Paper · 2013 · International Journal of Agriculture and Crop Sciences (IJACS)

Impact of crop density and soil fertilization on sugar beet

B. Jafarnia; Reza Ghorbani; A. Z. Feizabady; et al.

11
claims
21
verbatim quotes
12
citations
2
research areas
—
Not open access

Abstract

Sugar beet is an important industrial crop and the second highest source of sugar providing after sugar cane. Around 30% of the total annual sugar production in the world is from sugar beets. In order to evaluate the effect of plant density and nitrogen fertilization on sugar beets, two field experiments were conducted in a randomized complete block design with four replications in two different locations of Iran including Experimental Research fields in Agriculture and Natural Resources center, Mashhad, and agricultural research farm of sugar factory in Torbat-Jam, 2011. Studied factors consisted three crop densities (60,000, 90,000, and 120,000 plants per hectare), three nitrogen fertilizer levels (0%, 50%, and 100% requirement to nitrogen) and Two levels of biological fertilizers (Application of Nitroxin and without application biological fertilizer). Nitroxin is biologic fertilizer with Azosprolium bacteria and Nitrobacteria. Generally this study showed increment plant density from 60000 to 120000 plants per hectare generally decreased the impurities sodium and potassium in root pulp in both Torbat-jam and Mashhad locations. Also, utilizing bio-fertilizer; 50% reduction of nitrogen (100 kg nitrogen per hectare); and the density of 90,000 per hectare, had the desired quality of sugar beets with the minimum impurities (sodium, potassium, and alpha-amino nitrogen), and the maximum of pure and impure sugar yield and extractable sugar amount were obtained. By increasing nitrogen application up to 200 kg per hectare, the percentages of extractable sugar and pure sugar in root pulp were increased. As a conclusion, biological fertilizer application in sugar beet could increase qualitative characteristics of sugar beets root and reduced consumption of chemical nitrogen fertilizer in both locations.

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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 11

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Increasing plant density decreased sodium impurity in root pulp at both locations.

Organ / stage
root pulpe0
Treatment
increment plant density from 60000 to 120000 plants per hectaree0
Outcome
sodiume0
Direction
decreasede0
Setting
Torbat-jam and Mashhade0

Not reportedComparator

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

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“sugar beet”

✓ located verbatim in the source · title, characters 49–59 · show in text ↑
e0

“increment plant density from 60000 to 120000 plants per hectare generally decreased the impurities sodium and potassium in root pulp in both Torbat-jam and Mashhad locations.”

✓ located verbatim in the source · abstract, characters 972–1146 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Increasing plant density decreased potassium impurity in root pulp at both locations.

Organ / stage
root pulpe0
Treatment
increment plant density from 60000 to 120000 plants per hectaree0
Outcome
potassiume0
Direction
decreasede0
Setting
Torbat-jam and Mashhade0

Not reportedComparator

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

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“sugar beet”

✓ located verbatim in the source · title, characters 49–59 · show in text ↑
e0

“increment plant density from 60000 to 120000 plants per hectare generally decreased the impurities sodium and potassium in root pulp in both Torbat-jam and Mashhad locations.”

✓ located verbatim in the source · abstract, characters 972–1146 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The combined biofertilizer, reduced nitrogen and density treatment gave minimum sodium.

Treatment
utilizing bio-fertilizer; 50% reduction of nitrogen (100 kg nitrogen per hectare); and the density of 90,000 per hectaree0
Outcome
sodiume0
Direction
minimume0

Not reportedComparator

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

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“sugar beet”

✓ located verbatim in the source · title, characters 49–59 · show in text ↑
e0

“Also, utilizing bio-fertilizer; 50% reduction of nitrogen (100 kg nitrogen per hectare); and the density of 90,000 per hectare, had the desired quality of sugar beets with the minimum impurities (sodium, potassium, and alpha-amino nitrogen), and the maximum of pure and impure sugar yield and extractable sugar amount were obtained.”

✓ located verbatim in the source · abstract, characters 1147–1479 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The combined biofertilizer, reduced nitrogen and density treatment gave minimum potassium.

Treatment
utilizing bio-fertilizer; 50% reduction of nitrogen (100 kg nitrogen per hectare); and the density of 90,000 per hectaree0
Outcome
potassiume0
Direction
minimume0

Not reportedComparator

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

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“sugar beet”

✓ located verbatim in the source · title, characters 49–59 · show in text ↑
e0

“Also, utilizing bio-fertilizer; 50% reduction of nitrogen (100 kg nitrogen per hectare); and the density of 90,000 per hectare, had the desired quality of sugar beets with the minimum impurities (sodium, potassium, and alpha-amino nitrogen), and the maximum of pure and impure sugar yield and extractable sugar amount were obtained.”

✓ located verbatim in the source · abstract, characters 1147–1479 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The combined biofertilizer, reduced nitrogen and density treatment gave minimum alpha-amino nitrogen.

Treatment
utilizing bio-fertilizer; 50% reduction of nitrogen (100 kg nitrogen per hectare); and the density of 90,000 per hectaree0
Outcome
alpha-amino nitrogene0
Direction
minimume0

Not reportedComparator

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

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“sugar beet”

✓ located verbatim in the source · title, characters 49–59 · show in text ↑
e0

“Also, utilizing bio-fertilizer; 50% reduction of nitrogen (100 kg nitrogen per hectare); and the density of 90,000 per hectare, had the desired quality of sugar beets with the minimum impurities (sodium, potassium, and alpha-amino nitrogen), and the maximum of pure and impure sugar yield and extractable sugar amount were obtained.”

