Abstract
Optimum impregnation ratio of rock phosphate (RP) and compost in RP-enriched organic fertilizer, its time and rate of application to the crop plants affect the availability of nutrients through the process of mineralization and immobilization. A series of pot and field experiments were conducted to investigate the comparative efficacy of RP-enriched organic fertilizer vs. mineral phosphatic fertilizer on growth, yield and nodulation of lentil. Optimum impregnation ratio of RP and compost and the time of application to improve growth, nodulation and yield of lentil were investigated under wire house conditions. The impregnation ratio of 50:50 RP and compost and time of application of seven days before sowing resulted in the maximum nodulation, growth and yield parameters compared to the other impregnation ratios and the times of application. Optimized impregnation ratio and time of application were further investigated for optimum rate of application under field conditions to enhance nodulation, growth and yield of lentil in comparison with recommended mineral phosphatic fertilizer. The application of RP-enriched organic fertilizer @ 1000 kg ha -1 showed an increase of 35.5, 27 and 6% in number of nodules, fresh weight of nodules, and grain yield compared to chemical phosphatic fertilizer, respectively. Similarly, significant increase in P contents of straw and grain was also observed with the application of RP-enriched organic fertilizer @ 1000 kg ha -1 compared to chemical phosphatic fertilizer. However, the effect of the application of 800 and 1000 kg ha -1 was statistically non-significant for most of the parameters studied. The results suggested that RP-enriched organic fertilizer with optimum impregnation ratio of RP and compost, time of application and rate of application had a pronounced effect on nodulation, growth and yield of lentil as compared to recommended chemical phosphatic fertilizer.
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Claims 6
Claim · model-written summary
The 50:50 impregnation ratio applied seven days before sowing maximized nodulation, growth and yield.
- Taxon
- lentil
Lens culinarist0 - Treatment
- 50:50 RP and compost and time of application of seven days before sowinge0
- Outcome
- nodulation, growth and yield parameterse0
- Direction
- maximume0
- Comparator
- the other impregnation ratios and the times of applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The impregnation ratio of 50:50 RP and compost and time of application of seven days before sowing resulted in the maximum nodulation, growth and yield parameters compared to the other impregnation ratios and the times of application.”
t0“lentil”
Claim · model-written summary
Organic fertilizer increased lentil nodule number 35.5% versus chemical fertilizer.
- Taxon
- lentilLens culinarist0
- Treatment
- RP-enriched organic fertilizer @ 1000 kg ha -1e0
- Outcome
- number of nodulese0
- Direction
- increasee0
- Value
- 35.5e0
- Comparator
- chemical phosphatic fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of RP-enriched organic fertilizer @ 1000 kg ha -1 showed an increase of 35.5, 27 and 6% in number of nodules, fresh weight of nodules, and grain yield compared to chemical phosphatic fertilizer, respectively.”
t0“lentil”
Claim · model-written summary
Organic fertilizer increased lentil nodule fresh weight 27%.
- Taxon
- lentilLens culinarist0
- Treatment
- RP-enriched organic fertilizer @ 1000 kg ha -1e0
- Outcome
- fresh weight of nodulese0
- Direction
- increasee0
- Value
- 27e0
- Comparator
- chemical phosphatic fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of RP-enriched organic fertilizer @ 1000 kg ha -1 showed an increase of 35.5, 27 and 6% in number of nodules, fresh weight of nodules, and grain yield compared to chemical phosphatic fertilizer, respectively.”
t0“lentil”
Claim · model-written summary
Organic fertilizer increased lentil grain yield 6%.
- Taxon
- lentilLens culinarist0
- Treatment
- RP-enriched organic fertilizer @ 1000 kg ha -1e0
- Outcome
- grain yielde0
- Direction
- increasee0
- Value
- 6%e0
- Comparator
- chemical phosphatic fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of RP-enriched organic fertilizer @ 1000 kg ha -1 showed an increase of 35.5, 27 and 6% in number of nodules, fresh weight of nodules, and grain yield compared to chemical phosphatic fertilizer, respectively.”
t0“lentil”
Claim · model-written summary
Organic fertilizer significantly increased straw and grain phosphorus contents.
- Taxon
- lentilLens culinarist0
- Treatment
- RP-enriched organic fertilizer @ 1000 kg ha -1e0
- Outcome
- P contents of straw and graine0
- Direction
- increasee0
- Comparator
- chemical phosphatic fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant increase in P contents of straw and grain was also observed with the application of RP-enriched organic fertilizer @ 1000 kg ha -1 compared to chemical phosphatic fertilizer.”
t0“lentil”
Claim · model-written summary
The 800 and 1000 kg fertilizer rates did not differ significantly for most studied parameters.
- Taxon
- lentilLens culinarist0
- Treatment
- application of 800e0
- Outcome
- most of the parameters studiede0
- Comparator
- 1000 kg ha -1e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effect of the application of 800 and 1000 kg ha -1 was statistically non-significant for most of the parameters studied.”
t0“lentil”
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