Abstract
Abstract Rice cultivation using substrate hydroponic system on the building’s rooftop is an alternative way to improve rice production. This research aimed to study the effect of growth media compositions on rice growth with substrate hydroponic system. The experiment used Completely Randomized Block Design with five treatments of growth media composition i.e. 100% rice husk charcoal; 100% cocopeat; 50% rice husk charcoal: 50% cocopeat; 25% rice husk charcoal: 75% cocopeat; and 75% rice husk charcoal: 25% cocopeat. The result showed that composition of 75% rice husk charcoal : 25% cocopeat significantly affected plant height. Otherwise, reformulating nutrient composition for hydroponic rice cultivation supported the growth media to perform better. The addition of NH 4 + as a source of nitrogen improved plant growth in vegetative stage. In addition, the ratio between K: Ca (1.25: 1) applied to complete requirement of those nutrients and considered as environmental stress defence. The use of a container becomes an alternative to maintain media relative humidity and nutritional EC value. Either in the rainy or dry season, relative humidity and nutrient EC of media must be checked frequently to maintain the optimum conditions for rice growth.
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Claims 6
Claim · model-written summary
A growth medium of 75% rice husk charcoal and 25% cocopeat significantly affected rice plant height.
- Taxon
- rice
Oryza sativat0 - Treatment
- 75% rice husk charcoal : 25% cocopeate1
- Outcome
- plant heighte1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Inpari 13 rice (Oryza sativa L.)”
e1“75% rice husk charcoal : 25% cocopeat significantly affected plant height”
Claim · model-written summary
Reformulated nutrient composition made the growth media perform better for hydroponic rice.
- Taxon
- riceOryza sativat0
- Treatment
- reformulating nutrient compositione2
- Outcome
- growth media to performe2
- Direction
- bettere2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Inpari 13 rice (Oryza sativa L.)”
e2“reformulating nutrient composition for hydroponic rice cultivation supported the growth media to perform better”
Claim · model-written summary
Addition of NH 4 + as a nitrogen source improved rice plant growth in the vegetative stage.
- Taxon
- riceOryza sativat0
- Organ / stage
- vegetative stagee3
- Treatment
- The addition of NH 4 + as a source of nitrogene3
- Outcome
- plant growthe3
- Direction
- improvede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Inpari 13 rice (Oryza sativa L.)”
e3“The addition of NH 4 + as a source of nitrogen improved plant growth in vegetative stage”
Claim · model-written summary
A K: Ca ratio of 1.25: 1 is considered an environmental stress defence for hydroponic rice.
- Taxon
- riceOryza sativat0
- Outcome
- ratio between K: Ca (1.25: 1)e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Inpari 13 rice (Oryza sativa L.)”
e4“the ratio between K: Ca (1.25: 1) applied to complete requirement of those nutrients and considered as environmental stress defence”
Claim · model-written summary
Using a container helps maintain media relative humidity and nutritional EC value in hydroponic rice.
- Taxon
- riceOryza sativat0
- Treatment
- use of a containere5
- Outcome
- maintain media relative humidity and nutritional EC valuee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Inpari 13 rice (Oryza sativa L.)”
e5“The use of a container becomes an alternative to maintain media relative humidity and nutritional EC value”
Claim · model-written summary
Relative humidity and nutrient EC of media must be checked frequently in the rainy or dry season for hydroponic rice.
- Taxon
- riceOryza sativat0
- Outcome
- relative humidity and nutrient EC of media must be checked frequentlye6
- Setting
- rainy or dry seasone6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Inpari 13 rice (Oryza sativa L.)”
e6“Either in the rainy or dry season, relative humidity and nutrient EC of media must be checked frequently to maintain the optimum conditions for rice growth”
The same questions in other papers
nitrogen · growth · Oryza sativa (rice)Positive and negative results
401 papers in the same direction as this paper · 101 in the opposite direction · 8 reporting no difference from an alternative
- negative
- negative
- negative
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