Abstract
In order to increase nutrient input and alleviate the poor growth of blueberry (Vaccinium corymbosum L.) in neutral soil with strong nitrification, the application of nitrification inhibitor 3,4-dimethylpyrazole phosphate (DMPP) as an enhanced efficiency fertilizer is a strategy to reduce nitrogen (N) loss and improve N supply. However, few studies have systematically investigated the effect of DMPP application on blueberry and its soil condition in detail so far. In this study, a pot experiment was conducted to elucidate the effect of DMPP at four gradient levels including 0.5% (w/w applied-N) DMPP (DL), 1% DMPP (DM), 2% DMPP (DH), and no DMPP (CK) on the dynamics of soil mineral N (NH4+-N and NO3−-N), soil chemical properties, as well as the agronomic characteristics and physiological indexes of blueberry plants in the neutral soil–blueberry system. The addition of DMPP significantly increased the retention of soil ammonium nitrogen and the content of total mineral nitrogen. qPCR analysis showed that DMPP inhibited the ammoxidation process mainly by reducing the abundance of the ammonia-oxidizing bacteria (AOB) amoA gene rather than the ammonia-oxidizing archaea (AOA) amoA gene. No significant inhibitory effect of DMPP was observed for the nitrite dehydrogenase gene nxrA and nitrite reductase gene nirS. Soil NH4+-N and available phosphorus content were both enhanced with the DMPP application rates both in bulk and rhizosphere soil. Applying 1% DMPP to the neutral soil for blueberry was sufficient to safely inhibit soil nitrification, not only increasing ammonium nitrogen content by 10.42% and 26.79%, but also enhancing available phosphorus content by 9.19% and 22.41% compared with CK in bulk and rhizosphere soil, respectively. Moreover, 1% DMPP addition increased the nitrogen and phosphorus concentration of blueberry leaves by 12.17% and 26.42%, respectively, compared with CK. The total branch length and the dry weight of blueberry plant were also increased by 16.8% and 33.1%, respectively. These results provide valuable agronomic information for the application of DMPP in blueberry cultivation. Fertilization applied with 1% DMPP has great economic potential to improve both nitrogen and phosphorus absorption of blueberry so as to promote the vegetative growth of blueberry.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 16
Claim · model-written summary
DMPP increased soil ammonium nitrogen retention.
- Taxon
- blueberry (Vaccinium corymbosum L.)
Vaccinium corymbosume1 - Treatment
- DMPPe0
- Outcome
- retention of soil ammonium nitrogene0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The addition of DMPP significantly increased the retention of soil ammonium nitrogen and the content of total mineral nitrogen.”
e1“blueberry (Vaccinium corymbosum L.)”
Claim · model-written summary
DMPP increased total soil mineral nitrogen.
- Taxon
- blueberry (Vaccinium corymbosum L.)Vaccinium corymbosume1
- Treatment
- DMPPe0
- Outcome
- content of total mineral nitrogene0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The addition of DMPP significantly increased the retention of soil ammonium nitrogen and the content of total mineral nitrogen.”
e1“blueberry (Vaccinium corymbosum L.)”
Claim · model-written summary
DMPP inhibited ammonia oxidation mainly by reducing AOB amoA gene abundance rather than AOA amoA abundance.
- Taxon
- blueberry (Vaccinium corymbosum L.)Vaccinium corymbosume1
- Treatment
- DMPPe0
- Gene
- ammonia-oxidizing bacteria (AOB) amoA genee0
- Outcome
- ammoxidation processe0
- Direction
- inhibitede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DMPP inhibited the ammoxidation process mainly by reducing the abundance of the ammonia-oxidizing bacteria (AOB) amoA gene rather than the ammonia-oxidizing archaea (AOA) amoA gene.”
e1“blueberry (Vaccinium corymbosum L.)”
Claim · model-written summary
DMPP had no significant inhibitory effect on nxrA.
- Taxon
- blueberry (Vaccinium corymbosum L.)Vaccinium corymbosume1
- Treatment
- DMPPe0
- Gene
- nitrite dehydrogenase gene nxrAe0
- Outcome
- nitrite dehydrogenase gene nxrAe0
- Direction
- No significant inhibitory effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No significant inhibitory effect of DMPP was observed for the nitrite dehydrogenase gene nxrA and nitrite reductase gene nirS.”
e1“blueberry (Vaccinium corymbosum L.)”
Claim · model-written summary
DMPP had no significant inhibitory effect on nirS.
- Taxon
- blueberry (Vaccinium corymbosum L.)Vaccinium corymbosume1
- Treatment
- DMPPe0
- Gene
- nitrite reductase gene nirSe0
- Outcome
- nitrite reductase gene nirSe0
- Direction
- No significant inhibitory effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No significant inhibitory effect of DMPP was observed for the nitrite dehydrogenase gene nxrA and nitrite reductase gene nirS.”
e1“blueberry (Vaccinium corymbosum L.)”
