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Articoli di riviste sul tema "Soil phosphorus"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2025

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1

Shah, Asad, Jing Huang, Muhammad Numan Khan, et al. "Sole and Combined Application of Phosphorus and Glucose and Its Influence on Greenhouse Gas Emissions and Microbial Biomass in Paddy Soils." Agronomy 12, no. 10 (2022): 2368. http://dx.doi.org/10.3390/agronomy12102368.

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Soil microbial activities are consistently restricted not only by phosphorus availability but also by microbial carbon requirements. Therefore, an incubation experiment was conducted with three soils (QY1, QY2 and QY3) selected on the basis of phosphorus limitation. Results revealed that high N2O emissions, 17.44 µg kg−1, were measured in phosphorus-deficient soil with addition of glucose. In phosphorus-adequate soils, the peaks of N2O emission values in the glucose addition treatment were 20.8 µg kg−d and 24.7 µg kg−1, which were higher than without glucose-added treatments. CH4 emissions wer

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2

YADAV, VINEET, YOGITA DESHMUKH, ANJU PATEL, KUNDAN NARAYAN WASNIK, and PUJA KHARE. "Role of biochar on phosphorus transformation in soil and/or tannery sludge mixtures." Journal of Medicinal and Aromatic Plant Sciences 40, no. 3 (2018): 49–57. http://dx.doi.org/10.62029/jmaps.v40i3.yadav.

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Biochar is used as a solid amendment to stabilize the soil nutrients in otherwise nutrient - deficient soils. In the present study, the mobility of soil phosphorous and phosphomoonoestrases were monitored with respect to biochar amendment. Biochar amendment was used at different application rates with soil and soi sludge mixtures. Soil samples collected at different time intervals were evaluated for phosphorus levels and (acidic and alkaline) phosphatases enzyme activities. The entire data set was subjected to kinetic modeling and results showed that the data was best described by parabolic di

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3

Matula, J. "Relationship between phosphorus concentration in soil solution and phosphorus in shoots of barley." Plant, Soil and Environment 57, No. 7 (2011): 307–14. http://dx.doi.org/10.17221/149/2011-pse.

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Phosphorus concentration in the soil solution of agricultural soils should be a consensus of the agronomic and environmental aspect. Data from literary sources are inconsistent if the method of soil solution extraction from the soil and the method of phosphorus detection are not indicated. In the present paper a simplified procedure of soil solution extraction is used that is derived from the need of water to attain saturated soil paste. Based on barley cultivation in a plant growth chamber on 72 different soils the relationship between P concentration in simulated soil solution and the respon

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4

Xu, Gang, Mengyu Yue, Jiawei Song, and Xiaobing Chen. "Development of soil phosphorus storage capacity for phosphorus retention/release assessment in neutral or alkaline soils." Plant, Soil and Environment 68, No. 3 (2022): 146–54. http://dx.doi.org/10.17221/482/2021-pse.

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The concept of the soil phosphorus storage capacity (SPSC) was successfully used to evaluate the phosphorus (P) loss risk and the P retention capacity of acidic soil. This study extended the concept of SPSC from acidic soil to neutral or alkaline soil. A total of 95 surfaces (0–10 cm) soil samples were collected from the Yellow River Delta (YRD) for use in this study. Batch sorption experiments, correlation analysis, stepwise regression, and a split-line model were used to calculate the threshold value of the degree of P saturation (DPS). The SPSC was developed based on the DPS threshold value

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5

Odon, Clément Ncho, Hippolyte Kouadio Konan-Kan, Emmanuel Franck Gouedji Gnamba, Josiane Karamo Dekape, and Celestina Odoh Nkiruka. "Enhancement of phosphorus utilization and availability in the mountainous region of Man, Côte d'Ivoire." International Journal of Agronomy and Agricultural Research | IJAAR 21, no. 3 (2022): 1–8. https://doi.org/10.5281/zenodo.8233466.

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The soil has a large reserve of phosphorus. However, phosphorus availability for plant nutrition is limited, and mostly in ferralitic tropical soils, determined by the geochemical distribution of elements. In the mountainous region of Man, West Côte d’Ivoire, the geology and geomorphology constitute a particular characteristic which, more or less, could significantly influence soil phosphorus distribution and availability. A study was thus setup to assess soil oxides and mineralogy, and their influence on soil phosphorous content in Man. Four different rice producing sites were sel

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6

Sánchez-Esteva, Sara, Maria Knadel, Rodrigo Labouriau, Gitte H. Rubæk, and Goswin Heckrath. "Total Phosphorus Determination in Soils Using Laser-Induced Breakdown Spectroscopy: Evaluating Different Sources of Matrix Effects." Applied Spectroscopy 75, no. 1 (2020): 22–33. http://dx.doi.org/10.1177/0003702820949560.

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Laser-induced breakdown spectroscopy (LIBS) is a potential alternative to wet chemical methods for total soil phosphorus determination, but matrix effects related to physical and chemical sample properties need to be further understood. The aim of this study was to explore matrix effects linked to particle size distribution and chemical form of phosphorus on LIBS response and the ability of LIBS to predict total phosphorus in a range of different soil types. Univariate calibration curves were developed by spiking the soils with increasing doses of phosphorus, and limits of detection for LIBS d

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7

Adil, Mihoub. "Citric acid acidification of wheat straw derived biochar for overcoming nutrient deficiency in alkaline calcareous soil (Case of Phosphorus)." International Journal of Agricultural Science and Food Technology 8, no. 3 (2022): 248–52. http://dx.doi.org/10.17352/2455-815x.000173.

