Paper · 2018 · Turkish Journal Of Field Crops

FEED VALUE OF MAIZE (Zea mays var. indentata (Sturtev.) L.H.Bailey) GRAIN UNDER DIFFERENT IRRIGATION LEVELS AND NITROGEN DOSES

Hasan KALE; Mahmut KAPLAN; İsmail ULGER; et al.

6
claims
21
verbatim quotes
14
citations
2
research areas
✓
Open access

Abstract

The aim of the study was to investigate effects of different irrigation levels and nitrogen doses to chemical composition, in vitro gas and methane production of maize kernel for animal feeding. Three different nitrogen doses such as 100, 200 and 300 kg ha-1 N and irrigation levels such as 50%, 75% and 100% of depleted water were applied. The study was carried out under split plot for randomized complete block experimental design with three replicates during 2013-2014 seasons and irrigation levels were allocated in to main plots while nitrogen doses in to sub plots. The two-year results of the study showed that crude protein, crude ash and crude oil ratios and gas and methane production, metabolic energy (ME) and organic matter digestibility (OMD) were positively affected by increased level of water levels and nitrogen doses while acid detergent fiber (ADF) and neutral detergent fiber (NDF) and dry matter contents were negatively affected. It is clear that increased level of water and nitrogen positively contributed to quality of maize kernel for animal production but more researches are needed to explain how increased level of water and nitrogen result in higher level of gas and methane production.

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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 6

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Higher irrigation levels and nitrogen doses increased crude protein, crude ash and crude oil ratios of maize kernel.

Taxon
maizeZea mayst0
Treatment
increased level of water levels and nitrogen dosese3
Outcome
crude protein, crude ash and crude oil ratiose1
Direction
increaseinferrede2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“MAIZE”

✓ located verbatim in the source · title, characters 14–19 · show in text ↑
e1

“crude protein, crude ash and crude oil ratios”

✓ located verbatim in the source · abstract, characters 619–664 · show in text ↑
e2

“positively affected”

✓ located verbatim in the source · abstract, characters 763–782 · show in text ↑
e3

“increased level of water levels and nitrogen doses”

✓ located verbatim in the source · abstract, characters 786–836 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Higher irrigation levels and nitrogen doses increased in vitro gas and methane production of maize kernel.

Taxon
maizeZea mayst0
Treatment
increased level of water levels and nitrogen dosese3
Outcome
gas and methane productione1
Direction
increaseinferrede2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“MAIZE”

✓ located verbatim in the source · title, characters 14–19 · show in text ↑
e1

“ratios and gas and methane production”

✓ located verbatim in the source · abstract, characters 658–695 · show in text ↑
e2

“positively affected”

✓ located verbatim in the source · abstract, characters 763–782 · show in text ↑
e3

“increased level of water levels and nitrogen doses”

✓ located verbatim in the source · abstract, characters 786–836 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Higher irrigation levels and nitrogen doses increased metabolic energy and organic matter digestibility of maize kernel.

Taxon
maizeZea mayst0
Treatment
increased level of water levels and nitrogen dosese3
Outcome
metabolic energy (ME) and organic matter digestibility (OMD)e1
Direction
increaseinferrede2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“MAIZE”

✓ located verbatim in the source · title, characters 14–19 · show in text ↑
e1

“metabolic energy (ME) and organic matter digestibility (OMD)”

✓ located verbatim in the source · abstract, characters 697–757 · show in text ↑
e2

“positively affected”

✓ located verbatim in the source · abstract, characters 763–782 · show in text ↑
e3

“increased level of water levels and nitrogen doses”

✓ located verbatim in the source · abstract, characters 786–836 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Higher irrigation levels and nitrogen doses decreased acid detergent fiber and neutral detergent fiber contents of maize kernel.

Taxon
maizeZea mayst0
Treatment
increased level of water levels and nitrogen dosese3
Outcome
acid detergent fiber (ADF) and neutral detergent fiber (NDF)e1
Direction
decreaseinferrede2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“MAIZE”

✓ located verbatim in the source · title, characters 14–19 · show in text ↑
e1

“acid detergent fiber (ADF) and neutral detergent fiber (NDF)”

✓ located verbatim in the source · abstract, characters 843–903 · show in text ↑
e2

“negatively affected”

✓ located verbatim in the source · abstract, characters 933–952 · show in text ↑
e3

“increased level of water levels and nitrogen doses”

✓ located verbatim in the source · abstract, characters 786–836 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Higher irrigation levels and nitrogen doses decreased dry matter content of maize kernel.

Taxon
maizeZea mayst0
Treatment
increased level of water levels and nitrogen dosese3
Outcome
dry matter contentse1
Direction
decreaseinferrede2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“MAIZE”

✓ located verbatim in the source · title, characters 14–19 · show in text ↑
e1

“dry matter contents”

✓ located verbatim in the source · abstract, characters 908–927 · show in text ↑
e2

“negatively affected”

✓ located verbatim in the source · abstract, characters 933–952 · show in text ↑
e3

“increased level of water levels and nitrogen doses”

✓ located verbatim in the source · abstract, characters 786–836 · show in text ↑
Intervention effectauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Increased water and nitrogen levels positively contributed to the quality of maize kernel for animal production.

Taxon
maizeZea mayse0
Treatment
increased level of water and nitrogene0
Outcome
quality of maize kernel for animal productione0
Direction
positively contributede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“increased level of water and nitrogen positively contributed to quality of maize kernel for animal production”

✓ located verbatim in the source · abstract, characters 971–1080 · show in text ↑

irrigation · quality: protein · Zea mays (maize)Results differ

39 papers: 25 positive, 14 negative or no effect

24 papers in the same direction as this paper · 14 in the opposite direction

  1. negative
  2. no effect
  3. no effect

35 papers more in this group

See all 39 papers →

irrigation · quality: grain · Zea mays (maize)Positive and negative results

21 papers: 12 positive, 9 negative or no effect

11 papers in the same direction as this paper · 9 in the opposite direction

  1. negative
  2. negative
  3. no effect

17 papers more in this group

See all 21 papers →

nitrogen · quality: general · Zea mays (maize)Positive and negative results

44 papers: 33 positive, 11 negative or no effect

32 papers in the same direction as this paper · 10 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. no effect

40 papers more in this group

See all 44 papers →

nitrogen · quality: grain · Zea mays (maize)Positive and negative results

72 papers: 59 positive, 13 negative or no effect

58 papers in the same direction as this paper · 11 in the opposite direction · 2 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. no effect

68 papers more in this group

See all 72 papers →

nitrogen · quality: protein · Zea mays (maize)Positive and negative results

181 papers: 164 positive, 17 negative or no effect

163 papers in the same direction as this paper · 14 in the opposite direction · 3 reporting no difference from an alternative

  1. positive
  2. no effect
  3. no effect

177 papers more in this group

See all 181 papers →

irrigation · growth · Zea mays (maize)Positive and negative results

289 papers: 208 positive, 81 negative or no effect

80 papers in the same direction as this paper · 208 in the opposite direction

  1. positive
  2. positive
  3. positive

285 papers more in this group

See all 289 papers →

nitrogen · growth · Zea mays (maize)Positive and negative results

748 papers: 619 positive, 129 negative or no effect

128 papers in the same direction as this paper · 619 in the opposite direction

  1. positive
  2. positive
  3. positive

744 papers more in this group

See all 748 papers →

irrigation · yield · Zea mays (maize)Positive and negative results

1,016 papers: 791 positive, 225 negative or no effect

790 papers in the same direction as this paper · 209 in the opposite direction · 16 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

1,012 papers more in this group

See all 1,016 papers →

8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.