Claim · model-written summary
DMPP enhanced soil ammonium nitrogen in bulk and rhizosphere soil.
- Taxon
- blueberry (Vaccinium corymbosum L.)Vaccinium corymbosume1
- Treatment
- DMPP application ratese0
- Outcome
- Soil NH4+-Ne0
- Direction
- enhancede0
- Setting
- bulk and rhizosphere soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil NH4+-N and available phosphorus content were both enhanced with the DMPP application rates both in bulk and rhizosphere soil.”
e1“blueberry (Vaccinium corymbosum L.)”
Claim · model-written summary
DMPP enhanced available phosphorus in bulk and rhizosphere soil.
- Taxon
- blueberry (Vaccinium corymbosum L.)Vaccinium corymbosume1
- Treatment
- DMPP application ratese0
- Outcome
- available phosphorus contente0
- Direction
- enhancede0
- Setting
- bulk and rhizosphere soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil NH4+-N and available phosphorus content were both enhanced with the DMPP application rates both in bulk and rhizosphere soil.”
e1“blueberry (Vaccinium corymbosum L.)”
Claim · model-written summary
At 1% DMPP, soil ammonium nitrogen increased 10.42% in bulk soil versus CK.
Verbatim
e0“1% DMPP to the neutral soil for blueberry was sufficient to safely inhibit soil nitrification, not only increasing ammonium nitrogen content by 10.42% and 26.79%, but also enhancing available phosphorus content by 9.19% and 22.41% compared with CK in bulk and rhizosphere soil, respectively.”
Claim · model-written summary
At 1% DMPP, soil ammonium nitrogen increased 26.79% in rhizosphere soil versus CK.
Verbatim
e0“1% DMPP to the neutral soil for blueberry was sufficient to safely inhibit soil nitrification, not only increasing ammonium nitrogen content by 10.42% and 26.79%, but also enhancing available phosphorus content by 9.19% and 22.41% compared with CK in bulk and rhizosphere soil, respectively.”
Claim · model-written summary
At 1% DMPP, available phosphorus rose 9.19% in bulk soil versus CK.
Verbatim
e0“1% DMPP to the neutral soil for blueberry was sufficient to safely inhibit soil nitrification, not only increasing ammonium nitrogen content by 10.42% and 26.79%, but also enhancing available phosphorus content by 9.19% and 22.41% compared with CK in bulk and rhizosphere soil, respectively.”
Claim · model-written summary
At 1% DMPP, available phosphorus rose 22.41% in rhizosphere soil versus CK.
Verbatim
e0“1% DMPP to the neutral soil for blueberry was sufficient to safely inhibit soil nitrification, not only increasing ammonium nitrogen content by 10.42% and 26.79%, but also enhancing available phosphorus content by 9.19% and 22.41% compared with CK in bulk and rhizosphere soil, respectively.”
Claim · model-written summary
At 1% DMPP, blueberry leaf nitrogen concentration increased 12.17% versus CK.
Verbatim
e0“1% DMPP addition increased the nitrogen and phosphorus concentration of blueberry leaves by 12.17% and 26.42%, respectively, compared with CK.”
Claim · model-written summary
At 1% DMPP, blueberry leaf phosphorus concentration increased 26.42% versus CK.
Verbatim
e0“1% DMPP addition increased the nitrogen and phosphorus concentration of blueberry leaves by 12.17% and 26.42%, respectively, compared with CK.”
Claim · model-written summary
At 1% DMPP, total blueberry branch length increased 16.8%.
Verbatim
e0“The total branch length and the dry weight of blueberry plant were also increased by 16.8% and 33.1%, respectively.”
e1“1% DMPP addition increased the nitrogen and phosphorus concentration of blueberry leaves by 12.17% and 26.42%, respectively, compared with CK.”
Claim · model-written summary
At 1% DMPP, blueberry dry weight increased 33.1%.
Verbatim
e0“The total branch length and the dry weight of blueberry plant were also increased by 16.8% and 33.1%, respectively.”
e1“1% DMPP addition increased the nitrogen and phosphorus concentration of blueberry leaves by 12.17% and 26.42%, respectively, compared with CK.”
Claim · model-written summary
The authors recommend 1% DMPP fertilization to improve blueberry nitrogen and phosphorus absorption and vegetative growth.
Verbatim
e0“Fertilization applied with 1% DMPP has great economic potential to improve both nitrogen and phosphorus absorption of blueberry so as to promote the vegetative growth of blueberry.”
The same questions in other papers
phosphorus · nutrient: content · VacciniumPositive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
phosphorus · molecular: metabolites · Vaccinium corymbosum (highbush blueberry)Results agree
1 paper in the same direction as this paper
- positive
phosphorus · growth · VacciniumResults agree
1 paper in the same direction as this paper
- positive
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.