Abstract
Two field experiments were conducted during winter seasons of 2014/2015 and 2015/2016at Sahl El-Hossinia Agric. Res. Station, El-Sharkia – Governorate, Egypt to evaluate the effect of humic acid, compost tea and bio-fertilizer using two methods of application (foliar and soaking) on some chemical and physical soil properties and Egyptian clover (TrifoliumalexandrinumL.) var. Meskawy productivity under saline soil conditions. The soil pH and EC values decreased due to different treatments using soaking or foliar application.The lowest value of EC in soil reached (4.61 dSm-1)by applying humic acid as foliar application.The soil content of O.M increased in caseof bio-fertilizer, humic acid and compost tea compared with control using soaking or foliar application, however, a high increase was attained by humic acid foliar application.The CEC (cmolkg-1) valuewas affected by different fertilizer sources using soaking or foliar application. The high mean value of CEC was 41.42cmolkg-1in case of humic acid foliar application compared with other treatments and control. The highest values of field capacity and available water were found in case of humic acid foliar application compared to other treatments and control using soaking or foliar application. The values of soil bulk density of soil profiles treated by all treatments were relatively low compared to those of control, whereas the maximum decrease exists in soil treated byhumic acid foliar application compared to other treatments and control using soaking or foliar application. Adding humic acid as foliar application increased the soil total porosity values compared to other treatments and control. Data showed that the values of drainable pores (DP) and water holding pores (WHP) were higher than the other pores in different treatments. The highest diameters of dry aggregates were affected by humic acid foliar application compared to other treatments and control. The high values of total stable aggregates were observed incase of humic acid foliar application. Applying bio-fertilizer; humic acid and compost tea on seeds using soaking or foliar application increases significantly the clover yield and yield components except the interaction between treatments and methods of application. Humic acid with foliar application gave the highest values of Egyptian clover yield and yield components as compared by other treatments. The obtained data indicate that the Egyptian clover yield was clearly affected by all treatments under saline soil conditions. The beneficial effects of all treatments compared with control using soaking or foliar application on Egyptian clover yield could be arranged as follows according to the increases in dry yield (ton/fed)of clover: Humic acid > compost tea> Bio-fertilizer > control, for soaked application and humic acid > Bio-fertilizer > compost tea > control, for foliar application.
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Claims 18
Claim · model-written summary
Different treatments decreased soil pH and EC under soaking or foliar application.
Not reportedTaxonComparator
Verbatim
e0“The soil pH and EC values decreased due to different treatments using soaking or foliar application.”
Claim · model-written summary
Foliar humic acid produced the lowest soil EC, 4.61 dSm-1.
Not reportedTaxonComparator
Verbatim
e0“The lowest value of EC in soil reached (4.61 dSm-1)by applying humic acid as foliar application.”
Claim · model-written summary
Bio-fertilizer increased soil organic matter compared with control under soaking or foliar application.
Not reportedTaxon
Verbatim
e0“The soil content of O.M increased in caseof bio-fertilizer, humic acid and compost tea compared with control using soaking or foliar application”
Claim · model-written summary
Humic acid increased soil organic matter compared with control, particularly with foliar application.
- Treatment
- humic acide0
- Outcome
- soil content of O.Me0
- Direction
- increasede0
- Qualifier
- a high increase was attained by humic acid foliar applicatione0
- Comparator
- controle0
Not reportedTaxon
Verbatim
e0“The soil content of O.M increased in caseof bio-fertilizer, humic acid and compost tea compared with control using soaking or foliar application, however, a high increase was attained by humic acid foliar application.”
Claim · model-written summary
Compost tea increased soil organic matter compared with control under soaking or foliar application.
Not reportedTaxon
Verbatim
e0“The soil content of O.M increased in caseof bio-fertilizer, humic acid and compost tea compared with control using soaking or foliar application”
Claim · model-written summary
Foliar humic acid gave a high mean CEC of 41.42cmolkg-1 compared with other treatments and control.
- Treatment
- humic acid foliar applicatione0
- Outcome
- CECe0
- Direction
- highe0
- Value
- 41.42cmolkg-1e0
- Comparator
- other treatments and controle0
Not reportedTaxon
Verbatim
e0“The high mean value of CEC was 41.42cmolkg-1in case of humic acid foliar application compared with other treatments and control.”
Claim · model-written summary
Foliar humic acid gave the highest field capacity and available water relative to other treatments and control.
- Treatment
- humic acid foliar applicatione0
- Outcome
- field capacity and available watere0
- Direction
- higheste0
- Comparator
- other treatments and controle0
Not reportedTaxon
Verbatim
e0“The highest values of field capacity and available water were found in case of humic acid foliar application compared to other treatments and control using soaking or foliar application.”
