Abstract
Two field experiments were conducted during two successive seasons 2006 and 2007 at the experimental farm of Sakha Agric. Rec. Station, Kafer El- Sheikh Government. The aim of this study was to investigate the influence of zinc addition 0, 10, and 20 Kg/ fad. For Zn0(S) (control), Zn10(S), and Zn20(S), respectively or foliar application with or without urea, 2% urea [U(F)], 500 ppm Zn [Zn (F)] and 2% urea + 500 ppm Zn [U+ Zn ( F)], respectively under different levels of phosphorus fertilization 30, 45, and 60 Kg p2o5 for P1, P2, and P3 respectively on maize yield and its chemical composition. Ratherfore soil content of P , Zn , Fe, and Mn. The experiments were conducted in split plot design where P levels were the main plot and Zn treatments as were sub plot with four replicates. The obtained results can be summarized as follows: the yield and its components of maize were significantly affected by P and Zn fertilizer treatments. Application of P3 increased grain yield by 12.0 and 12.5% and biomass by 17.6 and 13.8 compared to control treatment (P1)in 2006 and 2007 seasons. soil application of 10 Kg zn / fad. under P3 level gave the highest value of grain yield in the two seasons. and of the biomass in the first season, meanwhile [U+ Zn(F)] treatment gave the highest biomass value in the second season. While, the highest value of 1000 grain weight were obtained by [Zn0 (s)] and [U+ Zn (F)] treatments in the two seasons. the maximum values of P maize grain content were obtained by Zn20(S) treatment under P3 and P2 in the two seasons respectively. the maximum values of P maize stem content were obtained by [Zn10(s )]and [Zn (F)] treatments under P2 in the two seasons , respectively. the maximum values of zn maize grain content were obtained by [U+ Zn (F)] treatment under P2 level, while [Zn (F)] treatment gave the maximum maize stem zn content under P3 level in the two seasons. the maximum values of maize grain and stem Fe content were obtained by application of [U+ Zn(F)] treatment under P1 level in the two seasons except grain in the first season. The same treatment also gave the maximum values of Mn of maize grain and stem under P3 level except the stem in the first season. Translocation coefficient (TC%) of heavy metal from stem to grain can be arranged in the following decreasing sequence Zn > Mn> Fe. Available P, Fe, and Mn increased by increasing P fertilizer levels from P1 to P3, while available Zn increased by increasing P fertilizer levels from P1 to P2 but at P3 it decreased. [U+ Zn (F)] treatment gave the highest available P, Fe, and Mn, while the highest available Zn was obtained by [Zn20(s)] treatment.
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Claims 17
Claim · model-written summary
P3 phosphorus increased maize grain yield by 12.0 and 12.5% over the control (P1) in 2006 and 2007.
- Treatment
- Application of P3e0
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 12.0 and 12.5%e0
- Comparator
- control treatment (P1)e0
- Setting
- Two field experimentse1
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“MAIZE RESPONSE TO ZINC APPLICATION”
e0“Application of P3 increased grain yield by 12.0 and 12.5% and biomass by 17.6 and 13.8 compared to control treatment (P1)in 2006 and 2007 seasons”
e1“Two field experiments were conducted during two successive seasons 2006 and 2007”
Claim · model-written summary
P3 phosphorus increased maize biomass by 17.6 and 13.8 over the control (P1) in 2006 and 2007.
- Treatment
- Application of P3e0
- Outcome
- biomasse0
- Direction
- increasede0
- Value
- 17.6 and 13.8e0
- Comparator
- control treatment (P1)e0
- Setting
- Two field experimentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“MAIZE RESPONSE TO ZINC APPLICATION”
e0“Application of P3 increased grain yield by 12.0 and 12.5% and biomass by 17.6 and 13.8 compared to control treatment (P1)in 2006 and 2007 seasons”
e1“Two field experiments were conducted during two successive seasons 2006 and 2007”
Claim · model-written summary
Soil application of 10 kg Zn per fad under P3 gave the highest grain yield.
- Treatment
- soil application of 10 Kg zn / fad.e0
- Outcome
- grain yielde0
- Direction
- higheste0
- Qualifier
- under P3 levele0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“MAIZE RESPONSE TO ZINC APPLICATION”
e0“soil application of 10 Kg zn / fad. under P3 level gave the highest value of grain yield in the two seasons”
Claim · model-written summary
Foliar urea plus Zn treatment gave the highest maize biomass in the second season.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“MAIZE RESPONSE TO ZINC APPLICATION”
e0“[U+ Zn(F)] treatment gave the highest biomass value in the second season”
Claim · model-written summary
Zn0(S) and U+Zn(F) treatments gave the highest 1000-grain weight in both seasons.
