Abstract
Sprinkler irrigation is an effective method for protecting economic crops from frost damage; however, current research on its impacts is insufficient and lacks comprehensive evaluation. This research investigated the effects of sprinkler irrigation for frost protection on the air, soil, and tea plants in the tea garden. Sprinkler frost protection experiments were conducted in the tea garden, where temperature sensors measured the air and soil temperatures, and Monitoring-PAM was used to measure the chlorophyll fluorescence parameters (Fv/Fm) of the tea plants. The results indicated that lower initial ambient temperatures or smaller droplet sizes accelerate the rate of air temperature increase and slow the cooling rate. Under conditions of heavy frost, ice formation from irrigation water acts as an insulating layer, protecting the inter-row soil. Additionally, the Fv/Fm values of tea leaves protected by sprinkler irrigation ranged from 0.6 to 0.7, and were significantly higher than those of leaves exposed to frost damage. The results also showed that air and soil temperature and tea Fv/Fm can be used to perform a comprehensive assessment of sprinkler frost protection effectiveness.
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Claims 5
Claim · model-written summary
Smaller droplet sizes accelerated the rate of air temperature increase and slowed the cooling rate in sprinkler frost protection.
- Taxon
- Tea Plantst0
- Treatment
- smaller droplet sizese0
- Outcome
- rate of air temperature increasee0
- Direction
- acceleratee0
- Qualifier
- slow the cooling ratee0
Not reportedComparator
Verbatim
t0“Tea Plants”
e0“lower initial ambient temperatures or smaller droplet sizes accelerate the rate of air temperature increase and slow the cooling rate”
Claim · model-written summary
Lower initial ambient temperatures accelerated the rate of air temperature increase and slowed the cooling rate in sprinkler frost protection.
Verbatim
t0“Tea Plants”
e0“lower initial ambient temperatures or smaller droplet sizes accelerate the rate of air temperature increase and slow the cooling rate”
Claim · model-written summary
Under heavy frost, ice formed from irrigation water acts as an insulating layer protecting the inter-row soil.
Verbatim
t0“Tea Plants”
e0“Under conditions of heavy frost, ice formation from irrigation water acts as an insulating layer, protecting the inter-row soil”
Claim · model-written summary
Fv/Fm of tea leaves protected by sprinkler irrigation ranged from 0.6 to 0.7 and was significantly higher than that of leaves exposed to frost damage.
Verbatim
t0“Tea Plants”
e0“the Fv/Fm values of tea leaves protected by sprinkler irrigation ranged from 0.6 to 0.7, and were significantly higher than those of leaves exposed to frost damage”
Claim · model-written summary
The authors conclude that air and soil temperature and tea Fv/Fm can be used to comprehensively assess sprinkler frost protection effectiveness.
Verbatim
t0“Tea Plants”
e0“air and soil temperature and tea Fv/Fm can be used to perform a comprehensive assessment of sprinkler frost protection effectiveness”
The same questions in other papers
irrigation · physiology: photosynthesis · Camellia sinensis (black tea)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.