Changes in phosphorus fractions caused by increased microbial activity in forest soil in a short-term incubation study

Kunito, Takashi; Hiruta, Naomi; Miyagishi, Yasunori; Sumi, Hirotaka; Moro, Hitoshi

doi:10.1080/09542299.2018.1433555

Cited by 20 publications

(6 citation statements)

References 21 publications

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“…For example, the P o -NaHCO 3 fraction increased strongly after experimental leaf litter addition to forest soils (Mirabello et al 2013). In another study, soil P o -NaOH in a forest soil increased one month after experimental leaf litter addition (Kunito et al 2018).…”

Section: Litterfall Input and P Fractionsmentioning

confidence: 62%

Soil phosphorus fractions and their relation to leaf litterfall in a central Amazonian terra firme rainforest

et al. 2022

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Phosphorus (P) cycling is an important yet poorly studied aspect of the macronutrient balance in tropical rainforest ecosystems. As soil P occurs in different organic and inorganic forms (fractions) with varying degrees of lability, we hypothesized that these fractions will vary between soil types, and temporally within soil types. Additionally, we hypothesized a direct influence of leaf litterfall P input on soil total P and soil P fractions. We collected soil and leaf litter samples from three soil types in a central Amazonian lowland rainforest in Brazil over five months, and used a modified Hedleys fractionation method to determine six organic and inorganic soil P fractions, and also total, labile and residual P. Leaf litterfall P concentrations were determined colorimetrically. Soil inorganic and organic P fractions varied between soil types and across months, but soil type and month interactions were mostly non-significant. Some inorganic P fractions (Pi-NaOH) peaked while the organic fractions (Po-NaOH) fell and vice versa. Leaf litterfall production and leaf litterfall P input peaked around two months following the wettest month. Leaf litterfall P input was a significant predictor of Po-NaHCO3, a bioavailable P fraction. Future studies on P cycling in terrestrial ecosystems should examine the roles played by individual soil P fractions as they cycle asynchronistically and differently across soil types.

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Section: Litterfall Input and P Fractionsmentioning

confidence: 62%

Soil phosphorus fractions and their relation to leaf litterfall in a central Amazonian terra firme rainforest

et al. 2022

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“…The quantity of phosphorus available for plants depends on the degree of decomposition of soil organic matter, soil microbiological activity and relations with other ions. For example, while aluminium and iron compounds form insoluble phosphates in a strongly acidic pH, in a strongly alkaline environment, phosphorus assimilability may be reduced by calcium excess [36][37][38]. In the accumulation zone, despite higher levels of total phosphorus and higher biochemical activity that favors the release of phosphorus, a strongly acidic pH and high concentration of aluminium limits its uptake by plants.…”

Section: Discussionmentioning

confidence: 99%

Nutrient Status of Tree Seedlings in a Site Recovering from a Landslide

Lasota

Kraj

Honkowicz

et al. 2020

Forests

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The aim of the study was to investigate the effect of soil recovery after a landslide on the nutritional status of a young generation of Silver fir (Abies alba Mill.) and Silver birch (Betula pendula Roth.) trees. The study was carried out on the site of a landslide that took place in 2010 in the Gorlice Forest District (Southern Poland). Basic soil properties, macro, and microelements content and enzymatic activity were determined in the soil samples that were collected from across the landslide area, from locations distributed by a grid 10 × 10 m (18 points). Plant material samples, collected to indicate nutritional status, were also taken from each point. Results demonstrate that the nutritional status of emerging regeneration depends on soil acidification and soil organic matter content. The pH of the soils on the landslide determines the intensity of nutrient uptake by the young seedlings. The nutrition of young trees varied across the landslide zone, differing in terms of the soil’s organic matter content and its chemical properties. In comparison to the depletion zone, the accumulation zone proved to be substantially richer in soil organic matter, resulting in higher soil biochemical activity. The study demonstrates that Silver birch (Betula pendula Roth.) is improving nutrient cycling in areas disturbed by landslide.

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“…The management of soil nutrient at sufficient level is important for maintaining high quality [35][36][37]. The blocked SPH and its degraded products can improve the quantity and activity of microorganisms in soil and increase crop yields [8,38,39]. In summary, the release pattern of modified UF fertilizer can be regulated by SPH to match the maize needs.…”

Section: Discussionmentioning

confidence: 99%

Soybean protein hydrolysate-formaldehyde-urea block copolymer for controlled release fertilizer

Liu

Huang

et al. 2019

Environmental Pollutants and Bioavailability

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Urea formaldehyde (UF) was modified by the soybean protein hydrolysate (SPH) to adjust the rate of nitrogen, phosphorus, and potassium (NPK) release. The SPH section can copolymerize into the UF molecules. The crystallinity of modified UF fertilizer decreased with increasing SPH content. The surface of SPH-modified UF fertilizer was loose and porous. The nitrogen content of SPH-modified UF fertilizer decreased a little, but the nitrogen, phosphorus and potassium release rate was improved with increasing SPH content in modified fertilizer. The grain number per ear, thousand-grain weight and total yield were improved by the SPH-modified UF fertilizer. Compared to UF and control, protein, starch, fat, soluble sugar and vitamin C in the maize were increased by applying SPH-modified UF fertilizer. The results indicated that the nutrient release behavior can be adjusted by the introduced SPH to match the maize needs.

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Changes in phosphorus fractions caused by increased microbial activity in forest soil in a short-term incubation study

Cited by 20 publications

References 21 publications

Soil phosphorus fractions and their relation to leaf litterfall in a central Amazonian terra firme rainforest

Soil phosphorus fractions and their relation to leaf litterfall in a central Amazonian terra firme rainforest

Nutrient Status of Tree Seedlings in a Site Recovering from a Landslide

Soybean protein hydrolysate-formaldehyde-urea block copolymer for controlled release fertilizer

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