Claim · model-written summary
Increasing nitrogen increased sunflower seed oil and protein percentages except in clay soil.
- Taxon
- SUNFLOWER
Helianthus annuust0 - Treatment
- increasing nitrogen levels additione0
- Outcome
- Seed oil and seed protein percentagee0
- Direction
- increasede0
- Qualifier
- in all soils, except the clay onee0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Seed oil and seed protein percentage were increased with chicken manure than farmyard manure in all soils, except the clay one. Also, they were increased by increasing nitrogen levels addition in all soils, except the clay one where they were decreased at the highest nitrogen doses over than 30 kg Nlfed.”
t0“SUNFLOWER”
Title
I. M. EI-Naggar; E. J. EI-Maddah; M. EI-O. EI-Sodany; et al. Journal of Soil Sciences and Agricultural Engineering /Journal of Soil Sciences and Agricultural Engineering 2002. doi:10.21608/jssae.2002.255586
Other claims from this paper (19)
- Intervention effect Chicken manure increased sunflower dry matter, height and head diameter relative to farmyard manure in all soils.
- Intervention effect Chicken manure increased sunflower seed weight and seed yield relative to farmyard manure in all soils.
- Intervention effect Increasing nitrogen increased sunflower dry matter, height, head diameter, seed weight and yield in all soils.
- Intervention effect Loamy soil with chicken manure and 40 kg Nffed. gave the highest sunflower growth and yield traits.
- Intervention effect Chicken manure increased sunflower seed oil and protein percentages except in clay soil.
- Intervention effect In clay soil, nitrogen doses above 30 kg Nlfed. decreased sunflower seed oil and protein percentages.
- Intervention effect Clay soil with farmyard manure at 30 nitrogen unite had the highest sunflower seed oil percentage.
- Intervention effect Loamy soil with chicken manure at 40 nitrogen unit had the highest sunflower seed protein percentage.
- Intervention effect Chicken manure increased sunflower seed and straw nitrogen percentages relative to farmyard manure, except seed nitrogen in clay soil.
- Intervention effect Raising nitrogen increased sunflower seed and straw nitrogen percentages except in clay soil.
- Intervention effect In clay soil sunflower seed nitrogen decreased beyond 30 kg N/fed.
- Intervention effect Loamy soil with chicken manure at 40 unite nitrogen per feddan gave highest sunflower seed and straw nitrogen percentages.
- Intervention effect Chicken manure increased postharvest available soil nitrogen relative to farmyard manure in all soils.
- Intervention effect Raising nitrogen increased postharvest available soil nitrogen in all soils.
- Intervention effect Loamy soil with chicken manure at 40 unit nitrogen per feddan had highest available soil nitrogen.
- Intervention effect Chicken manure relative to farmyard manure, and increasing nitrogen, decreased bulk density and increased total porosity.
- Intervention effect Fertilization increased hydraulic conductivity in clay and loamy soils but decreased it in sandy and calcareous soils.
- Intervention effect Clay soil with chicken manure at 40 kg N/fed. had lowest bulk density and highest total porosity.
- Intervention effect Clay soil with farmyard manure and zero nitrogen had lowest hydraulic conductivity.