Abstract
A three-year-long field experiment was conducted in a continuous grazing system with a variable stocking rate to evaluate effects of increasing NPK fertilization rates (Control- N0P0K0, N60P40K30, and N80P50K40) in crested wheatgrass (Agropyron cristatum) on hay production, some yield components and crude protein concentration in the dry steppe zone of Eastern Kazakhstan. At harvesting, hay production (fresh and dry weight), seeding rate (SER), shrub diameter (SHD), height of generative shoots (HGS), length of root leaves (LRL), weight per bush (WEB), percentage of leaves and vegetative shoots (LVS) and crude protein concentration of crested wheatgrass (Agropyron cristatum) were determined. NPK fertilizer treatments increased hay production, SER, SHD, HGS, LRL, WEB, LVS and crude protein concentration. The results showed that crested wheatgrass at the N80P50K40 treatments achieved a higher hay production and some yield components of crested wheatgrass (Agropyron cristatum) in the dry steppe zone of Eastern Kazakhstan than other NPK treatment and control.
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Claims 5
Claim · model-written summary
NPK fertilization increased hay production in crested wheatgrass.
- Taxon
- crested wheatgrass (Agropyron cristatum)
Agropyron cristatume1 - Treatment
- NPK fertilizer treatmentse0
- Outcome
- hay productione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NPK fertilizer treatments increased hay production, SER, SHD, HGS, LRL, WEB, LVS and crude protein concentration.”
e1“crested wheatgrass (Agropyron cristatum) in the dry steppe zone of Eastern Kazakhstan”
Claim · model-written summary
NPK fertilization increased SER, SHD, and HGS in crested wheatgrass.
- Taxon
- crested wheatgrass (Agropyron cristatum)Agropyron cristatume1
- Treatment
- NPK fertilizer treatmentse0
- Outcome
- SER, SHD, HGSe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NPK fertilizer treatments increased hay production, SER, SHD, HGS, LRL, WEB, LVS and crude protein concentration.”
e1“crested wheatgrass (Agropyron cristatum) in the dry steppe zone of Eastern Kazakhstan”
Claim · model-written summary
NPK fertilization increased LRL, WEB, and LVS in crested wheatgrass.
- Taxon
- crested wheatgrass (Agropyron cristatum)Agropyron cristatume1
- Treatment
- NPK fertilizer treatmentse0
- Outcome
- LRL, WEB, LVSe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NPK fertilizer treatments increased hay production, SER, SHD, HGS, LRL, WEB, LVS and crude protein concentration.”
e1“crested wheatgrass (Agropyron cristatum) in the dry steppe zone of Eastern Kazakhstan”
Claim · model-written summary
NPK fertilization increased crude protein concentration in crested wheatgrass.
- Taxon
- crested wheatgrass (Agropyron cristatum)Agropyron cristatume1
- Treatment
- NPK fertilizer treatmentse0
- Outcome
- crude protein concentratione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NPK fertilizer treatments increased hay production, SER, SHD, HGS, LRL, WEB, LVS and crude protein concentration.”
e1“crested wheatgrass (Agropyron cristatum) in the dry steppe zone of Eastern Kazakhstan”
Claim · model-written summary
N80P50K40 produced higher hay production and yield components than other NPK treatments and the control.
- Taxon
- crested wheatgrass (Agropyron cristatum)Agropyron cristatume0
- Treatment
- N80P50K40e0
- Outcome
- hay production and some yield componentse0
- Direction
- highere0
- Comparator
- other NPK treatment and controle0
- Setting
- dry steppe zone of Eastern Kazakhstane0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“crested wheatgrass at the N80P50K40 treatments achieved a higher hay production and some yield components of crested wheatgrass (Agropyron cristatum) in the dry steppe zone of Eastern Kazakhstan than other NPK treatment and control.”
The same questions in other papers
fertilization · yield · Agropyron cristatum (crested wheatgrass)Results differ
9 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
8 papers more in this group
See all 12 papers →fertilization · growth · Agropyron cristatum (crested wheatgrass)Positive and negative results
1 in the opposite direction
- no effect
fertilization · quality: protein · Agropyron cristatum (crested wheatgrass)Results agree
2 papers in the same direction as this paper
- 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.