Effects of sowing rate and nitrogen rate on productivity of summer sowing Sudangrass

Abstract

The effect of sowing rate and nitrogen fertilizing rate on productivity of Sudangrass( Sorghum sudanense‘Xinsu No. 2') were studied in this research. The results showed that when the phosphate fertilizing rate was fixed,the highest plant height obtained at B1( sowing rate 22. 5 kg·ha- 1) and N3( nitrogen feritilizing rate 550 kg·ha- 1),the biggest stem diameter and maximum tillers number obtained at B1( sowing rate 22. 5 kg·ha- 1),the highest hay yield obtained at B2( sowing rate 45 kg·ha- 1) and N2( nitrogen fertilizing rate 415 kg·ha- 1),the total hay yield respectively reached 19 200. 0 and 19 744. 5 kg·ha- 1,the highest crude protein yield obtained at B3( sowing rate 67. 5 kg·ha- 1) and N2( nitrogen fertilizing rate 415 kg·ha- 1),the total crude protein yield respectively reached 1 607. 03 kg·ha- 1and 1 572. 00 kg·ha- 1. Taking the hay and crude protein yield into consideration,the best treatment combination was B3( sowing rate 67. 5 kg·ha- 1) + N2( nitrogen fertilizing rate 415 kg·ha- 1).

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Claims 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Plant height was highest at sowing rate B1 and nitrogen rate N3.

Taxon: SudangrassSorghum ×drummondiit0
Treatment: B1( sowing rate 22. 5 kg·ha- 1) and N3( nitrogen feritilizing rate 550 kg·ha- 1)e0
Outcome: plant heighte0
Direction: higheste0

Not reportedComparator

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

Sorghum x drummondii — *Sorghum* ×*drummondii* · TaxonUser:MarkusHagenlocher · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0
“the highest plant height obtained at B1( sowing rate 22. 5 kg·ha- 1) and N3( nitrogen feritilizing rate 550 kg·ha- 1)”
✓ located verbatim in the source · abstract, characters 220–337 · show in text ↑

t0
“Sudangrass”
✓ located verbatim in the source · title, characters 74–84 · show in text ↑

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Stem diameter and tiller number were greatest at B1.

Taxon: SudangrassSorghum ×drummondiit0
Treatment: B1( sowing rate 22. 5 kg·ha- 1)e0
Outcome: stem diameter and maximum tillers numbere0
Direction: maximume0

Not reportedComparator

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

Verbatim

e0
“the biggest stem diameter and maximum tillers number obtained at B1( sowing rate 22. 5 kg·ha- 1)”
✓ located verbatim in the source · abstract, characters 338–434 · show in text ↑

t0
“Sudangrass”
✓ located verbatim in the source · title, characters 74–84 · show in text ↑

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Hay yield was highest at sowing rate B2, reaching 19 200. 0 kg·ha- 1.

Taxon: SudangrassSorghum ×drummondiit0
Treatment: B2( sowing rate 45 kg·ha- 1)e0
Outcome: hay yielde0
Direction: higheste0
Value: 19 200. 0e0

Not reportedComparator

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

Verbatim

e0
“the highest hay yield obtained at B2( sowing rate 45 kg·ha- 1) and N2( nitrogen fertilizing rate 415 kg·ha- 1),the total hay yield respectively reached 19 200. 0 and 19 744. 5 kg·ha- 1”
✓ located verbatim in the source · abstract, characters 435–619 · show in text ↑

t0
“Sudangrass”
✓ located verbatim in the source · title, characters 74–84 · show in text ↑

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Hay yield was highest at nitrogen rate N2, reaching 19 744. 5 kg·ha- 1.

Taxon: SudangrassSorghum ×drummondiit0
Treatment: N2( nitrogen fertilizing rate 415 kg·ha- 1)e0
Outcome: hay yielde0
Direction: higheste0
Value: 19 744. 5 kg·ha- 1e0

Not reportedComparator

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

Verbatim

e0
“the highest hay yield obtained at B2( sowing rate 45 kg·ha- 1) and N2( nitrogen fertilizing rate 415 kg·ha- 1),the total hay yield respectively reached 19 200. 0 and 19 744. 5 kg·ha- 1”
✓ located verbatim in the source · abstract, characters 435–619 · show in text ↑

t0
“Sudangrass”
✓ located verbatim in the source · title, characters 74–84 · show in text ↑

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Crude protein yield was highest at sowing rate B3, reaching 1 607. 03 kg·ha- 1.

Taxon: SudangrassSorghum ×drummondiit0
Treatment: B3( sowing rate 67. 5 kg·ha- 1)e0
Outcome: crude protein yielde0
Direction: higheste0
Value: 1 607. 03 kg·ha- 1e0

Not reportedComparator

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

Verbatim

e0
“the highest crude protein yield obtained at B3( sowing rate 67. 5 kg·ha- 1) and N2( nitrogen fertilizing rate 415 kg·ha- 1),the total crude protein yield respectively reached 1 607. 03 kg·ha- 1and 1 572. 00 kg·ha- 1”
✓ located verbatim in the source · abstract, characters 620–835 · show in text ↑

t0
“Sudangrass”
✓ located verbatim in the source · title, characters 74–84 · show in text ↑

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Crude protein yield was highest at nitrogen rate N2, reaching 1 572. 00 kg·ha- 1.

