Abstract
Due to the long molecular chain and high molecularweight of chitosan, the application is very limited. The radiation process can reduce molecular weight and shorten the molecular chain. This study aims to determine the characterization of irradiated chitosan coated on NPK as a growth stimulant for maize and to know the influence of NPK fertilizer coating with chitosan (R-1) and irradiated chitosan (R-2) on the growth and yield of corn. Chitosan before and after irradiation was characterized, including free radical analysis, changes in functional groups, thermal properties, viscosity, and molecular weight. The results showed that the form of the free radical spectrum of chitosan was peroxide radical. For functional group analysis using FTIR equipment between chitosan without irradiation and chitosan irradiated at a dose of 50 kGy showed no change in the functional group. Thermal analysis with DSC shows exothermic at a temperature of 250 0 C to 350 0 C. To determine the application of NPK fertilizer coated with chitosan (R-1) and irradiated chitosan (R-2) on the growth of corn plants. Growth parameters included the number of plants starting to flower from 50 plants, the weight of corn fruit, and the average weight of corn cobs after 60 days of planting. From the results that have been achieved, the treatment of NPK fertilizer coated with irradiated chitosan increased the weight of the corn cobs. The administration of NPK + chitosan (R1) and NPK + chitosan radiation (R-2) showed that on the 47th day after planting, almost all of the maize trees flowered at 84% and 96%, while only NPK was 54%. Corn fruit has given NPK + chitosan radiation (R-2) aged 60 days can be harvested and only with NPK 84 days old.
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Claims 7
Claim · model-written summary
The free radical spectrum of chitosan was of the peroxide radical form.
Not reportedTaxon
Verbatim
e1“the form of the free radical spectrum of chitosan was peroxide radical”
Claim · model-written summary
Irradiation of chitosan at 50 kGy did not change its functional groups compared with non-irradiated chitosan.
- Treatment
- chitosan irradiated at a dose of 50 kGye2
- Outcome
- functional groupe2
- Direction
- no changee2
- Comparator
- chitosan without irradiatione2
Not reportedTaxon
Verbatim
e2“chitosan without irradiation and chitosan irradiated at a dose of 50 kGy showed no change in the functional group”
Claim · model-written summary
DSC thermal analysis of chitosan showed an exothermic event at 250 to 350 °C.
Not reportedTaxon
Verbatim
e3“Thermal analysis with DSC shows exothermic at a temperature of 250 0 C to 350 0 C”
Claim · model-written summary
NPK fertilizer coated with irradiated chitosan increased the weight of corn cobs.
- Taxon
- corn
Zea mays subsp. mayse4 - Organ / stage
- corn cobse4
- Treatment
- NPK fertilizer coated with irradiated chitosane4
- Outcome
- weight of the corn cobse4
- Direction
- increasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“the treatment of NPK fertilizer coated with irradiated chitosan increased the weight of the corn cobs”
Claim · model-written summary
On day 47 after planting, almost all maize plants given NPK + chitosan (R1) had flowered (84%), versus 54% with NPK alone.
- Treatment
- NPK + chitosan (R1)e5
- Outcome
- flowerede5
- Direction
- higherinferrede5
- Value
- 84%e5
- Qualifier
- 54%e5
- Comparator
- only NPKe5
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“The administration of NPK + chitosan (R1) and NPK + chitosan radiation (R-2) showed that on the 47th day after planting, almost all of the maize trees flowered at 84% and 96%, while only NPK was 54%”
Claim · model-written summary
On day 47 after planting, flowering with NPK + chitosan radiation (R-2) reached 96%, versus 54% with NPK alone.
- Treatment
- NPK + chitosan radiation (R-2)e5
- Outcome
- flowerede5
- Direction
- higherinferrede5
- Value
- 96%e5
- Qualifier
- 54%e5
- Comparator
- only NPKe5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“The administration of NPK + chitosan (R1) and NPK + chitosan radiation (R-2) showed that on the 47th day after planting, almost all of the maize trees flowered at 84% and 96%, while only NPK was 54%”
Claim · model-written summary
Corn fruit with NPK + chitosan radiation (R-2) can be harvested at 60 days, versus 84 days with NPK alone.
- Taxon
- CornZea mays subsp. mayse6
- Treatment
- NPK + chitosan radiation (R-2)e6
- Outcome
- can be harvestede6
- Direction
- lowerinferrede6
- Value
- 60 dayse6
- Qualifier
- 84 days olde6
- Comparator
- only with NPKe6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Corn fruit has given NPK + chitosan radiation (R-2) aged 60 days can be harvested and only with NPK 84 days old”
The same questions in other papers
fertilization · organism · Zea mays (maize)Results differ
136 papers in the same direction as this paper · 20 in the opposite direction · 5 reporting no difference from an alternative
- negative
- no effect
- no effect
158 papers more in this group
See all 162 papers →radiation · organism · Zea mays (maize)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
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.