Polyphosphate fertilizers increased maize (Zea mays L.) P, Fe, Zn, and Mn uptake by decreasing P fixation and mobilizing microelements in calcareous soil

Gao, Yanju; Wang, Xuewei; Shah, Jawad Ali; Chu, Guixin

doi:10.1007/s11368-019-02375-7

Cited by 47 publications

(52 citation statements)

References 43 publications

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“…As shown in Table 1 , chickpea plants fertigated with Poly-P under well-watered conditions absorbed much more quantities of micronutrient (Fe, Cu, Mn) compared to the Ortho-P and the unfertilized treatments. These findings can be explained by the positive effect of Poly-P fertilizer on micronutrients availability in the soil as revealed by Gao et al 24 , who reported that Poly-P fertilizer had the capacity to chelate micronutrients (Fe, Zn, and Mn), which significantly improved their uptake in maize plants under alkaline soil conditions. However, in our study, we demonstrate that strong chelation of micronutrients by the Poly-P may greatly reduce their availability for plants, especially when the hydrolysis process of the Poly-P fertilizer is impacted due to the low soil moisture content (Table 1 ).…”

Section: Discussionmentioning

confidence: 80%

“…The increased P uptake in the Poly-P-I1 treatment was accompanied by significant increases in nutrient uptake (N, K, Fe, Zn, Cu, and Mn). These results may be explained by the positive synergy between P, N and K and by the aptitude of Poly-P to chelate and release micronutrients for plant roots 24 , 69 , 70 . However, for the Ortho-P form, our results revealed that chickpea plants kept a stable response in terms of P uptake improvement under all studied water irrigation regimes.…”

Section: Discussionmentioning

confidence: 99%

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Interactive effect of soil moisture content and phosphorus fertilizer form on chickpea growth, photosynthesis, and nutrient uptake

Chtouki

Laaziz

Naciri

et al. 2022

Sci Rep

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Water shortage and soil nutrient depletion are considered the main factors limiting crops productivity in the Mediterranean region characterized by longer and frequent drought episodes. In this study, we investigated the interactive effects of P fertilizer form and soil moisture conditions on chickpea photosynthetic activity, water and nutrient uptake, and their consequent effects on biomass accumulation and nutrient use efficiency. Two P fertilizer formulas based on orthophosphates (Ortho-P) and polyphosphates (Poly-P) were evaluated under three irrigation regimes (I1: 75% of field capacity, I2: 50% FC and I3: 25% FC), simulating three probable scenarios of soil water content in the Mediterranean climate (adequate water supply, medium, and severe drought stress), and compared to an unfertilized treatment. The experiment was conducted in a spilt-plot design under a drip fertigation system. The results showed significant changes in chickpea phenotypic and physiological traits in response to different P and water supply regimes. Compared with the unfertilized treatment, the stomata density and conductance, chlorophyll content, photosynthesis efficiency, biomass accumulation, and plant nutrient uptake were significantly improved under P drip fertigation. The obtained results suggested that the P fertilizer form and irrigation regime providing chickpea plants with enough P and water, at the early growth stage, increased the stomatal density and conductance, which significantly improved the photosynthetic performance index (PIABS) and P use efficiency (PUE), and consequently biomass accumulation and nutrient uptake. The significant correlations established between leaf stomatal density, PIABS, and PUE supported the above hypothesis. We concluded that the Poly-P fertilizers applied in well-watered conditions (I1) performed the best in terms of chickpea growth improvement, nutrient uptake and use efficiency. However, their effectiveness was greatly reduced under water stress conditions, unlike the Ortho-P form which kept stable positive effects on the studied parameters.

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Section: Discussionmentioning

confidence: 80%

Section: Discussionmentioning

confidence: 99%

Interactive effect of soil moisture content and phosphorus fertilizer form on chickpea growth, photosynthesis, and nutrient uptake

Chtouki

Laaziz

Naciri

et al. 2022

Sci Rep

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“…Only few studies have reported that PolyPs efficiency can be attributed to their higher and longer-term P availability during the whole crop growth period [ 9 , 18 – 21 ]. Recently, Gao et al [ 15 ] reported that ammonium PolyP significantly enhanced maize biomass (especially root biomass), P uptake, and P fertilizer use efficiency compared to plants fertilized with ammonium P. It is also reported a positive correlation between Olsen-P, maize dry weight, and P-uptake [ 15 ]. Furthermore, ammonium PolyP application not only had significantly increased P uptake, but also micronutrient availability (e.g., Fe, Mn, and Zn), which accounted for additional agronomic benefits of PolyPs [ 14 , 15 , 22 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

