Impact of land use and nutrient addition on phosphatase activities and their relationships with organic phosphorus turnover in semi-arid grassland soils

Tian, Jihui; Wei, Kai; Condron, Leo M.; Chen, Zhenhua; Xu, Zhiling; Chen, Lijun

doi:10.1007/s00374-016-1110-z

Cited by 51 publications

(34 citation statements)

References 42 publications

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“…In agreement with this, we found a strong correlation between soil TOP concentrations and aboveground P stocks. Similarly, it has been observed in an Inner Mongolian grassland‐steppe that combined N and P addition increased TOP concentrations by 8% compared to the control (Tian et al ). Although organic P is not directly plant available, it is highly relevant for plant nutrition because most of the soil organic P can be rendered available through phosphatases that catalyze the hydrolysis of organic P (Tiessen et al , Helfenstein et al ).…”

Section: Discussionmentioning

confidence: 57%

Interactions of nitrogen and phosphorus cycling promote P acquisition and explain synergistic plant‐growth responses

Schleuß

Widdig

Heintz‐Buschart

et al. 2020

Ecology

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Citation: Schleuss, P. M., M. Widdig, A. Heintz-Buschart, K. Kirkman, and M. Spohn. 2020. Interactions of nitrogen and phosphorus cycling promote P acquisition and explain synergistic plant-growth responses.Abstract. Plant growth is often co-limited by nitrogen (N) and phosphorus (P). Plants might use one element to acquire another (i.e., trading N for P and P for N), which potentially explains synergistic growth responses to NP addition. We studied a 66-yr-old grassland experiment in South Africa that consists of four levels of N addition with and without P addition. We investigated the response of aboveground net primary production (ANPP) to N and P addition over the last 66 yr. Further, we tested whether phosphatase activity and plant P uptake depend on N availability, and vice versa, whether non-symbiotic N 2 fixation and plant N uptake depend on P availability. We expected that the interaction of both elements promote processes of nutrient acquisition and contribute to synergistic plant growth effects in response to NP addition. We found synergistic N and P co-limitation of ANPP for the period from 1951 to 2017 but the response to N and P addition diminished over time. In 2017, aboveground P stocks, relative rRNA operon abundance of arbuscular mycorrhizal fungi, and soil organic P storage increased with N fertilization rate when N was added with P compared to the treatment in which only N was added. Further, N addition increased phosphatase activity, which indicates that plants used N to acquire P from organic sources. In contrast, aboveground N stocks and non-symbiotic N 2 fixation did not change significantly due to P addition. Taken together, our results indicate that trading N for P likely contributes to synergistic plant-growth response. Plants used added N to mobilize and take up P from organic sources, inducing stronger recycling of P and making the plant community less sensitive to external nutrient inputs. The latter could explain why indications of synergistic co-limitation diminished over time, which is usually overlooked in short-term nutrient addition experiments.

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Section: Discussionmentioning

confidence: 57%

Interactions of nitrogen and phosphorus cycling promote P acquisition and explain synergistic plant‐growth responses

Schleuß

Widdig

Heintz‐Buschart

et al. 2020

Ecology

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“…P fertilization may have also increased acid phosphomonoesterase activity via enhanced root biomass, because plant roots can be a major source of this phosphatase (Nannipieri et al 2011;Renella et al 2006). For example, increases in acid phosphomonoesterase in grassland soils receiving N and P (10 g N, P m −2 year −1 ) compared to unfertilized grassland soils were partly attributed to the nearly doubling of root biomass as a result of fertilization (Tian et al 2016).…”

