Abstract
This purpose of this study is to elucidate the mechanism of silicon fertilizer on mineral element distribution at heading stage in rice. In this study, a field experiment was carried out in the coastal beach saline-alkali of Jiangsu Province (3.4 g kg-1 soil salinity, pH 8.3). The conventional japonica rice (Huaidao 5) was used as the material, and three silicon fertilizer amounts (0, 60 and 100 kg hm-2) were applied with panicle fertilizer at panicle initiation stage. The results showed that: (1) Silicon panicle fertilizer promoted plant nutrient absorption at heading stage, increased dry matter accumulation at mature stage, and increased yield, Si60 increased by 4.3% on average, Si100 increased by 8.6% on average. (2) Silicon panicle fertilizer optimized the distribution of K+ and Na+ in rice at heading stage. Silicon increase K+ content in leaves, upper sheaths and lower stems of rice, decreased Na+ content in panicles, upper leaves, sheaths and stems, and increased the K+/Na+ ratio in various tissues, thus improving ion homeostasis of rice. (3) Silicon panicle fertilizer promoted the accumulation of N, P, Ca, Mg, Fe, and Mn in leaves. Compare with Si0, the average increase of the two silicon treatments was 16.5% in P, 18.5% in Mg, 22.4% in Ca and 19.8% in Fe, and alleviated the adverse effects of saline-alkali stress on rice leaves. In summary, silicon panicle fertilizer optimizes the absorption and distribution of mineral elements in rice, reduced salt stress in young organs, promoted the accumulation of beneficial elements in leaves, improved nutrient absorption of rice, and the effect of 100 kg hm−2 was better.
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Claims 14
Claim · model-written summary
Silicon panicle fertilizer increased nutrient absorption at heading.
- Taxon
- rice
Oryza sativat0 - Organ / stage
- heading stagee0
- Treatment
- Silicon panicle fertilizere0
- Outcome
- plant nutrient absorptione0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Silicon panicle fertilizer promoted plant nutrient absorption at heading stage”
t0“rice”
Claim · model-written summary
Silicon panicle fertilizer increased dry matter at maturity.
- Taxon
- riceOryza sativat0
- Organ / stage
- mature stagee0
- Treatment
- Silicon panicle fertilizert1
- Outcome
- dry matter accumulatione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased dry matter accumulation at mature stage”
t0“rice”
t1“Silicon panicle fertilizer promoted plant nutrient absorption at heading stage”
Claim · model-written summary
Si60 increased rice yield by 4.3% on average.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased yield, Si60 increased by 4.3% on average”
t0“rice”
Claim · model-written summary
Si100 increased rice yield by 8.6% on average.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si100 increased by 8.6% on average”
t0“rice”
t1“increased yield, Si60 increased by 4.3% on average, Si100 increased by 8.6% on average”
Claim · model-written summary
Silicon increased K+ content in rice leaves, upper sheaths, and lower stems.
- Taxon
- riceOryza sativae0
- Organ / stage
- leaves, upper sheaths and lower stemse0
- Treatment
- Silicone0
- Outcome
- K+ contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Silicon increase K+ content in leaves, upper sheaths and lower stems of rice”
Claim · model-written summary
Silicon decreased Na+ content in rice panicles, upper leaves, sheaths, and stems.
- Taxon
- riceOryza sativat0
- Organ / stage
- panicles, upper leaves, sheaths and stemse0
- Treatment
- Silicon panicle fertilizert1
- Outcome
- Na+ contente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreased Na+ content in panicles, upper leaves, sheaths and stems”
t0“rice”
t1“Silicon panicle fertilizer optimized the distribution of K+ and Na+ in rice at heading stage”
Claim · model-written summary
Silicon increased tissue K+/Na+ ratios.
- Taxon
- riceOryza sativat0
- Organ / stage
- various tissuese0
- Treatment
- Silicon panicle fertilizert1
- Outcome
- K+/Na+ ratioe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased the K+/Na+ ratio in various tissues”
t0“rice”
t1“Silicon panicle fertilizer optimized the distribution of K+ and Na+ in rice at heading stage”
Claim · model-written summary
Silicon promoted N and Mn accumulation in leaves.
- Taxon
- riceOryza sativat0
- Organ / stage
- leavese0
- Treatment
- Silicon panicle fertilizere0
- Outcome
- accumulation of N, P, Ca, Mg, Fe, and Mne0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Silicon panicle fertilizer promoted the accumulation of N, P, Ca, Mg, Fe, and Mn in leaves.”
t0“rice”
Claim · model-written summary
The two silicon treatments raised leaf P by 16.5% on average versus Si0.
- Taxon
- riceOryza sativat0
- Treatment
- two silicon treatmentse0
- Outcome
- Pe0
- Direction
- increasee0
- Value
- 16.5%e0
- Comparator
- Si0e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compare with Si0, the average increase of the two silicon treatments was 16.5% in P”
t0“rice”
Claim · model-written summary
The two silicon treatments raised leaf Mg by 18.5% on average versus Si0.
- Taxon
- riceOryza sativat0
- Treatment
- two silicon treatmentst1
- Outcome
- Mge0
- Direction
- increaset1
- Value
- 18.5%e0
- Comparator
- Si0t1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“18.5% in Mg”
t0“rice”
t1“Compare with Si0, the average increase of the two silicon treatments was 16.5% in P”
Claim · model-written summary
The two silicon treatments raised leaf Ca by 22.4% on average versus Si0.
- Taxon
- riceOryza sativat0
- Treatment
- two silicon treatmentse1
- Outcome
- Cae0
- Direction
- increasee1
- Value
- 22.4%e0
- Comparator
- Si0e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“22.4% in Ca”
t0“rice”
e1“Compare with Si0, the average increase of the two silicon treatments was 16.5% in P”
Claim · model-written summary
The two silicon treatments raised leaf Fe by 19.8% on average versus Si0.
- Taxon
- riceOryza sativat0
- Treatment
- two silicon treatmentse1
- Outcome
- Fee0
- Direction
- increasee1
- Value
- 19.8%e0
- Comparator
- Si0e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“19.8% in Fe”
t0“rice”
e1“Compare with Si0, the average increase of the two silicon treatments was 16.5% in P”
Claim · model-written summary
Silicon alleviated saline-alkali stress effects on rice leaves.
- Taxon
- riceOryza sativae0
- Treatment
- Silicon panicle fertilizert1
- Outcome
- adverse effects of saline-alkali stress on rice leavese0
- Direction
- alleviatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“alleviated the adverse effects of saline-alkali stress on rice leaves”
t1“Silicon panicle fertilizer promoted the accumulation of N, P, Ca, Mg, Fe, and Mn in leaves”
Claim · model-written summary
The 100 kg hm−2 dose performed better overall.
- Taxon
- riceOryza sativat0
- Outcome
- the effect of 100 kg hm−2 was bettere0
- Direction
- bettere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effect of 100 kg hm−2 was better.”
t0“rice”
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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.