Abstract
Two field experiments were carried out during two successive seasons of 1998 and 1999 at the experimental station of National Research Centre in Shalakan , to study the response of cowpea plant to chemical and bio phosphorus fertilizers . Each experiment included 3 rates of chemical phosphorus fertilizer , i.e. 0 , 150 and 300 kg/fed.as super phosphate , and 3 rates of phosphorine (bio-phosphorus) , i.e. 0, , 14 and 21 g/kg of seeds . The important obtained results are shown as follows : The addition rate of phosphorus up to 300 kg/fed. as super-phosphate per feddan had a gradual increase in values of length of plant , average number of leaves and shoots as well as fresh and dry weight of whole plant and its different organs. Treating seeds of cowpea before sowing by phosphorine at rate of 14 g/kg and/or 21 g/kg of seeds gave a considerable effect on the growth characters of cowpea plant during the two seasons. The best growth of cowpea plant , as expressed by fresh and dry weight of whole plant and its different parts recorded its highest values when chemical phosphorus at rate of 300 kg/fed. was added and Bio-phosporus (phosphorine) was applied at rate of 21 g/kg of seeds . The highest concentration N, P and K in leaf and/or shoot tissues were recorded when phosphorine at rate of 21 g/kg of seeds as well as chemical phosphorus fertilizer at rate of 300 kg/feddan were added. Addition of chemical phosphorus as super phosphate at rate upto 300 kg/fed. had a significant increase in total yield of dry seeds .Also the interaction treatments of chemical X bio-phosphorus fertilizers caused an increase in total yield of dry seeds .
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Claims 7
Claim · model-written summary
Increasing super-phosphate up to 300 kg/fed. increased plant length, leaves, and shoots.
- Taxon
- plante0
- Treatment
- phosphorus up to 300 kg/fed. as super-phosphatee0
- Outcome
- length of plant , average number of leaves and shootse0
- Direction
- gradual increasee0
Not reportedComparator
Verbatim
e0“The addition rate of phosphorus up to 300 kg/fed. as super-phosphate per feddan had a gradual increase in values of length of plant , average number of leaves and shoots”
Claim · model-written summary
Increasing super-phosphate up to 300 kg/fed. increased fresh and dry plant weight.
- Taxon
- COWPEA
Vigna unguiculatat0 - Treatment
- phosphorus up to 300 kg/fed. as super-phosphatee0
- Outcome
- fresh and dry weight of whole plant and its different organse0
- Direction
- gradual increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The addition rate of phosphorus up to 300 kg/fed. as super-phosphate per feddan had a gradual increase in values of length of plant , average number of leaves and shoots as well as fresh and dry weight of whole plant and its different organs”
t0“COWPEA PLANT”
Claim · model-written summary
Phosphorine seed treatments at 14 or 21 g/kg affected cowpea growth in both seasons.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- phosphorine at rate of 14 g/kg and/or 21 g/kg of seedse0
- Outcome
- growth characters of cowpea plante0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treating seeds of cowpea before sowing by phosphorine at rate of 14 g/kg and/or 21 g/kg of seeds gave a considerable effect on the growth characters of cowpea plant during the two seasons”
Claim · model-written summary
Combined 300 kg/fed. chemical phosphorus and 21 g/kg phosphorine produced maximum fresh and dry weight.
- Taxon
- COWPEAVigna unguiculatat0
- Treatment
- chemical phosphorus at rate of 300 kg/fed.e0
- Outcome
- fresh and dry weight of whole plant and its different partse0
- Direction
- highest valuese0
- Qualifier
- Bio-phosporus (phosphorine) was applied at rate of 21 g/kg of seedse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fresh and dry weight of whole plant and its different parts recorded its highest values when chemical phosphorus at rate of 300 kg/fed. was added and Bio-phosporus (phosphorine) was applied at rate of 21 g/kg of seeds”
t0“COWPEA PLANT”
Claim · model-written summary
The combined high fertilizer rates gave the highest leaf or shoot N, P and K concentration.
- Taxon
- COWPEAVigna unguiculatat0
- Treatment
- phosphorine at rate of 21 g/kg of seedse0
- Outcome
- concentration N, P and K in leaf and/or shoot tissuese0
- Direction
- higheste0
- Qualifier
- chemical phosphorus fertilizer at rate of 300 kg/feddane0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest concentration N, P and K in leaf and/or shoot tissues were recorded when phosphorine at rate of 21 g/kg of seeds as well as chemical phosphorus fertilizer at rate of 300 kg/feddan were added”
t0“COWPEA PLANT”
Claim · model-written summary
Super phosphate up to 300 kg/fed. significantly increased dry seed yield.
- Taxon
- seedse0
- Treatment
- chemical phosphorus as super phosphate at rate upto 300 kg/fed.e0
- Outcome
- total yield of dry seedse0
- Direction
- increasee0
Not reportedComparator
Verbatim
e0“Addition of chemical phosphorus as super phosphate at rate upto 300 kg/fed. had a significant increase in total yield of dry seeds”
Claim · model-written summary
Combined chemical and bio-phosphorus treatments increased dry seed yield.
- Taxon
- COWPEAVigna unguiculatat0
- Treatment
- chemical X bio-phosphorus fertilizerse0
- Outcome
- total yield of dry seedse0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the interaction treatments of chemical X bio-phosphorus fertilizers caused an increase in total yield of dry seeds”
t0“COWPEA PLANT”
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