Claim · model-written summary
All treatments lowered soil bulk density relative to control, with the maximum decrease under foliar humic acid.
- Treatment
- all treatmentse0
- Outcome
- soil bulk densitye0
- Direction
- relatively lowe0
- Qualifier
- the maximum decrease exists in soil treated byhumic acid foliar applicatione0
- Comparator
- controle0
Not reportedTaxon
Verbatim
e0“The values of soil bulk density of soil profiles treated by all treatments were relatively low compared to those of control, whereas the maximum decrease exists in soil treated byhumic acid foliar application compared to other treatments and control using soaking or foliar application.”
Claim · model-written summary
Foliar humic acid increased soil total porosity relative to other treatments and control.
- Treatment
- humic acid as foliar applicatione0
- Outcome
- soil total porosity valuese0
- Direction
- increasede0
- Comparator
- other treatments and controle0
Not reportedTaxon
Verbatim
e0“Adding humic acid as foliar application increased the soil total porosity values compared to other treatments and control.”
Claim · model-written summary
Drainable and water holding pores had higher values than other pores across treatments.
Not reportedTaxon
Verbatim
e0“Data showed that the values of drainable pores (DP) and water holding pores (WHP) were higher than the other pores in different treatments.”
Claim · model-written summary
Foliar humic acid affected the highest dry aggregate diameters compared with other treatments and control.
- Treatment
- humic acid foliar applicatione0
- Outcome
- diameters of dry aggregatese0
- Direction
- higheste0
- Comparator
- other treatments and controle0
Not reportedTaxon
Verbatim
e0“The highest diameters of dry aggregates were affected by humic acid foliar application compared to other treatments and control.”
Claim · model-written summary
Foliar humic acid produced high total stable aggregate values.
Not reportedTaxonComparator
Verbatim
e0“The high values of total stable aggregates were observed incase of humic acid foliar application.”
Claim · model-written summary
Bio-fertilizer significantly increased clover yield and yield components with soaking or foliar application, except for the treatment-by-method interaction.
- Treatment
- bio-fertilizere0
- Outcome
- clover yield and yield componentse0
- Direction
- increasese0
- Qualifier
- except the interaction between treatments and methods of applicatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Applying bio-fertilizer; humic acid and compost tea on seeds using soaking or foliar application increases significantly the clover yield and yield components except the interaction between treatments and methods of application.”
Claim · model-written summary
Humic acid significantly increased clover yield and yield components with soaking or foliar application, except for the treatment-by-method interaction.
- Treatment
- humic acide0
- Outcome
- clover yield and yield componentse0
- Direction
- increasese0
- Qualifier
- except the interaction between treatments and methods of applicatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Applying bio-fertilizer; humic acid and compost tea on seeds using soaking or foliar application increases significantly the clover yield and yield components except the interaction between treatments and methods of application.”
Claim · model-written summary
Compost tea significantly increased clover yield and yield components with soaking or foliar application, except for the treatment-by-method interaction.
- Treatment
- compost teae0
- Outcome
- clover yield and yield componentse0
- Direction
- increasese0
- Qualifier
- except the interaction between treatments and methods of applicatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Applying bio-fertilizer; humic acid and compost tea on seeds using soaking or foliar application increases significantly the clover yield and yield components except the interaction between treatments and methods of application.”
Claim · model-written summary
Foliar humic acid gave the highest Egyptian clover yield and yield components compared with other treatments.
Verbatim
e0“Humic acid with foliar application gave the highest values of Egyptian clover yield and yield components as compared by other treatments.”
Claim · model-written summary
Soaked treatments ranked humic acid above compost tea, bio-fertilizer and control for clover dry yield.
- Outcome
- dry yielde0
- Direction
- increasese0
- Qualifier
- Humic acid > compost tea> Bio-fertilizer > control, for soaked applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“according to the increases in dry yield (ton/fed)of clover: Humic acid > compost tea> Bio-fertilizer > control, for soaked application”
Claim · model-written summary
Foliar treatments ranked humic acid above bio-fertilizer, compost tea and control for clover dry yield.
- Outcome
- dry yielde0
- Direction
- increasese0
- Qualifier
- humic acid > Bio-fertilizer > compost tea > control, for foliar applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“according to the increases in dry yield (ton/fed)of clover: Humic acid > compost tea> Bio-fertilizer > control, for soaked application and humic acid > Bio-fertilizer > compost tea > control, for foliar application.”
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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.