Abstract
Abstract Nutrient omission trials were conducted on farmers’ fields in 2020 and 2022. The experiment included nine treatments: three treatments with nitrogen (N), phosphorus (P), potassium (K), sulfur (S), zinc (Zn), and boron (B) as individual, blended, and compound fertilizer; four treatments with the omission of K, S, Zn, or B; NP‐only; and control without any nutrient. Treatments were arranged in a randomized complete block design with three replications under foot slope (FS), mid‐slope (MS), and hillslope (HS) positions. Results showed that soil properties and maize yield significantly varied among landscape positions, with substantial soil fertility and yield increasing trends from HS to FS position. The highest grain yield (6.18 t ha −1 ) was recorded at the FS position, with the respective yield increments of 14% and 16% compared to the MS and HS positions. Applying all nutrients in blended form resulted in the highest grain yield (6.52 t ha −1 ), but it was not significantly different from yields of compound and individual fertilizer forms. Applying all nutrients in blended form increased grain yield by 7.4% and 264.2% compared to the NP‐only and the control, respectively, indicating the non‐significant effects of K, S, Zn, and B on yield. Overall, N and P are the most yield‐limiting nutrients for maize production, and site‐specific NP fertilizer recommendations targeting landscape position are required to enhance nutrient use efficiency and sustainably intensify maize yield. Developing site‐specific fertilizer recommendations advisory will enhance nutrient use efficiency, increase and sustain yield, and benefit farmers while improving soil and environmental quality.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. 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 13
Claim · model-written summary
Soil properties varied significantly among landscape positions in the maize trials.
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“soil properties and maize yield significantly varied among landscape positions”
Claim · model-written summary
Maize yield varied significantly among landscape positions.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“soil properties and maize yield significantly varied among landscape positions”
Claim · model-written summary
Soil fertility and yield showed increasing trends from the hillslope to the foot slope position.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“substantial soil fertility and yield increasing trends from HS to FS position”
t0“maize”
Claim · model-written summary
The highest maize grain yield, 6.18 t ha −1, was recorded at the foot slope (FS) position.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The highest grain yield (6.18 t ha −1 ) was recorded at the FS position”
t0“maize”
Claim · model-written summary
Grain yield at the FS position was 14% higher than at the MS position.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“yield increments of 14% and 16% compared to the MS and HS positions”
t0“maize”
Claim · model-written summary
Grain yield at the FS position was 16% higher than at the HS position.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“yield increments of 14% and 16% compared to the MS and HS positions”
t0“maize”
Claim · model-written summary
Applying all nutrients in blended form gave the highest grain yield, 6.52 t ha −1.
- Treatment
- Applying all nutrients in blended forme1
- Outcome
- grain yielde1
- Direction
- higheste1
- Value
- 6.52 t ha −1e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Applying all nutrients in blended form resulted in the highest grain yield (6.52 t ha −1 )”
t0“maize”
Claim · model-written summary
The grain yield with all nutrients in blended form was not significantly different from yields of compound and individual fertilizer forms.
- Treatment
- Applying all nutrients in blended forme1
- Outcome
- grain yielde1
- Direction
- not significantly differente1
- Comparator
- compound and individual fertilizer formse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Applying all nutrients in blended form resulted in the highest grain yield (6.52 t ha −1 ), but it was not significantly different from yields of compound and individual fertilizer forms”
t0“maize”
Claim · model-written summary
Applying all nutrients in blended form increased grain yield by 7.4% compared with the NP-only treatment.
- Treatment
- Applying all nutrients in blended forme1
- Outcome
- grain yielde1
- Direction
- increasede1
- Value
- 7.4%e1
- Comparator
- NP‐onlye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Applying all nutrients in blended form increased grain yield by 7.4% and 264.2% compared to the NP‐only and the control”
t0“maize”
Claim · model-written summary
Applying all nutrients in blended form increased grain yield by 264.2% compared with the control without any nutrient.
- Treatment
- Applying all nutrients in blended forme1
- Outcome
- grain yielde1
- Direction
- increasede1
- Value
- 264.2%e1
- Comparator
- the controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Applying all nutrients in blended form increased grain yield by 7.4% and 264.2% compared to the NP‐only and the control”
t0“maize”
Claim · model-written summary
The effects of K, S, Zn and B on maize yield were not significant.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“indicating the non‐significant effects of K, S, Zn, and B on yield”
t0“maize”
Claim · model-written summary
N and P are the most yield-limiting nutrients for maize production.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“N and P are the most yield‐limiting nutrients for maize production”
Claim · model-written summary
Site-specific NP fertilizer recommendations targeting landscape position are required to enhance nutrient use efficiency and sustainably intensify maize yield.
- Outcome
- site‐specific NP fertilizer recommendationse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“site‐specific NP fertilizer recommendations targeting landscape position are required to enhance nutrient use efficiency and sustainably intensify maize yield”
The same questions in other papers
zinc atom · yield · Zea mays (maize)Results differ
49 papers in the same direction as this paper · 391 in the opposite direction
- positive
- no effect
- positive
437 papers more in this group
See all 441 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.