Abstract
Leymus chinensis is the dominant species of eastern Eurasia steppes.However,it produces few seeds and has weak sexual reproduction in natural conditions,thus severely restricting its artificial utilization. Fertilization could be an efficient method for enhancing seed yield.We investigated the effects of nitrogen,phosphorus and potassium applied at various growth stages on heading percentage,seed-setting percentage and seed yield by orthodox design experiments.Nitrogen,phosphorus and potassium had no significant effect on heading percentage or heading number but did significantly enhance the seed-setting percentage and seed number.The effects of early application of nitrogen and potassium on setting and seed yield were more obvious.Using range analysis,we conclude that early application of 120 kg/hm2 urea and 100 kg/hm2 vitriol potassium(superphosqhate) is theoretically the best combination.
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Claims 4
Claim · model-written summary
Nitrogen, phosphorus and potassium had no significant effect on heading percentage or heading number.
- Taxon
- Leymus chinensisLeymus chinensist0
- Treatment
- Nitrogen,phosphorus and potassiume0
- Outcome
- heading percentage or heading numbere0
- Direction
- no significant effecte0
Not reportedComparator
Verbatim
e0“Nitrogen,phosphorus and potassium had no significant effect on heading percentage or heading number but did significantly enhance the seed-setting percentage and seed number.”
t0“Leymus chinensis”
Claim · model-written summary
Nitrogen, phosphorus and potassium significantly enhanced seed-setting percentage and seed number.
- Taxon
- Leymus chinensisLeymus chinensist0
- Treatment
- Nitrogen,phosphorus and potassiume0
- Outcome
- seed-setting percentage and seed numbere0
- Direction
- enhancee0
Not reportedComparator
Verbatim
e0“Nitrogen,phosphorus and potassium had no significant effect on heading percentage or heading number but did significantly enhance the seed-setting percentage and seed number.”
t0“Leymus chinensis”
Claim · model-written summary
Early nitrogen and potassium application had more obvious effects on setting and seed yield.
- Taxon
- Leymus chinensisLeymus chinensist0
- Treatment
- early application of nitrogen and potassiume0
- Outcome
- setting and seed yielde0
- Direction
- more obviouse0
Not reportedComparator
Verbatim
e0“The effects of early application of nitrogen and potassium on setting and seed yield were more obvious.”
t0“Leymus chinensis”
Claim · model-written summary
Range analysis identified early urea and potassium application as theoretically the best combination.
- Taxon
- Leymus chinensisLeymus chinensist0
- Outcome
- early application of 120 kg/hm2 urea and 100 kg/hm2 vitriol potassium(superphosqhate)e0
- Qualifier
- theoretically the best combinatione0
Verbatim
e0“Using range analysis,we conclude that early application of 120 kg/hm2 urea and 100 kg/hm2 vitriol potassium(superphosqhate) is theoretically the best combination.”
t0“Leymus chinensis”
The same questions in other papers
nitrogen · phenology · Leymus chinensisPositive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
phosphorus · yield · Leymus chinensisResults agree
1 paper in the same direction as this paper
- positive
potassium · yield · Leymus chinensisResults agree
2 papers in the same direction as this paper
- positive
- positive
nitrogen · yield · Leymus chinensisResults agree
13 papers in the same direction as this paper
- positive
- positive
- positive
10 papers more in this group
See all 14 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.