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Phosphorous fixation in soils is a serious concern worldwide, and biochar is gaining attention daily due to its potential benefits for improving the agronomic benefits of applied phosphorus. The present study aims to enhance understanding of the phosphorus transformation process in a deprived sandy soil following biochar amendments (no-acidified wheat straw biochar and chemically modified (acidification with 0.01 M C6H8O7) along with or without phosphorus at 250 mg kg−1. A 54-day pot experiment was conducted with two biochar levels of 4%, 8% (w/w), and control, and two phosphorus levels (witho

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8

Randive, Vaishali, Tanuja Taru, Vanita Shinde, Pooja Rana, and Rani Bhagat. "Management of soil phosphorous using phosphate solubilizing microorganisms: A sustainable approach." South Asian Journal of Experimental Biology 14, no. 2 (2024): 78–94. http://dx.doi.org/10.38150/sajeb.14(2).p78-94.

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Phosphorus is crucial for plant growth and productivity, and its scarcity in soil negatively affects crop yields. A major portion of chemical phosphate fertilizer precipitates with soil minerals, making it unavailable for plant growth. Phosphate-solubilizing microorganisms play a pivotal role in enhancing phosphorus availability, facilitating better nutrient absorption, and ultimately boosting plant growth. This article presents a brief overview of the phosphorus status in Indian soil, discusses the various forms of phosphorus and its dynamics across different soil types, and analyses the fact

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9

Lei, Hong Jun, Xin Liu, Bei Dou Xi, and Duan Wei Zhu. "Evaluation on a Novel Phosphorus Fractionation Method in Acid Soils." Applied Mechanics and Materials 204-208 (October 2012): 272–78. http://dx.doi.org/10.4028/www.scientific.net/amm.204-208.272.

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Phosphorous fractionation is a method developed to estimate sizes of readily soil available P pool, soil P sub-pools and their ability to replenish the available P. Three types of acid soils (1aterite red soil, yellow red soil and brown red soil) were used in pot experiment under a rain-shelter condition to investigate the effect of lime amendment on P fractions and their bioavailability by plant of broad bean. A novel phosphorus fractionation scheme was developed and used to study the phosphorus fractionation of the tested soils compared with the two typical soil phosphorus fractionation sche

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10

Bhodiwal, Shweta, and Tansukh Barupal. "Phosphate solubilizing microbes: an incredible role for plant supplements." MOJ Ecology & Environmental Sciences 7, no. 5 (2022): 170–72. http://dx.doi.org/10.15406/mojes.2022.07.00263.

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Plants procure phosphorus from soil as the phosphate anion. It is the most un-portable component in plant and soil in comparison to other macronutrients. It’s very well known that phosphorus is the second most significant supplement after the nitrogen required/needed in plant growth. It is a fundamental component in every single living system. Barely 1%-2% of phosphorous is provided to different parts of the plants. It precipitates in soil as orthophosphate or is adsorbed by Fe and Al oxides through legend exchange. Phosphorus-solubilizing bacteria play a substantial part in phosphorus nutriti

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11

Lu, Chun, Soh Sugihara, Haruo Tanaka, Ryosuke Tajima, Shingo Matsumoto, and Takuya Ban. "Phosphorus Dynamics in Japanese Blueberry Field: Long-Term Accumulation and Fractionation across Soil Types and Depths." Agronomy 14, no. 9 (2024): 1947. http://dx.doi.org/10.3390/agronomy14091947.

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Effective phosphorus (P) management is crucial for optimal blueberry production. However, a comprehensive understanding of phosphorus distribution across soil depths and types after two decades of blueberry cultivation remains a challenge. This study examines pH, EC, SOC (soil organic carbon), Total N (total nitrogen), and phosphorus fractions in soils from Japanese blueberry fields that have been cultivated for over 20 years. The soils selected for this study represent typical soils from long-term blueberry-growing regions in Japan, ensuring the relevance of the findings to these key agricult

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12

Prasad, Vishal, Shivani Chaudhary, and Anjali Singh. "Improving Phosphorus Fertility in Soil through Microbial Mediators." INTERNATIONAL JOURNAL OF PLANT AND ENVIRONMENT 4, no. 02 (2018): 74–80. http://dx.doi.org/10.18811/ijpen.v4i02.9.

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Microbes are an important element of the phosphorus cycle operative in the soil and play significant roles in transference of phosphorus between various soil phosphorus pools. Therefore, there has been continued interest in the usage of soil microbes to improve the phosphorus nutrition of plants and increase the overall efficiency of phosphorus use in agricultural systems. This interest originates from the fact that insufficiency of phosphorus is a common problem in soils all over the world, that a foremost cost for agricultural production is due to phosphate fertilizers and that the efficacy

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13

Xu, G., J. N. Sun, R. F. Xu, et al. "Effects of air-drying and freezing on phosphorus fractions in soils with different organic matter contents." Plant, Soil and Environment 57, No. 5 (2011): 228–34. http://dx.doi.org/10.17221/428/2010-pse.

