Paper · 2018 · Journal of Applied and Natural Science

Effect of nutrient levels and schedule of nutrient application on the grain quality of upland rice intercropped in coconut

Sheeja K Raj; B.M. Suman; K. Prathapan

9
claims
18
verbatim quotes
0
citations
2
research areas
✓
Open access · cc-by-nc

Abstract

Field experiment was conducted at Coconut Research Balaramapuram, during Kharif 2017 to study the effect of nutrient levels and schedule of application on the quality parameters of upland rice intercropped in coconut. The experiment was conducted in randomized block design (RBD) with four different nutrient levels and four different schedules of nutrient application. Quality parameters like crude protein and starch content were significantly influenced by nutrient levels. The crude protein content was found to increase with increase in N level, however starch content was found to increase up to 70 kg N and 35 kg K ha-1 and after that a decline in trend was observed. The highest crude protein content (8.38 per cent) was recorded with highest nutrient level, NPK @ 120:30:60 kg ha-1. However, lower nutrient level, NPK @ 70:30:35 kg ha-1 recorded higher starch content (85.03 per cent). Among the schedule of nutrient application, N applied in three equal splits (15 days after sowing (DAS), active tillering and panicle initiation stage), P as basal and K in two equal splits (15 DAS and panicle initiation stage) along with foliar application of 0.2 per cent zinc sulphate and 0.04 per cent sodium borate at 45 DAS recorded the highest crude protein (7.50 per cent) and starch content (84.17 per cent). The study clearly indicated that the increased level of N and K increased the protein content due to the active role of N and K in protein synthesis. However, high rate of N application decreased the starch content. In addition to the application of NPK, foliar nutrition of zinc sulphate and sodium borate at 45 DAS considerably improved the quality of grain by increasing the starch and protein content.

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Claims 9

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Crude protein content increased with increasing nitrogen level in upland rice grain.

Taxon
upland riceOryza sativat0
Treatment
N levele0
Outcome
crude protein contente0
Direction
increasee0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Quality parameters like crude protein and starch content were significantly influenced by nutrient levels. The crude protein content was found to increase with increase in N level”

✓ located verbatim in the source · abstract, characters 370–549 · show in text ↑
t0

“upland rice”

✓ located verbatim in the source · title, characters 87–98 · show in text ↑
Intervention effectobservedoriginal resultmixedsignificant (as stated)measured

Claim · model-written summary

Starch content increased up to 70 kg N and 35 kg K ha-1 and then declined.

Taxon
upland riceOryza sativat0
Treatment
70 kg N and 35 kg K ha-1e0
Outcome
starch contente0
Direction
increasee0
Qualifier
after that a decline in trende0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“starch content was found to increase up to 70 kg N and 35 kg K ha-1 and after that a decline in trend was observed”

✓ located verbatim in the source · abstract, characters 559–673 · show in text ↑
t0

“upland rice”

✓ located verbatim in the source · title, characters 87–98 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The highest nutrient level produced the highest crude protein content, 8.38 per cent.

Taxon
upland riceOryza sativat0
Treatment
NPK @ 120:30:60 kg ha-1e0
Outcome
crude protein contente0
Direction
higheste0
Value
8.38 per cente0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“The highest crude protein content (8.38 per cent) was recorded with highest nutrient level, NPK @ 120:30:60 kg ha-1.”

✓ located verbatim in the source · abstract, characters 675–791 · show in text ↑
t0

“upland rice”

✓ located verbatim in the source · title, characters 87–98 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The lower nutrient level yielded 85.03 per cent starch content.

Taxon
upland riceOryza sativat0
Treatment
NPK @ 70:30:35 kg ha-1e0
Outcome
starch contente0
Direction
highere0
Value
85.03 per cente0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“lower nutrient level, NPK @ 70:30:35 kg ha-1 recorded higher starch content (85.03 per cent)”

✓ located verbatim in the source · abstract, characters 801–893 · show in text ↑
t0

“upland rice”

✓ located verbatim in the source · title, characters 87–98 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The specified split nutrient schedule with foliar zinc sulphate and sodium borate gave the highest crude protein content, 7.50 per cent.

