Abstract
In order to study the effect of organic and chemical fertilizers on some morpho-physiological traits of potato (cv. Agria), an experiment was conducted based on randomized complete block design (RCBD) with three replications during 2013 in Ardebil region. The fertilizer treatments were included; control (without fertilizer), 100% chemical fertilizer (urea), farm manure, farm manure + 50% urea, Pars Humic Plus organic fertilizer, Pars Humic Plus + 50% urea, Bird Hume organic fertilizer and Bird Hume + 50% urea. Results indicated that farm manure + 50% urea was superior to other fertilizer treatments in terms of all the traits other than chlorophyll content and dry matter percentage. Humic Plus + 50% urea had the highest chlorophyll content (SPAD = 47.34) in the leaf as compared to other treatments; whereas, Bird Hume fertilizer treatment produced the highest dry matter % (27.45).The treatments of farm manure + 50% urea and 100% urea fertilizer indicated the highest tuber yield among the fertilizer treatments. Also the farm manure + 50% urea fertilizer treatment had the highest gross income among the treatments. By increasing the organic fertilizers in the cropping systems the problems of chemical fertilizers will be reduced that is in consistent with sustainable agriculture.
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Claims 7
Claim · model-written summary
Farm manure plus 50% urea was superior for the measured traits other than chlorophyll and dry matter percentage.
- Taxon
- potato
Solanum tuberosume1 - Treatment
- farm manure + 50% ureae0
- Outcome
- all the traits other than chlorophyll content and dry matter percentagee0
- Direction
- superiore0
- Comparator
- other fertilizer treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“farm manure + 50% urea was superior to other fertilizer treatments in terms of all the traits other than chlorophyll content and dry matter percentage.”
e1“potato (cv. Agria)”
Claim · model-written summary
Humic Plus plus 50% urea gave the highest leaf chlorophyll content, SPAD 47.34.
- Taxon
- potato
Solanum tuberosume1 - Organ / stage
- leafe0
- Treatment
- Humic Plus + 50% ureae0
- Outcome
- chlorophyll contente0
- Direction
- higheste0
- Value
- SPAD = 47.34e0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Humic Plus + 50% urea had the highest chlorophyll content (SPAD = 47.34) in the leaf as compared to other treatments”
e1“potato (cv. Agria)”
Claim · model-written summary
Bird Hume fertilizer gave the highest dry matter percentage, 27.45.
- Taxon
- potato
Solanum tuberosume1 - Treatment
- Bird Hume fertilizer treatmente0
- Outcome
- dry matter %e0
- Direction
- higheste0
- Value
- 27.45e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Bird Hume fertilizer treatment produced the highest dry matter % (27.45)”
e1“potato (cv. Agria)”
Claim · model-written summary
Farm manure plus 50% urea was among the treatments with the highest tuber yield.
- Taxon
- potato
Solanum tuberosume1 - Treatment
- farm manure + 50% ureae0
- Outcome
- tuber yielde0
- Direction
- higheste0
- Comparator
- fertilizer treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“farm manure + 50% urea and 100% urea fertilizer indicated the highest tuber yield among the fertilizer treatments”
e1“potato (cv. Agria)”
Claim · model-written summary
100% urea was among the treatments with the highest tuber yield.
- Taxon
- potato
Solanum tuberosume1 - Treatment
- 100% urea fertilizere0
- Outcome
- tuber yielde0
- Direction
- higheste0
- Comparator
- fertilizer treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“farm manure + 50% urea and 100% urea fertilizer indicated the highest tuber yield among the fertilizer treatments”
e1“potato (cv. Agria)”
Claim · model-written summary
Farm manure plus 50% urea gave the highest gross income.
- Taxon
- potato
Solanum tuberosume1 - Treatment
- farm manure + 50% urea fertilizer treatmente0
- Outcome
- gross incomee0
- Direction
- higheste0
- Comparator
- the treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“farm manure + 50% urea fertilizer treatment had the highest gross income among the treatments”
e1“potato (cv. Agria)”
Claim · model-written summary
The authors state that increasing organic fertilizers in cropping systems will reduce chemical fertilizer problems.
- Taxon
- potato
Solanum tuberosume1 - Treatment
- increasing the organic fertilizerse0
- Outcome
- problems of chemical fertilizers will be reducede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“By increasing the organic fertilizers in the cropping systems the problems of chemical fertilizers will be reduced”
e1“potato (cv. Agria)”
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