Abstract
Excessive use of inorganic fertilizers mainly NPK causes soil degradation, environment pollution, decreases production, and reduces soil biological activity. System of rice intensification is one method of rice cultivation. SRI main principles are seed transplanting at young age (7-11 days old), transplanting use single seedling methode, seedlings at wide plant spacing ≥ 25x25 cm, intermittent irrigation and field conditions are not flooded, and reduction of chemical fertilizers and application of organic fertilizer. This research was conducted at Situgede Village, West Bogor District, Bogor. The research design was split plot randomized complete block design with three blocks. Two rice cultivation system as the main plot and five combinations of fertilizer application as sub plot. In the main plot consisted of two rice cultivation which is conventional and SRI while the subplot consisted of five combinations of fertilizer application is no fertilition, 100% inorganic fertilizers (Urea = 250 kg ha-1, SP-36 = 75 kg ha-1 and KCl = 50 kg ha-1), 75% inorganic fertilizers (Urea = 187 kg ha-1, SP-36 = 56.8 kg ha-1 and KCl = 37.5 kg ha-1) + 200 kg of bio-organicfertilizer, 50% inorganic fertilizers (Urea = 125 kg ha-1, SP-36 = 37.5 kg ha-1 and KCl = 25 kg ha-1) + 200 kg of bio-organicfertilizer and 50% inorganic fertilizers (Urea = 125 kg ha-1, SP-36 = 37.5 kg ha-1 and KCl = 25 kg ha-1). The results showed that SRI method produced maximum number of tillers higher that of 25.8 tillers/hill or an increase of 64.33% compared with conventional methods. Wet and dry shoot weight of wet and dry weight of root is greater in successive SRI method of 13.3%, 19.1%, 1.40% and 41.8% compared with the conventional method. The number of productive tillers, grain number/panicle, 1000 grains weight, root wet weight and dry grain at SRI method was higher than those in conventional method respectively 58.6%, 37.0%, 2.50%, 25.1% and 32.6%. The uptake of N and P in the SRI method higher at 72.0% and 100% compared to conventional method. Application 50% inorganic fertilizer + 200 kg bio-organic fertilizer, producing more fresh weight biomass, plant dry weight, wet weight and dry weight, number of productive tillers, 1000 grain weight respectively 13.9%, 42.0%, 49.8%, 74.0%, 10.7% and 2.48% compared with the dosage recommendations dose or 100% inorganic fertilizer. N, P and K uptake at 50% inorganic fertilizer + 200 kg of bio-organic fertilizer treatment higher (55.6%, 66.7% and 46.2%) than the full recommendation dose of inorganic fertilizer. Bio-organic fertilizer can be used as substitute of NPK fertilizer. Keywords : Bio-organic fertilizer, inorganic fertilizer, System of Rice Intensification (SRI)
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Claims 10
Claim · model-written summary
The SRI method increased the number of tillers of rice by 64.33% compared with conventional methods.
- Taxon
- rice
Oryza sativae0 - Treatment
- SRI methode1
- Outcome
- number of tillerse1
- Direction
- increasee1
- Value
- 64.33%e1
- Comparator
- conventional methodse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“System of rice intensification is one method of rice cultivation”
e1“SRI method produced maximum number of tillers higher that of 25.8 tillers/hill or an increase of 64.33% compared with conventional methods”
Claim · model-written summary
The SRI method increased shoot and root weights of rice, with values of 13.3%, 19.1%, 1.40% and 41.8% compared with the conventional method.
- Taxon
- riceOryza sativae0
- Treatment
- successive SRI methode2
- Outcome
- wet and dry shoot weight of wet and dry weight of roote2
- Direction
- greatere2
- Value
- 13.3%, 19.1%, 1.40% and 41.8%e2
- Comparator
- conventional methode2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“System of rice intensification is one method of rice cultivation”
e2“Wet and dry shoot weight of wet and dry weight of root is greater in successive SRI method of 13.3%, 19.1%, 1.40% and 41.8% compared with the conventional method”
Claim · model-written summary
The SRI method increased the number of productive tillers of rice by 58.6% compared with conventional method.
