Relationship of Phosphorus Fractions with Soil Properties in Mothbean Growing Acid Soils of North Western Indian Himalayas

Shah, Tajamul Islam; Rai, Apurva; M.a, Aziz

doi:10.1080/00103624.2019.1604730

Cited by 15 publications

(9 citation statements)

References 14 publications

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“…e P pool in their increasing proportion in soil was Org-P > Res-P > Fe-P > Al-P > Ca-P > P-sol. is result is similar to the report in [14].…”

Section: Phosphorus Fractions As Influenced By Liming Ratessupporting

confidence: 92%

“…Even if the total soil P exceeds plant requirements, it is mostly in nonavailable forms for crop uptake [12] and locked in primary minerals, precipitated, adsorbed, or inorganically complexed forms, and only approximately 6% (range of 1.5%-11%) readily available to plants [13]. Inorganic P mostly consists of poorly soluble Ca phosphates and Fe and Al phosphates, respectively, in alkaline soils and acid soils [14]. Soil P chemistry is complex and P possibly transformed depending on the environment [15]; therefore accurate assessment of P availability in soils and precise prediction of P fertilizer requirements are increasingly important for sustainable agriculture [16].…”

Section: Introductionmentioning

confidence: 99%

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Changes in Soil Phosphorus Pools and Chemical Properties under Liming in Nitisols of Farawocha, South Ethiopia

Chulo

Laekemariam

Kiflu

2021

Applied and Environmental Soil Science

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Understanding the nutrient dynamics in acid soil is fundamental to carry out proper management. The study was conducted to investigate phosphorus (P) pools and selected properties under different rates of lime for acid nitisols of Farawocha, Southern Ethiopia. Four lime rates incubated for a month in three replications were tested. The lime rates were 0 t/ha (0%), 5.25 t/ha (50%), 10.5 t/ha (100%), and 15.75 t/ha (150%). Lime requirement (LR) for 100% was calculated targeting soil pH of 6.5. Data on the P pools such as soluble P (P-sol) and bounded forms of P with iron (Fe-P), aluminum (Al-P), calcium (Ca-P), organic part (Org-P), residual P (Res-P), and total of P fractions were measured. In addition, changes in soil chemical properties such as pH, exchangeable acidity, calcium (Ca), magnesium (Mg), sulfur (S), iron (Fe), copper (Cu), boron (B), zinc (Zn), and manganese (Mn) were analyzed. The result showed that total P was 357.5 mg/kg. Compared to nontreated soil, liming at a rate of 15.75 t/ha significantly improved P-sol (34.2%, r2 = 0.88), Ca-P (61.6%, r2 = 0.92), and Res-P (195%, r2 = 0.94); however, it reduced Fe-P (58.5%, r2 = −0.83), Al-P (71%, r2 = −0.97), and Org-P (19.1%, r2 = 0.93). Overall, the P-associated fractions in the soil, regardless of the lime rates, were in the order of Org_P > Res_P > Fe_P > Ca_P > Al_P > P-sol. Liming raised soil pH by 2.1 units (4.5 to 6.6) over nonlimed soil, whereas it reduced exchangeable acidity from 4.18 to 0.23 meq/100 g soil. Available P, Ca, Mg, S, Cu, Zn, and B contents were significantly improved with lime application. However, liming reduced Fe and Mn contents. In conclusion, these findings showed that liming facilitated the release of P from various pools, modified pH and exchangeable acidity, and resulted in beneficial changes for most of the soil chemical properties.

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“…e P pool in their increasing proportion in soil was Org-P > Res-P > Fe-P > Al-P > Ca-P > P-sol. is result is similar to the report in [14].…”

Section: Phosphorus Fractions As Influenced By Liming Ratessupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Changes in Soil Phosphorus Pools and Chemical Properties under Liming in Nitisols of Farawocha, South Ethiopia

Chulo

Laekemariam

Kiflu

2021

Applied and Environmental Soil Science

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“…Shariatmadari, Shirvani, and Dehghan (1977), studied the availability of organic and inorganic P fractions in calcareous soils and reported that the TOC content was the soil property that more affected the size of the P fractions. Shah, Rai, and Azis (2019) found that P availability was positively correlated with TOC in acidic soils from northwestern India. The P availability from the soils in our study was more correlated with the levels of clay, P-rem and the different forms of Fe (Fe-DCB and Fe-AO) (Table 5).…”

