The Global Dilemma of Soil Legacy Phosphorus and Its Improvement Strategies under Recent Changes in Agro-Ecosystem Sustainability

ACS Omega, Journal Year: 2023, Volume and Issue: 8(26), P. 23271 - 23282

Published: June 16, 2023

Phosphorus (P) is one of the six key elements in plant nutrition and effectively plays a vital role all major metabolic activities. It an essential nutrient for plants linked to human food production. Although abundantly present both organic inorganic forms soil, more than 40% cultivated soils are commonly deficient P concentration. Then, inadequacy challenge sustainable farming system improve production increasing population. expected that whole world population will rise 9 billion by 2050 and, therefore, it necessary at same time agricultural strategies broadly expand up 80% 90% handling global dilemma which has affected environment climatic changes. Furthermore, phosphate rock annually produced about 5 million metric tons fertilizers per year. About 9.5 Mt phosphorus enters through crops animals such as milk, egg, meat, fish then utilized, 3.5 physically consumed Various new techniques current practices said be improving P-deficient environments, might help meet requirements However, 4.4% 3.4% dry biomass wheat chickpea, respectively, were increased under intercropping practices, was higher monocropping system. A wide range studies showed green manure crops, especially legumes, soil-available content soil. noted inoculation arbuscular mycorrhizal fungi could decrease recommended fertilizer rate nearly 80%. Agricultural management soil legacy use include maintaining pH liming, crop rotation, intercropping, planting cover consumption modern fertilizers, addition efficient varieties with P-solubilizing microorganisms. Therefore, exploring residual imperative reduce demand industrial while promoting long-term sustainability on scale.

Language: Английский

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A meta-analysis of phosphatase activity in agricultural settings in response to phosphorus deficiency

Soil Biology and Biochemistry, Journal Year: 2021, Volume and Issue: 165, P. 108537 - 108537

Published: Dec. 24, 2021

Phosphorus (P) is a key limiting factor in crop growth and essential for agriculture. As plant uptake of P inefficient, it commonly applied to maintain yields leading range negative environmental issues when excess. Additionally, mineral fertilisers derived from mined rock phosphate, which finite resource that needs be sustainably managed order food security the long-term. Phosphatase activity one several mechanistic responses deficiency plant-soil system, enabling mineralization organic increase availability both plants soil organisms. In this study we address need further understanding role phosphatase enzyme acquisition agricultural settings, using systematic review literature subsequent meta-analysis. We find monoesterase inhibited by inorganic (−23%, −39.8 −2.2%) yet enhanced (+74%, 8.4–232.1%). This indicates important deficient systems, more determining than level deficiency. also investigated other factors such as nitrogen addition, pH substrate changes composition physiology but, none these explained significant variance data. highlight consistent recording reporting additional variables association with assay data, required enable quantification potential utilisation resources agriculture, contribution semi-natural ecosystems.

Language: Английский

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Improved phosphorus availability and reduced degree of phosphorus saturation by biochar-blended organic fertilizer addition to agricultural field soils

Chemosphere, Journal Year: 2023, Volume and Issue: 317, P. 137809 - 137809

Published: Jan. 10, 2023

Language: Английский

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Realising the circular phosphorus economy delivers for sustainable development goals

npj Sustainable Agriculture, Journal Year: 2023, Volume and Issue: 1(1)

Published: Oct. 4, 2023

Abstract While it remains debated if mineral deposits mined for phosphorus fertilizer are running out, insecurity is an emerging global issue. We explore how linked to the current linear economy (LPE) and historic implications. The problems multifold: there geopolitical concerns over held only by a few nations, sharply rising costs of fertilizers, heavy metal contaminants affecting soil food, problematic mining wastes, environmental degradation caused inefficiencies. Here we argue that new can resolve these problems. Transitioning sustainable use demands circular (CPE). A CPE supports several Sustainable Development Goals enables greater autonomy. illustrate with case studies outline opportunities change. will feature recovery facilities, waste valorisation technologies, improved formulations customized target crops crop systems. highlight examples rapidly advancing essential agriculture.