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Little is known about the effects of air-drying and freezing on the transformation of phosphorus (P) fractions in soils. It is important that the way in which soils respond to such perturbations is better understood as there are implications for both P availability and loss to surface waters from soils. In this study, the effects of air-drying and freezing were investigated using two soils, one being a forest soil (FS) high in organic matter and the other being a sterile soil (SS) low in organic matter. Soil P was fractionated using a modified Hedley fractionation method to examine the changes

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14

McKenzie, R. H., and E. Bremer. "Relationship of soil phosphorus fractions to phosphorus soil tests and fertilizer response." Canadian Journal of Soil Science 83, no. 4 (2003): 443–49. http://dx.doi.org/10.4141/s02-079.

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Soil tests for available P may not be accurate because they do not measure the appropriate P fraction in soil. A sequential extraction technique (modified Hedley method) was used to determine if soil test P methods were accurately assessing available pools and if predictions of fertilizer response could be improved by the inclusion of other soil P fractions. A total of 145 soils were analyzed from field P fertilizer experiments conducted across Alberta from 1991 to 1993. Inorganic P (Pi) removed by extraction with an anion-exchange resin (resin P) was highly correlated with the Olsen and Kelow

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15

UUSITALO, R., E. TURTOLA, and J. GRÖNROOS. "Finnish trends in phosphorus balances and soil test phosphorus." Agricultural and Food Science 16, no. 4 (2008): 301. http://dx.doi.org/10.2137/145960607784125339.

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Soil test phosphorus (P) concentration has a major influence on the dissolved P concentration in runoff from agricultural soils. Thus, trends in soil test P partly determine the development of pollution potential of agricultural activities. We reviewed the changes of soil test P and P balances in Finnish agriculture, and assessed the current setting of P loss potential after two Agri-Environmental Programs. Phosphorus balance of the Finnish agriculture has decreased from +35 kg ha1 of the 1980s to about +8 kg P ha1 today. As a consequence, the 50-yr upward trend in soil test P concentration

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16

Lu, Enjia, Cuilan Li, Yidan Geng, Tianfeng Liang, and Jinjing Zhang. "Effects of Long-Term Fertilization on Phosphorus Form and Availability in Black Soil." Applied Sciences 14, no. 24 (2024): 11673. https://doi.org/10.3390/app142411673.

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This study explored the effect of the combined application of chemical and organic fertilizers on phosphorus morphology and its conversion to an active state. A long-term field positioning experiment comprising five treatments was conducted in black soil. The results concluded that the soil total phosphorus (TP), available phosphorus (AP), inorganic phosphorus, and organic phosphorus contents of all treatments ranked as follows: 1.5M1NPK > M2NPK > M1NPK > NPK > CK. The long-term application of chemical and organic fertilizers increased the proportion of soil reactive phosphorus and

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17

Σικαλίδης, Κ., and Ν. Καραγιαννίδης. "UTILIZATION OF MINERAL RAW MATERIALS (INDUSTRIAL BYPRODUCTS) AND THEIR MIXTURES AS SOIL PH AMENDMENTS." Bulletin of the Geological Society of Greece 36, no. 1 (2004): 43. http://dx.doi.org/10.12681/bgsg.16558.

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Limestone, dolomitic stone, huntite, active magnesia and their mixtures as well as phosphorus containing gypsum, all by-products of various industrial activities, were investigated as soil amendments for acidic (pH 4.2 - 4.5) soils from Drama area, N. Greece and alkaline (pH 8.1 - 8.2) soils from Thermi area, N. Greece. Additions of 500 and 350 kg of the industrial by-products or their various mixtures tested, per 1000 sq.meters, improve the soil pH from the strong acidic area to 6.5- 7.5. Active magnesia increases the pH values above 8. Additions of 200 kg of mixtures of limestone and active

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18

Fogat, Sunitha, Rohtas Kumar, Amit Dhankar, Jyoti, and Kavita. "Release Behaviour of Phosphorus and Its Fractions in Different Phosphorus Status Soils." International Journal of Plant & Soil Science 35, no. 8 (2023): 19–25. http://dx.doi.org/10.9734/ijpss/2023/v35i82878.

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Phosphorus is essential to all forms of life and its contribution towards aiding the native soil fertility and sustaining it, is well known. With passage of time, P added to soil undergoes transformation into various unavailable forms. Native P compounds, some being highly insoluble are mostly unavailable for plant uptake. The availability of phosphorus to the plants depends on soil properties, soil pH, soluble iron, aluminum and manganese, calcium minerals, organic matter, activities of microorganisms thus availability of P may vary according to soil types. Knowing the changes in P fractions

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19

Zhang, Jinxin, Liangmin Gao, Zhendong Pang, et al. "Effect of low-molecular-weight organic acids on phosphorus soil activation: A laboratory study of the soils from Wangbeng section of the Huaihe River Basin, China." Plant, Soil and Environment 67, No. 11 (2021): 660–67. http://dx.doi.org/10.17221/379/2021-pse.