Taxon
upland riceOryza sativat0
Treatment
N applied in three equal splits (15 days after sowing (DAS), active tillering and panicle initiation stage), P as basal and K in two equal splits (15 DAS and panicle initiation stage) along with foliar application of 0.2 per cent zinc sulphate and 0.04 per cent sodium borate at 45 DASe0
Outcome
crude proteine0
Direction
higheste0
Value
7.50 per cente0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“N applied in three equal splits (15 days after sowing (DAS), active tillering and panicle initiation stage), P as basal and K in two equal splits (15 DAS and panicle initiation stage) along with foliar application of 0.2 per cent zinc sulphate and 0.04 per cent sodium borate at 45 DAS recorded the highest crude protein (7.50 per cent) and starch content (84.17 per cent)”

✓ located verbatim in the source · abstract, characters 939–1311 · show in text ↑
t0

“upland rice”

✓ located verbatim in the source · title, characters 87–98 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The specified split nutrient schedule with foliar zinc sulphate and sodium borate gave 84.17 per cent starch content.

Taxon
upland riceOryza sativat0
Treatment
foliar application of 0.2 per cent zinc sulphate and 0.04 per cent sodium borate at 45 DASe0
Outcome
starch contente0
Direction
higheste0
Value
84.17 per cente0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“N applied in three equal splits (15 days after sowing (DAS), active tillering and panicle initiation stage), P as basal and K in two equal splits (15 DAS and panicle initiation stage) along with foliar application of 0.2 per cent zinc sulphate and 0.04 per cent sodium borate at 45 DAS recorded the highest crude protein (7.50 per cent) and starch content (84.17 per cent)”

✓ located verbatim in the source · abstract, characters 939–1311 · show in text ↑
t0

“upland rice”

✓ located verbatim in the source · title, characters 87–98 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors attributed increased protein content with higher nitrogen and potassium to their role in protein synthesis.

Taxon
upland riceOryza sativat0
Treatment
increased level of N and Ke0
Outcome
protein contente0

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“increased level of N and K increased the protein content due to the active role of N and K in protein synthesis”

✓ located verbatim in the source · abstract, characters 1350–1461 · show in text ↑
t0

“upland rice”

✓ located verbatim in the source · title, characters 87–98 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

High nitrogen application decreased starch content.

Taxon
upland riceOryza sativat0
Treatment
high rate of N applicatione0
Outcome
starch contente0
Direction
decreasede0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“high rate of N application decreased the starch content”

✓ located verbatim in the source · abstract, characters 1472–1527 · show in text ↑
t0

“upland rice”

✓ located verbatim in the source · title, characters 87–98 · show in text ↑
Intervention effectauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Foliar zinc sulphate and sodium borate improved rice grain starch and protein content.

Taxon
upland riceOryza sativat0
Treatment
foliar nutrition of zinc sulphate and sodium borate at 45 DASe0
Outcome
starch and protein contente0
Direction
increasinge0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“foliar nutrition of zinc sulphate and sodium borate at 45 DAS considerably improved the quality of grain by increasing the starch and protein content”

✓ located verbatim in the source · abstract, characters 1568–1717 · show in text ↑
t0

“upland rice”

✓ located verbatim in the source · title, characters 87–98 · show in text ↑

zinc sulfate · quality: protein · Oryza sativa (rice)Positive and negative results

5 papers: 4 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

zinc sulfate · quality: sugar starch · Oryza sativa (rice)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

fertilization · quality: sugar starch · Oryza sativa (rice)Results differ

61 papers: 44 positive, 17 negative or no effect

43 papers in the same direction as this paper · 17 in the opposite direction

  1. no effect
  2. negative
  3. negative

57 papers more in this group

See all 61 papers →

nitrogen · quality: protein · Oryza sativa (rice)Results differ

100 papers: 89 positive, 11 negative or no effect

88 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. negative

96 papers more in this group

See all 100 papers →

fertilization · quality: protein · Oryza sativa (rice)Results differ

126 papers: 114 positive, 12 negative or no effect

113 papers in the same direction as this paper · 11 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

122 papers more in this group

See all 126 papers →

tillage · quality: protein · Oryza sativa (rice)Positive and negative results

11 papers: 8 positive, 3 negative or no effect

7 papers in the same direction as this paper · 3 in the opposite direction

  1. negative
  2. no effect
  3. no effect

7 papers more in this group

See all 11 papers →

application · quality: sugar starch · Oryza sativa (rice)Positive and negative results

24 papers: 21 positive, 3 negative or no effect

20 papers in the same direction as this paper · 3 in the opposite direction

  1. no effect
  2. negative
  3. no effect

20 papers more in this group

See all 24 papers →

nitrogen · quality: sugar starch · Oryza sativa (rice)Positive and negative results

57 papers: 40 positive, 17 negative or no effect

16 papers in the same direction as this paper · 40 in the opposite direction

  1. positive
  2. positive
  3. positive

53 papers more in this group

See all 57 papers →

8 of 10 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.