RNP treatmente0
- Setting
- all slopese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When compared with the RNP treatment, there was no significant difference in yield at all slopes.”
e1“150% All + K nutrients”
t0“grain sorghum”
Claim · model-written summary
Omitting sulfur did not significantly affect grain and biomass yields.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Omitting S, Zn, B, and K did not significantly affect the grain and biomass yields”
t0“grain sorghum”
Claim · model-written summary
Omitting zinc did not significantly affect grain and biomass yields.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Omitting S, Zn, B, and K did not significantly affect the grain and biomass yields”
t0“grain sorghum”
Claim · model-written summary
Omitting boron did not significantly affect grain and biomass yields.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Omitting S, Zn, B, and K did not significantly affect the grain and biomass yields”
t0“grain sorghum”
Claim · model-written summary
Omitting potassium did not significantly affect grain and biomass yields.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Omitting S, Zn, B, and K did not significantly affect the grain and biomass yields”
t0“grain sorghum”
Claim · model-written summary
The authors recommend prioritizing nitrogen- and phosphorus-containing nutrients to maximize sorghum yield.
- Outcome
- prioritizing N‐ and P‐containing nutrientse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“prioritizing N‐ and P‐containing nutrients is essential for maximizing sorghum yield”
The same questions in other papers
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This paper is about lacking the nutrient, so it counts the other way round here.
- positive
- positive
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1 paper in the same direction as this paper · 2 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- positive
- positive
- no effect
potassium · yield · SorghumResults differ
16 papers in the same direction as this paper · 24 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- positive
- positive
- positive
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See all 41 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.