Effectiveness of phosphate fertilizers of diffrent water solubilities in relation to soil phophorus adsorption

Prochnow, Luís Ignácio; Quispe, Jack Fernando Santos; Francisco, Eros Artur Bohac; Braga, Graziela

doi:10.1590/s0103-90162006000400004

Cited by 31 publications

(23 citation statements)

References 7 publications

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“…This would also suggest a transfer of P from plant available pool extracted by Bray-1 to less available P pools. This agrees with the findings of Prochnow et al (2006) have demonstrated that the application of soluble P to soils high in P fixing capacity decreased the available P (Bray P 1 ) for plant uptake.…”

Section: Discussionsupporting

confidence: 93%

Long-term effects of TSP and Minjingu phosphate rock applications on yield response of maize and soybean in a humid tropical maize–legume cropping system

Savini

Kihara

Koala

et al. 2016

Nutr Cycl Agroecosyst

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Crop production in sub-Sahara Africa is constrained by low soil phosphorus (P) content. A study was conducted in western Kenya to explore alternative P inputs and ways of optimizing their effectiveness and profitability. A field experiment established in 2007 studied the effects of Minjingu phosphate rock (MPR) and triple superphosphate (TSP) on maize, common beans and soybean yield. MPR and TSP were applied seasonally at a rate of 0, 12.5, 25 and 50 kg P ha -1 either alone or in combination. Application of P, irrespective of amount, resulted in significantly higher grain yield and total biomass for maize, common beans and soybean compared with the 0 P treatment. Applying P at 12.5 kg ha -1 resulted in significantly (q B 0.05) lower maize, common beans and soybean grain yields than all the other P rates. On the other hand, application of P at 25 kg ha -1 resulted in similar yields to the higher P application rates. Relative agronomic effectiveness of MPR was similar for both maize and soybeans in most seasons, confirming that MPR has high potential for direct application in these soils. Switching from no application to P applied at 12.5 and also 25 kg P ha -1 attracts a marginal rate of return of at least 200 %.Switching from 25 kg P ha -1 to any of the other options attracted MRR \ 200 %. This implies that adoption of either MPR or TSP by farmers in western Kenya is profitable for maize and soybeans production, given that MRRs were above 100 % minimum acceptable rate of return which is a requirement for farmers to change from one technology to another.

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Section: Discussionsupporting

confidence: 93%

Long-term effects of TSP and Minjingu phosphate rock applications on yield response of maize and soybean in a humid tropical maize–legume cropping system

Savini

Kihara

Koala

et al. 2016

Nutr Cycl Agroecosyst

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“…Alternatives to increase yield and the absorption of phosphate fertilizers (location, granulation and the use of sources of lower solubility) have greater effects on soil conditions with a higher phosphorus capacity factor and low availability of phosphorus (Horowitz and Meurer, 2003;Büll et al, 2004;Prochnow et al, 2006). In a study on the performance of soybean seeds coated with phosphorus at different doses of phosphorus, it was found that coating soybean seeds with phosphorus increased yield by 14% with the use of 21 g.kg -1 of seeds coated with phytic acid (Peske et al, 2009).…”

Section: Resultsmentioning

confidence: 99%

Nodulation, Growth and Soybean Yield in Response to Seed Coating and Split Application of Phosphorus