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Farmland soil samples from the northern and southern banks of the Wangbeng section of the Huaihe River Basin, China, were collected and treated with three different low-molecular-weight organic acids (LMWOAs) (malic acid, citric acid, oxalic acid). This study aimed to determine how these acids affect soil phosphorus activation. The results showed that the average activation rate of total phosphorus, inorganic phosphorus, Fe/Al-P and Ca-P in soil samples from the southern bank treated with malic and citric acid was above 162%, except for organic phosphorus, with the highest at 192.04%. The thre

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20

Haque, Shama E. "How Effective Are Existing Phosphorus Management Strategies in Mitigating Surface Water Quality Problems in the U.S.?" Sustainability 13, no. 12 (2021): 6565. http://dx.doi.org/10.3390/su13126565.

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Phosphorus is an essential component of modern agriculture. Long-term land application of phosphorous-enriched fertilizers and animal manure leads to phosphorus accumulation in soil that may become susceptible to mobilization via erosion, surface runoff and subsurface leaching. Globally, highly water-soluble phosphorus fertilizers used in agriculture have contributed to eutrophication and hypoxia in surface waters. This paper provides an overview of the literature relevant to the advances in phosphorous management strategies and surface water quality problems in the U.S. Over the past several

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21

Yuan, Qingsong, Ya Gao, Guozhen Ma, et al. "The Long-Term Effect of Biochar Amendment on Soil Biochemistry and Phosphorus Availability of Calcareous Soils." Agriculture 15, no. 5 (2025): 458. https://doi.org/10.3390/agriculture15050458.

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Biochar soil amendment has proven to be beneficial for soil fertility regulation, while the long-term mechanisms under different soil conditions remain largely unexplored. This study was based on two long-term field experiments in calcareous soils to explore the effect of biochar on fertility and phosphorus availability, as well as potential mechanisms. Experiments were conducted on Fluvo-aquic soil (6 years) and Cinnamon soil (5 years), respectively. Biochar was applied once at 20 t/ha level and mixed with the topsoil. We evaluated soil fertility and phosphorus fractions with and without bioc

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22

Wang, Xiaojiao, Hailiang Li, Guopeng Liang, et al. "Phosphorus Fertilization Reduces Soil Microbial Necromass Carbon Content in Tillage Layer of Dry Farmland on Loess Plateau." Agriculture 15, no. 5 (2025): 485. https://doi.org/10.3390/agriculture15050485.

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This study examines how nitrogen and phosphorus fertilization influence soil microbial necromass carbon (MNC) content of farmland on the Loess Plateau, central Gansu. Based on an extensive (6 years) experiment, a control (CK, no fertilization) and three treatment groups employing different fertilization methods, namely, nitrogen fertilization (N, 115 kg·ha−1), phosphorus fertilization (P, 115 kg·ha−1), and combined fertilization of nitrogen and phosphorus (NP, 115 kg·ha−1 each), were set up in this research. The results show that, in the tillage soil layer (within a depth range of 0–20 cm), th

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23

Benhua, Sun, Cui Quanhong, Guo Yun, et al. "Soil phosphorus and relationship to phosphorus balance under long-term fertilization." Plant, Soil and Environment 64, No. 5 (2018): 214–20. http://dx.doi.org/10.17221/709/2017-pse.

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Temporal changes in the concentrations of plant-available phosphorus (P) in soil (Olsen-P), total soil-P and P activation coefficient (the ratio of Olsen-P to residual-P (i.e. an approximation to total-P)) were measured in plots that received consistent inorganic nitrogen, phosphorus and potassium plus organic fertilizers annually. Maize and winter wheat crops were grown in rotation for 24 years. Olsen-P and P activation coefficient declined significantly in the earlier years (&lt; 12 years) for treatments that did not include any P fertilizer, and increased over the same period for the P-

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24

Groppo, J. D., S. R. M. Lins, P. B. Camargo, et al. "Changes in soil carbon, nitrogen and phosphorus due to land-use changes in Brazil." Biogeosciences Discussions 12, no. 3 (2015): 2533–71. http://dx.doi.org/10.5194/bgd-12-2533-2015.

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Abstract. In this paper soil carbon, nitrogen and phosphorus concentrations and related elemental ratios, as well as and nitrogen and phosphorus stocks were investigated in 17 paired sites and in a regional survey encompassing more than 100 pasture soils in the Cerrado, Atlantic Forest, and Pampa, the three important biomes of Brazil. In the paired sites, elemental soil concentrations and stocks were determined in native vegetation, pastures and crop-livestock systems (CPS). Overall, there were significant differences in soil element concentrations and ratios between different land uses, espec

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Dari, Biswanath, Vimala D. Nair, and Willie G. Harris. "Parameters for Site-Specific Soil Phosphorus Loss Modeling from Soil Test Data." EDIS 2017, no. 2 (2017): 4. http://dx.doi.org/10.32473/edis-ss656-2017.

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This 4-page fact sheet is part of the Soil Phosphorus Storage Capacity (SPSC) for Phosphorus Risk Assessment and Management series. This series is intended for use by those who are interested in management practices and policies that minimize the risk of phosphorus loss from soils. Written by Biswanath Dari, Vimala D. Nair, and Willie G. Harris and published by the Department of Soil and Water Sciences, February 2017. SL442/SS656: Parameters for Site-Specific Soil Phosphorus Loss Modeling from Soil Test Data (ufl.edu)

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26

Danilova, A. A. "Optimal doses of phosphorous fertilizers (soil biochemical aspects of the problem)." Siberian Herald of Agricultural Science 49, no. 3 (2019): 5–15. http://dx.doi.org/10.26898/0370-8799-2019-3-1.

