Abstract
Water stress in Egypt is expected to further increase in the future as a result of climate change and rapid population growth that impact of crop production and soil properties. To evaluate and reduce the impact of water stress, two field experiments were conducted at Shandaweel Agricultural Research Station, Sohag Governorate, Egypt in 2020/2021 and 2021/2022 seasons under normal irrigation and water stress and different rates of K-fertilization combined with silicate and chitosan addition. The sugarcane cultivar (Giza-4) “Saccharum sp L.” was applied as a planting material. A randomized complete block design (RCBD) was used as a split-split plot arrangement with three replicated. The results explained that water stress had a significant effect on all studied traits of sugarcane. Normal irrigation improved height, diameter stalk, number of millable canes/fed, brix%, sucrose% and sugar recovery% as well as cane and sugar yields/fed in both seasons. Moreover, increasing K-level to 48 kg K2O/fed resulted in a significant increase in all studied traits of sugarcane in both seasons. As well as the results indicated that the application of silicone + nano chitosan had positive effects on height and diameter stalk, number of millable canes/fed, brix%, sucrose% and sugar recovery% as well as cane and sugar yields/fed in both seasons reached to 90.2% under water stress compared with the production under normal irrigation. In addition, soil salinity (EC) and soil pH were generally decrease with treatments application meanwhile all other soil studied parameters (cations, anions and available NPK) were increase compared with control. Thus, it was found that, supplying sugarcane with a combination of both 48 kg K2O/fed and (silicon + nano chitosan) application can be recommended to adapt and reduce the negative impact of water stress on soil and crop production and get the economical cane and sugar yields, as well as the best quality traits of sugarcane crop.
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Claims 10
Claim · model-written summary
Normal irrigation improved sugarcane growth traits
Verbatim
e0“Normal irrigation improved height, diameter stalk, number of millable canes/fed, brix%, sucrose% and sugar recovery% as well as cane and sugar yields/fed in both seasons.”
t0“sugarcane”
e1“under normal irrigation and water stress”
Claim · model-written summary
Normal irrigation improved sugarcane quality traits
Verbatim
e0“Normal irrigation improved height, diameter stalk, number of millable canes/fed, brix%, sucrose% and sugar recovery% as well as cane and sugar yields/fed in both seasons.”
t0“sugarcane”
e1“under normal irrigation and water stress”
Claim · model-written summary
Normal irrigation improved cane and sugar yields
Verbatim
e0“Normal irrigation improved height, diameter stalk, number of millable canes/fed, brix%, sucrose% and sugar recovery% as well as cane and sugar yields/fed in both seasons.”
t0“sugarcane”
e1“under normal irrigation and water stress”
Claim · model-written summary
Increasing potassium to 48 kg K2O/fed significantly increased all studied sugarcane traits in both seasons.
Not reportedComparatorSetting
Verbatim
e0“increasing K-level to 48 kg K2O/fed resulted in a significant increase in all studied traits of sugarcane in both seasons.”
Claim · model-written summary
Silicone plus nano chitosan positively affected sugarcane growth traits in both seasons under water stress.
- Taxon
- sugarcanet0
- Treatment
- silicone + nano chitosane0
- Outcome
- height and diameter stalk, number of millable canes/fede0
- Direction
- positive effectse0
- Comparator
- production under normal irrigatione0
Not reportedValue
Verbatim
e0“the application of silicone + nano chitosan had positive effects on height and diameter stalk, number of millable canes/fed, brix%, sucrose% and sugar recovery% as well as cane and sugar yields/fed in both seasons reached to 90.2% under water stress compared with the production under normal irrigation.”
t0“sugarcane”
Claim · model-written summary
Silicone plus nano chitosan positively affected sugarcane quality traits in both seasons under water stress.
- Taxon
- sugarcanet0
- Treatment
- silicone + nano chitosane0
- Outcome
- brix%, sucrose% and sugar recovery%e0
- Direction
- positive effectse0
- Comparator
- production under normal irrigatione0
Not reportedValue
Verbatim
e0“the application of silicone + nano chitosan had positive effects on height and diameter stalk, number of millable canes/fed, brix%, sucrose% and sugar recovery% as well as cane and sugar yields/fed in both seasons reached to 90.2% under water stress compared with the production under normal irrigation.”
t0“sugarcane”
Claim · model-written summary
Silicone plus nano chitosan positively affected sugarcane cane and sugar yields in both seasons under water stress.
Verbatim
e0“the application of silicone + nano chitosan had positive effects on height and diameter stalk, number of millable canes/fed, brix%, sucrose% and sugar recovery% as well as cane and sugar yields/fed in both seasons reached to 90.2% under water stress compared with the production under normal irrigation.”
t0“sugarcane”
Claim · model-written summary
The treatments generally decreased soil salinity and pH compared with control.
- Treatment
- treatments applicatione0
- Outcome
- soil salinity (EC) and soil pHe0
- Direction
- decreasee0
- Comparator
- controle0
Not reportedTaxon
Verbatim
e0“soil salinity (EC) and soil pH were generally decrease with treatments application meanwhile all other soil studied parameters (cations, anions and available NPK) were increase compared with control.”
Claim · model-written summary
The treatments increased soil cations, anions and available NPK compared with control.
- Treatment
- treatments applicatione0
- Outcome
- cations, anions and available NPKe0
- Direction
- increasee0
- Comparator
- controle0
Not reportedTaxon
Verbatim
e0“soil salinity (EC) and soil pH were generally decrease with treatments application meanwhile all other soil studied parameters (cations, anions and available NPK) were increase compared with control.”
Claim · model-written summary
The authors recommend 48 kg K2O/fed with silicon and nano chitosan to mitigate water stress and obtain economical yields and quality.
Verbatim
e0“supplying sugarcane with a combination of both 48 kg K2O/fed and (silicon + nano chitosan) application can be recommended to adapt and reduce the negative impact of water stress on soil and crop production and get the economical cane and sugar yields, as well as the best quality traits of sugarcane crop.”
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