Abstract
A FIELD experiment was carried out during the summer ………season with sesame and the winter season with wheat crops in a sandy soil at the Ismailia Agric. Res. Station. The work aimed to study the role of organic acids in nutrients availability and productivity of both indicated crops. Urea- formaldehyde, rock phosphate, feldspar and acidulation with different organic acids ((humic, fulvic, tartaric, salicylic and oxalic) and mineral acid sulphuric) at two concentrations 10 and 15% (C1) and (C2) were used. Results revealed that acidulation had positive effect on chemical properties as well as availability of soil N, P and K nutrients compared to the control treatments; soil pH decreased especially with C2 which relatively raised soil EC. Also, there was a significant increase in the availability of N, P and K in soil; again, the superiority was with the second concentration. There was a significant response to acidulation compared to the control treatment when assessing yield of each grains or seeds and straw of both wheat and sesame crops, especially when using the second concentration (C2). An increase in the total content of NPK elements with acidulation treatments compared to the control for both wheat and sesame crops was observed. The results also showed high response to salicylic acid compared to other acids while the oxalic acid being inferior. Finally, urea- form, rock phosphate and feldspar (alternative fertilizer) under acidulation with different acids could be a promising approach to enhance release of available N, P and K and to improve soil chemical properties which will be reflected on the yield along with total content of nutrients.
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Claims 8
Claim · model-written summary
Acidulation had a positive effect on soil N, P and K availability compared with control treatments.
- Treatment
- acidulatione1
- Outcome
- availability of soil N, P and K nutrientse1
- Direction
- increaseinferrede1
- Comparator
- control treatmentse1
Not reportedTaxon
Verbatim
e1“acidulation had positive effect on chemical properties as well as availability of soil N, P and K nutrients compared to the control treatments”
e3“there was a significant increase in the availability of N, P and K in soil”
Claim · model-written summary
C2 acidulation decreased soil pH.
Not reportedTaxonComparator
Verbatim
e2“soil pH decreased especially with C2 which relatively raised soil EC”
Claim · model-written summary
C2 acidulation relatively raised soil EC.
Not reportedTaxonComparator
Verbatim
e2“soil pH decreased especially with C2 which relatively raised soil EC”
Claim · model-written summary
Acidulation gave a significant yield response compared with the control treatment in both wheat and sesame crops.
- Taxon
- wheat and sesame crops
Sesamum indicum
Triticum aestivume4 - Treatment
- acidulatione4
- Outcome
- yield of each grains or seeds and strawe4
- Comparator
- control treatmente4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“There was a significant response to acidulation compared to the control treatment when assessing yield of each grains or seeds and straw of both wheat and sesame crops”
e7“the winter season with wheat crops”
Claim · model-written summary
Acidulation increased the total content of NPK elements in wheat and sesame crops compared with the control.
- Taxon
- wheat and sesame cropsSesamum indicumTriticum aestivume5
- Treatment
- acidulation treatmentse5
- Outcome
- total content of NPK elementse5
- Direction
- increasee5
- Comparator
- controle5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“An increase in the total content of NPK elements with acidulation treatments compared to the control for both wheat and sesame crops was observed”
Claim · model-written summary
Salicylic acid gave a high response compared with other acids.
- Taxon
- wheat cropsTriticum aestivume7
- Treatment
- salicylic acide6
- Outcome
- responsee6
- Direction
- highe6
- Comparator
- other acidse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“The results also showed high response to salicylic acid compared to other acids while the oxalic acid being inferior”
e7“the winter season with wheat crops”
Claim · model-written summary
Oxalic acid gave an inferior response compared with other acids.
- Taxon
- wheat cropsTriticum aestivume7
- Treatment
- oxalic acide6
- Outcome
- responsee6
- Direction
- inferiore6
- Comparator
- other acidse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“The results also showed high response to salicylic acid compared to other acids while the oxalic acid being inferior”
e7“the winter season with wheat crops”
Claim · model-written summary
Acidulating alternative fertilizers with different acids could be a promising approach to enhance release of available N, P and K.
- Taxon
- wheat cropsTriticum aestivume7
- Outcome
- release of available N, P and Ke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“could be a promising approach to enhance release of available N, P and K”
e7“the winter season with wheat crops”