1944
DOI: 10.2134/agronj1944.00021962003600010006x
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Availability of Rock and other Phosphate Fertilizers as Influenced by Lime and Form of Nitrogen Fertilizer1

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Cited by 10 publications
(4 citation statements)
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“…The results from this preliminary experiment clearly show that the form of N fertilizer can have considerable influence on the plant uptake of P from phosphate rock and soil and supports earlier results obtained by Jones [8], Terman et al [21] and Volk [23]. In this study, by physically banding together nitrogen fertilizer and SPR it was possible to increase the uptake of P from SPR.…”
Section: The Mode Of Influence Of N Form On the Uptake Of P By The Plantsupporting
confidence: 90%
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“…The results from this preliminary experiment clearly show that the form of N fertilizer can have considerable influence on the plant uptake of P from phosphate rock and soil and supports earlier results obtained by Jones [8], Terman et al [21] and Volk [23]. In this study, by physically banding together nitrogen fertilizer and SPR it was possible to increase the uptake of P from SPR.…”
Section: The Mode Of Influence Of N Form On the Uptake Of P By The Plantsupporting
confidence: 90%
“…Companion applications of reactive phosphate rocks could exploit this acidity. To our knowledge few studies have examined this subject [2,8,21,23] and only Chien [2] has studied chemical changes that occur in the soil when nitrogen fertilizers and phosphate rocks are applied in combination to soil. This paper reports on two preliminary experiments which were designed to firstly study the effect of nitrogen fertilizer form on the amount of plant available P released from Sechura phosphate rock and secondly to study the nature of the chemical interactions responsible for urea and ammonium sulphate fertilizers causing increased dissolution of the phosphate rock.…”
Section: Introductionmentioning
confidence: 99%
“…Bureau and his coworkers (5) reported results of a field study conducted in Ohio in which soybeans were used as the test crop: Data on phosphorus uptake by the crop indicated that FTP was less effective than was CSP. Yolk (25), using oats and sorghum in a greenhouse tes.t, found FTP to be inferior to SP.…”
mentioning
confidence: 99%
“…Several studies have been reported on the effects of addition of various N sources and elemental S on PR dissolution. Greenhouse studies by Volk (1944) on the effect of urea or ammonium sulfate mixed with Tennessee PR on oat (Ouercus sp) and sorghum (Sorghum vulgaret yields showed that these compounds increased dry matter yields.…”
Section: Incorporation Of Additivesmentioning
confidence: 99%