Partial substitution of chemical fertilizers with manure alters soil phosphorus fractions and optimizes vegetable production in alkaline soil

Chen, Shuo; Jiang, Jiaxin; Wei, Lulu; Lei, Jilin; Fenton, Owen; Daly, Karen; Chen, Qing

doi:10.1080/03650340.2021.2018575

Cited by 4 publications

(5 citation statements)

References 64 publications

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“…Previous study notes that simply converting to 100% organic production will inevitably lead to increased agricultural land use ( Muller et al., 2017 ), and it can be challenging to maintain crop production even when organic P fertilizer is applied exclusively to cereal crops with well-developed root systems ( Andriamananjara et al., 2019 ). Replacing 40% of P fertilizer with organic P fertilizer has been found to be more effective in improving the soil environment and crop production ( Chen et al., 2021 ). The application of a manure substitution strategy on P can ensure crop production while promoting resource recycling and integrating agriculture and livestock.…”

Section: Discussionmentioning

confidence: 99%

Optimizing the manure substitution rate based on phosphorus fertilizer to enhance soil phosphorus turnover and root uptake in pepper (Capsicum)

Sun,

Cui,

Sun

et al. 2024

Front. Plant Sci.

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IntroductionIn contemporary agriculture, the substitution of manure for chemical fertilizer based on phosphorus (P) input in vegetable production has led to a significant reduction in P fertilizer application rates, while, the effect of manure substitution rates on soil P transformation and uptake by root remain unclear.MethodsThis research conducts a pot experiment with varying manure substitution rates (0%, 10%, 20%, 30%, 40%, 50%, 75% and 100%) based on P nutrient content to elucidate the mechanisms through which manure substitution affects P uptake in pepper.Results and discussionThe result showed that shoot and root biomass of pepper gradually increased as manure substitution rate from 10% to 40%, and then gradually decreased with further increases in the substitution rate. Soil alkaline phosphatase activity and arbuscular mycorrhizal (AM) colonization gradually increased with manure substitution rates improvement. Specifically, when the substitution rate reached 30%–40%, the alkaline phosphatase activity increased by 24.5%–33.8% compared to the fertilizer treatment. In contrast, phytase activity and the relative expression of phosphate transporter protein genes in the root system was declined after peaking at 30% manure substitution. Additionally, soil available P remained moderate under 30%–40% substitution rate, which was reduced by 8.6%–10.2% compared to that in chemical fertilizer treatment, while microbial biomass P was comparable. In the current study, soil labile P similar to or even higher than that in chemical fertilizer treatment when the substitution rate was ≤40%. Correlation heatmaps demonstrated a significant and positive relationship between soil available P and factors related to labile P and moderately labile P.ConclusionThis finding suggested that substituting 30%–40% of chemical P with manure can effectively enhance root length, AM colonization, soil enzyme activity, soil labile P, and consequently improve P uptake in pepper. These findings provide valuable insights for future organic agricultural practices that prioritize P supply, aiming to standardize organic P management in farmland and achieve high crop yields and maintain soil health.

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Section: Discussionmentioning

confidence: 99%

Optimizing the manure substitution rate based on phosphorus fertilizer to enhance soil phosphorus turnover and root uptake in pepper (Capsicum)

Sun,

Cui,

Sun

et al. 2024

Front. Plant Sci.

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“…The use of bio‐organic fertilizer NBW in combination with chemical fertilizer increased the concentrations of active P by promoting the release of Fe/Al‐bound P (NaOH‐P). Partial organic substitution of chemical fertilizers can promote the conversion of insoluble phosphate to available P in acidic soils (Chen et al., 2021). Moreover, the release of NaOH‐P (Fe/Al‐bound P) is strongly influenced by soil pH.…”

