Abstract
Abstract One of the problems of upland rice cultivation in dry land is the availability of water needed to maintain humidity and temperature around plant roots. Cogon grass ( Imperata cylindrica L.) mulch which has a long decomposed duration, can be an alternative to maintain the microclimate humidity and control weeds. This study aimed to obtain the best dose of cogon grass mulch on microclimate, weed management and upland rice yield on ameliorated ultisol soils. The research was carried out using a randomized complete block design with five doses of cogon grass mulch, i.e . 0, 10, 15, 20, and 25 tons/ha and three replications. Data were analyzed statistically by the F test at a 5% significance level and mean comparison using Tukey’s test. Results showed that applying cogon grass mulch could reduce temperature and increase the soil’s moisture. Biomass and species of weeds decreased with increasing doses of cogon grass mulch. Applied 10 tons/ha of cogon grass mulch effectively suppresses weed growth by 42.8%. Cogon grass mulch application did not affect upland rice growth variables, but 20 t/ha mulch significantly increased the yield by 21.7%.
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 6
Claim · model-written summary
Cogon grass mulch reduced soil temperature.
- Taxon
- upland rice
Oryza sativat0 - Treatment
- cogon grass mulche0
- Outcome
- temperaturee0
- Direction
- reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applying cogon grass mulch could reduce temperature and increase the soil’s moisture”
t0“upland rice”
Claim · model-written summary
Cogon grass mulch increased soil moisture.
- Taxon
- upland riceOryza sativat0
- Treatment
- cogon grass mulche0
- Outcome
- soil’s moisturee0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applying cogon grass mulch could reduce temperature and increase the soil’s moisture”
t0“upland rice”
Claim · model-written summary
Weed biomass decreased with increasing cogon grass mulch dose.
- Taxon
- upland riceOryza sativat0
- Treatment
- cogon grass mulche0
- Interactor
- weedse0weed
- Outcome
- Biomass and species of weedse0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Biomass and species of weeds decreased with increasing doses of cogon grass mulch”
t0“upland rice”
Claim · model-written summary
Ten tons per hectare of mulch suppressed weed growth by 42.8%.
- Taxon
- upland riceOryza sativat0
- Treatment
- 10 tons/ha of cogon grass mulche0
- Interactor
- weede0weed
- Outcome
- weed growthe0
- Direction
- suppressese0
- Value
- 42.8%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Applied 10 tons/ha of cogon grass mulch effectively suppresses weed growth by 42.8%”
t0“upland rice”
Claim · model-written summary
Cogon grass mulch did not affect upland rice growth variables.
- Taxon
- upland riceOryza sativae0
- Treatment
- Cogon grass mulch applicatione0
- Outcome
- upland rice growth variablese0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cogon grass mulch application did not affect upland rice growth variables”
Claim · model-written summary
Twenty tonnes per hectare of mulch increased upland rice yield by 21.7%.
- Taxon
- upland riceOryza sativat0
- Treatment
- 20 t/ha mulche0
- Outcome
- yielde0
- Direction
- increasede0
- Value
- 21.7%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“20 t/ha mulch significantly increased the yield by 21.7%”
t0“upland rice”
The same questions in other papers
mulching · yield · Oryza sativa (rice)Results differ
105 papers in the same direction as this paper · 17 in the opposite direction · 3 reporting no difference from an alternative
- negative
- negative
- negative
122 papers more in this group
See all 126 papers →mulching · weed · Oryza sativa (rice)Positive and negative results
30 papers in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
29 papers more in this group
See all 33 papers →mulching · growth · Oryza sativa (rice)Positive and negative results
11 papers in the same direction as this paper · 34 in the opposite direction
- positive
- positive
- positive
42 papers more in this group
See all 46 papers →mulching · soil: physics · Oryza sativa (rice)Results agree
12 papers in the same direction as this paper
- positive
- positive
- positive
9 papers more in this group
See all 13 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.