Abstract
The new plant type of rice, or ‘padi tipe baru’ (PTB) in Indonesian, is a new group of rice cultivars with a higher productivity compared to the modern rice varieties (‘varietas unggul baru’ or VUB). This study was conducted to determine the optimum dose of nitrogen fertilization and the seedling density or number of seedlings per hill to increase growth and yield of the new type of rice “IPB 3”. The experiment was conducted in the Bogor Experimental Station in January to June 2015. Nitrogen doses (90, 120, 150, 180 kg N.ha-1) and number of seeds per hill (1, 5, 10, 15 and 20) were tested. The results showed that the increased dose of nitrogen fertilizer reduced the percentage of filled grains, the rate of photosynthesis and the grain yield per hectare. Similarly, an increase in the seedling density up to 15 seeds decreased the dry matter of the crop, the number of grains per panicle, and grain weight per plant, but increased the grain yield per hectare. The optimum yield of “IPB 3S” was achieved with 90 kg N.ha-1 with 15 seeds per hill. The results of this study have provided a guideline for an improved nitrogen management in relation to rice seedling population to increase yield of a new rice type “IPB3S”.Keywords: “IPB 3S”, new plant type, fertilizer, local variety
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Claims 8
Claim · model-written summary
Increasing the nitrogen dose reduced the percentage of filled grains of IPB 3S rice.
- Taxon
- Oryza sativa L.
Oryza sativat0 - Treatment
- increased dose of nitrogen fertilizere0
- Outcome
- percentage of filled grainse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A New Rice Type (Oryza sativa L.)”
e0“The results showed that the increased dose of nitrogen fertilizer reduced the percentage of filled grains, the rate of photosynthesis and the grain yield per hectare”
Claim · model-written summary
Increasing the nitrogen dose reduced the rate of photosynthesis of IPB 3S rice.
- Taxon
- Oryza sativa L.Oryza sativat0
- Treatment
- increased dose of nitrogen fertilizere0
- Outcome
- the rate of photosynthesise0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A New Rice Type (Oryza sativa L.)”
e0“The results showed that the increased dose of nitrogen fertilizer reduced the percentage of filled grains, the rate of photosynthesis and the grain yield per hectare”
Claim · model-written summary
Increasing the nitrogen dose reduced the grain yield per hectare of IPB 3S rice.
- Taxon
- Oryza sativa L.Oryza sativat0
- Treatment
- increased dose of nitrogen fertilizere0
- Outcome
- the grain yield per hectaree0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A New Rice Type (Oryza sativa L.)”
e0“The results showed that the increased dose of nitrogen fertilizer reduced the percentage of filled grains, the rate of photosynthesis and the grain yield per hectare”
Claim · model-written summary
Increasing seedling density up to 15 seeds per hill decreased the dry matter of the crop.
- Taxon
- Oryza sativa L.Oryza sativat0
- Treatment
- an increase in the seedling density up to 15 seedse1
- Outcome
- the dry matter of the crope1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A New Rice Type (Oryza sativa L.)”
e1“an increase in the seedling density up to 15 seeds decreased the dry matter of the crop, the number of grains per panicle, and grain weight per plant, but increased the grain yield per hectare”
Claim · model-written summary
Increasing seedling density up to 15 seeds per hill decreased the number of grains per panicle.
- Taxon
- Oryza sativa L.Oryza sativat0
- Treatment
- an increase in the seedling density up to 15 seedse1
- Outcome
- the number of grains per paniclee1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A New Rice Type (Oryza sativa L.)”
e1“an increase in the seedling density up to 15 seeds decreased the dry matter of the crop, the number of grains per panicle, and grain weight per plant, but increased the grain yield per hectare”
Claim · model-written summary
Increasing seedling density up to 15 seeds per hill decreased grain weight per plant.
- Taxon
- Oryza sativa L.Oryza sativat0
- Treatment
- an increase in the seedling density up to 15 seedse1
- Outcome
- grain weight per plante1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A New Rice Type (Oryza sativa L.)”
e1“an increase in the seedling density up to 15 seeds decreased the dry matter of the crop, the number of grains per panicle, and grain weight per plant, but increased the grain yield per hectare”
Claim · model-written summary
Increasing seedling density up to 15 seeds per hill increased the grain yield per hectare.
- Taxon
- Oryza sativa L.Oryza sativat0
- Treatment
- an increase in the seedling density up to 15 seedse1
- Outcome
- the grain yield per hectaree1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A New Rice Type (Oryza sativa L.)”
e1“an increase in the seedling density up to 15 seeds decreased the dry matter of the crop, the number of grains per panicle, and grain weight per plant, but increased the grain yield per hectare”
Claim · model-written summary
The optimum yield of IPB 3S rice was achieved with 90 kg N/ha and 15 seeds per hill.
- Taxon
- Oryza sativa L.Oryza sativat0
- Material
- IPB 3Se2
- Treatment
- 90 kg N.ha-1 with 15 seeds per hille2
- Outcome
- optimum yielde2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A New Rice Type (Oryza sativa L.)”
e2“The optimum yield of “IPB 3S” was achieved with 90 kg N.ha-1 with 15 seeds per hill”
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