Section: Discussionmentioning

confidence: 99%

“…Organic fertilizers, such as farmyard manure and bio‐organic fertilizers inoculated with beneficial microorganisms, are extensively used for crop production in China. By altering the soil physicochemical properties, in addition to biotic and abiotic processes, organic fertilizer application facilitates the transformation of different P forms and converts organic P into inorganic P. In combination with chemical fertilizers, it increases resin‐P contents and reduces NaOH‐P o concentrations significantly, but has no significant effect on NaOH‐P o concentrations in low P fixation soils (Chakraborty et al., 2021; Chen et al., 2021; Ibijola et al., 2014; Pagliari & Laboski, 2013).…”

Section: Introductionmentioning

confidence: 99%

Enhancing phosphorus bioavailability in lateritic red soil: Combining Bacillus subtilis inoculated microbial organic fertilizer with reduced chemical input

Duan,

Li,

et al. 2023

Soil Use and Management

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Optimal phosphorus (P) levels in lateritic soils are key for sustainable crop production. However, the effect of various fertilizers on soil phosphorus pools, crop phosphorus uptake, and crop yields remains unclear. This study investigated the effect of different fertilization strategies on plant growth and soil P fractions, and determined the contribution of biotic and abiotic factors to insoluble P release. We found that resin‐P, NaHCO3‐P, and NaOH‐P represented the primary active P pools in the lateritic soil, contributing 59.8% of the total P in conventional fertilization (CF), with Fe/Al‐bound P (NaOH‐P) being 42.1% of the active P pool. Combining Nangbowang (NBW), a microbial organic fertilizer inoculated with Bacillus subtilis (≥ 2×107 million CFU g‐1), with reduced chemical fertilizer (NBW+CR) increased soil P availability and promoted the release of Fe/Al‐bound P and residual‐P, decreasing the Fe/Al‐bound P to 21.7%. Soil biological factors mainly influenced the P transformation process. With the consumption of soil active P, NBW bio‐organic fertilizer enhanced the niche filtration of P solubilizing bacterial communities (Gemmatimonadetes, Sphingomonas, and Halomonas), altered the soil functional microbial community structure, and promoted P form conversion. The NBW + CR treatment also enhanced nitrogen and P nutrient uptake by pepper plants (Capsicum annuum), with increased total P concentrations in pepper fruit and stem, and improved crop yield. NBW increased active P concentrations in the soil and promoted Fe/Al‐P release and transformation by impacting autochthonous microbes involved in the conversion of P chemical species. These results can guide the improvement of P availability and release in lateritic red soils using bio‐organic fertilizer.

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“…Phosphorus applied to soil is easily fixed by the soil, causing it to accumulate in large quantities in soil [ 3 ]. The insoluble phosphorus formed after accumulation is difficult to be directly absorbed and utilized by plants.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, biological phosphorus removal technology is rarely reported on the conversion of soil phosphorus, so this experiment will do some attempts and discussions in this part. In soil research, the phosphorus solubilization mechanism of phosphorus solubilizing microorganisms can usually be achieved through organic acids, proton exchange, complexation, and other pathways to dissolve and release insoluble phosphates [ 3 ]. And it is a microorganism that can convert insoluble phosphate into a form that can be absorbed by plants [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of application of phosphate and phosphate-solubilizing bacteria on bacterial diversity and phosphorus fractions in a Phaeozems

Tang,

Che,

Bai

et al. 2023

Heliyon

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Partial substitution of chemical fertilizers with manure alters soil phosphorus fractions and optimizes vegetable production in alkaline soil

Cited by 4 publications

References 64 publications

Optimizing the manure substitution rate based on phosphorus fertilizer to enhance soil phosphorus turnover and root uptake in pepper (Capsicum)

Optimizing the manure substitution rate based on phosphorus fertilizer to enhance soil phosphorus turnover and root uptake in pepper (Capsicum)

Enhancing phosphorus bioavailability in lateritic red soil: Combining Bacillus subtilis inoculated microbial organic fertilizer with reduced chemical input

Effects of application of phosphate and phosphate-solubilizing bacteria on bacterial diversity and phosphorus fractions in a Phaeozems

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