Abstract
In a field experiment on Typic Ustochrept, the individual effects of S (0, 15, 30 & 45 kg S ha−1) and Zn (0, 2.5, 5 & 10 kg Zn ha−1) were studied on maize for yield, quality and nutrient uptake by maize (Zea mays L). Application of S up to 30 kg ha−1 enhanced the average grain yield of maize by 22 per cent over control. The application of Zn up to 5 kg ha−1 increased the maize grain yield by 19 per cent over control. On fitting the average grain yield data of two years into quadratic equation, the optimum dose of S for maize was found to be 34.3 kg ha−1 for the maximum grain yield of 29.7 q ha−1. Similarly, the optimum dose for zinc was found to be 7.1 kg ha−1 giving maximum grain yield of 29.8 q ha−1. Similar trend in yield response of stover was also recorded. Total S uptake progressively increased from 6.13 to 9.19 kg ha−1 with the increase of S levels. The uptake of Zn also increased with the levels of Zn. The uptake of N, P and K increased up to 30 kg S and 5 kg Zn ha−1 level. Protein content increased significantly with the increase of S and Zn over control. Tryptophan and lysine contents were found to increase with increased levels of Zn, while adverse effect was noted with increased levels of S.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 11
Claim · model-written summary
Sulfur up to 30 kg ha−1 raised maize grain yield by 22 per cent over control.
- Treatment
- S up to 30 kg ha−1e0
- Outcome
- average grain yield of maizee0
- Direction
- enhancede0
- Value
- 22 per cente0
- Comparator
- controle0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of S up to 30 kg ha−1 enhanced the average grain yield of maize by 22 per cent over control.”
Claim · model-written summary
Zinc up to 5 kg ha−1 raised maize grain yield by 19 per cent over control.
- Treatment
- Zn up to 5 kg ha−1e0
- Outcome
- maize grain yielde0
- Direction
- increasede0
- Value
- 19 per cente0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of Zn up to 5 kg ha−1 increased the maize grain yield by 19 per cent over control.”
Claim · model-written summary
A fitted optimum S dose of 34.3 kg ha−1 gave maximum grain yield of 29.7 q ha−1.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the optimum dose of S for maize was found to be 34.3 kg ha−1 for the maximum grain yield of 29.7 q ha−1”
Claim · model-written summary
A fitted optimum zinc dose of 7.1 kg ha−1 gave maximum grain yield of 29.8 q ha−1.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the optimum dose for zinc was found to be 7.1 kg ha−1 giving maximum grain yield of 29.8 q ha−1”
t0“maize”
Claim · model-written summary
Stover yield followed a similar response trend.
- Outcome
- yield response of stovere0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Similar trend in yield response of stover was also recorded.”
t0“maize”
Claim · model-written summary
Total S uptake rose from 6.13 to 9.19 kg ha−1 as S level increased.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total S uptake progressively increased from 6.13 to 9.19 kg ha−1 with the increase of S levels.”
t0“maize”
Claim · model-written summary
Zn uptake rose with Zn levels.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The uptake of Zn also increased with the levels of Zn.”
t0“maize”
Claim · model-written summary
N, P and K uptake increased through 30 kg S and 5 kg Zn ha−1.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The uptake of N, P and K increased up to 30 kg S and 5 kg Zn ha−1 level.”
t0“maize”
Claim · model-written summary
Protein content significantly increased with S and Zn over control.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Protein content increased significantly with the increase of S and Zn over control.”
t0“maize”
Claim · model-written summary
Tryptophan and lysine contents rose with increased Zn.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tryptophan and lysine contents were found to increase with increased levels of Zn”
t0“maize”
Claim · model-written summary
Increased S adversely affected tryptophan and lysine contents.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tryptophan and lysine contents were found to increase with increased levels of Zn, while adverse effect was noted with increased levels of S.”
t0“maize”
The same questions in other papers
zinc atom · quality: protein · Zea mays (maize)Results differ
36 papers in the same direction as this paper · 5 in the opposite direction
- no effect
- negative
- no effect
38 papers more in this group
See all 42 papers →zinc atom · nutrient: content · Zea mays (maize)Results differ
198 papers in the same direction as this paper · 33 in the opposite direction · 3 reporting no difference from an alternative
- positive
- positive
- no effect
231 papers more in this group
See all 235 papers →zinc atom · yield · Zea mays (maize)Results differ
390 papers in the same direction as this paper · 47 in the opposite direction · 3 reporting no difference from an alternative
- no effect
- positive
- positive
437 papers more in this group
See all 441 papers →zinc atom · molecular: metabolites · Zea mays (maize)Positive and negative results
35 papers in the same direction as this paper · 8 in the opposite direction
- positive
- negative
- negative
40 papers more in this group
See all 44 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.