Abstract
Greenhouse and field experiments were conducted to test the effect of a P-solubilizing isolate of Penicillium bilaji on the availability of Idaho rock phosphate (RP) in a calcareous soil. Under controlled greenhouse conditions, inoculation of soils with P. bilaji along with RP at 45 mug of P per g of soil resulted in plant dry matter production and P uptake by wheat (Triticum aestivum) and beans (Phaseolus vulgaris) that were not significantly different from the increases in dry matter production and P uptake caused by the addition of 15 mug of P per g of soil as triple superphosphate. Addition of RP alone had no effect on plant growth. Addition of vesicular-arbuscular mycorrhizal fungi was necessary for maximum effect in the sterilized soil in the greenhouse experiment. Under field conditions, a treatment consisting of RP (20 kg of P per ha of soil) plus P. bilaji plus straw resulted in wheat yields and P uptake equivalent to increases due to the addition of monoammonium phosphate added at an equivalent rate of P. RP added alone had no effect on wheat growth or P uptake. The results indicate that a biological system of RP solubilization can be used to increase the availability of RP added to calcareous soils.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 7
Claim · model-written summary
In the greenhouse, Penicillium bilaji plus rock phosphate raised wheat dry matter and phosphorus uptake comparably to triple superphosphate.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- P. bilaji along with RP at 45 mug of P per g of soile0
- Interactor
- P. bilajie0symbiont
- Outcome
- plant dry matter production and P uptakee0
- Direction
- increasese0
- Comparator
- 15 mug of P per g of soil as triple superphosphatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inoculation of soils with P. bilaji along with RP at 45 mug of P per g of soil resulted in plant dry matter production and P uptake by wheat (Triticum aestivum) and beans (Phaseolus vulgaris) that were not significantly different from the increases in dry matter production and P uptake caused by the addition of 15 mug of P per g of soil as triple superphosphate.”
Claim · model-written summary
In the greenhouse, Penicillium bilaji plus rock phosphate raised bean dry matter and phosphorus uptake comparably to triple superphosphate.
Verbatim
e0“inoculation of soils with P. bilaji along with RP at 45 mug of P per g of soil resulted in plant dry matter production and P uptake by wheat (Triticum aestivum) and beans (Phaseolus vulgaris) that were not significantly different from the increases in dry matter production and P uptake caused by the addition of 15 mug of P per g of soil as triple superphosphate.”
Claim · model-written summary
Rock phosphate alone did not affect plant growth.
- Taxon
- wheatTriticum aestivume1
- Treatment
- RP alonee0
- Outcome
- plant growthe0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Addition of RP alone had no effect on plant growth.”
e1“wheat (Triticum aestivum) and beans (Phaseolus vulgaris)”
Claim · model-written summary
Mycorrhizal fungi were needed for the maximum greenhouse effect in sterilized soil.
- Taxon
- wheatTriticum aestivume1
- Treatment
- Addition of vesicular-arbuscular mycorrhizal fungie0
- Interactor
- vesicular-arbuscular mycorrhizal fungie0symbiont
- Outcome
- maximum effecte0
- Setting
- greenhouse experimente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Addition of vesicular-arbuscular mycorrhizal fungi was necessary for maximum effect in the sterilized soil in the greenhouse experiment.”
e1“wheat (Triticum aestivum) and beans (Phaseolus vulgaris)”
Claim · model-written summary
In the field, rock phosphate, P. bilaji and straw gave wheat yield and phosphorus uptake equivalent to monoammonium phosphate.
- Taxon
- wheatTriticum aestivume0
- Treatment
- RP (20 kg of P per ha of soil) plus P. bilaji plus strawe0
- Interactor
- P. bilajie0symbiont
- Outcome
- wheat yields and P uptakee0
- Direction
- increasese0
- Comparator
- monoammonium phosphatee0
- Setting
- field conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under field conditions, a treatment consisting of RP (20 kg of P per ha of soil) plus P. bilaji plus straw resulted in wheat yields and P uptake equivalent to increases due to the addition of monoammonium phosphate added at an equivalent rate of P.”
Claim · model-written summary
Rock phosphate alone did not affect field wheat growth or phosphorus uptake.
- Taxon
- wheatTriticum aestivume0
- Treatment
- RP added alonee0
- Outcome
- wheat growth or P uptakee0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“RP added alone had no effect on wheat growth or P uptake.”
Claim · model-written summary
The authors concluded biological rock phosphate solubilization can increase phosphorus availability in calcareous soils.
Verbatim
e0“The results indicate that a biological system of RP solubilization can be used to increase the availability of RP added to calcareous soils.”
t0“Wheat and Field Beans”
The same questions in other papers
phosphorus · yield · Phaseolus vulgaris (common bean)Positive and negative results
95 papers in the same direction as this paper · 20 in the opposite direction · 2 reporting no difference from an alternative
- negative
- negative
- negative
114 papers more in this group
See all 118 papers →phosphorus · growth · Triticum aestivum (wheat)Positive and negative results
34 papers in the same direction as this paper · 158 in the opposite direction
- positive
- positive
- positive
189 papers more in this group
See all 193 papers →phosphorus · yield · Triticum aestivum (wheat)Positive and negative results
523 papers in the same direction as this paper · 43 in the opposite direction · 5 reporting no difference from an alternative
- positive
- negative
- negative
568 papers more in this group
See all 572 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.