Abstract
Two field experiments were carried out at Mallawi Agric. Res. Station, EL-Minia Governorate, in 2005 and 2006 seasons. The aim of this investigation was to evaluate effects of some foliar nutritional treatments; Urea (2%), Magic (2%); Nofatrein (1L/fad); and Potassin N (1L/fad) and soil-applied N at rate of 30 kg N/fad on growth and productivity of mid-season poorly grown cotton plants of Giza 83 cultivar. Foliar treatments were applied twice; at early flowering stage and 3 weeks later, while the supplemental soil N were applied as one dose at early flowering stage. A randomized complete block design with four replicates was used. The main findings could be summarized as follows: The results showed that the supplemental soil-applied N dose was the only treatment which gave a consistently significant increases in leaves content of chlorophyll, plant height, numbers of main stem nodes, fruiting branches, open bolls and total fruiting sites per plant, number of nodes above yellow flower and seed cotton yield per faddan in both seasons but it significantly decreased earliness percentage in comparison with the control in both seasons. All used foliar treatments significantly increased leaves content of chlorophyll and exerted increases in plant growth and productivity but the significance level was not always reached in comparison with the control. No significant differences were observed among the four foliar treatments used in this study in both seasons. It could be concluded that supplemental soil N dose of 30 kg N/fad at early flowering stage was more effective in enhancing vegetative growth, delaying cut-out and reducing yield loss of mid-season poorly grown cotton plants as compared with two sprays of any nutritional compound used in this study.
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Claims 8
Claim · model-written summary
Supplemental soil-applied N significantly increased leaf chlorophyll content, plant height and numbers of main stem nodes in cotton in both seasons.
- Taxon
- cotton
Gossypium hirsutumt0 - Treatment
- supplemental soil-applied N dosee0
- Outcome
- leaves content of chlorophyll, plant height, numbers of main stem nodese0
- Direction
- significant increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“N-STRESSED COTTON PLANT”
e0“the supplemental soil-applied N dose was the only treatment which gave a consistently significant increases in leaves content of chlorophyll, plant height, numbers of main stem nodes”
Claim · model-written summary
Supplemental soil-applied N significantly increased fruiting branches, open bolls and total fruiting sites per plant in cotton.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- supplemental soil-applied N dosee0
- Outcome
- fruiting branches, open bolls and total fruiting sites per plante2
- Direction
- significant increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“N-STRESSED COTTON PLANT”
e0“the supplemental soil-applied N dose was the only treatment which gave a consistently significant increases in leaves content of chlorophyll, plant height, numbers of main stem nodes”
e2“fruiting branches, open bolls and total fruiting sites per plant”
Claim · model-written summary
Supplemental soil-applied N significantly increased the number of nodes above yellow flower and seed cotton yield per faddan.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- supplemental soil-applied N dosee0
- Outcome
- number of nodes above yellow flower and seed cotton yield per faddane3
- Direction
- significant increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“N-STRESSED COTTON PLANT”
e0“the supplemental soil-applied N dose was the only treatment which gave a consistently significant increases in leaves content of chlorophyll, plant height, numbers of main stem nodes”
e3“number of nodes above yellow flower and seed cotton yield per faddan”
Claim · model-written summary
Supplemental soil-applied N significantly decreased earliness percentage compared with the control.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- supplemental soil-applied N dosee0
- Outcome
- earliness percentagee4
- Direction
- decreasede4
- Comparator
- controle4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“N-STRESSED COTTON PLANT”
e0“the supplemental soil-applied N dose was the only treatment which gave a consistently significant increases in leaves content of chlorophyll, plant height, numbers of main stem nodes”
e4“significantly decreased earliness percentage in comparison with the control in both seasons”
Claim · model-written summary
All foliar treatments significantly increased leaf chlorophyll content in cotton compared with the control.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- All used foliar treatmentse5
- Outcome
- leaves content of chlorophylle5
- Direction
- increasede5
- Comparator
- controle6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“N-STRESSED COTTON PLANT”
e5“All used foliar treatments significantly increased leaves content of chlorophyll”
e6“but the significance level was not always reached in comparison with the control”
Claim · model-written summary
All foliar treatments increased plant growth and productivity in cotton, but the significance was not always reached.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- All used foliar treatmentse5
- Outcome
- plant growth and productivitye7
- Direction
- increasese7
- Qualifier
- the significance level was not always reachede7
- Comparator
- controle6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“N-STRESSED COTTON PLANT”
e5“All used foliar treatments significantly increased leaves content of chlorophyll”
e6“but the significance level was not always reached in comparison with the control”
e7“exerted increases in plant growth and productivity but the significance level was not always reached”
Claim · model-written summary
No significant differences were observed among the four foliar treatments in either season.
- Taxon
- cottonGossypium hirsutumt0
- Outcome
- significant differencese1
- Qualifier
- among the four foliar treatmentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“N-STRESSED COTTON PLANT”
e1“No significant differences were observed among the four foliar treatments used in this study in both seasons”
Claim · model-written summary
Supplemental soil N of 30 kg N/fad at early flowering was more effective in enhancing vegetative growth and delaying cut-out than two sprays of any nutritional compound.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- supplemental soil N dose of 30 kg N/fad at early flowering stagee1
- Outcome
- vegetative growthe1
- Direction
- more effectivee1
- Qualifier
- delaying cut-out and reducing yield losse1
- Comparator
- two sprays of any nutritional compound used in this studye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“N-STRESSED COTTON PLANT”
e1“supplemental soil N dose of 30 kg N/fad at early flowering stage was more effective in enhancing vegetative growth, delaying cut-out and reducing yield loss of mid-season poorly grown cotton plants as compared with two sprays of any nutritional compound used in this study”
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