Section: Relationships Between Indicators Of Soil Phosphate Buffer Ca...mentioning

confidence: 93%

Phosphorus fractions in soils with distinct mineralogy and their relationship with phosphate buffer capacity indicators in Brazil

et al. 2022

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Phosphorus (P) is one of the most important elements used in fertilizing soils in tropical regions due to the low efficiency of phosphate fertilization. This work aimed to fractionate inorganic P (Pi) in tropical soils of different mineralogical compositions and to relate these fractions with their respective phosphate buffer capacity (PBC) indicators. The soils were characterized physically, chemically and mineralogically. Additionally, we evaluated the P concentration that remained in solution of soil after equilibrium was met; this was termed P remaining (P-rem). In general, the Pi fractions of soils did not correlate with the PBC indicators. The P-H2O fraction showed a negative correlation with the P-Al fraction. Ferric minerals did not influence P fixation. P-rem showed a strong correlation with the maximum P adsorption capacity, adsorption energy, and the amorphous and crystalline forms of Fe. The minerals of aluminum contributed the most to P fixation. P-rem was the best estimator of PBC. The soils with high, moderate and low rates of P fixation showed high amounts of the fractions P-Al, P-Ca, and P-Fe, respectively. The results showed that P fixation was influenced by the fractions of P in the soil, suggesting that the efficiency of phosphate fertilizers in tropical soils depends on the mineralogy of the clay fraction within those soils.

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“…However, the same variety recorded yield of 500 kg/ha under farmers' practice during 2017. Higher grain yield under improved technology ascribed to better nutrient management (Kumar and Uppar, 2010; Shah et al, 2019) [7,17] proper crop geometry leading to optimum plant population (Sadashivanagowda et al, 2017) [16] , sowing time, seed rate (Yadav et al, 2009) [26] and improved agrotechnology, demonstrations and other management practices (Sharma et al, 2015;Veni et al, 2018) [19,24] .…”

Section: Grain Yieldmentioning

confidence: 99%

“…Moreover, the average technology gap observed was 107 kg/ha. The differences in technology gap over the years ascribed to better performance of recommended varieties with different interventions and more feasibility of recommended technologies (Verma and Dayanand, 2013;Meena and Singh, 2016;Kumawat et al, 2017;Pagaria et al, 2019) [25,11,17,14] . Similarly, the technology index for all demonstrations in the study were in accordance with technology gap.…”

Section: Gap Analysismentioning

confidence: 99%

Gap analysis and economics of front line demonstrations in moth bean [Vigna aconitifolia (Jacq.) Marechal] under rainfed conditions of Rajasthan

Shivran¹,

Singh²,

Kherawat³

et al. 2020

Int. J. Chem. Stud.

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Performance analysis in terms of gap analysis, yield enhancement and economic viability of improved production technologies of moth bean vis-à-vis farmers' practice was evaluated through front line demonstrations at farmers' field during kharif seasons of 2015, 2016 and 2018. The front line demonstrations were conducted by Krishi Vigyan Kendra, Bikaner-II, Rajasthan. Recommended technologies for the agro-climatic zone (Hyper Arid Partial Irrigated Plain Zone, numerated as IC) developed by the university were adopted in letter and spirit for cultivating moth bean. Improved varieties of moth bean recommended for the region viz., RMO 257, CAZRI Moth 2 and RMO 257 were grown under demonstrations. Selection of farmers' were done following due technique of Participatory Rural Appraisal (PRA). The experimental results reveal that grain yield under demonstrations ranged from 520 to 610 kg/ha with a mean of 567 kg/ha. In per cent terms, scaling in productivity following improved technology ranged from 18.96 to 30.00% with an average value of 23.26% (over the Farmers' practice). Moreover, average yield gaps for extension, technology and technology index were 50, 107 kg/ha and 8.11 per cent, respectively. Demonstration of improved technologies also fetched average gross (₹35,838/ha), net return (₹24,622/ha) and additional return (₹5,605/ha) in comparison to Farmers' practice. Demonstration of improved technology also resulted in realizing higher incremental cost benefit ratio (4.8) and benefit: cost ratio (2.20) compared to the Farmers' practice (1.89) during three years study period. This enhancement in grain yield and economics of moth bean under demonstrations clearly showed the impact of adoption of improved technology over farmers' practice in Hyper Arid Partial Irrigated Plain Zone of Rajasthan.

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Relationship of Phosphorus Fractions with Soil Properties in Mothbean Growing Acid Soils of North Western Indian Himalayas

Cited by 15 publications

References 14 publications

Changes in Soil Phosphorus Pools and Chemical Properties under Liming in Nitisols of Farawocha, South Ethiopia

Changes in Soil Phosphorus Pools and Chemical Properties under Liming in Nitisols of Farawocha, South Ethiopia

Phosphorus fractions in soils with distinct mineralogy and their relationship with phosphate buffer capacity indicators in Brazil

Gap analysis and economics of front line demonstrations in moth bean [Vigna aconitifolia (Jacq.) Marechal] under rainfed conditions of Rajasthan

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