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<p>An Incubation study was conducted at Banda University of Agriculture &amp; Technology, Banda during 2024–25 to evaluate phosphate fixation and release pattern in soils of semiarid region of Uttar Pradesh, India under 5 prevailing land use systems viz., Forest, Sacred Grove, Agroforestry, Agriculture and Roadside plantation, of the locality. The laboratory experiment was laid out in a Completely Randomized Design (CRD) with three replications. Seven levels (0, 50, 100, 200, 300, 500 and 750&#xa0;ppm) of Phosphorus (P) through KH<sub>2</sub>PO<sub>4</sub> were applied to the 15 soil samples and analyzed the P fixing capacity. After that soils were incubated with different doses of calcium silicate and humic acid at room temperature (30&#xa0;°C) and then available soil P was estimated at 20, 40, 60 DAI. As a results, maximum P fixing capacity was observed in Forest land (74.71 and 85.21%) and lowest in roadside plantation (68.45 and 71.82%) in Naraini and Mahuwa block of Banda respectively. Irrespective of land use, average increased by 61.63% up to 40&#xa0;days of incubation and then started declining. Application of calcium silicate and humic acid resulted in significant increase (P &lt; 0.05) in the available P content of the soil throughout the incubation period. Study concluded and recommend the application of silicon as calcium silicate and humic acid for increasing availability of P in these traditionally high P fixing soils of semiarid region of Uttar Pradesh, India.</p>

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Silicon and humic acid influence on phosphorus dynamics in different land use systems under semi-arid region of Uttar Pradesh, India

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年5月7日

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  • Arjun Sharma,
  • Arbind Kumar Gupta,
  • Sharad Kumar Singh,
  • Deo Kumar,
  • Kaushal Singh,
  • Krishnanand Yadav

摘要

An Incubation study was conducted at Banda University of Agriculture & Technology, Banda during 2024–25 to evaluate phosphate fixation and release pattern in soils of semiarid region of Uttar Pradesh, India under 5 prevailing land use systems viz., Forest, Sacred Grove, Agroforestry, Agriculture and Roadside plantation, of the locality. The laboratory experiment was laid out in a Completely Randomized Design (CRD) with three replications. Seven levels (0, 50, 100, 200, 300, 500 and 750 ppm) of Phosphorus (P) through KH2PO4 were applied to the 15 soil samples and analyzed the P fixing capacity. After that soils were incubated with different doses of calcium silicate and humic acid at room temperature (30 °C) and then available soil P was estimated at 20, 40, 60 DAI. As a results, maximum P fixing capacity was observed in Forest land (74.71 and 85.21%) and lowest in roadside plantation (68.45 and 71.82%) in Naraini and Mahuwa block of Banda respectively. Irrespective of land use, average increased by 61.63% up to 40 days of incubation and then started declining. Application of calcium silicate and humic acid resulted in significant increase (P < 0.05) in the available P content of the soil throughout the incubation period. Study concluded and recommend the application of silicon as calcium silicate and humic acid for increasing availability of P in these traditionally high P fixing soils of semiarid region of Uttar Pradesh, India.