Abstract
The present study is carried out under field conditions on a clay soil at the Experimental Farm of the Faculty of Agric. Mansoura Univ. during the winter season of 2012/2013 to study the combined effect of compost rice straw and bio fertilizers in the presence of ( Indole acetic acid ,Fulvic acid ,and Gibberellic acid) as foliar amendments on plant growth and tuber yield and quality of potato (Solanum tuberosum, L.) as well as chlorophyll content in the leaves, N, P and K concentrations in the leaves and tubers in addition to starch, Total soluble solids and nitrate content in tubers. Nine treatments were arranged in complete randomized block design with 3 replicates as follows; 1- Compost rice straw (CRS), 2- (CRS) + Indole acetic acid (IAA), 3- CRS+ Fulvic acid (F.A) , 4- CRS + Gibberellic acid (G.A). 5- (CRS) + Mixture of Azotobacter chrococcum and Bacillus circulans (Mix), 6- (CRS) + (Mix) + (IAA), 7-(CRS) + (Mix) + (F.A), 8-(CRS) + (Mix) + (G.A). Also, the recommended doses of N, P and K fertilizers for potato were put in consideration as a control treatment. Thus, the total numbers of treatment are 9 treatments. The obtained results can be summarized as follow: Spraying of foliar amendments either in a single form or in combination with bio fertilization led to a positive effect on the growth and yield of potato tuber. Fulvic acid were more effective for all the studied traits than other foliar amendments. The highest level of nitrate and trace elements were detected in potato tubers produced from the plants treated with the recommended of N, P and K fertilizers (control). While the lowest level produced from plants treated with fulvic acid+ the mix of bio fertilizers +CRS. Inoculation of potato tubers with the mixture of multi strains inoculants in combination with the studied foliar amendments and CRS gave a higher magnitude of plant growth, chemical composition, yield and its components as well as quality parameters of potato tuber. The results ensure the importance of partial replacement of chemical NPK fertilizers by the use of bio and organic ones in producing potatoes. Its application would reduce the consumption of chemical fertilizers which in turn reduce the production costs as well as decrease nitrate content in the tubers besides, saving the environment from chemical pollution.
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Claims 6
Claim · model-written summary
Foliar amendments alone or with biofertilization positively affected potato growth and tuber yield.
- Taxon
- potato
Solanum tuberosume0 - Treatment
- Spraying of foliar amendments either in a single form or in combination with bio fertilizatione0
- Outcome
- growth and yield of potato tubere0
- Direction
- positive effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spraying of foliar amendments either in a single form or in combination with bio fertilization led to a positive effect on the growth and yield of potato tuber.”
Claim · model-written summary
Fulvic acid was more effective than other foliar amendments across studied traits.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Fulvic acide0
- Outcome
- all the studied traitse0
- Direction
- more effectivee0
- Comparator
- other foliar amendmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fulvic acid were more effective for all the studied traits than other foliar amendments.”
t0“POTATO PRODUCTION”
Claim · model-written summary
Recommended N, P and K fertilizers produced the highest nitrate and trace element levels in potato tubers.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- recommended of N, P and K fertilizerse0
- Outcome
- highest level of nitrate and trace elementse0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest level of nitrate and trace elements were detected in potato tubers produced from the plants treated with the recommended of N, P and K fertilizers (control).”
Claim · model-written summary
Fulvic acid, mixed biofertilizers and compost rice straw produced the lowest nitrate and trace element levels in potato tubers.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- fulvic acid+ the mix of bio fertilizers +CRSe0
- Outcome
- lowest levele0
- Direction
- loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“While the lowest level produced from plants treated with fulvic acid+ the mix of bio fertilizers +CRS.”
t0“POTATO PRODUCTION”
Claim · model-written summary
Combined inoculants, foliar amendments and compost rice straw increased potato growth, composition, yield and quality.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- Inoculation of potato tubers with the mixture of multi strains inoculants in combination with the studied foliar amendments and CRSe0
- Outcome
- plant growth, chemical composition, yield and its components as well as quality parameters of potato tubere0
- Direction
- higher magnitudee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculation of potato tubers with the mixture of multi strains inoculants in combination with the studied foliar amendments and CRS gave a higher magnitude of plant growth, chemical composition, yield and its components as well as quality parameters of potato tuber.”
Claim · model-written summary
The authors recommended partial replacement of chemical NPK fertilizers by bio and organic fertilizers for potato production.
- Taxon
- potatoesSolanum tuberosume0
- Outcome
- partial replacement of chemical NPK fertilizers by the use of bio and organic onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results ensure the importance of partial replacement of chemical NPK fertilizers by the use of bio and organic ones in producing potatoes.”
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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.