Cotton-maize intercropping increases rhizosphere soil phosphorus bioavailability by regulating key phosphorus cycling genes in northwest China

Wang, Wenmin; Chen, Yun; Zhang, Fenghua; Zhang, Wei; Liu, Jianguo; Wang, Jiaping; Yin, Fating; Cheng, Zhibo

doi:10.1016/j.apsoil.2022.104734

Cited by 9 publications

(9 citation statements)

References 49 publications

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“…Our findings indicated that S-fortified MAP yielded a higher increase in crop yield compared to S-fortified DAP, with a particularly notable difference observed when S additions exceeded 9% (Figure S1). Wang et al [54] also found that the application of DAP resulted in lower crop yields and nutrient uptake than the application of MAP and other acidic phosphate fertilizers in calcareous soil, mainly because of the reduced ability of DAP to acidify the rhizosphere effectively and the subsequent reduction in P availability. These results indicate that MAP could serve as the optimal phosphate carrier for incorporating S fertilizer to improve the crop yield in calcareous soil.…”

Section: Discussionmentioning

confidence: 99%

The Effects of Ammonium Phosphate with Different Sulfur Additions on Crop Yield and Nutrient Uptake in Calcareous Soil

Lu,

Liu,

Zhu

et al. 2024

Agronomy

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Sulfur (S) deficiency is becoming increasingly prevalent, posing a serious threat to crop yield and quality. The incorporation of S fertilizers into macronutrient fertilizers such as ammonium phosphate represents a straightforward and economically efficient approach to alleviating S deficiency, strengthening S supply, and improving crop yield. However, limited research has been conducted to assess the effect of monoammonium phosphate (MAP) and diammonium phosphate (DAP) with different S additions on agronomic outcomes. In this study, ammonium sulfate and elemental S with S set at 3%, 6%, 9%, and 12% (ensuring a 1:1 ratio of SO4−S to elemental S) were granulated with MAP and DAP, respectively. Maize was used as the test crop to evaluate its yield, nutrient uptake, and apparent sulfur recovery. The results showed that S-fortified MAP treatment increased crop yield and S uptake by an average of 9.3% and 10.6%, respectively. A significant difference in crop yield and S uptake was observed when the S addition in MAP exceeded 9% S. Nevertheless, no statistical difference was found among the DAP-based treatments in calcareous soil. There was a strong relationship between S applied in fertilizers and S uptake by crops for MAP-based treatments. However, the apparent sulfur recovery drastically dropped from 44.2% to 7.19% with the increased addition level of S for MAP-based fertilizers. The results of this study indicate that the addition of S to MAP could be a simple, low-cost, and effective approach with great potential to promote S fertilizer application, minimize soil S deficiency, and improve crop yield in calcareous soil.

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Section: Discussionmentioning

confidence: 99%

The Effects of Ammonium Phosphate with Different Sulfur Additions on Crop Yield and Nutrient Uptake in Calcareous Soil

Lu,

Liu,

Zhu

et al. 2024

Agronomy

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“…In the present study, the citrate-P content of maize monoculture systems was higher than that of the other treatments we studied, which may due to the different crop root types. Maize is a brous root crop had a larger horizontal growing root system which promotes the release of organic acids from crop roots and leads to the accumulation of citrate-P in their rhizosphere (Chen et al 2021;Wang et al 2023). Compared with intercropping, the relatively larger root density of maize monoculture leads to an increase in rhizosphere soil citrate-P content.…”

Section: Discussionmentioning

confidence: 99%

“…Soil pH, electrical conductivity (EC), soil organic matter (SOM), available P, total P, and microbial biomass P (SMBP) were measured as described by Wang et al (2023). Soil alkaline phosphatase (ALP) activity was determined by sodium phenyl phosphate colorimetry (Shao et al, 2020).…”

Section: Soil Physicochemical Properties and Bbp Analysismentioning

confidence: 99%

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Effects of maize/soybean intercropping on rhizosphere soil phosphorus availability and microbial phosphorus cycling genes in Northwest China

