Abstract
Bacterial fertilizers, which contain beneficial soil microorganisms, are becoming more widely used as they can mitigate the problems of crop yields reduction and soil environment degradation caused by the overuse of chemical fertilizer. However, the impact of bacterial fertilizer on greenhouse grape yields and the rhizosphere soil environment has not been assessed in arid and semi-arid region of Northwest China. Thus, a 2-year field trial was conducted with five treatments: adequate water supply without bacterial fertilizer (CK); mild (W1), moderate (W2) water stress and small (F1), maximize (F2) fertilizer cross-combination, respectively. The results indicated that water stress had a negative impact on the accumulation of dissolved organic carbon (DOC), microbial biomass carbon (MBC), and microbial biomass nitrogen (MBN) in the rhizosphere soil. The addition of pseudomonas fluorescent bacterial fertilizer significantly increased the content of available phosphorus (AP), DOC, MBC and MBN content. The W1F2 treatment significantly increased the activities of urease, catalase and sucrase ( p < 0.05). The W1F1 and W1F2 treatments increased fungal and bacterial diversity. Bacterial community composition was closely related to soil total organic carbon (TOC), soil organic matter (SOM), total nitrogen (TN), total phosphorus (TP), MBC, and sucrase, while fungi community composition was significantly related to Nitrate-N (NO 3 − -N), TN, and sucrase. Additionally, compared with CK treatment the yield and economic benefit of the W1F2 treatment increased by 35.44 and 44.04%, respectively. Therefore, W1F2 is recommended as the optimal water and fertilizer management scheme for efficient greenhouse grape production in the arid and semi-arid region of Northwest China.
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Claims 9
Claim · model-written summary
Water stress lowered rhizosphere DOC, MBC, and MBN.
- Taxon
- grapet0
- Treatment
- water stresse0
- Outcome
- dissolved organic carbon (DOC), microbial biomass carbon (MBC), and microbial biomass nitrogen (MBN)e0
- Direction
- negative impacte0
Not reportedComparator
Verbatim
e0“water stress had a negative impact on the accumulation of dissolved organic carbon (DOC), microbial biomass carbon (MBC), and microbial biomass nitrogen (MBN) in the rhizosphere soil”
t0“grape”
Claim · model-written summary
Bacterial fertilizer significantly raised available P and rhizosphere DOC, MBC, and MBN.
- Taxon
- grapet0
- Treatment
- pseudomonas fluorescent bacterial fertilizere0
- Outcome
- available phosphorus (AP), DOC, MBC and MBN contente0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“The addition of pseudomonas fluorescent bacterial fertilizer significantly increased the content of available phosphorus (AP), DOC, MBC and MBN content”
t0“grape”
Claim · model-written summary
W1F2 significantly raised urease, catalase, and sucrase activity.
- Taxon
- grapet0
- Treatment
- W1F2 treatmente0
- Outcome
- activities of urease, catalase and sucrasee0
- Direction
- increasede0
- Value
- p < 0.05e0
Not reportedComparator
Verbatim
e0“The W1F2 treatment significantly increased the activities of urease, catalase and sucrase ( p < 0.05)”
t0“grape”
Claim · model-written summary
W1F1 and W1F2 increased fungal and bacterial diversity.
- Taxon
- grapet0
- Treatment
- W1F1 and W1F2 treatmentse0
- Outcome
- fungal and bacterial diversitye0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“The W1F1 and W1F2 treatments increased fungal and bacterial diversity”
t0“grape”
Claim · model-written summary
Bacterial community composition was closely related to TOC, SOM, TN, TP, MBC, and sucrase.
Verbatim
e0“Bacterial community composition was closely related to soil total organic carbon (TOC), soil organic matter (SOM), total nitrogen (TN), total phosphorus (TP), MBC, and sucrase”
t0“grape”
Claim · model-written summary
Fungal community composition was significantly related to nitrate-N, TN, and sucrase.
Verbatim
e0“fungi community composition was significantly related to Nitrate-N (NO 3 − -N), TN, and sucrase”
t0“grape”
Claim · model-written summary
W1F2 increased grape yield by 35.44% versus CK.
Verbatim
e0“compared with CK treatment the yield and economic benefit of the W1F2 treatment increased by 35.44 and 44.04%, respectively”
t0“grape”
Claim · model-written summary
W1F2 increased economic benefit by 44.04% versus CK.
Verbatim
e0“compared with CK treatment the yield and economic benefit of the W1F2 treatment increased by 35.44 and 44.04%, respectively”
t0“grape”
Claim · model-written summary
The authors recommend W1F2 for efficient greenhouse grape production in northwest China.
Verbatim
e0“W1F2 is recommended as the optimal water and fertilizer management scheme for efficient greenhouse grape production in the arid and semi-arid region of Northwest China”
t0“grape”
The same questions in other papers
drought · soil: chemistry · VitisPositive and negative results
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- positive
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fertilization · soil: chemistry · VitisPositive and negative results
12 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
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10 papers more in this group
See all 14 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.