Language: Английский

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A critical review of soil phosphorus dynamics and biogeochemical processes for unlocking soil phosphorus reserves

Advances in agronomy, Journal Year: 2024, Volume and Issue: unknown, P. 153 - 249

Published: Jan. 1, 2024

Language: Английский

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Plant-microbe interactions in the rhizosphere for smarter and more sustainable crop fertilization: the case of PGPR-based biofertilizers

Frontiers in Microbiology, Journal Year: 2024, Volume and Issue: 15

Published: Aug. 8, 2024

Biofertilizers based on plant growth promoting rhizobacteria (PGPR) are nowadays gaining increasingly attention as a modern tool for more sustainable agriculture due to their ability in ameliorating root nutrient acquisition. For many years, most research was focused the screening and characterization of PGPR functioning nitrogen (N) or phosphorus (P) biofertilizers. However, with increasing demand food using far fewer chemical inputs, new investigations have been carried out explore potential use such bacteria also potassium (K), sulfur (S), zinc (Zn), iron (Fe) In this review, we update biofertilizers smarter crop production deliberate prospects microbiome engineering-based methods tools shed light improvement mineral nutrition. The current era omics revolution has enabled design synthetic microbial communities (named

Language: Английский

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Soil phosphorus forms and fertilizer use efficiency are affected by tillage and soil acidity management

Geoderma, Journal Year: 2023, Volume and Issue: 435, P. 116495 - 116495

Published: May 17, 2023

Liming combined with no-tillage (NT) can increase the efficiency of P use by accumulating soil in more available forms and improving root exploration due to absence toxic Al3+. This study aimed evaluate long-term effect different combinations tillage managements liming a subtropical Oxisol on accumulation forms, legacy index, efficiency. A experiment was used, established 1987 testing (i) conventional lime (lime-CT) control (control-CT), (ii) NT (lime-NT) (control-NT), (iii) occasional (lime-OT). The NPK fertilization same for all treatments. accumulated grain yield 56 crops between 2019 were evaluated. In 2019, samples collected 0–5, 5–10, 10–20 cm layers submitted sequential chemical fractionation P, indexes, acidity parameters. results reveal that is necessary correct crop yields efficiency, regardless management used. enhanced when correction conservation systems such as NT. Furthermore, after incorporation, be done surface, without need repeat operation ensuring high even than four decades.

Language: Английский

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An insight into the role of the organic acids produced by Enterobacter sp. strain 15S in solubilizing tricalcium phosphate: in situ study on cucumber

BMC Microbiology, Journal Year: 2023, Volume and Issue: 23(1)

Published: July 12, 2023

Abstract Background The release of organic acids (OAs) is considered the main mechanism used by phosphate-solubilizing bacteria (PSB) to dissolve inorganic phosphate in soil. Nevertheless, little known about effect individual OAs produced a particular PSB soil–plant system. For these reasons, present work aimed at investigating Enterobacter sp. strain 15S and exogenous application its on (i) solubilization tricalcium (TCP), (ii) plant growth (iii) P nutrition cucumber. To this purpose two independent experiments have been performed. Results In first experiment, carried out vitro, solubilizing activity was associated with citric, fumaric, ketoglutaric, malic, oxalic acids. second cucumber plants were grown Leonard jar system consisting nutrient solution supplemented previously identified (jar’s base) substrate insoluble TCP where top). use secreted proved be efficient situ solubilization. particular, enhancement morpho-physiological traits P-starved evident when treated 15S, oxalate, or citrate. highest accumulation roots shoots induced such treatments further corroborated hypothesis. Conclusion our study, results presented suggest that released as well bacterium itself can enhance P-acquisition plants.

Language: Английский

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Inoculation of phosphate-solubilizing bacteria improves soil phosphorus mobilization and maize productivity

Nutrient Cycling in Agroecosystems, Journal Year: 2023, Volume and Issue: 126(1), P. 21 - 34

Published: March 31, 2023

Abstract Phosphate-solubilizing bacteria represent a bioalternative in making soil-immobilized phosphorus (P) available to plants, and consequently improve agriculture sustainability reduce nutrient pollution. In this study, we examined whether Rhizobium sp. B02 inoculation can affect the soil P fractions. Moreover, investigated how influences growth, physiological traits, productivity of maize crop. Field tests were carried out evaluate combined application strain reduced doses fertilizer. Soil fractionation was performed after crop harvesting, assessing dynamics. To study plant response, samplings three phenological stages—the vegetative stage 7 fully emerged leaves with leaf collars (V7), tassel (VT), reproductive maturity (R6). Using 50% fertilizer recommended, increased labile inorganic fraction by 14% compared control treatment at same dose, indicating that it favored Pi mobility. Under these conditions V7 VT stages, significantly improved shoot length (28 3%) dry weight (9.8 12%). grain yield 696 kg ha −1 using recommended rate fertilizer, phenocopying complete fertilization without inoculation. Therefore, replaced availability.

Language: Английский

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Effects of land use changes on the potential for soil to contribute phosphorus loads in watersheds

Environmental Development, Journal Year: 2023, Volume and Issue: 45, P. 100825 - 100825

Published: Feb. 25, 2023

Language: Английский

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