Section: Benefits Of P Fertilization For Microbial and Enzymatic P Cymentioning

confidence: 99%

Biological P cycling is influenced by the form of P fertilizer in an Oxisol

et al. 2017

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Phosphate rock (PR) is an alternative fertilizer to increase the P content of P-deficient weathered soils. We evaluated the effects of fertilizer form on indicators of biological cycling of P using an on-farm trial on a Rhodic Kandiudox in western Kenya. Treatment plots were sampled after 13 cropping seasons of P applications as Minjingu phosphate rock (PR) or as triple super phosphate (TSP) (50 kg P ha −1 season −1 ), as well as a P-unfertilized control (0 kg P ha −1 season −1 ). Soils (0-15 and 15-30 cm) were analyzed for microbial biomass P (P mic ), activities of acid phosphomonoesterase, alkaline phosphomonoesterase, and phosphodiesterase, and sequentially extractable P fractions. P additions as Minjingu PR yielded 299% greater P mic than TSP at 0-15-cm depth despite similar labile P concentrations in the two P fertilization treatments and stimulated activities of acid phosphomonoesterase (+39%). When added in the soluble form of TSP, a greater percentage of total soil P was present in mineral-bound forms (+33% Fe-and Al-associated P). Higher soil pH under Minjingu PR (pH 5.35) versus TSP (pH 5.02) and the P-unfertilized treatment (pH 4.69) at 0-15-cm depth reflected a liming effect of Minjingu PR. The form of P fertilizer can influence biological P cycling in weathered soils, potentially improving P availability under Minjingu PR relative to TSP via enhanced microbial biomass P and enzymatic drivers of P cycling.

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“…These results are consistent with those of Tian et al . (), who showed that P addition significantly increased phospho‐monoesterase and phos‐phodiesterase activities in steppe soil. However, Allison & Vitousek () found that P addition repressed phosphatase activity.…”

Section: Discussionmentioning

confidence: 97%

“…However, Allison & Vitousek () found that P addition repressed phosphatase activity. The different responses of phosphatase activities to P application can be mainly ascribed to the different response of root growth (Tian et al ., ).…”

Section: Discussionmentioning

confidence: 97%

“…S‐ALP activity in soil treated in the wheat season only (PW) mainly changed at the flooding stage (both rice‐seedling and booting stages) compared with the traditional P fertilizer application (PR+W). During the rice‐seedling stage, the greater activity of S‐ALP in the PR+W treatment may be due to the rapid accumulation of organophosphorus (Tian et al ., ; Wei et al ., ). However, during the rice booting stage, the plants treated in the wheat season (PW) had to acquire P released from the soil, increasing S‐ALP activity to mineralize Po and maintain soil available Pi concentration at an appropriate level (Acosta‐Martínez & Tabatabai, ).…”

Section: Discussionmentioning

confidence: 99%

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The use of biologically based phosphorus fractions to evaluate soil P availability in reduced P‐input paddy soils

Yuan

Wang

et al. 2018

Soil Use and Management

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Chemical soil phosphorus (P) extraction has been widely used to characterize and understand changes in soil P fractions; however, it does not adequately capture rhizosphere processes. In this study, we used the biologically based phosphorus (BBP) grading method to evaluate the availability and influencing factors of soil P under four P fertilizer regimes in a typical rice–wheat cropping rotation paddy field. Soil P was assessed after seven rice‐growth seasons at multiple growth stages: the seedling, the booting and the harvest stage. Soil CaCl2‐P, citrate‐P and HCl‐P (inorganic P, Pi) as well as enzyme‐P (organic P, Po) were not significantly different between soil treated with P fertilizer during the wheat season only (PW) and during the rice season only (PR) compared with soil treated during both the rice and the wheat seasons (PR+W) at all three rice‐growth stages. No P fertilizer application during either season (Pzero) significantly reduced the concentration of soil citrate‐P and HCl‐P at the rice‐seedling and harvest stages. Significant correlations were observed between the HCl extraction and Olsen‐P (R2 = 0.823, P < 0.001), followed by enzyme‐P (R2 = 0.712, P < 0.001), citrate‐P (R2 = 0.591, P < 0.001) and CaCl2‐P (R2 = 0.133, P < 0.05). Further redundancy analysis (RDA) suggested that soil alkaline phosphatase (S‐ALP) activity played a role in soil P speciation changes and was significantly correlated with enzyme‐P, citrate‐P and HCl‐P. These results may improve our ability to characterize and understand changes in soil P status while minimizing the overapplication of P fertilizer.

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Impact of land use and nutrient addition on phosphatase activities and their relationships with organic phosphorus turnover in semi-arid grassland soils

Cited by 51 publications

References 42 publications

Interactions of nitrogen and phosphorus cycling promote P acquisition and explain synergistic plant‐growth responses

Interactions of nitrogen and phosphorus cycling promote P acquisition and explain synergistic plant‐growth responses

Biological P cycling is influenced by the form of P fertilizer in an Oxisol

The use of biologically based phosphorus fractions to evaluate soil P availability in reduced P‐input paddy soils

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