Abstract
A field experiment was conducted to study the effects of sulfur plus resin-coated urea fertilizer on the winter wheat dry matter accumulation and allocation and grain yield. Four treatments were installed, i.e., sulfur plus resin-coated urea (SRCU), resin-coated urea (RCU), sulfur-amended conventional urea (SU), and conventional urea (U). The coated urea fertilizers were applied as basal, and the conventional urea fertilizers were 50% applied as basal and 50% applied as topdressing. There were no significant differences in the plant dry matter accumulation and grain yield between treatments RCU and U. Under the conditions the available S content in 0-20 cm soil layer was 43.2 mg x kg(-1) and the S application rate was 91.4 kg x hm(-2), treatments SRCU and SU had no significant differences in the dry matter accumulation and allocation after anthesis and the grain yield, but the amount of the assimilates after anthesis allocated in grain, the grain-filling rate at mid grain-filling stage, the 1000-grain weight, and the grain yield in the two treatments were significantly higher than those in treatment RCU. When the available S content in 0-20 cm soil layer was 105.1 mg x kg(-1) and the S application rate was 120 kg x hm(-2), the grain yield in treatment SRCU was significantly higher than that in treatment SU, but had no significant difference with that in treatments RCU and U. These results suggested that from the viewpoints of dry matter accumulation and allocation and grain yield, the nitrogen released from SRCU had the same regulation effect as the conventional urea 50% applied as basal and 50% applied as topdressing, while the regulation effect of the sulfur released from SRCU was controlled by the available S content in 0-20 cm soil layer. When the soil available S content was 43.2 mg x kg(-1), the released sulfur could promote the dry matter accumulation after anthesis and the grain-filling, and increase the grain yield significantly; when the soil available S content was 105.1 mg x kg(-1), the released sulfur from SRCU had no significant effect in increasing grain yield. Excessive S-amendment could even induce the decrease of grain yield.
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Claims 16
Claim · model-written summary
RCU and conventional urea did not differ significantly in plant dry matter accumulation.
- Taxon
- winter wheat
Triticum aestivumt0 - Treatment
- RCUe0
- Outcome
- plant dry matter accumulatione0
- Comparator
- Ue0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were no significant differences in the plant dry matter accumulation and grain yield between treatments RCU and U.”
t0“winter wheat”
Claim · model-written summary
RCU and conventional urea did not differ significantly in grain yield.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- RCUe0
- Outcome
- grain yielde0
- Comparator
- Ue0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were no significant differences in the plant dry matter accumulation and grain yield between treatments RCU and U.”
t0“winter wheat”
Claim · model-written summary
At 43.2 mg x kg(-1) available soil S, SRCU and SU did not significantly differ in post-anthesis dry matter accumulation and allocation.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- SRCUe0
- Outcome
- dry matter accumulation and allocation after anthesise0
- Comparator
- SUe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“treatments SRCU and SU had no significant differences in the dry matter accumulation and allocation after anthesis and the grain yield”
t0“winter wheat”
Claim · model-written summary
At 43.2 mg x kg(-1) available soil S, SRCU and SU did not significantly differ in grain yield.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- SRCUe0
- Outcome
- grain yielde0
- Comparator
- SUe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“treatments SRCU and SU had no significant differences in the dry matter accumulation and allocation after anthesis and the grain yield”
t0“winter wheat”
Claim · model-written summary
At the lower soil S level, SRCU and SU allocated more post-anthesis assimilates to grain than RCU.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- two treatmentse0
- Outcome
- amount of the assimilates after anthesis allocated in graine0
- Direction
- highere0
- Comparator
- RCUe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the amount of the assimilates after anthesis allocated in grain, the grain-filling rate at mid grain-filling stage, the 1000-grain weight, and the grain yield in the two treatments were significantly higher than those in treatment RCU”
t0“winter wheat”
Claim · model-written summary
At the lower soil S level, SRCU and SU had a higher mid-stage grain-filling rate than RCU.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- two treatmentse0
- Outcome
- grain-filling rate at mid grain-filling stagee0
- Direction
- highere0
- Comparator
- RCUe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the grain-filling rate at mid grain-filling stage, the 1000-grain weight, and the grain yield in the two treatments were significantly higher than those in treatment RCU”
t0“winter wheat”
Claim · model-written summary
At the lower soil S level, SRCU and SU had higher 1000-grain weight than RCU.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- two treatmentse0
- Outcome
- 1000-grain weighte0
- Direction
- highere0
- Comparator
- RCUe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the 1000-grain weight, and the grain yield in the two treatments were significantly higher than those in treatment RCU”
t0“winter wheat”
Claim · model-written summary
At the lower soil S level, SRCU and SU had higher grain yield than RCU.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- two treatmentse0
- Outcome
- grain yielde0
- Direction
- highere0
- Comparator
- RCUe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the grain yield in the two treatments were significantly higher than those in treatment RCU”
t0“winter wheat”
Claim · model-written summary
At the higher soil S level, SRCU yield exceeded SU yield.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- SRCUe0
- Outcome
- grain yielde0
- Direction
- highere0
- Comparator
- SUe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the grain yield in treatment SRCU was significantly higher than that in treatment SU”
t0“winter wheat”
Claim · model-written summary
At the higher soil S level, SRCU yield did not significantly differ from RCU and U.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- SRCUe0
- Outcome
- grain yielde0
- Comparator
- RCU and Ue0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the grain yield in treatment SRCU was significantly higher than that in treatment SU, but had no significant difference with that in treatments RCU and U”
t0“winter wheat”
Claim · model-written summary
The authors interpreted nitrogen release from SRCU as regulating dry matter and yield like split-applied conventional urea.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- SRCUe0
- Outcome
- regulation effecte0
- Comparator
- conventional urea 50% applied as basal and 50% applied as topdressinge0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the nitrogen released from SRCU had the same regulation effect as the conventional urea 50% applied as basal and 50% applied as topdressing”
t0“winter wheat”
Claim · model-written summary
At 43.2 mg x kg(-1) soil S, released sulfur promoted post-anthesis dry matter accumulation.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- released sulfure0
- Outcome
- dry matter accumulation after anthesise0
- Direction
- promotee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the released sulfur could promote the dry matter accumulation after anthesis and the grain-filling, and increase the grain yield significantly”
t0“winter wheat”
Claim · model-written summary
At 43.2 mg x kg(-1) soil S, released sulfur promoted grain filling.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- released sulfure0
- Outcome
- grain-fillinge0
- Direction
- promotee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the released sulfur could promote the dry matter accumulation after anthesis and the grain-filling, and increase the grain yield significantly”
t0“winter wheat”
Claim · model-written summary
At 43.2 mg x kg(-1) soil S, released sulfur significantly increased grain yield.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- released sulfure0
- Outcome
- grain yielde0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the released sulfur could promote the dry matter accumulation after anthesis and the grain-filling, and increase the grain yield significantly”
t0“winter wheat”
Claim · model-written summary
At 105.1 mg x kg(-1) soil S, sulfur released from SRCU did not significantly increase grain yield.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- released sulfur from SRCUe0
- Outcome
- grain yielde0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the released sulfur from SRCU had no significant effect in increasing grain yield”
t0“winter wheat”
Claim · model-written summary
Excessive sulfur amendment could decrease grain yield.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- Excessive S-amendmente0
- Outcome
- grain yielde0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Excessive S-amendment could even induce the decrease of grain yield”
t0“winter wheat”
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See all 2,061 papers →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.