Abstract
Two field experiments were carried out during two successive seasons (2004/2005 and 2005) to investigate the effect of some soil amendments on productivity of wheat and soybean and mobility and availability of nitrogen in soil. A split- split plot design with three replicates was used. The main plots were devoted to compost application levels, C(0 and 20 m³/fed). The subplots were allocated to sulphur application levels, S ( 0, 450 and 900kg/fed). The sub-subplots were assigned for mineral fertilizers, NP(50,75 and 100% of the recommended dose). The main results could be summarized as follows: The 1000 grain weight of wheat, 100 seed weight of soybean and productivity of both crops were influenced significantly by alternative soil amendments treatments. The highest mean values of wheat grain and soybean seed yield were achieved from the interaction between application of 20m³ compost/ fed, 900kg sulphur/ fed, and 100% NP mineral fertilizer of the recommended dose. The application of compost increased the total nitrogen content in soil by 22.5 and 56.96% over the control after the harvesting of wheat and soybean, respectively. Application of sulphur had a positive effect on total nitrogen content in soil. The N content in soil was significantly increased with increasing the rate of sulphur up to 900kg/fed and NP up to100% from the recommended dose. The most effective interaction effect on increasing the NO-3 concentration in soil after harvesting of wheat was under 20m³compost, 900kg sulphur/ fed and mineral fertilizer at rate of 100% from the recommended dose.While after soybean the best interaction was detected between 20m³ compost, 900kg sulphur/ fed and adding NP mineral fertilizer at rate of 75% from the recommended dose. With regard to the interaction effect of different treatments on NH4+ concentration in soil the data demonstrated that the highest values were resulted from combination between applications of 20 m3 compost, 900 Kg sulphur/fed. and application of mineral fertilizers at rate of 75 % or 100 % from the recommended dose after harvesting of wheat and soybean, respectively.
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Claims 11
Claim · model-written summary
Soil amendment treatments significantly influenced 1000 grain weight of wheat.
- Taxon
- wheat
Triticum aestivume1 - Treatment
- alternative soil amendments treatmentse1
- Outcome
- 1000 grain weighte1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The 1000 grain weight of wheat, 100 seed weight of soybean and productivity of both crops were influenced significantly by alternative soil amendments treatments”
Claim · model-written summary
Soil amendment treatments significantly influenced 100 seed weight of soybean.
- Taxon
- soybean
Glycine maxe1 - Treatment
- alternative soil amendments treatmentse1
- Outcome
- 100 seed weighte1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The 1000 grain weight of wheat, 100 seed weight of soybean and productivity of both crops were influenced significantly by alternative soil amendments treatments”
Claim · model-written summary
Wheat grain yield was highest with 20 m³ compost, 900 kg sulphur and 100% NP mineral fertilizer.
- Taxon
- wheatTriticum aestivume2
- Treatment
- application of 20m³ compost/ fed, 900kg sulphur/ fed, and 100% NP mineral fertilizer of the recommended dosee2
- Outcome
- mean values of wheat graine2
- Direction
- higheste2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“The highest mean values of wheat grain and soybean seed yield were achieved from the interaction between application of 20m³ compost/ fed, 900kg sulphur/ fed, and 100% NP mineral fertilizer of the recommended dose”
Claim · model-written summary
Soybean seed yield was highest with 20 m³ compost, 900 kg sulphur and 100% NP mineral fertilizer.
- Taxon
- soybeanGlycine maxe2
- Treatment
- application of 20m³ compost/ fed, 900kg sulphur/ fed, and 100% NP mineral fertilizer of the recommended dosee2
- Outcome
- soybean seed yielde2
- Direction
- higheste2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“The highest mean values of wheat grain and soybean seed yield were achieved from the interaction between application of 20m³ compost/ fed, 900kg sulphur/ fed, and 100% NP mineral fertilizer of the recommended dose”
Claim · model-written summary
Compost application increased soil total nitrogen by 22.5% over the control after wheat harvest.
