Abstract
In order to study the effect of phosphate solubilization microorganisms (PSM) and plant growth promoting rhizobacteria (PGPR) on yield and yield components of corn Zea mays (L. cv. SC604) an experiment was conducted at research farm of Sari Agricultural Sciences and Natural Resources University, Iran during 2007. Experiment laid out as split plot based on randomized complete block design with three replications. Three levels of manures (consisted of 20 Mg.ha-1 farmyard manure, 15 Mg.ha-1 green manure and check or without any manures) as main plots and eight levels of biofertilizers (consisted of 1-NPK or conventional fertilizer application; 2-NPK+PSM+PGPR; 3 NP50%K+PSM+PGPR; 4- N50%PK+PSM +PGPR; 5-N50%P50%K+PSM+ PGPR; 6-PK+PGPR; 7- NK+PSM and 8-PSM+PGPR) as sub plots were treatments. Results showed that farmyard manure application increased row number, ear weight, grain number per ear, grain yield, biological yield and harvest index compared to check. Furthermore, using of PSM and PGPR in addition to conventional fertilizer applications (NPK) could improve ear weight, row number and grain number per row and ultimately increased grain yield in green manure and check plots. According to results in all fertilizer treatments application of PSM and PGPR together could reduce P application by 50% without any significant reduction of grain yield. However, this treatment could not compensate 50% reduction of N application.
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Claims 6
Claim · model-written summary
Farmyard manure increased corn row number, ear weight, and grain number per ear versus check.
- Material
- SC604e1
- Treatment
- farmyard manure applicatione0
- Outcome
- row number, ear weight, grain number per eare0
- Direction
- increasede0
- Comparator
- checke0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“farmyard manure application increased row number, ear weight, grain number per ear, grain yield, biological yield and harvest index compared to check”
e1“corn Zea mays (L. cv. SC604)”
Claim · model-written summary
Farmyard manure increased corn grain yield, biological yield, and harvest index versus check.
- Material
- SC604e1
- Treatment
- farmyard manure applicatione0
- Outcome
- grain yield, biological yield and harvest indexe0
- Direction
- increasede0
- Comparator
- checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“farmyard manure application increased row number, ear weight, grain number per ear, grain yield, biological yield and harvest index compared to check”
e1“corn Zea mays (L. cv. SC604)”
Claim · model-written summary
PSM and PGPR plus NPK improved ear weight, row number, and grain number per row in green manure and check plots.
- Treatment
- PSM and PGPR in addition to conventional fertilizer applications (NPK)e0
- Interactor
- PSMe0symbiont
- Second interactor
- PGPRe0symbiont
- Outcome
- ear weight, row number and grain number per rowe0
- Direction
- improvee0
- Qualifier
- in green manure and check plotse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“using of PSM and PGPR in addition to conventional fertilizer applications (NPK) could improve ear weight, row number and grain number per row”
e1“in green manure and check plots”
e2“corn Zea mays (L. cv. SC604)”
Claim · model-written summary
PSM and PGPR plus NPK increased grain yield in green manure and check plots.
- Treatment
- PSM and PGPR in addition to conventional fertilizer applications (NPK)e0
- Interactor
- PSMe0symbiont
- Second interactor
- PGPRe0symbiont
- Outcome
- grain yielde0
- Direction
- increasede0
- Qualifier
- in green manure and check plotse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“using of PSM and PGPR in addition to conventional fertilizer applications (NPK) could improve ear weight, row number and grain number per row and ultimately increased grain yield in green manure and check plots”
e1“corn Zea mays (L. cv. SC604)”
Claim · model-written summary
Combined PSM and PGPR permitted 50% lower P application without significant grain yield reduction.
- Treatment
- application of PSM and PGPR togethere0
- Interactor
- PSMe0symbiont
- Second interactor
- PGPRe0symbiont
- Outcome
- grain yielde0
- Direction
- without any significant reductione0
- Value
- 50%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in all fertilizer treatments application of PSM and PGPR together could reduce P application by 50% without any significant reduction of grain yield”
e1“corn Zea mays (L. cv. SC604)”
Claim · model-written summary
Combined PSM and PGPR could not compensate a 50% reduction of N application.
- Treatment
- application of PSM and PGPR togethere1
- Interactor
- PSMe1symbiont
- Second interactor
- PGPRe1symbiont
- Outcome
- reduction of N applicatione0
- Direction
- could not compensatee0
- Value
- 50%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this treatment could not compensate 50% reduction of N application”
e1“application of PSM and PGPR together”
e2“corn Zea mays (L. cv. SC604)”
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