Abstract
Nutrients imbalance particularly nitrogen (N) and zinc (Zn) is a major constraint for sustainable cotton production. Thus, we hypothesized that the combined application of N and Zn may increase N and Zn availability and enhance cotton productivity due to the synergistic effect between these nutrients. Therefore, the present field study was carried out for two consecutive years to explore the interactive effects of different N rates (N0 = 0, N1 = 120, N2 = 160, and N3 = 200 kg ha−1) and Zn rates (Zn0 = 0, Zn1 = 5 and Zn2 = 10 kg ha−1) on soil available N and Zn, and growth and yield traits of the cotton crop. The results indicated a linear increase in the soil available N and Zn and all the studied traits of the cotton crop with the progressive increase in N and Zn rates until 160 kg ha−1 N and 10 kg ha−1 Zn. The cotton crop showed the maximum seed cotton yield (3337–3368 kg ha−1) and total dry matter (9916–9988 kg ha−1) with the simultaneous application of 160 kg ha−1 N and 10 kg ha−1 Zn, which was attributed to higher growth, morphophysiological and yield traits in this treatment during both years. The findings of the study suggest that the application of 160 kg ha−1 N in combination with 10 kg ha−1 Zn is the best fertilizer management for increasing N and Zn availability and achieving higher seed cotton yield of cotton crop.
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Claims 6
Claim · model-written summary
Soil available N and Zn increased linearly with progressive N and Zn rates up to 160 kg ha-1 N and 10 kg ha-1 Zn in cotton fields.
- Taxon
- cotton crop
Gossypium hirsutume1 - Treatment
- progressive increase in N and Zn rates until 160 kg ha−1 N and 10 kg ha−1 Zne1
- Outcome
- soil available N and Zne1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“a linear increase in the soil available N and Zn and all the studied traits of the cotton crop with the progressive increase in N and Zn rates until 160 kg ha−1 N and 10 kg ha−1 Zn”
Claim · model-written summary
All studied growth and yield traits of cotton increased linearly with progressive N and Zn rates up to 160 kg ha-1 N and 10 kg ha-1 Zn.
- Taxon
- cotton crop
Gossypium hirsutume1 - Treatment
- progressive increase in N and Zn rates until 160 kg ha−1 N and 10 kg ha−1 Zne1
- Outcome
- all the studied traitse1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“a linear increase in the soil available N and Zn and all the studied traits of the cotton crop with the progressive increase in N and Zn rates until 160 kg ha−1 N and 10 kg ha−1 Zn”
Claim · model-written summary
Cotton reached its maximum seed cotton yield of 3337-3368 kg ha-1 with 160 kg ha-1 N plus 10 kg ha-1 Zn applied together.
- Taxon
- cotton
Gossypium hirsutume1 - Treatment
- simultaneous application of 160 kg ha−1 N and 10 kg ha−1 Zne1
- Outcome
- seed cotton yielde1
- Direction
- maximume1
- Value
- 3337–3368 kg ha−1e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“The cotton crop showed the maximum seed cotton yield (3337–3368 kg ha−1) and total dry matter (9916–9988 kg ha−1) with the simultaneous application of 160 kg ha−1 N and 10 kg ha−1 Zn”
Claim · model-written summary
Cotton reached its maximum total dry matter of 9916-9988 kg ha-1 with 160 kg ha-1 N plus 10 kg ha-1 Zn applied together.
- Taxon
- cotton
Gossypium hirsutume1 - Treatment
- simultaneous application of 160 kg ha−1 N and 10 kg ha−1 Zne1
- Outcome
- total dry mattere1
- Direction
- maximume1
- Value
- 9916–9988 kg ha−1e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“The cotton crop showed the maximum seed cotton yield (3337–3368 kg ha−1) and total dry matter (9916–9988 kg ha−1) with the simultaneous application of 160 kg ha−1 N and 10 kg ha−1 Zn”
Claim · model-written summary
The authors attribute the highest yield and dry matter under combined 160 kg ha-1 N and 10 kg ha-1 Zn to higher growth, morphophysiological and yield traits in that treatment in both years.
- Treatment
- simultaneous application of 160 kg ha−1 N and 10 kg ha−1 Zne1
- Outcome
- higher growth, morphophysiological and yield traitse1
Not reportedTaxon
Verbatim
e1“with the simultaneous application of 160 kg ha−1 N and 10 kg ha−1 Zn, which was attributed to higher growth, morphophysiological and yield traits in this treatment during both years”
Claim · model-written summary
The authors conclude that 160 kg ha-1 N with 10 kg ha-1 Zn is the best fertilizer management for increasing N and Zn availability and seed cotton yield of cotton.
- Taxon
- cotton
Gossypium hirsutume1 - Treatment
- 160 kg ha−1 N in combination with 10 kg ha−1 Zne1
- Outcome
- best fertilizer managemente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“the application of 160 kg ha−1 N in combination with 10 kg ha−1 Zn is the best fertilizer management for increasing N and Zn availability and achieving higher seed cotton yield of cotton crop”
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