Wang¹,

Yin²,

Gu³

et al. 2023

Preprint

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Purpose Maize/soybean intercropping is widely used as a vital practice to improve crop yields in northwest China. However, it is unknown how rhizosphere soil microbes regulate the P availability at the genetic level in maize/soybean intercropping. Methods We conducted an experiment to evaluate the effect of maize/soybean intercropping on rhizosphere soil P availability and P cycling functional genes using the BBP fractions and metagenomics methods. Soil samples were collected in the M, S, IM and IS. Results The SOC, TP, AP and PAC are improved in IM and IS. P fractions followed the order HCl-P > Citrate-P > Enzyme-P > CaCl2-P. The dominate soil microbial phyla were Proteobacteria, Actinobacteria, Acidobacteria, Chloroflexi and Planctomycetes. PCA and NMDS indicated that soil microbial composition differed among treatments. The abundance of phoD, ppa, ppx and pstC upregulated in the IM, the random forest analysis showed that these genes have the highest explanation for AP, suggesting that the improved availability in IM may due to the upregulation of these genes. RDA analysis indicated that pH, SMBP significantly correlated with P fractions, indicating that pH and SMBP are important factors in influencing soil P bioavailability. Inorganic P solubilization, regulatory and transporter genes were correlated with soil pH, TP and ALP, suggesting they were the key factors affecting the expression of functional genes related to soil P cycling. Conclusion Maize/soybean intercropping can increase rhizosphere soil P bioavailability. Although there are relationships between soil AP and microbial genes (phoD, ppa, ppx,and pstC), soil properties are more crucial than genes in shaping soil P bioavailability.

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“…Consistent with this, Liu et al (2018) found that a strong P-activating ability was closely coupled with high gcd community's abundance. Wang et al (2023) and Azene et al (2023) stated that SOC, pH, CaCl 2 -P, and available P were the important factors influencing expression of gcd genes. In this study, random forest analysis showed that soil AP, NaOH-Pi, and NaHCO 3 -Pi were the major influential factors on the β-diversity of gcd community (Figure S1).…”

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confidence: 99%

Land reclamation increased labile and moderately labile P fractions and strengthened co‐occurrence network of gcd community in calcareous soils

2023

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Land reclamation significantly impacts the transformation and availability of phosphorus (P) in soils. P‐solubilizing microorganisms (PSMs) play key roles in activating soil P. However, the responses of PSMs to the buildup of P under land reclamation and the relationship between different P fractions and PSMs have not been clearly clarified. Here, an investigation was carried out containing three treatments: (i) vegetable field (VF), (ii) cropland (CF), and (iii) uncultivated land (UL). Different P fractions were measured; the abundance of stable oxygen isotope in phosphate of D.HCl‐Pi was determined. The diversity, composition, and co‐occurrence network of P‐solubilizing glucose dehydrogenase community (gcd) were analyzed. Compared with the UL treatment, soil total P in the treatments of VF and CF was significantly increased by 1.5 and 1.2 times, respectively. The proportions of labile and moderately labile P in the treatments of VF and CF were 151% and 58% higher than in the UL treatment. The α‐diversity of gcd community (i.e., Shannon and Chao1 indices) in the VF and CF treatments was significantly greater than in the UL treatment. The change in gcd community structure was closely associated with resin‐Pi, NaHCO3‐Pi, and NaOH‐Pi. The nodes and edges in the co‐occurrence networks of VF and CF treatments were higher than in the UL treatment. Overall, a substantial amount of P was accumulated after land reclamation, which was more pronounced by labile and moderately labile P than non‐labile P; the complexity and robustness of gcd community's co‐occurrence network were notably strengthened by land reclamation.

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Cotton-maize intercropping increases rhizosphere soil phosphorus bioavailability by regulating key phosphorus cycling genes in northwest China

Cited by 9 publications

References 49 publications

The Effects of Ammonium Phosphate with Different Sulfur Additions on Crop Yield and Nutrient Uptake in Calcareous Soil

The Effects of Ammonium Phosphate with Different Sulfur Additions on Crop Yield and Nutrient Uptake in Calcareous Soil

Effects of maize/soybean intercropping on rhizosphere soil phosphorus availability and microbial phosphorus cycling genes in Northwest China

Land reclamation increased labile and moderately labile P fractions and strengthened co‐occurrence network of gcd community in calcareous soils

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