Claim · model-written summary
Soil application of humic acid significantly increased chemical composition of sweet potato tuber roots.
- Taxon
- sweet potato
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Ipomoea batatase0 - Material
- Beaure Garde0
- Treatment
- this application methode5
- Outcome
- chemical composition of tuber rootse5
- Direction
- increasede5
- Comparator
- controle6
Not reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
e0“Two field experiments were conducted on sweet potato (Ipomoea batatas L.) cv. Beaure Gard at the Horticulture Research Farm of El-Bramoon, El-Dakahlia Governorate, during the two successive summer seasons of 2007 and 2008”
e5“Besides, this application method significantly increased chemical composition of tuber roots and reduced the weight loss and decay percentages”
e6“application methods of humic acid (control, foliar spray, transplant treatment and soil application)”
Title
U. Saif El-Deen; A. Ezzat; A. El-Morsy Journal of Plant Production 2011. doi:10.21608/jpp.2011.85460
Other claims from this paper (15)
- Intervention effect Increasing phosphorus from 15 to 45 kg P2O5/fed increased main stem length, canopy dry weight and leaf area of sweet potato.
- Intervention effect Increasing phosphorus from 15 to 45 kg P2O5/fed increased total chlorophyll and carotenoids of sweet potato.
- Intervention effect Increasing phosphorus from 15 to 45 kg P2O5/fed increased total and marketable yield of sweet potato.
- Intervention effect Increasing phosphorus from 15 to 45 kg P2O5/fed increased dry matter percentage, tuber root weight and tuber root diameter of sweet potato.
- Intervention effect Phosphorus at 45 kg P2O5/fed increased N, P and K in sweet potato tuber roots.
- Intervention effect Phosphorus at 45 kg P2O5/fed increased carbohydrate and total sugars in sweet potato tuber roots.
- Intervention effect The 45 kg P2O5/fed phosphorus rate enhanced storability of sweet potato tubers.
- Intervention effect The 45 kg P2O5/fed phosphorus rate reduced decay percentage of sweet potato tubers.
- Intervention effect Soil application of humic acid increased plant growth characters, photosynthetic pigments, total and marketable yield of sweet potato compared with the control.
- Intervention effect Soil application of humic acid increased tuber root quality of sweet potato compared with the control.
- Intervention effect Soil application of humic acid reduced weight loss and decay percentages of stored sweet potato tubers.
- Intervention effect The combined P-rate and humic acid application were more effective on most studied parameters of sweet potato than single treatments.
- Intervention effect The best results for sweet potato were obtained with 30 kg P2O5/fed and soil application of humic acid.
- Recommendation The authors recommend the combination of 30 kg P2O5/fed with soil-applied humic acid for raising sweet potato yield and improving tuber root quality.
- Intervention effect The 30 kg P2O5/fed with soil-applied humic acid treatment reduced the need for chemical P-fertilizer by about 33.3%.