Plant biomass management impacts on short-term soil phosphorus dynamics in a temperate grassland

Boitt, Gustavo; Simpson, Zachary P.; Tian, Jihui; Black, Amanda; Wakelin, Steven A.; Condron, Leo M.

doi:10.1007/s00374-018-1269-6

Cited by 27 publications

(8 citation statements)

References 53 publications

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“…These are categorized on the phosphorus bond basis into three classes: (a) phosphate esters (sugar phosphates, phospholipids, nucleic acids, inositol phosphates); (b) phosphonatases (C-P bonds); and (c) phosphoric acid anhydrides (adenosine triphosphates and adenosine diphosphates) (Huang et al 2017b). Inorganic phosphorus in the soil comprises phosphates bound to minerals like calcium phosphate, aluminum phosphate, and iron phosphate, which are the predominant source of phosphorus for young plants (Boitt et al 2018).…”

Section: Phosphorus Pool In Soilmentioning

confidence: 99%

Phosphate-Solubilizing Microorganisms: Mechanism and Their Role in Phosphate Solubilization and Uptake

Rawat

Das

Shankhdhar

et al. 2020

J Soil Sci Plant Nutr

347

130

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Phosphorus is the second most critical macronutrient after nitrogen required for metabolism, growth, and development of plants. Despite the abundance of phosphorus in both organic and inorganic forms in the soil, it is mostly unavailable for plant uptake due to its complexation with metal ions in the soil. The use of agrochemicals to satisfy the demand for phosphorus to improve crop yield has led to the deterioration of the ecosystem and soil health, as well as an imbalance in the soil microbiota. Consequently, there is a demand for an alternate cost-effective and eco-friendly strategy for the biofortification of phosphorus. One such strategy is the application of phosphate-solubilizing microorganisms which can solubilize insoluble phosphates in soil by different mechanisms like secretion of organic acids, enzyme production, and excretion of siderophores that can chelate the metal ions and form complexes, making phosphates available for plant uptake. These microbes not only solubilize phosphates but also promote plant growth and crop yield by producing plant-growth-promoting hormones like auxins, gibberellins, and cytokinins, antibiosis against pathogens, 1-aminocyclopropane-1-carboxylic acid deaminase which enhances plant growth under stress conditions, improving plant resistance to heavy metal toxicity, and so on. Pyrroloquinoline quinine (pqq) and glucose dehydrogenase (gcd) are the representative genes for phosphorus solubilization in microorganisms. The content presented in this review paper focuses on different mechanisms and modes of action of phosphate-solubilizing microorganisms, their contribution to phosphorus solubilization, growth-promoting attributes in plants, and the molecular aspects of phosphorus solubilization.

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Section: Phosphorus Pool In Soilmentioning

confidence: 99%

Phosphate-Solubilizing Microorganisms: Mechanism and Their Role in Phosphate Solubilization and Uptake

Rawat

Das

Shankhdhar

et al. 2020

J Soil Sci Plant Nutr

347

130

View full text Add to dashboard Cite

show abstract

“…The applications of different phosphate sources had no influence on soil TOC concentrations (Figure 2), and TNK, P-IER and S-SO4 2concentrations in the soil surface layer of 0-5 cm. This is due to microbial activity, fed by high levels of C in a superficial layer, which has its mineralization potentiated, releasing organic and inorganic forms in the soil solution [30,31]. Thus, this contributes significantly to maintenance of high concentrations of elements in these layers of soil, not being changed by use of different sources of P applied to the soil.…”

Section: Carbon Nitrogen Phosphorus and Sulfur Soil Distribution Ovmentioning

confidence: 99%

Stocks and Distribution of Soil Carbon, Nitrogen, Phosphorus and Sulfur in an Integrated Crop-Livestock System Treated with Phosphates

Guera

Fonseca

Ribeiro

2020

Braz. arch. biol. technol.

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“…This explained why the grain yield of RFR was lower in 2017 than in 2018. The significant advantage of RFM in soil moisture retention may be attributed to the improvement in soil properties before and after manure amendment [30,31]. In this study, contents of organic matter, total N, and total P were increased by 16% (10.9 g kg −1 vs. 12.7 g kg −1 ), 12% (1.06 g kg −1 vs. 1.19 g kg −1 ), and 10% (1.09 g kg −1 vs. 1.20 g kg −1 ), respectively, after the two years' incorporation of sheep manure.…”

Section: Soil Moisture Conservation Of Ridge and Furrow Planting Withmentioning

confidence: 99%

Incorporation of Manure into Ridge and Furrow Planting System Boosts Yields of Maize by Optimizing Soil Moisture and Improving Photosynthesis

et al. 2019

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A sustainable management strategy of soil fertility and cropping system is critical to guaranteeing food security. However, little is known about the effects of soil amendment strategies on crop growth via regulating soil moisture and photosynthesis in a ridge and furrow cropping system. Here, field experiments were carried out in 2017 and 2018 in semi-arid areas of Loess Plateau, northwest China to investigate the effects of integrated use of ridge and furrow planting and manure amendment on grain yields of maize. Four treatments were designed: CK (flat planting with 100% chemical fertilizer), RFC (ridge and furrow planting with 100% chemical fertilizer), RFR (ridge and furrow planting with 100% control-released fertilizer), and RFM (ridge and furrow planting with 50% manure fertilizer + 50% N fertilizer). On average, RFM increased photosynthetic rates (Pn) by 74%, followed by RFR by 47%, and RFC by 26%, compared to CK. Also, stomatal conductance (Cd), transpiration rates (Tr), and intercellular CO2 concentration (Ci) were highest with RFM, followed by RFR and RFC. Averaged across the two years, RFM conserved 10% more soil water storage (SWS) than CK did at harvest, followed by RFR with an increment by 8%. However, RFC consumed more soil water than CK did, with its ETc 8% higher than CK. Consequently, spring maize treated with RFM suffered less drought stress, especially in 2017 when precipitation was insufficient. On average, grain yields and water use efficiency of RFM were increased by 18% and 27%, compared to CK. Structural equation modeling analysis showed that there existed significant positive correlation between SWS in top layers and grain yields, while SWS in deep layers had negative effects on grain yields. In conclusion, the incorporation of manure into ridge and furrow planting system can be an efficient agronomic practice to improve plant photosynthesis, optimize soil moisture, and boost grain yields in semi-arid areas of Loess Plateau, northwest China.

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Plant biomass management impacts on short-term soil phosphorus dynamics in a temperate grassland

Cited by 27 publications

References 53 publications

Phosphate-Solubilizing Microorganisms: Mechanism and Their Role in Phosphate Solubilization and Uptake

Phosphate-Solubilizing Microorganisms: Mechanism and Their Role in Phosphate Solubilization and Uptake

Stocks and Distribution of Soil Carbon, Nitrogen, Phosphorus and Sulfur in an Integrated Crop-Livestock System Treated with Phosphates

Incorporation of Manure into Ridge and Furrow Planting System Boosts Yields of Maize by Optimizing Soil Moisture and Improving Photosynthesis

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