Abstract
Two field experiments were carried out during 2016 and 2017 summer seasons in Randomized Complete Block Design (RCBD) with five replicates under the ecological conditions of Noubaria District, Beheira Governorate, Egypt to evaluate the applicability potential of Bradyrhizobium and humic substances fertigation for improving soil fertility and productivity of peanut grown on a dripirrigated sandy soil compared to compost and mineral fertilizers applications. Physicochemical analysis revealed the high nutrients content of humic substances as well as their nano-sized diameter and abundance of active functional groups. Organic inputs (compost in particular) improved water retention and the lateral water movement in the rhizosphere compared to the prevalence of gravitydominated vertical movement in the mineral fertigation treatment. Compost application recorded the highest soil organic matter content, which decreased soil pH value. However, Bradyrhizobium and humic substances fertigation exhibited the highest concentrations of available nutrients (N, P and K) and nodulation parameters (nodules number and their dry weight) compared to compost and mineral fertilizers. Although mineral fertigation induced the highest vegetative growth characters, Bradyrhizobium and humic substances fertigation elicited the highest quantitative and qualitative yield indices. The current study, provides insights into the potential fertigation of N-fixing bacteria alongside with humic substances for maximizing water and nutrient supply potentials of drip-irrigated sandy soils.
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Claims 6
Claim · model-written summary
Organic inputs, compost in particular, improved water retention and lateral water movement in the peanut rhizosphere compared with mineral fertigation.
- Taxon
- peanut
Arachis hypogaeat0 - Treatment
- Organic inputs (compost in particular)e0
- Outcome
- water retention and the lateral water movemente0
- Direction
- improvede0
- Comparator
- mineral fertigation treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Organic inputs (compost in particular) improved water retention and the lateral water movement in the rhizosphere compared to the prevalence of gravitydominated vertical movement in the mineral fertigation treatment”
t0“peanut (Arachishypogaea L.)”
Claim · model-written summary
Compost application recorded the highest soil organic matter content in the peanut field.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- Compost applicatione0
- Outcome
- soil organic matter contente0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compost application recorded the highest soil organic matter content”
t0“peanut (Arachishypogaea L.)”
Claim · model-written summary
Compost application decreased soil pH value.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- Compost applicatione0
- Outcome
- soil pH valuee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compost application recorded the highest soil organic matter content, which decreased soil pH value”
t0“peanut (Arachishypogaea L.)”
Claim · model-written summary
Bradyrhizobium and humic substances fertigation gave the highest nodulation parameters (nodule number and dry weight) compared with compost and mineral fertilizers.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- Bradyrhizobium and humic substances fertigatione0
- Interactor
- Bradyrhizobium
Bradyrhizobiume0symbiont - Outcome
- nodulation parameters (nodules number and their dry weight)e0
- Direction
- higheste0
- Comparator
- compost and mineral fertilizerse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bradyrhizobium and humic substances fertigation exhibited the highest concentrations of available nutrients (N, P and K) and nodulation parameters (nodules number and their dry weight) compared to compost and mineral fertilizers”
t0“peanut (Arachishypogaea L.)”
Claim · model-written summary
Mineral fertigation induced the highest vegetative growth characters in peanut.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- mineral fertigatione0
- Outcome
- vegetative growth characterse0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Although mineral fertigation induced the highest vegetative growth characters”
t0“peanut (Arachishypogaea L.)”
Claim · model-written summary
Bradyrhizobium and humic substances fertigation elicited the highest quantitative and qualitative yield indices in peanut.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- Bradyrhizobium and humic substances fertigatione0
- Interactor
- BradyrhizobiumBradyrhizobiume0symbiont
- Outcome
- quantitative and qualitative yield indicese0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bradyrhizobium and humic substances fertigation elicited the highest quantitative and qualitative yield indices”
t0“peanut (Arachishypogaea L.)”
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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.