Taxon: SudangrassSorghum ×drummondiit0
Treatment: N2( nitrogen fertilizing rate 415 kg·ha- 1)e0
Outcome: crude protein yielde0
Direction: higheste0
Value: 1 572. 00 kg·ha- 1e0

Not reportedComparator

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

Verbatim

e0
“the highest crude protein yield obtained at B3( sowing rate 67. 5 kg·ha- 1) and N2( nitrogen fertilizing rate 415 kg·ha- 1),the total crude protein yield respectively reached 1 607. 03 kg·ha- 1and 1 572. 00 kg·ha- 1”
✓ located verbatim in the source · abstract, characters 620–835 · show in text ↑

t0
“Sudangrass”
✓ located verbatim in the source · title, characters 74–84 · show in text ↑

Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Considering hay and crude protein yield, B3 plus N2 was the best treatment combination.

Taxon: SudangrassSorghum ×drummondiit0
Treatment: B3( sowing rate 67. 5 kg·ha- 1) + N2( nitrogen fertilizing rate 415 kg·ha- 1)e0
Outcome: best treatment combinatione0

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

Verbatim

e0
“Taking the hay and crude protein yield into consideration,the best treatment combination was B3( sowing rate 67. 5 kg·ha- 1) + N2( nitrogen fertilizing rate 415 kg·ha- 1)”
✓ located verbatim in the source · abstract, characters 837–1007 · show in text ↑

t0
“Sudangrass”
✓ located verbatim in the source · title, characters 74–84 · show in text ↑

density · yield · Sorghum x drummondii (Sudan grass)Positive and negative results

8 papers: 6 positive, 2 negative or no effect

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

4 papers more in this group

See all 8 papers →

nitrogen · growth · Sorghum x drummondii (Sudan grass)Positive and negative results

10 papers: 9 positive, 1 negative or no effect

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

no effect
No pre-sowing nitrogen produced 6·7 cm plants, similar to urea.
Effect of urea and ammonium sulphate applied before sowing on sudangrass seedlings · 1976 · compared with urea
Opposite directionAbout lacking this nutrient, so it counts the other way round
positive
Sudan grass plant height increased with increasing N rates to a maximum of 246 cm at the 105 kg N ha−1 rate.
Optimizing Productivity of Buffel and Sudan Grasses Using Optimal Nitrogen Fertilizer Application under Arid Conditions · 2023
Same direction
positive
Late cutting with 105 kg N/ha/cut yielded 1.911 shoots per plant.
Influence of Cutting Date and Nitrogen Fertilizer Levels on Growth, Forage Yield, and Quality of Sudan Grass in a Semiarid Environment · 2019
Same direction

6 papers more in this group

See all 10 papers →

fertilization · yield · Sorghum x drummondii (Sudan grass)Positive and negative results

31 papers: 29 positive, 2 negative or no effect

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

no effect
Nitrogen fertilizer did not increase Sudan grass yields with legume covercrops.
A lysimeter investigation of nitrogen gains and losses under various systems of covercropping and fertilization, and a discussion of error sources · 1949
Opposite direction
no effect
Chemical fertilizers had no significant effect on Sudan grass forage productivity compared with a control
Effect of chemical fertilizers on yield and nutritive value of intercropped Sudan grass (Sorghum Sudanense) and cowpea (Vigna unguiculata L. Walp) forages grown in an adverse environment of western Saudi Arabi · 2012 · compared with a control
Opposite direction
positive
Dry-matter yield increased by 11.1 to 18.6% over application of 100 kg N/ha through urea.
Yield and quality of multi-cut forage sorghum (Sorghum sudanense) as influenced by integrated nitrogen management · 2007 · compared with 100 kg N/ha through urea
Same direction

27 papers more in this group

See all 31 papers →

density · quality: protein · Sorghum x drummondii (Sudan grass)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

positive
Earlier sowing at 2.5-3.0 million seeds per hectare gave highest crude protein content.
Sudangrass productivity when cultivating for fodder in the conditions of the Cis-Ural steppe of the Bashkortostan Republic · 2021
Same direction

See all 2 papers →

fertilization · quality: protein · Sorghum x drummondii (Sudan grass)Results agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

positive
Application of 75 kg N through urea plus 25 kg N/ha through FYM gave significantly higher green-forage, dry-matter and crude-protein yields than other treatments.
Yield and quality of multi-cut forage sorghum (Sorghum sudanense) as influenced by integrated nitrogen management · 2007 · compared with other treatments
Same direction
positive
Higher nitrogen fertilization increased sudangrass protein digestibility.
Studies with Sudangrass. II. Nutritive Evaluation by In Vivo and In Vitro Methods¹ · 1964
Same direction
positive
Fertilization yielded 0,75 t/ha digestible protein.
ASSESSMENT OF THE BIOLOGICAL ACTIVITY OF THE SOIL UNDER SORGHUM X DRUMMONDII (STEUD.) MILLSP. & CHASE WHEN APPLYING MINERAL FERTILIZERS · 2024
Same direction

See all 4 papers →

density · growth · Sorghum x drummondii (Sudan grass)Results agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

See all 4 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.

Abstract

Claims 7

The same questions in other papers

density · yield · Sorghum x drummondii (Sudan grass)Positive and negative results

nitrogen · growth · Sorghum x drummondii (Sudan grass)Positive and negative results

fertilization · yield · Sorghum x drummondii (Sudan grass)Positive and negative results

density · quality: protein · Sorghum x drummondii (Sudan grass)Results agree

fertilization · quality: protein · Sorghum x drummondii (Sudan grass)Results agree

density · growth · Sorghum x drummondii (Sudan grass)Results agree