✓ located verbatim in the source · abstract, characters 1147–1479 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The combined biofertilizer, reduced nitrogen and density treatment gave maximum pure sugar yield.

Treatment
utilizing bio-fertilizer; 50% reduction of nitrogen (100 kg nitrogen per hectare); and the density of 90,000 per hectaree0
Outcome
pure sugar yielde0
Direction
maximume0

Not reportedComparator

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

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“sugar beet”

✓ located verbatim in the source · title, characters 49–59 · show in text ↑
e0

“Also, utilizing bio-fertilizer; 50% reduction of nitrogen (100 kg nitrogen per hectare); and the density of 90,000 per hectare, had the desired quality of sugar beets with the minimum impurities (sodium, potassium, and alpha-amino nitrogen), and the maximum of pure and impure sugar yield and extractable sugar amount were obtained.”

✓ located verbatim in the source · abstract, characters 1147–1479 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The combined biofertilizer, reduced nitrogen and density treatment gave maximum impure sugar yield.

Treatment
utilizing bio-fertilizer; 50% reduction of nitrogen (100 kg nitrogen per hectare); and the density of 90,000 per hectaree0
Outcome
impure sugar yielde0
Direction
maximume0

Not reportedComparator

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

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“sugar beet”

✓ located verbatim in the source · title, characters 49–59 · show in text ↑
e0

“Also, utilizing bio-fertilizer; 50% reduction of nitrogen (100 kg nitrogen per hectare); and the density of 90,000 per hectare, had the desired quality of sugar beets with the minimum impurities (sodium, potassium, and alpha-amino nitrogen), and the maximum of pure and impure sugar yield and extractable sugar amount were obtained.”

✓ located verbatim in the source · abstract, characters 1147–1479 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The combined biofertilizer, reduced nitrogen and density treatment gave maximum extractable sugar amount.

Treatment
utilizing bio-fertilizer; 50% reduction of nitrogen (100 kg nitrogen per hectare); and the density of 90,000 per hectaree0
Outcome
extractable sugar amounte0
Direction
maximume0

Not reportedComparator

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

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“sugar beet”

✓ located verbatim in the source · title, characters 49–59 · show in text ↑
e0

“Also, utilizing bio-fertilizer; 50% reduction of nitrogen (100 kg nitrogen per hectare); and the density of 90,000 per hectare, had the desired quality of sugar beets with the minimum impurities (sodium, potassium, and alpha-amino nitrogen), and the maximum of pure and impure sugar yield and extractable sugar amount were obtained.”

✓ located verbatim in the source · abstract, characters 1147–1479 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Increasing nitrogen application increased extractable sugar percentage in root pulp.

Organ / stage
root pulpe0
Treatment
increasing nitrogen application up to 200 kg per hectaree0
Outcome
extractable sugare0
Direction
increasede0

Not reportedComparator

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

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“sugar beet”

✓ located verbatim in the source · title, characters 49–59 · show in text ↑
e0

“By increasing nitrogen application up to 200 kg per hectare, the percentages of extractable sugar and pure sugar in root pulp were increased.”

✓ located verbatim in the source · abstract, characters 1480–1621 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Increasing nitrogen application increased pure sugar percentage in root pulp.

Organ / stage
root pulpe0
Treatment
increasing nitrogen application up to 200 kg per hectaree0
Outcome
pure sugare0
Direction
increasede0

Not reportedComparator

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

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“sugar beet”

✓ located verbatim in the source · title, characters 49–59 · show in text ↑
e0

“By increasing nitrogen application up to 200 kg per hectare, the percentages of extractable sugar and pure sugar in root pulp were increased.”

✓ located verbatim in the source · abstract, characters 1480–1621 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors conclude biological fertilizer can improve root quality and reduce chemical nitrogen fertilizer use.

Outcome
increase qualitative characteristics of sugar beets root and reduced consumption of chemical nitrogen fertilizere0

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

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“biological fertilizer application in sugar beet could increase qualitative characteristics of sugar beets root and reduced consumption of chemical nitrogen fertilizer in both locations.”

✓ located verbatim in the source · abstract, characters 1639–1824 · show in text ↑

nitrogen · quality: sugar starch · Beta vulgaris (beet)Results differ

103 papers: 66 positive, 37 negative or no effect

65 papers in the same direction as this paper · 36 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. negative
  3. no effect

99 papers more in this group

See all 103 papers →

density · nutrient: content · Beta vulgaris (beet)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. no effect
See all 2 papers →

inoculation · nutrient: content · Beta vulgaris (beet)Positive and negative results

7 papers: 6 positive, 1 negative or no effect

5 papers in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. no effect
  3. positive

3 papers more in this group

See all 7 papers →

inoculation · quality: sugar starch · Beta vulgaris (beet)Positive and negative results

15 papers: 13 positive, 2 negative or no effect

12 papers in the same direction as this paper · 2 in the opposite direction

  1. positive
  2. negative
  3. negative

11 papers more in this group

See all 15 papers →

nitrogen · nutrient: content · Beta vulgaris (beet)Positive and negative results

31 papers: 23 positive, 8 negative or no effect

22 papers in the same direction as this paper · 8 in the opposite direction

  1. no effect
  2. negative
  3. negative

27 papers more in this group

See all 31 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.