Abstract
Abstract Rice productivity in the tropics largely depends on fertilizers as soils are commonly low in nitrogen and phosphorus. Some farmers in this region cultivate rice using the hand-broadcast method, which has resulted in a low yield. Therefore, this on-farm experiment was conducted to compare the performance and yield of broadcasted and transplanted rice production systems under different fertilizer combinations. The experimental was set up in a split plot design with six combination treatments and seven replications. The main plots were planting methods comprised of transplanting and broadcasting. The subplots were a combination of NPK fertilizer, urea, and biofertilizer (BF) with and without compost, while the control treatment was NPK fertilizer and urea. The BF contained nitrogen fixer bacteria and phosphate solubilizer microbes. The results showed that fertilizer combination increased shoot height, root length, shoot and root dry weight (RDW), root-to-shoot ratio (R/S), tiller number, 1,000-grain weight, and yield but did not affect clump number. In addition, the planting method affected the parameters except for R/S and 1,000-grain weight. The yield of transplanted rice grown with NPK fertilizer and urea was 17.5% higher than that of the broadcasting method. Incorporation of chemical fertilizer combined with compost and BF resulted in a comparable yield; transplanted rice yield was only 2.18% more than broadcasted. This showed that diverse fertilizer application is needed to minimize the yield gap between broadcasted and transplanted rice.
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Claims 6
Claim · model-written summary
Fertilizer combinations increased several growth and yield traits.
Not reportedTaxonComparator
Verbatim
e0“fertilizer combination increased shoot height, root length, shoot and root dry weight (RDW), root-to-shoot ratio (R/S), tiller number, 1,000-grain weight, and yield”
Claim · model-written summary
Fertilizer combinations did not affect clump number.
Not reportedTaxonTreatmentComparator
Verbatim
e0“but did not affect clump number”
Claim · model-written summary
Planting method affected parameters except R/S and grain weight.
- Outcome
- parameterse0
Not reportedTaxonDirection
Verbatim
e0“the planting method affected the parameters except for R/S and 1,000-grain weight”
Claim · model-written summary
Transplanted NPK and urea rice yield exceeded broadcast rice by 17.5%.
- Taxon
- rice
Oryza sativae0 - Treatment
- transplanted rice grown with NPK fertilizer and ureae0
- Outcome
- yielde0
- Direction
- highere0
- Value
- 17.5%e0
- Comparator
- broadcasting methode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The yield of transplanted rice grown with NPK fertilizer and urea was 17.5% higher than that of the broadcasting method.”
Claim · model-written summary
With compost and biofertilizer, transplanted yield exceeded broadcast by 2.18%.
- Taxon
- riceOryza sativae0
- Treatment
- transplanted ricee0
- Outcome
- yielde0
- Direction
- moree0
- Value
- 2.18%e0
- Comparator
- broadcastede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“transplanted rice yield was only 2.18% more than broadcasted”
Claim · model-written summary
Diverse fertilizer application was recommended to minimize the transplant–broadcast gap.
- Taxon
- riceOryza sativae0
- Outcome
- diverse fertilizer applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“diverse fertilizer application is needed to minimize the yield gap between broadcasted and transplanted rice”
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