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At present, the problem of supplying soils of Siberia with phosphorus has become much more acute in comparison with the past decades. This is due to virtually complete termination of the use of phosphate fertilizers for grain crops and a sharp increase in the price of these fertilizers compared to the price of grain. There are various approaches to diagnosing the pool of phosphorus available to plants, including methods based on the use of phosphatase preparations allowing to assess the mobility of organic phosphorous compounds in the soil. The content of biologically available soil phosphorus

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Groppo, J. D., S. R. M. Lins, P. B. Camargo, et al. "Changes in soil carbon, nitrogen, and phosphorus due to land-use changes in Brazil." Biogeosciences 12, no. 15 (2015): 4765–80. http://dx.doi.org/10.5194/bg-12-4765-2015.

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Abstract. In this paper, soil carbon, nitrogen and phosphorus concentrations and stocks were investigated in agricultural and natural areas in 17 plot-level paired sites and in a regional survey encompassing more than 100 pasture soils In the paired sites, elemental soil concentrations and stocks were determined in native vegetation (forests and savannas), pastures and crop–livestock systems (CPSs). Nutrient stocks were calculated for the soil depth intervals 0–10, 0–30, and 0–60 cm for the paired sites and 0–10, and 0–30 cm for the pasture regional survey by sum stocks obtained in each sampli

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Peng, Shiyu, Xinyao Zhang, Le Sun, et al. "Matching Phosphorus Fertilizer Types with Soil Type in Rice Cultivation Optimizes Yield, Soil Phosphorus Availability, and Phosphorus Fertilizer Use Efficiency." Agriculture 15, no. 2 (2025): 172. https://doi.org/10.3390/agriculture15020172.

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Inefficient phosphorus (P) fertilizer application often accumulates soil P, wasting valuable phosphate resources and contributing to environmental pollution. Given the suboptimal P fertilizer use efficiency (PUE), understanding soil P dynamics and selecting appropriate fertilizers is crucial. Fluvo-aquic soil and yellow-cinnamon soils were used in a rice pot trial to compare five P fertilizer types: single superphosphate (SSP), diammonium phosphate (DAP), calcium magnesium phosphate (CMP), triple superphosphate (TSP), and ammonium polyphosphate (APP), alongside a no P, control (CK). In fluvo-a

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Szara, Ewa, Tomasz Sosulski, and Magdalena Szymańska. "Soil phosphorus sorption properties in different fertilization systems." Plant, Soil and Environment 65, No. 2 (2019): 78–82. http://dx.doi.org/10.17221/696/2018-pse.

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The study aimed at the evaluation of the accumulation and vertical distribution of different forms of phosphorus (P) in reference to phosphorus sorption properties subject to mineral (NPK), mineral-organic (NPK + M), and organic (M) fertilisation. It was carried out in a long-term experimental field in Skierniewice (Central Poland) conducted since 1923 under rye monoculture. Total P content in the M and NPK soil profile was similar and lower than in the NPK + M soil. The content of organic P in A<sub>p</sub> and E<sub>et</sub> horizons of both manured soils was similar

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Matula, J. "Differences in available phosphorus evaluated by soil tests in relation to detection by colorimetric and ICP-AES techniques." Plant, Soil and Environment 56, No. 6 (2010): 297–304. http://dx.doi.org/10.17221/23/2010-pse.

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Differences in the evaluation of soil phosphorus status by three soil tests (Mehlich 3, extraction with NH<sub>4</sub>-acetate and water extraction) were tested on 63 agricultural soils with different agrochemical characteristics from the territory of the Czech Republic. Differences between the colorimetric determination of phosphorus and ICP technique were studied. The median of the values of phosphorus supply in soils determined by soil tests was considerably different. Compared to the colorimetric detection of water extraction of soils the median of the NH<sub>4</sub&gt

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KUPATADZE, Ketevan. "INVESTIGATION OF PHOSPHATE-ION RETENTION STRENGHT IN SOME TYPES OF KAKHETI SOILS." SOUTHERN BRAZILIAN JOURNAL OF CHEMISTRY 27, no. 27 (2019): 1–7. http://dx.doi.org/10.48141/sbjchem.v27.n27.2019.7_2019.pdf.

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The presented article describes the soil types existing in east Georgia, particularly in several villages of Gurjaani Municipality-Vazisubani, Kalauri, Mukuzani, Shashiani. Meadow-brown and brown soils represent good soil types for viticulture development in Kakheti. The vineyards cultivated on these soils produce such wellknown wines as Tsinandali, Vazisubani, Mukuzani, Akhasheni, Gurjaani, Manavi. The study explores brown carbonate and meadow-brown soil lab tests to examine the absorption of phosphate ions by them. The study showed that the amount of phosphorus deposited through soils is suf

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Kupatadze, Ketevan. "Investigation of phosphate-ion retention strenght in some types of Kakheti soils." Southern Brazilian Journal of Chemistry, Volume 27, No. 27, 2019 27, no. 27 (2019): 1–7. http://dx.doi.org/10.37633/sbjc.27(27)2019.1-7.

