Claim · model-written summary
Increasing nitrate rates produced no significant variation in tobacco yield.
- Taxon
- flue-cured tobaccoe2
- Treatment
- increasing of nitrate ratese1
- Outcome
- yielde0
- Direction
- no significant variatione0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Verbatim
e0“no significant variation was found in yield”
e1“With the increasing of nitrate rates”
e2“flue-cured tobacco(Nicotiana Tabacum L.)”
Title
Effects of Irrigation and Nitrogen Source on Nutrition and Yield and Quality of Flue-cured Tobacco
Yaofu Wang; Yang Tian He'nan nongye daxue xuebao 2006
Other claims from this paper (13)
- Intervention effect Irrigation significantly increased leaf K content.
- Intervention effect Irrigation decreased leaf Fe and Mn content.
- Intervention effect Increasing the nitrate and ammonium proportion increased tobacco leaf K content.
- Intervention effect Increasing the nitrate and ammonium proportion significantly decreased tobacco leaf Fe content.
- Intervention effect Other leaf element contents did not vary significantly as nitrate and ammonium proportions increased.
- Observation N, P, K, Cu and Zn in tobacco leaves followed a reported order across leaf positions.
- Observation Ca, Mg and Fe showed the opposite positional distribution in tobacco leaves.
- Intervention effect Irrigation and nitrogen source did not change the nutrient distribution across tobacco leaf positions.
- Intervention effect Increasing nitrate rates significantly increased the high quality leaf ratio.
- Intervention effect Increasing nitrate rates significantly increased total nitrogen content in cured leaves.
- Intervention effect Increasing nitrate rates tended to decrease nicotine and reducing sugar in cured tobacco leaves.
- Intervention effect Irrigation improved flue-cured tobacco yield in dry land.
- Intervention effect Irrigation improved the high quality leaf ratio of flue-cured tobacco in dry land.