Native Inorganic Phosphorus Forms and Their Relation to Some Chemical Indices of Phosphate Availability for Soils of Agra District, India

Tripathi, B.R.; Tandon, H. L. S.; Tyner, Edward H.

doi:10.1097/00010694-197002000-00004

Cited by 14 publications

(7 citation statements)

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“…Although total-P is not important in terms of available phosphorus for the plant, the amount of total-P gives an idea about the current phosphorus capacities in the soil. Tripathi et al (1970) classified the soils as low between 300-500 mg kg -1 , medium between 600-1000 mg kg -1 and higher than 1000 mg kg -1 according to their total-P content. These classification values show that the research soils contain low, medium and high total-P.…”

Section: Resultsmentioning

confidence: 99%

Relationship between some soil characteristics and contribution on available phosphorus of inorganic phosphorus fractions in calcareous soils

Çimrin

2020

Mustafa Kemal Üniversitesi Tarım Bilimleri Dergisi

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The aim of this study is to determine the amount and distribution of inorganic phosphorus fractions in soil profiles classified as Mollisol and Entisol, which are common in the Eastern Anatolian region, and to determine their soil properties and their relationships with each other, and to evaluate the contribution of inorganic phosphorus fractions to available soil phosphorus (Olsen-P). Methods and Results: The total amount of phosphorus in these soils with calcareous and slightly alkaline reactions has been determined as 280-1713 mg kg -1 and an average of 713 mg kg -1 . Ca-P', which make up an average of 80.9% of the total phosphorus and which are determined as the first phosphorus fraction in these soils, have been determined between 163.2-951.1 mg kg -1 . The occluded phosphates (CDB-P), which rank second in quantity in these soils after Ca-P2, are between 2.07-105.6 mg kg -1 , and thirdly, phosphates (CB-P) held by carbonates during the first extraction are 0.76-52.83 mg kg -1 . In the fourth and last row, nonoccluded aluminum and iron phosphates (Al-P + Fe-P) were found as the least amount of phosphorus fractions in these soils between 0.09-5.0 mg kg -1 . Conclusions: In summary, the order of inorganic phosphorus fractions in these soils was determined as Ca-P> CDB-P> CB-P> Al-P+Fe-P. Significance and Impact of the Study: It was determined that two fractions contribute to phosphorus (Olsen-P), nonoccluded aluminum and iron phosphates (AI-P + Fe-P) and occluded phosphates (CDB-P) in these soils.

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Section: Resultsmentioning

confidence: 99%

Relationship between some soil characteristics and contribution on available phosphorus of inorganic phosphorus fractions in calcareous soils

Çimrin

2020

Mustafa Kemal Üniversitesi Tarım Bilimleri Dergisi

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“…The total phosphorus contents of normal soils vary from 100 to 2000 mg kg -1 (Kabata-Pendias and Pendias, 1992). The studied soils can be classified according to Tripathi et al, (1970) as low in P (<600 mg kg -1 ). Because total P is an inherent property‫‬ of soils, the generally low total P values in studied‫‬ soils could be related to the nature of the parent‫‬ material.…”

Section: Resultsmentioning

confidence: 99%

Relationship between phosphorus fractions of some selected Sudanese soil orders to phosphate availability

Ahmed

Elsheikh

Mahi

2018

Eurasian Journal of Soil Science (Ejss)

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A laboratory experiment was conducted to determine the extent and the importance of phosphorus (P) fractions of some agriculturally important Sudanese soils on P availability. The soils were gathered from different locations in Sudan, to represent three different orders: Aridisols (Um Dum soil, North Kordofan state), Alfisols (Hagu soil, Senar state), and Vertisols (Hosh soil, Gezira state). The soil P was fractionated using an authenticated procedure. The results showed that the soils had low total, organic and available P contents. Most of the inorganic soil P was present in the Fe-Al fraction in Um Dum soil (> 50%), and about 40% of this fraction in Hagu soil, but, only 20% in alkaline Hosh soil. The CaP fraction constituted > 60% in Hosh soil, about 40% in Hagu soil and 20 % in Um Dum soil. The available P in the top soils studied was positively related to the percent sum of Al+Fe-P of the total P, and was negatively related to the percent CaP fraction content of the total P. It has been proposed that the P sorption starts by exchange with singly coordinate Fe or Al-OH clay (OH − edge group) and quickly reorganizes into more stable and less soluble ring forms especially at pH more than 7.0, Alkaline pH more than 8.0 in soil like Hosh, will in presence of Ca, favour with time, the formation of inactive less soluble form like octacalcium phosphates and apatites at expense of the initial Al and Fe-P forms which are less stable at alkaline pH.

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“…The higher the extractable P levels, the lower were the amounts of Ca-phosphates present in the soil. Tripathi et al (1970) found that the Al-phosphate fraction was the dominant fraction in the correlations between the soil P fractions and extractable P by both the Bray and Olsen methods. The Ca-phosphates were not correlated with either the Bray or the Olsen method.…”

Section: Imentioning

confidence: 91%

Plant-available and chemically-extractable P in selected Iowa soil profiles developed in deep loess

Birchett

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General distribution pattern of extractable P in loess profiles Variations in the chemically-extractable P distribu tion among soil profiles from different series 42 Southwest Iowa soil profiles 45 South-central and east-central Iowa soil profiles 45 Variation in the extractable P in profiles of the Monona and Marshall series 47 Monona series 47 Marshall series 48 Differences in depth distribution of extractable P in representative profiles, as determined by the Bray, Olsen, atid Resin methods 53 Relationship between soil pH and extractable P by the three chemical methods 61

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Native Inorganic Phosphorus Forms and Their Relation to Some Chemical Indices of Phosphate Availability for Soils of Agra District, India

Cited by 14 publications

References 0 publications

Relationship between some soil characteristics and contribution on available phosphorus of inorganic phosphorus fractions in calcareous soils

Relationship between some soil characteristics and contribution on available phosphorus of inorganic phosphorus fractions in calcareous soils

Relationship between phosphorus fractions of some selected Sudanese soil orders to phosphate availability

Plant-available and chemically-extractable P in selected Iowa soil profiles developed in deep loess

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