Polyphosphate application influences morpho-physiological root traits involved in P acquisition and durum wheat growth performance

et al. 2022

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Background Among phosphate (P) fertilizers, polyphosphates (PolyPs) have shown promising results in terms of crop yield and plant P nutrition. However, compared to conventional P inputs, very little is known on the impact of PolyPs fertilizers on below- and above-ground plant functional traits involved in P acquisition. This study aims to evaluate agro-physiological responses of durum wheat variety ´Karim´ under different PolyPs applications. Three PolyPs fertilizers (PolyA, PolyB, and PolyC) versus one orthophosphate (OrthoP) were applied at three doses; 30 (D30), 60 (D60), and 90 (D90) kg P/ha under controlled conditions. The PolyPs (especially PolyB and PolyC) application at D60 significantly increased morphophysiological root traits (e.g., RL: 42 and 130%; RSA:40 and 60%), shoot inorganic P (Pi) content (159 and 88%), and root P acquisition efficiency (471 and 296%) under PolyB and PolyC, respectively compared to unfertilized plants. Above-ground physiological parameters, mainly nutrient acquisition, chlorophyll content and chlorophyll fluorescence parameters were also improved under PolyB and PolyA application at D60. A significant and positive correlation between shoot Pi content and rhizosphere soil acid phosphatase activity was observed, which reveal the key role of these enzymes in PolyPs (A and B) use efficiency. Furthermore, increased P uptake/RL ratio along with shoot Pi indicates more efficient P allocation to shoots with less investment in root biomass production under PolyPs (especially A and B). Conclusions Under our experimental conditions, these findings report positive impacts of PolyPs on wheat growth performance, particularly on photosynthesis and nutrient acquisition at D60, along with modulation of root morpho-physiological traits likely responsible of P acquisition efficiency.

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“…Different P sources (ortho-P vs. poly-P) significantly influenced phosphorus availability and transformation ( McBeath et al, 2005 ; Wang & Chu, 2015 ; Gao et al, 2019 ). Polyphosphates (poly-P) are superior over ortho-P fertilizers ( Hamilton et al, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

“…This may largely be ascribed to its slow release characteristic ( Kulakovskaya, Vagabov & Kulaev, 2012 ; Hamilton, Hilger & Peak, 2016 ). Following this, polyphosphate application significantly increased soil available P ( Gao et al, 2019 ) and improved crop yield ( Holloway et al, 2004 ). However, other studies showed that polyphosphate (ammonium polyphosphate, APP) had no obvious advantage or even less than ortho-P fertilizer (granular monoammonium phosphate, MAP) in increasing soil P availability and crop yield ( Ottman, Thompson & Doerge, 2006 ).…”

Section: Introductionmentioning

confidence: 99%

Short-chain soluble polyphosphate fertilizers increased soil P availability and mobility by reducing P fixation in two contrasting calcareous soils

Shah

Chu

2021

PeerJ

Self Cite

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Short-chain polyphosphate fertilizers have been increasingly applied in agriculture, but little is known about the chemical behaviors of polyphosphate in soils. Herein, a cylinder experiment was carried out to investigate the influences of different P types (i.e., mono-ammonium phosphate (MAP), phosphoric acid (PA) and ammonium polyphosphate (poly-P)) and their application methods (single vs split) on the mobility and availability of P in soil through a column millimeter-scale slice cutting method; meanwhile a soil microcosm experiment (560-day) was conducted to investigate the effects of different P types on phosphorus dynamic transformation. Polyphosphate addition significantly increased P mobility. The average distance of P downward movement (81.5 mm) in soil profile in the poly-P application treatment increased by 33.6% and 81.1%, respectively, compared to the MAP and PA treatments. Different P application methods also markedly influenced phosphorus mobility. For instance, the average distance of P vertical movement in the split P application treatment was 21.2% higher than in the single application treatment, indicating that split P addition significantly increased P downward movement. Moreover, polyphosphate application decreased soil P fixation by blocking the transformation of the applied-P from labile to recalcitrant forms (HCl-P and residual-P). Overall, our findings provide meaningful information to current phosphorus fertilization practice in increasing soil P mobility and bioavailability. We suggest that polyphosphate could be regarded as an alternative P source used in agriculture, and split polyphosphate application is recommended as an effective P fertilization strategy.

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Polyphosphate fertilizers increased maize (Zea mays L.) P, Fe, Zn, and Mn uptake by decreasing P fixation and mobilizing microelements in calcareous soil

Cited by 47 publications

References 43 publications

Interactive effect of soil moisture content and phosphorus fertilizer form on chickpea growth, photosynthesis, and nutrient uptake

Interactive effect of soil moisture content and phosphorus fertilizer form on chickpea growth, photosynthesis, and nutrient uptake

Polyphosphate application influences morpho-physiological root traits involved in P acquisition and durum wheat growth performance

Short-chain soluble polyphosphate fertilizers increased soil P availability and mobility by reducing P fixation in two contrasting calcareous soils

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