- Taxon
- riceOryza sativae0
- Treatment
- SRI methode3
- Outcome
- number of productive tillerse3
- Direction
- highere3
- Value
- 58.6%e3
- Comparator
- conventional methode3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“System of rice intensification is one method of rice cultivation”
e3“The number of productive tillers, grain number/panicle, 1000 grains weight, root wet weight and dry grain at SRI method was higher than those in conventional method respectively 58.6%, 37.0%, 2.50%, 25.1% and 32.6%”
Claim · model-written summary
The SRI method increased grain number per panicle of rice by 37.0% compared with conventional method.
- Taxon
- riceOryza sativae0
- Treatment
- SRI methode3
- Outcome
- grain number/paniclee3
- Direction
- highere3
- Value
- 37.0%e3
- Comparator
- conventional methode3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“System of rice intensification is one method of rice cultivation”
e3“The number of productive tillers, grain number/panicle, 1000 grains weight, root wet weight and dry grain at SRI method was higher than those in conventional method respectively 58.6%, 37.0%, 2.50%, 25.1% and 32.6%”
Claim · model-written summary
The SRI method increased 1000-grain weight of rice by 2.50% compared with conventional method.
- Taxon
- riceOryza sativae0
- Treatment
- SRI methode3
- Outcome
- 1000 grains weighte3
- Direction
- highere3
- Value
- 2.50%e3
- Comparator
- conventional methode3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“System of rice intensification is one method of rice cultivation”
e3“The number of productive tillers, grain number/panicle, 1000 grains weight, root wet weight and dry grain at SRI method was higher than those in conventional method respectively 58.6%, 37.0%, 2.50%, 25.1% and 32.6%”
Claim · model-written summary
The SRI method increased root wet weight of rice by 25.1% compared with conventional method.
- Taxon
- riceOryza sativae0
- Treatment
- SRI methode3
- Outcome
- root wet weighte3
- Direction
- highere3
- Value
- 25.1%e3
- Comparator
- conventional methode3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“System of rice intensification is one method of rice cultivation”
e3“The number of productive tillers, grain number/panicle, 1000 grains weight, root wet weight and dry grain at SRI method was higher than those in conventional method respectively 58.6%, 37.0%, 2.50%, 25.1% and 32.6%”
Claim · model-written summary
The SRI method increased dry grain yield of rice by 32.6% compared with conventional method.
- Taxon
- riceOryza sativae0
- Treatment
- SRI methode3
- Outcome
- dry graine3
- Direction
- highere3
- Value
- 32.6%e3
- Comparator
- conventional methode3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“System of rice intensification is one method of rice cultivation”
e3“The number of productive tillers, grain number/panicle, 1000 grains weight, root wet weight and dry grain at SRI method was higher than those in conventional method respectively 58.6%, 37.0%, 2.50%, 25.1% and 32.6%”
Claim · model-written summary
The SRI method increased N and P uptake of rice, by 72.0% and 100%, compared with conventional method.
- Taxon
- riceOryza sativae0
- Treatment
- SRI methode4
- Outcome
- uptake of N and Pe4
- Direction
- highere4
- Value
- 72.0% and 100%e4
- Comparator
- conventional methode4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“System of rice intensification is one method of rice cultivation”
e4“The uptake of N and P in the SRI method higher at 72.0% and 100% compared to conventional method”
Claim · model-written summary
Inorganic fertilizer at 50% plus 200 kg bio-organic fertilizer increased N, P and K uptake of rice by 55.6%, 66.7% and 46.2% compared with the full recommended dose of inorganic fertilizer.
- Taxon
- riceOryza sativae0
- Treatment
- 50% inorganic fertilizer + 200 kg of bio-organicfertilizere6
- Outcome
- N, P and K uptakee6
- Direction
- highere6
- Value
- 55.6%, 66.7% and 46.2%e6
- Comparator
- full recommendation dose of inorganic fertilizere6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“System of rice intensification is one method of rice cultivation”
e6“N, P and K uptake at 50% inorganic fertilizer + 200 kg of bio-organicfertilizer treatment higher (55.6%, 66.7% and 46.2%) than the full recommendation dose of inorganic fertilizer”
Claim · model-written summary
Bio-organic fertilizer can be used as a substitute for NPK fertilizer in rice production.
- Taxon
- riceOryza sativae0
- Outcome
- substitute of NPK fertilizere7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“System of rice intensification is one method of rice cultivation”
e7“Bio-organic fertilizer can be used as substitute of NPK fertilizer”
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