et al. 2016

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-Phosphorus is one of the most important nutrients for soybeans, but it presents a complex dynamic in the soil and can become unavailable. The split and localized application of this nutrient can be an effective approach to increase its availability. The aim of this study was to evaluate the effect of a split phosphorus dose applied to the soil and the seed coating with monobasic sodium phosphate on nodulation, growth and yield components of soybean cultivar BRS Valiosa RR. The experiment was conducted in a greenhouse in a completely randomized design in a 2x5x3 factorial arrangement, i.e., coating or not the seeds; five doses of phosphorus applied to the soil; and three times of splitting phosphate fertilizer. Phosphorus content in the index leaf (IL), dry matter of shoots, roots and nodules, yield components, and plant height were evaluated. There was an increase in nodulation and growth of plants with increased levels of phosphorus applied to the soil. In smaller doses, the seed coating and the splitting of phosphorus fertilizer increased nodulation, growth and yield components of plants. Thus, the splitting of the phosphorus dose, combined with seed coating, is indicated for increasing the yield components of soybean plants.Index terms: Glycine max, phosphorus availability, seed treatment. Nodulação, Crescimento e Rendimento de Plantas de Soja em Resposta aoRecobrimento das Sementes e Parcelamento da Adubação Fosfatada RESUMO -O fósforo é um dos nutrientes mais importantes para a soja, porém apresenta uma dinâmica complexa no solo e pode tornar-se indisponível. A aplicação parcelada e localizada desse nutriente pode ser tática eficiente para aumentar sua disponibilidade. Assim, objetivou-se avaliar o efeito do parcelamento da dose de P aplicada ao solo e do recobrimento das sementes com fosfato de sódio monobásico na nodulação, no crescimento e nos componentes de rendimento de plantas de soja cultivar BRS Valiosa RR. O experimento foi conduzido em casa de vegetação em delineamento inteiramente casualizado, em esquema fatorial 2x5x3, ou seja, recobrimento ou não das sementes; cinco doses de P aplicados ao solo; e três épocas de parcelamento da adubação fosfatada. As seguintes variáveis resposta foram avaliadas: teor de P na folha índice, matéria seca da parte aérea, da raiz e dos nódulos, componentes de rendimento e altura de plantas. Houve incremento na nodulação e no crescimento das plantas com o aumento das doses de fósforo aplicado no solo. Nas menores doses, o recobrimento das sementes e o parcelamento da adubação fosfatada aumentaram a nodulação, o crescimento e os componentes do rendimento das plantas. Assim, o parcelamento da dose de P, aliado ao recobrimento das sementes, é indicado para aumentar os componentes de produtividade das plantas de soja.Termos para indexação: Glycine max, disponibilidade de fósforo, tratamento de sementes.

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“…In 1986 Stevenson and Holford reported that the recovery rate of P fertilizer by plants is only about 10-30% [5]. The remaining 70-90% is accumulated in soil or in the form of immobile that is bound by Al or Fe in acid soils, or Ca and Mg in alkaline soils [6,7]. Phosphorus is highly insoluble and unavailable to plants.…”

Section: Introductionmentioning

confidence: 99%

Phosphate Solubilizing Fungi Isolated and Characterized from Teff Rhizosphere Soil Collected from North Showa and Gojam, Ethiopia

Gizaw¹,

Tsegay²,

Tefera³

et al. 2017

J Fertil Pestic

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been conducted by many researchers from soils, mangrove and rhizosphere [1,[12][13][14][15][16][17] AbstractPhosphorus (P) is one of the major bio elements limiting agricultural production. Phosphate solubilizing fungi play a noteworthy role in increasing the bioavailability of soil phosphates for plants. The present study was aimed at isolating and characterizing phosphate solubilizing fungi from teff rhizosphere soil. Fungi were identified using lactophenol cotton blue staining confirmation and Biolog micro station. Fungi isolates were screened and transferred to Biolog universal yeast agar media. Pure yeast cells and filamentous fungi were suspended in sterile water and filamentous fungi (FF) inoculum fluid at 49 ± 2 and 75 ± 2 turbidity measured by Biolog turbidimeter respectively. 100 μ-L transferred from each suspension into 96 wells of the biolog yeast micro Plate and filamentous fungi microplate tagged with different carbon source and incubated at 26°C for 24 to 72 h and read by the micro station reader at a single wavelength of 590 nm, results were recorded and processed for identification by micro log3 software ver. 4.20.05. Biolog micro station produce 24 fungi read results. Filamentous fungi ≤ 0.5 similarity index (62.5%), yeast ≥ 0.5 similarity index (25%), yeast ≤ 0.5 similarity index (12.5%). The identified fungi were evaluated for phosphate solubilization by the pikovskaya's agar (PVK) selective media. Seven species were positive in phosphate solubilizing ability.

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Effectiveness of phosphate fertilizers of diffrent water solubilities in relation to soil phophorus adsorption

Cited by 31 publications

References 7 publications

Long-term effects of TSP and Minjingu phosphate rock applications on yield response of maize and soybean in a humid tropical maize–legume cropping system

Long-term effects of TSP and Minjingu phosphate rock applications on yield response of maize and soybean in a humid tropical maize–legume cropping system

Nodulation, Growth and Soybean Yield in Response to Seed Coating and Split Application of Phosphorus

Phosphate Solubilizing Fungi Isolated and Characterized from Teff Rhizosphere Soil Collected from North Showa and Gojam, Ethiopia

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