- Treatment
- [Zn0 (s)] and [U+ Zn (F)]e0
- Outcome
- 1000 grain weighte0
- Direction
- highest valuee0
- Qualifier
- in the two seasonse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“MAIZE RESPONSE TO ZINC APPLICATION”
e0“the highest value of 1000 grain weight were obtained by [Zn0 (s)] and [U+ Zn (F)] treatments in the two seasons”
Claim · model-written summary
Zn20(S) gave the maximum maize grain P content under P3 and P2 in the two seasons.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“MAIZE RESPONSE TO ZINC APPLICATION”
e0“the maximum values of P maize grain content were obtained by Zn20(S) treatment under P3 and P2 in the two seasons respectively”
Claim · model-written summary
Zn10(S) and Zn(F) gave the maximum maize stem P content under P2.
- Treatment
- [Zn10(s )]and [Zn (F)]e0
- Outcome
- P maize stem contente0
- Direction
- maximum valuese0
- Qualifier
- under P2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“MAIZE RESPONSE TO ZINC APPLICATION”
e0“the maximum values of P maize stem content were obtained by [Zn10(s )]and [Zn (F)] treatments under P2 in the two seasons , respectively”
Claim · model-written summary
U+Zn(F) gave the maximum maize grain Zn content under P2.
- Treatment
- [U+ Zn (F)]e0
- Outcome
- zn maize grain contente0
- Direction
- maximum valuese0
- Qualifier
- under P2 levele0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“MAIZE RESPONSE TO ZINC APPLICATION”
e0“the maximum values of zn maize grain content were obtained by [U+ Zn (F)] treatment under P2 level”
Claim · model-written summary
Zn(F) gave the maximum maize stem Zn content under P3.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“MAIZE RESPONSE TO ZINC APPLICATION”
e0“[Zn (F)] treatment gave the maximum maize stem zn content under P3 level in the two seasons”
Claim · model-written summary
U+Zn(F) gave the maximum maize grain and stem Fe content under P1.
- Treatment
- [U+ Zn(F)]e0
- Outcome
- maize grain and stem Fe contente0
- Direction
- maximum valuese0
- Qualifier
- under P1 levele0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“MAIZE RESPONSE TO ZINC APPLICATION”
e0“the maximum values of maize grain and stem Fe content were obtained by application of [U+ Zn(F)] treatment under P1 level in the two seasons except grain in the first season”
Claim · model-written summary
U+Zn(F) gave the maximum maize grain and stem Mn content under P3.
- Treatment
- [U+ Zn(F)]e0
- Outcome
- Mn of maize grain and steme1
- Direction
- maximum valuese1
- Qualifier
- under P3 levele1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“MAIZE RESPONSE TO ZINC APPLICATION”
e0“the maximum values of maize grain and stem Fe content were obtained by application of [U+ Zn(F)] treatment under P1 level in the two seasons except grain in the first season”
e1“The same treatment also gave the maximum values of Mn of maize grain and stem under P3 level”
Claim · model-written summary
Translocation of heavy metals from stem to grain in maize follows the decreasing sequence Zn > Mn > Fe.
- Outcome
- Translocation coefficient (TC%) of heavy metal from stem to graine0
- Direction
- decreasing sequencee0
- Qualifier
- Zn > Mn> Fee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“MAIZE RESPONSE TO ZINC APPLICATION”
e0“Translocation coefficient (TC%) of heavy metal from stem to grain can be arranged in the following decreasing sequence Zn > Mn> Fe”
Claim · model-written summary
Increasing P fertilizer from P1 to P3 increased available P, Fe and Mn in soil.
- Treatment
- increasing P fertilizer levels from P1 to P3e0
- Outcome
- Available P, Fe, and Mne0
- Direction
- increasede0
- Comparator
- P1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“MAIZE RESPONSE TO ZINC APPLICATION”
e0“Available P, Fe, and Mn increased by increasing P fertilizer levels from P1 to P3”
Claim · model-written summary
Increasing P fertilizer from P1 to P2 increased available Zn in soil.
- Treatment
- increasing P fertilizer levels from P1 to P2e0
- Outcome
- available Zne0
- Direction
- increasede0
- Comparator
- P1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“MAIZE RESPONSE TO ZINC APPLICATION”
e0“while available Zn increased by increasing P fertilizer levels from P1 to P2 but at P3 it decreased”
Claim · model-written summary
At P3, available Zn decreased compared with P2 in soil.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“MAIZE RESPONSE TO ZINC APPLICATION”
e0“while available Zn increased by increasing P fertilizer levels from P1 to P2 but at P3 it decreased”
Claim · model-written summary
U+Zn(F) gave the highest available P, Fe and Mn in soil.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“MAIZE RESPONSE TO ZINC APPLICATION”
e0“[U+ Zn (F)] treatment gave the highest available P, Fe, and Mn”
Claim · model-written summary
Zn20(S) gave the highest available Zn in soil.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“MAIZE RESPONSE TO ZINC APPLICATION”
e0“the highest available Zn was obtained by [Zn20(s)] treatment”
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