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Abstract (sommario):

The presented article describes the soil types existing in east Georgia, particularly in several villages of Gurjaani Municipality-Vazisubani, Kalauri, Mukuzani, Shashiani. Meadow-brown and brown soils represent good soil types for viticulture development in Kakheti. The vineyards cultivated on these soils produce such wellknown wines as Tsinandali, Vazisubani, Mukuzani, Akhasheni, Gurjaani, Manavi. The study explores brown carbonate and meadow-brown soil lab tests to examine the absorption of phosphate ions by them. The study showed that the amount of phosphorus deposited through soils is suf

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33

Chen, Quanxun, Jianbo Cheng, Guangliang Tian, et al. "Effects of Biogas Slurry on Microbial Phosphorus Metabolism in Soil of Camellia oleifera Plantations." Land 14, no. 4 (2025): 718. https://doi.org/10.3390/land14040718.

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The use of biogas slurry as an alternative to chemical fertilizers for supplying phosphorus to plants is gaining increasing attention. However, the mechanisms by which biogas slurry activates soil phosphorus and influences phosphorus-metabolizing microorganisms are not yet fully understood. This study characterized the effects of controlled biogas slurry application gradients (0, 13, 27, 40, and 53) on the soil phosphorus structure, camellia oleifera (CO) phosphorus content, microbial phosphorus metabolism functional gene abundance, and phosphorus transformation functions in CO plantation soil

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34

Weaver, DM, GSP Ritchie, and RJ Gilkes. "Phosphorus sorption by gravels in lateritic soils." Soil Research 30, no. 3 (1992): 319. http://dx.doi.org/10.1071/sr9920319.

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Abstract (sommario):

The effect of sesquioxidic gravels (>2 mm size fraction) on phosphorus sorption by two gravelly lateritic soils was investigated by phosphorus sorption experiments, X-ray diffraction, autoradiography and electron microscopy.In one soil the abundance and size of gravels decreased downslope. As the gravel content of both soils increased (13-61%), the proportion of large (>8 mm) gravels increased (0-70%). Phosphorus sorption increased in the order: (>2 mm fraction) < (whole soils) < (<2 mm fraction). Phosphorus sorption on lateritic gravels (>2 mm) decreased with increasing g

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35

Dodd, R. J., R. W. McDowell, and L. M. Condron. "Changes in soil phosphorus availability and potential phosphorus loss following cessation of phosphorus fertiliser inputs." Soil Research 51, no. 5 (2013): 427. http://dx.doi.org/10.1071/sr13168.

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Abstract (sommario):

Long-term application of phosphorus (P) fertilisers to agricultural soils can lead to in the accumulation of P in soil. Determining the rate of decline in soil P following the cessation of P fertiliser inputs is critical to evaluating the potential for reducing P loss to surface waters. The aim of this study was to use isotope exchange kinetics to investigate the rate of decline in soil P pools and the distribution of P within these pools in grazed grassland soils following a halt to P fertiliser application. Soils were sourced from three long-term grassland trials in New Zealand, two of which

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36

Ige, D. V., O. O. Akinremi, and D. N. Flaten. "Evaluation of phosphorus retention equations for Manitoba soils." Canadian Journal of Soil Science 88, no. 3 (2008): 327–35. http://dx.doi.org/10.4141/cjss07075.

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Abstract (sommario):

One of the key factors in phosphorus management is the P retention capacity (PRC) of the soil. In our previous study, we formulated several equations for estimating the phosphorus retention capacity of Manitoba soils. The objectives of the current study were to evaluate these equations using independent soil samples and to evaluate the influence of manure application on the predictive ability of these equations. Forty representative surface soil samples (20 soils with history of manure application and 20 without manure application history) were collected from across Manitoba. The P retention i

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37

CH'NG, HUCK YWIH, OSUMANU HARUNA AHMED, and NIK MUHAMAD AB MAJID. "IMPROVING PHOSPHORUS AVAILABILITY, NUTRIENT UPTAKE AND DRY MATTER PRODUCTION OF ZEA MAYS L. ON A TROPICAL ACID SOIL USING POULTRY MANURE BIOCHAR AND PINEAPPLE LEAVES COMPOST." Experimental Agriculture 52, no. 3 (2015): 447–65. http://dx.doi.org/10.1017/s0014479715000204.

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Abstract (sommario):

SUMMARYPhosphorus deficiency in tropical acid soils is a problem because soluble inorganic phosphorus is fixed by aluminium and iron. Organic amendments could be used to overcome phosphorus fixation in acid soils. Thus, the objectives of this study were to (i) improve soil phosphorus availability using biochar and compost produced from poultry manure and pineapple leaves respectively, and (ii) determine whether the use of biochar and compost could improve phosphorus, nitrogen, potassium, calcium and magnesium uptake and dry matter production of Zea mays L. cultivation on a tropical acid soil.

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38

Hernandez, Jorge David, and Randy Killorn. "Phosphorus fertilizer by-product effect on the interaction of zinc and phosphorus in corn and soybean." Canadian Journal of Soil Science 89, no. 2 (2009): 189–96. http://dx.doi.org/10.4141/cjss07069.

