Abstract
ABSTRACTThe infertility of sandy soil hampers the growth of many crops. Typically, chemical fertilizers are used to handle this issue, but they are expensive and have deleterious implications on the ecosystem. A two-year field investigation was carried out on cowpea cultivated in sandy soil to assess the effects of different watering levels (70, 80, 90, and 100% of the actual irrigation requirements), chemical fertilizers, organic fertilizers, and biofertilizer (Bradyrhizobium sp.), and their combinations on the morpho-physiological traits and yield of cowpea (Vigna unguiculata L. Walp, cv. Giza 18). Overall, the findings showed that cowpea osmoregulatory molecules (sugars, proteins, and proline) demonstrated greater accumulation, with the content depending on the watering level. The applied fertilizers demonstrated improved cowpea performance at the regular watering level, with chopped potato tops outperforming other fertilizer formulations. Furthermore, the combination of water stress treatments and fertilizer formulations was impactful in relieving the detrimental consequences of water stress as it enhanced plant growth performance, production efficiency, metabolic homeostasis, nutritional value, and mineral ions composition. Subsequently, our results demonstrated agro-wastes, particularly chopped potato tops, could be an effective substitute for chemical fertilizers in sandy soils to sustainably increase soil fertility as well as cowpea yield performance.
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Claims 12
Claim · model-written summary
Cowpea sugars accumulated more, depending on watering level.
- Taxon
- cowpea
Vigna unguiculatae0 - Treatment
- watering levele0
- Outcome
- sugarse0
- Direction
- greater accumulatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“cowpea osmoregulatory molecules (sugars, proteins, and proline) demonstrated greater accumulation, with the content depending on the watering level.”
Claim · model-written summary
Cowpea proteins accumulated more, depending on watering level.
- Taxon
- cowpea
Vigna unguiculatae0 - Treatment
- watering levele0
- Outcome
- proteinse0
- Direction
- greater accumulatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“cowpea osmoregulatory molecules (sugars, proteins, and proline) demonstrated greater accumulation, with the content depending on the watering level.”
Claim · model-written summary
Cowpea proline accumulated more, depending on watering level.
- Taxon
- cowpea
Vigna unguiculatae0 - Treatment
- watering levele0
- Outcome
- prolinee0
- Direction
- greater accumulatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“cowpea osmoregulatory molecules (sugars, proteins, and proline) demonstrated greater accumulation, with the content depending on the watering level.”
Claim · model-written summary
Applied fertilizers improved cowpea performance at regular watering.
- Taxon
- cowpea
Vigna unguiculatae0 - Treatment
- applied fertilizerse0
- Outcome
- cowpea performancee0
- Direction
- improvede0
- Qualifier
- regular watering levele0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The applied fertilizers demonstrated improved cowpea performance at the regular watering level”
Claim · model-written summary
Chopped potato tops outperformed other fertilizer formulations.
- Taxon
- cowpea
Vigna unguiculatae1 - Treatment
- chopped potato topse0
- Outcome
- outperforminge0
- Direction
- outperforminge0
- Comparator
- other fertilizer formulationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“with chopped potato tops outperforming other fertilizer formulations.”
e1“improved cowpea performance at the regular watering level”
Claim · model-written summary
Fertilizer formulations under water stress improved cowpea growth performance.
- Taxon
- cowpea
Vigna unguiculatae1 - Treatment
- combination of water stress treatments and fertilizer formulationse0
- Outcome
- plant growth performancee0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the combination of water stress treatments and fertilizer formulations was impactful in relieving the detrimental consequences of water stress as it enhanced plant growth performance, production efficiency, metabolic homeostasis, nutritional value, and mineral ions composition.”
e1“yield of cowpea”
Claim · model-written summary
Combined water stress and fertilizer treatments enhanced production efficiency.
- Taxon
- cowpea
Vigna unguiculatae1 - Treatment
- combination of water stress treatments and fertilizer formulationse0
- Outcome
- production efficiencye0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the combination of water stress treatments and fertilizer formulations was impactful in relieving the detrimental consequences of water stress as it enhanced plant growth performance, production efficiency, metabolic homeostasis, nutritional value, and mineral ions composition.”
e1“yield of cowpea”
Claim · model-written summary
Combined water stress and fertilizer treatments enhanced metabolic homeostasis.
- Taxon
- cowpea
Vigna unguiculatae1 - Treatment
- combination of water stress treatments and fertilizer formulationse0
- Outcome
- metabolic homeostasise0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the combination of water stress treatments and fertilizer formulations was impactful in relieving the detrimental consequences of water stress as it enhanced plant growth performance, production efficiency, metabolic homeostasis, nutritional value, and mineral ions composition.”
e1“yield of cowpea”
Claim · model-written summary
Combined water stress and fertilizer treatments enhanced nutritional value.
- Taxon
- cowpea
Vigna unguiculatae1 - Treatment
- combination of water stress treatments and fertilizer formulationse0
- Outcome
- nutritional valuee0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the combination of water stress treatments and fertilizer formulations was impactful in relieving the detrimental consequences of water stress as it enhanced plant growth performance, production efficiency, metabolic homeostasis, nutritional value, and mineral ions composition.”
e1“yield of cowpea”
Claim · model-written summary
Combined water stress and fertilizer treatments enhanced mineral ion composition.
- Taxon
- cowpea
Vigna unguiculatae1 - Treatment
- combination of water stress treatments and fertilizer formulationse0
- Outcome
- mineral ions compositione0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the combination of water stress treatments and fertilizer formulations was impactful in relieving the detrimental consequences of water stress as it enhanced plant growth performance, production efficiency, metabolic homeostasis, nutritional value, and mineral ions composition.”
e1“yield of cowpea”
Claim · model-written summary
The authors propose chopped potato tops as a substitute for chemical fertilizer to raise soil fertility.
- Taxon
- cowpea
Vigna unguiculatae0 - Treatment
- chopped potato topse0
- Outcome
- substitute for chemical fertilizers in sandy soils to sustainably increase soil fertilitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“agro-wastes, particularly chopped potato tops, could be an effective substitute for chemical fertilizers in sandy soils to sustainably increase soil fertility as well as cowpea yield performance.”
Claim · model-written summary
The authors propose chopped potato tops as a substitute for chemical fertilizer to improve cowpea yield.
- Taxon
- cowpea
Vigna unguiculatae0 - Treatment
- chopped potato topse0
- Outcome
- cowpea yield performancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“agro-wastes, particularly chopped potato tops, could be an effective substitute for chemical fertilizers in sandy soils to sustainably increase soil fertility as well as cowpea yield performance.”
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