Changes in soil phosphorus fractions following sole cropped and intercropped maize and faba bean grown on calcareous soil

Liao, Dan; Zhang, Chaochun; Li, Haigang; Lambers, Hans; Zhang, Fusuo

doi:10.1007/s11104-020-04460-0

Cited by 60 publications

(40 citation statements)

References 85 publications

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“…Maize ( Zea mays L.), as an important food and feed crop, is often limited by low soil P, and ensuring its production is crucial for food security (Shen et al., 2013). Intercropping maize with leguminous plant species with different root foraging strategies was beneficial for improving P nutrition and increasing maize yield (Li et al., 2020; Liao et al., 2020). For instance, maize/faba bean mixture is one of the most used cropping systems, widely popular in the northwest of China due to the enhancement of P‐use efficiency and crop productivity (Li, et al., 2007).…”

Section: Introductionmentioning

confidence: 99%

The niche complementarity driven by rhizosphere interactions enhances phosphorus‐use efficiency in maize/alfalfa mixture

Wang

Hou

Zhang

et al. 2020

Food and Energy Security

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Section: Introductionmentioning

confidence: 99%

The niche complementarity driven by rhizosphere interactions enhances phosphorus‐use efficiency in maize/alfalfa mixture

Wang

Hou

Zhang

et al. 2020

Food and Energy Security

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“… a P fractions were classified according to Crews & Brookes (2014) and Liao, Zhang, Li, Lambers, & Zhang (2020) …”

Section: Resultsmentioning

confidence: 99%

Changes in soil phosphorus availability and associated microbial properties after chicken farming in Lei bamboo (Phyllostachys praecox) forest ecosystems

Gai

Zhu

et al. 2021

Land Degrad Dev

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Bamboo‐chicken farming (BCF) is a popular bamboo complex management model in Southeast Asia. However, the effects of BCF on phosphorus (P) availability and associated soil microbial communities remain poorly understood. In this study, we compared the soil properties, P fractions, phosphatase activities, and bacterial community compositions in the surface soil (0–20 cm) of a typical BCF system under different grazing densities [represented as distances of 5, 15, 25, 35, and > 60 m (control site) from the henhouse, respectively]. We observed that total P (Pt) accumulation was more rapid than that of SOC and TN with increasing grazing density. Labile and moderately labile P dominated soil P accumulation under BCF. Resin‐Pi, NaHCO3‐Pi, and 1 M HCl‐Pi increased by 100–233%, 83–183%, and 414–1,314%, respectively, compared with the control. The ratio of labile and moderately labile organic P to the Pt content decreased significantly with increasing grazing density from 38.54% (control) to 17.65% (5 m site). Soil phosphatase activity increased with increasing grazing density, suggesting that BCF effectively promoted the mineralization of soil Po. Inorganic P (Resin‐Pi, NaHCO3‐Pi, and 1 M HCl‐Pi) was positively correlated with Flavobacterium, Pseudomonas, and Arthrobacter but negatively correlated with Burkholderia; this highlights the different functional bacteria involved in P cycling. We conclude that BCF generally increased soil P availability and supply capacity, and the changes in P forms were closely related to changes in soil bacterial community composition. The highly labile P and low C : P ratio under high grazing density conditions may cause soil nutrient imbalance and P leaching.

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“…They were soaked in a saturated CaSO 4 solution for 12 h and then grown for 48 h in Petri dishes covered with wet lter papers. After emergence of the radicle, two maize seedlings or four faba bean seedlings were kept in each pot for the corresponding sole cropping, which was consistent with the density in a eld study (Liao et al 2020). To keep plant density consistent between cropping systems, one maize seedling and two faba bean seedlings were grown in each pot for intercropping.…”

Section: Growth and Harvest Of The Rst Cultivationmentioning

confidence: 92%

“…Phosphorus conversion in soil could be greatly affected by practices such as sole cropping or intercropping, which has attracted increasing attentions from scientists (Hinsinger et al 2011;Li et al 2007;Li et al 2008;Liao et al 2020). Intercropping, referring to two or more crops grown together at one eld for a certain period, is a system with high e ciency in P use (Tang et al 2020;Wang et al 2020), and the mechanisms behind are increasingly explored in different studies.…”

Section: Introductionmentioning

confidence: 99%

Adding Intercropping Maize and Faba Bean Root Residues Increases Phosphorus Bioavailability in a Calcareous Soil Due to Organic Phosphorus Mineralization

Liao

Zhang

Lambers

et al. 2021

Preprint

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Background and aims Root residues are an important factor influencing soil phosphorus (P) availability for crop uptake, but how the residues from different species combinations in sole cropping or intercropping systems affect soil P pools remains unclear. Methods Maize and faba bean were planted as either sole crops or intercrops in a P-deficient calcareous soil with and without addition of corresponding previous crop (pre-crop) roots. This was repeated in three cultivations cycles in a greenhouse experiment. Plants sampled in each experiment were analyzed for biomass and P content, and soils sampled from all treatments in the last cultivation were analyzed for soil characteristics. Results Addition of a mixture of intercrop root residues increased biomass, total P content, microbial biomass P concentration and soil acid phosphatase activity, compared with addition of root residues of a single crop. The Hedley soil P fractions from three continuous cultivation cycles differed, depending on root residue source. The sole maize root residue with high C/P ratio caused a considerable depletion of inorganic P (NaHCO3-Pi, NaOH-Pi and 1 M HCl-Pi), and the sole faba bean root residue with lower C/P ratio caused a large depletion in Resin-P and NaHCO3-Po fractions, and the root residue of intercrops with a medium C/P ratio depleted more of the NaHCO3-Po and conc. HCl-Po fractions. However, without root residues, sole faba bean depleted more of the Resin-P, NaHCO3-Pi, NaOH-Pi and NaHCO3-Po fractions than the other two cropping systems did because of its higher P content. Conclusions Adding root residues of mixed species accelerated soil organic P mineralization (NaHCO3-Po and conc. HCl-Po) by increasing microbial biomass P concentrations and acid phosphatase activities, and thus enhanced the intercropping advantage in terms of biomass and P content in a P-deficient soil.

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Changes in soil phosphorus fractions following sole cropped and intercropped maize and faba bean grown on calcareous soil

Cited by 60 publications

References 85 publications

The niche complementarity driven by rhizosphere interactions enhances phosphorus‐use efficiency in maize/alfalfa mixture

The niche complementarity driven by rhizosphere interactions enhances phosphorus‐use efficiency in maize/alfalfa mixture

Changes in soil phosphorus availability and associated microbial properties after chicken farming in Lei bamboo (Phyllostachys praecox) forest ecosystems

Adding Intercropping Maize and Faba Bean Root Residues Increases Phosphorus Bioavailability in a Calcareous Soil Due to Organic Phosphorus Mineralization

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