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Abstract (sommario):

The application of high phosphorus fertilizer by-products to farmland is a common practice used to reduce storage volume and disposal cost. However, because Iowa soils are generally high in both phosphorus and zinc, there are environmental and fertility questions concerning their application to farmland. A greenhouse study was conducted to determine the effect of a soil-applied fertilizer by-product on the zinc-phosphorus relationship in corn and soybean plants grown on three Iowa soil series: Belinda, Downs, and Haig. The soils were mixed with a high-phosphorus fertilizer by-product and plant

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39

Alakeh, Mofor Nelson, Njoyim Estella Buleng Tamungang, and Fai Joel Alongifor. "Phosphorus Adsorption and Its Correlation with Physicochemical Properties of Volcanic-Influenced Soils of Meupi-Awing in Northwest Cameroon." Applied and Environmental Soil Science 2022 (August 24, 2022): 1–11. http://dx.doi.org/10.1155/2022/6890503.

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Abstract (sommario):

This study evaluated the physicochemical properties and phosphorus adsorption characteristics of surface soils (0–30 cm) of Meupi on the flank of Mount Lefo-Awing. In volcanic-influenced soils, usually characterized by high acidity, phosphorus is often not readily available to plants, and this deficit tends to limit plant growth. Soil physicochemical properties and phosphorus adsorption studies were carried out using standard techniques. Results of soil physicochemical studies showed that the soils were strongly acidic (pH ranged from 4.7 to 5.1), with low available phosphorus (5.47 to 6.97 mg

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40

Zhao, Ya Jie, Xin Chen, Yi Shi, Cai Yan Lu, Bin Huang, and Mu Qiu Zhao. "Impact of Fertilization and Soil Phosphorus Status on Phosphorus Leaching from Soil in Vegetable Greenhouse." Advanced Materials Research 610-613 (December 2012): 2968–73. http://dx.doi.org/10.4028/www.scientific.net/amr.610-613.2968.

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Abstract (sommario):

The vegetable utilization rate of phosphorus fertilizer in greenhouse condition was low in the season of fertilizer application, resulting in phosphorus accumulation in the top soil year after year. The risk of phosphorus loss through leaching increased under the circumstance of inappropriate watering management and fertilization. In this study, leaching experiments using columns packed with a greenhouse soil with different soil phosphorus status (low, medium and high levels) were carried out under greenhouse condition to investigate the impact of fertilizer application on phosphorus leaching

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41

Ho, Goen E., and Suprihanto Notodarmojo. "Phosphorus movement through soils and groundwater: application of a time-dependent sorption model." Water Science and Technology 31, no. 9 (1995): 83–90. http://dx.doi.org/10.2166/wst.1995.0347.

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Abstract (sommario):

Pollution of groundwater, wetlands, rivers, estuaries and near shore waters by phosphorus is now fairly common due to run-off from agricultural areas and wastewater discharges. In the application of fertilisers in agriculture it has been observed that sandy soils result in high phosphorus concentrations in the run-off. On the other hand loamy soils result in less phosphorus run-off. Phosphate-phosphorus sorption by soils has been observed to be time dependent. A model has been developed to describe the movement of phosphorus through soils to take into account the processes of convection, dispe

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42

Rosolem, Ciro Antonio, and Alexandre Merlin. "Soil phosphorus availability and soybean response to phosphorus starter fertilizer." Revista Brasileira de Ciência do Solo 38, no. 5 (2014): 1487–95. http://dx.doi.org/10.1590/s0100-06832014000500014.

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Abstract (sommario):

Phosphorus fixation in tropical soils may decrease under no-till. In this case, P fertilizer could be surface-spread, which would improve farm operations by decreasing the time spend in reloading the planter with fertilizers. In the long term, less soluble P sources could be viable. In this experiment, the effect of surface-broadcast P fertilization with both soluble and reactive phosphates on soil P forms and availability to soybean was studied with or without fertilization with soluble P in the planting furrow in a long-term experiment in which soybean was grown in rotation with Ruzigrass (B

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43

Moody, Philip W., Simon D. Speirs, Brendan J. Scott, and Sean D. Mason. "Soil phosphorus tests I: What soil phosphorus pools and processes do they measure?" Crop and Pasture Science 64, no. 5 (2013): 461. http://dx.doi.org/10.1071/cp13112.

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Abstract (sommario):

The phosphorus (P) status of 535 surface soils from all states of Australia was assessed using the following soil P tests: Colwell-P (0.5 m NaHCO3), Olsen-P (0.5 m NaHCO3), BSES-P (0.005 m H2SO4), and Mehlich 3-P (0.2 m CH3COOH + 0.25 m NH4NO3 + 0.015 m NH4F + 0.013 m HNO3 + 0.001 m EDTA). Results were correlated with soil P assays selected to estimate the following: soil solution P concentration (i.e. 0.01 m CaCl2 extractable P; Colwell-P/P buffer index); rate of P supply to the soil solution (i.e. P released to FeO-impregnated filter paper); sorbed P (i.e. Colwell-P); mineral P (i.e. fertili

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44

Rogeri, Douglas Antonio, Leandro Bortolon, Clesio Gianello, and Magno Batista Amorim. "Remaining phosphorus content to determine phosphorus availability of the soils in Rio Grande do Sul." Pesquisa Agropecuária Brasileira 52, no. 12 (2017): 1203–14. http://dx.doi.org/10.1590/s0100-204x2017001200009.

