Paper · 2020 · Open Agriculture

The effect of soil water content and biochar on rice cultivation in polybag

Paiman; Iqbal Effendy

5
claims
8
verbatim quotes
18
citations
1
research areas
✓
Open access · cc-by

Abstract

Abstract Rice ( Oryza sativa L.) production is important in the national food of Indonesia. The growth and yield of rice can be increased by the soil water supply and biochar application into the soil in a polybag. Water is a unique material resource that plays a vital role in agriculture. Biochar is a carbon-rich product obtained from biomass and can hold water and nutrients, making them more available to plants. The biochar used in this study was made from rice husks. This study aims to determine the effect of soil water content and biochar application in the soil on the growth and yield of rice in the polybag. The experiment appears to be a randomized multifactorial design with one factor being water content and the other being biochar application rate. A completely random design usually suggests only one factor in the experimental design. The first factor was soil water content consisting of two levels, i.e.: field capacity and soil waterlogging. The second factor was the biochar application consisting of four doses i.e.: 0; 14; 28; and 42 tons/ha. The results of the research showed that rice cultivation with soil water-logging is better than field capacity on the tillers number, panicle length, and harvest index. Without biochar application was given higher tillers number, but biochar dose of 14 tons/ha produced wider leaf area. There was a significant interaction between soil water content and biochar application on the dry weight of roots, shoots, and grains. The treatment combination of soil waterlogging and biochar dose of 14 tons/ha was most effective at increasing the growth and yield of rice in a polybag.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

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 5

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Waterlogging improved tiller number, panicle length, and harvest index relative to field capacity.

Treatment
soil water-logginge0
Outcome
tillers number, panicle length, and harvest indexe0
Direction
bettere0
Comparator
field capacitye0

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

“rice cultivation with soil water-logging is better than field capacity on the tillers number, panicle length, and harvest index”

✓ located verbatim in the source · abstract, characters 1109–1236 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

No biochar gave higher tiller number.

Treatment
Without biochar applicatione0
Outcome
tillers numbere0
Direction
highere0

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

“Without biochar application was given higher tillers number”

✓ located verbatim in the source · abstract, characters 1238–1297 · show in text ↑
t0

“rice cultivation”

✓ located verbatim in the source · title, characters 48–64 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biochar at 14 tons/ha produced wider leaf area.

Treatment
biochar dose of 14 tons/hae0
Outcome
leaf areae0
Direction
widere0

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

“biochar dose of 14 tons/ha produced wider leaf area”

✓ located verbatim in the source · abstract, characters 1303–1354 · show in text ↑
t0

“rice cultivation”

✓ located verbatim in the source · title, characters 48–64 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Water content and biochar interacted significantly for dry weight of roots, shoots, and grains.

Treatment
soil water content and biochar applicatione0
Outcome
dry weight of roots, shoots, and grainse0

Not reportedDirection

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

“There was a significant interaction between soil water content and biochar application on the dry weight of roots, shoots, and grains”

✓ located verbatim in the source · abstract, characters 1356–1489 · show in text ↑
t0

“rice cultivation”

✓ located verbatim in the source · title, characters 48–64 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Waterlogging combined with 14 tons/ha biochar was most effective for growth and yield.

Treatment
soil waterlogging and biochar dose of 14 tons/hae0
Outcome
growth and yielde0
Direction
increasinge0
Setting
polybage0

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 treatment combination of soil waterlogging and biochar dose of 14 tons/ha was most effective at increasing the growth and yield of rice in a polybag”

✓ located verbatim in the source · abstract, characters 1491–1643 · show in text ↑

soil water · yield · Oryza sativa (rice)Positive and negative results

44 papers: 21 positive, 23 negative or no effect

20 papers in the same direction as this paper · 20 in the opposite direction · 3 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

40 papers more in this group

See all 44 papers →

biochar · growth · Oryza sativa (rice)Positive and negative results

70 papers: 64 positive, 6 negative or no effect

63 papers in the same direction as this paper · 5 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. positive
  3. negative

66 papers more in this group

See all 70 papers →

biochar · yield · Oryza sativa (rice)Positive and negative results

147 papers: 135 positive, 12 negative or no effect

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

  1. positive
  2. positive
  3. positive

143 papers more in this group

See all 147 papers →

flooding · yield · Oryza sativa (rice)Positive and negative results

286 papers: 193 positive, 93 negative or no effect

192 papers in the same direction as this paper · 82 in the opposite direction · 11 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

282 papers more in this group

See all 286 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.