- Treatment
- application of composte3
- Outcome
- total nitrogen content in soile3
- Direction
- increasede3
- Value
- 22.5e3
- Qualifier
- after the harvesting of wheate3
- Comparator
- controle3
Not reportedTaxon
Verbatim
e3“The application of compost increased the total nitrogen content in soil by 22.5 and 56.96% over the control after the harvesting of wheat and soybean, respectively”
Claim · model-written summary
Compost application increased soil total nitrogen by 56.96% over the control after soybean harvest.
- Treatment
- application of composte3
- Outcome
- total nitrogen content in soile3
- Direction
- increasede3
- Value
- 56.96%e3
- Qualifier
- after the harvesting of wheat and soybeane3
- Comparator
- controle3
Not reportedTaxon
Verbatim
e3“The application of compost increased the total nitrogen content in soil by 22.5 and 56.96% over the control after the harvesting of wheat and soybean, respectively”
Claim · model-written summary
Sulphur application had a positive effect on soil total nitrogen content.
Not reportedTaxonComparator
Verbatim
e4“Application of sulphur had a positive effect on total nitrogen content in soil”
Claim · model-written summary
Soil nitrogen content increased with sulphur rate up to 900 kg/fed, with NP up to 100% of the recommended dose.
- Treatment
- increasing the rate of sulphur up to 900kg/fede5
- Outcome
- N content in soile5
- Direction
- increasede5
- Qualifier
- NP up to100% from the recommended dosee5
Not reportedTaxonComparator
Verbatim
e5“The N content in soil was significantly increased with increasing the rate of sulphur up to 900kg/fed and NP up to100% from the recommended dose”
Claim · model-written summary
The compost, sulphur and 100% NP interaction was most effective for increasing soil NO-3 after wheat harvest.
- Treatment
- 20m³compost, 900kg sulphur/ fed and mineral fertilizer at rate of 100%e6
- Outcome
- NO-3 concentration in soile6
- Direction
- increasinge6
- Qualifier
- after harvesting of wheate6
Not reportedTaxonComparator
Verbatim
e6“The most effective interaction effect on increasing the NO-3 concentration in soil after harvesting of wheat was under 20m³compost, 900kg sulphur/ fed and mineral fertilizer at rate of 100% from the recommended dose.While after soybean the best interaction was detected between 20m³ compost, 900kg sulphur/ fed and adding NP mineral fertilizer at rate of 75% from the recommended dose”
Claim · model-written summary
After soybean, the best interaction for soil NO-3 was compost, sulphur and 75% NP mineral fertilizer.
- Treatment
- 20m³ compost, 900kg sulphur/ fed and adding NP mineral fertilizer at rate of 75%e6
- Outcome
- NO-3 concentration in soile6
- Qualifier
- after soybeane6
Not reportedTaxonComparatorDirection
Verbatim
e6“The most effective interaction effect on increasing the NO-3 concentration in soil after harvesting of wheat was under 20m³compost, 900kg sulphur/ fed and mineral fertilizer at rate of 100% from the recommended dose.While after soybean the best interaction was detected between 20m³ compost, 900kg sulphur/ fed and adding NP mineral fertilizer at rate of 75% from the recommended dose”
Claim · model-written summary
The highest NH4+ concentration in soil resulted from compost, sulphur and 75% or 100% NP mineral fertilizer after wheat and soybean harvest.
- Treatment
- combination between applications of 20 m3 compost, 900 Kg sulphur/fed. and application of mineral fertilizers at rate of 75 % or 100 % from the recommended dosee7
- Outcome
- NH4+ concentratione0
- Direction
- highest valuese7
- Qualifier
- after harvesting of wheat and soybeane7
Not reportedTaxonComparator
Verbatim
e0“interaction effect of different treatments on NH4+ concentration in soil”
e7“the highest values were resulted from combination between applications of 20 m3 compost, 900 Kg sulphur/fed. and application of mineral fertilizers at rate of 75 % or 100 % from the recommended dose after harvesting of wheat and soybean, respectively”
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