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Abstract (sommario):

Abstract: The objective of this work was to evaluate remaining P compared with soil clay content as a P buffer index to classify P extracted by the Mehlich-1 (M1) and Mehlich-3 (M3) methods in soils from the state of Rio Grande do Sul, Brazil. The experiment was carried out in a completely randomized design with five P2O5 rates (0, 50, 100, 200, and 400 mg kg-1) and two sucessive corn crops, and three replicates, in 20 representative soils of the state. P extracted by M1 and M3 before crop planting was adjusted to P contents in biomass, considering soil buffer capacity. The division of soils i

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45

Ageba, Mohamed, Nico Straalen, and Basma Assiuty. "Gene expression of the Springtail, Folsomia candida exposed to excess phosphorous in different soils." EGYPTIAN JOURNAL OF EXPERIMENTAL BIOLOGY (Zoology) 18, no. 1 (2022): 115. http://dx.doi.org/10.5455/egysebz.20220528075821.

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Abstract (sommario):

The gene expression measurements can be used as a biomarker for species functioning under stressed conditions in polluted soil. In this study, the response of genes to excessive phosphorous levels in the soil was assessed. The expression of Folsomia candida’s gene encoding the deduced MTC, Cyp6, and HSP70 was evaluated,using quantitative Rt-PCR. F. candida, was exposed to two different field soils at different distances from two fertilizer factories in Kafr El Zayat and Abou Zaabal in Egypt with different levels of phosphorous concentrations. In addition to exposure to phosphate-amended LUFA s

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46

Kashem, Md Abul, Olalekan Oluwole Akinremi, and Geza Joseph Racz. "Phosphorus fractions in soil amended with organic and inorganic phosphorus sources." Canadian Journal of Soil Science 84, no. 1 (2004): 83–90. http://dx.doi.org/10.4141/s03-018.

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Abstract (sommario):

Information on the P fractions in soils treated with different organic amendments is needed to better manage land application of organic amendments to agricultural soils. This study investigated the forms and distribution of P after 1, 4 and 16 wk in a Lakeland silty clay loam soil using a sequential fractionation procedure. Phosphorus was added at rates of 0, 123, 307 and 614 mg P kg-1 in the form of biosolids, hog manure, cattle manure and fertilizer P. The largest difference among the amendments was in the water-extractable P fraction, which was significantly lower in soil amended with bios

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47

Yang, Mei, and Huimin Yang. "Utilization of soil residual phosphorus and internal reuse of phosphorus by crops." PeerJ 9 (July 15, 2021): e11704. http://dx.doi.org/10.7717/peerj.11704.

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Abstract (sommario):

Phosphorus (P) participates in various assimilatory and metabolic processes in plants. Agricultural systems are facing P deficiency in many areas worldwide, while global P demand is increasing. Pioneering efforts have made us better understand the more complete use of residual P in soils and the link connecting plant P resorption to soil P deficiency, which will help to address the challenging issue of P deficiency. We summarized the state of soil “residual P” and the mechanisms of utilizing this P pool, the possible effects of planting and tillage patterns, various fertilization management pr

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48

Yli-Halla, Markku. "Sulphate sorption by Finnish mineral soils." Agricultural and Food Science 59, no. 1 (1987): 41–46. http://dx.doi.org/10.23986/afsci.72245.

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Abstract (sommario):

Sulphate sorption by 38 Finnish cultivated mineral soils was determined and its correlation with soil properties was studied. Sulphate sorption was correlated with soil pH (r =—0.46**) and with phosphate sorption (r =0.69***). With increasing soil pH, sulphate sorption decreased in relation to phosphate sorption. Phosphorus status was decisive in explaining the sulphate sorption of the soils. Even if both anions are sorbed by the same soil component (amorphous Al compounds), the sites are not available for sulphate if they are already occupied by phosphate. Sulphate sorption was negligible in

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49

Goundar, M. S., R. J. Morrison, and C. Togamana. "Phosphorus requirements of some selected soil types in the Fiji sugarcane belt." South Pacific Journal of Natural and Applied Sciences 32, no. 1 (2014): 1. http://dx.doi.org/10.1071/sp14001.

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Abstract (sommario):

The availability of phosphorus (P) in soil is perceived to be one of the limiting factors to sustainable sugarcane production in Fiji. The main objective of this research was to ascertain the amount of bioavailable phosphorus in some Fiji sugarcane growing area soils; this will be valuable in improving the determination of the required amount of inorganic fertilizer to be applied to the soil. In this study, twelve different soils were selected from the sugarcane belt of Fiji and phosphorus buffer index (PBI) and phosphorus isotherm experiments were performed. Soil physical and chemical paramet

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50

Hristov, Biser, Ivona Nikova, and Nataliya Andreeva. "Fertility of Soils over Loess in the Danubian Plain." Bulgarian Journal of Soil Science 2, no. 2 (2017): 123–32. https://doi.org/10.5281/zenodo.2586003.

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Abstract (sommario):

The loess in the Danubian plain is rich of nutrients and there is situated the south border of so called ―corn belt of Europe‖, where are the most fertile soils of Balkan Peninsula. There are five main typical soil types spread over loess - Chernozems, Phaeozems, Kastanozems, Regosols and Calcisols. There is also a big diversity in the content of basic nutrient elements – it varies between low and high content of organic carbon and mobile forms of nitrogen, phosphorous and potassium. As a whole there is shortage of phosphorus in all soil types. Soils over loess are characterized by a sur

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