Investigating the release of phosphorus from rock phosphate pretreated with humic acid, farm yard manure and effective microbes
Paper Details
Investigating the release of phosphorus from rock phosphate pretreated with humic acid, farm yard manure and effective microbes
Abstract
Rock phosphate is a cheap source of soil P but it is not solublized in alkaline soils when applied directly. An incubation experiment was conducted in laboratory to assess the release of P from rock phosphate (RP) applied alone or in combination with humic acid (HA), farm yard manure (FYM) and effective microbes (EM) during 2016. Treatments included (T1) control, (T2); RP applied at 90 mg P2O5 ha-1 (T3); HA at 3 mg kg-1, (T4); FYM at 5 g kg-1, (T5); EM at 1 mL kg-1, (T6): RP+HA, (T7); RP+FYM, (T8); RP+EM, (T9); RP+HA+FYM, (T10); RP+HA+EM, (T11); RP+FYM+EM, (T12); RP+FYM+HA+EM and (T13) SSP fertilizer at 90 mg P2O5 ha-1. The treatments were added in one kg soil in pots following CRD with three replications. The pots were placed in incubators at 25% moisture and 30°C temperature respectively. AB-DTPA extractable P (PAB) and water soluble P (PWS) were determined in the soil at 0, 15, 30, 45, 60, 75 and 90 days of incubation whereas pH, EC, lime and organic matter were determined only at the end of study. It was noted that sole application of HA, FYM and EM yielded higher PAB, 4.22, 4.76, 4.03 mg kg-1 respectively while Pws from these treatments was 0.95, 0.88, 0.95 mg kg-1 respectively. RP+HA+FYM+EM gave the highest value of AB-DTPA extractable P (4.96 mg kg-1) and water soluble (1.69 mg L-1) at the end of incubation time. This treatment also suggested the optimum combination for higher release of P from rock phosphate and keeping it in available form in soil.
Barbers SA. 1995. Soil Nutrient Bioavailability: a mechanistic approach. John Wiley and Sons, Fertilizers Development and Consultation. New York Bio-fertilizers 36–51 p.
Basak RK, Deg GK. 1997. Release of phosphorus from partially acidulated rock phosphate in a Typic Ustifluvent. Journal of Indian Society of Soil Science 4, 759-762.
Chalk PM, Zapata F, Keerthisinghe G. 2002. Towards integrated soil, water and nutrient management in cropping systems: the role of nuclear techniques. In IUSS, (ed.). Soil Sci: confronting new realities in the 21st century. Transactions. 17th World Congress of Soil Science, Bangkok 2164-2164 p.
FAO. 1995. Integrated plant nutrient systems In R. Dudal and R. N. Roy (E.d) Fertilizer and Plant Nutrition Bulletin No. 12. Rome.
Laskar BK, Debnath NK, Basak RK. 1990. Phosphorus availability and transformation from Massoorie rock phosphate in acid soils. Environment and Ecology 8, 612-616.
Majumdar B, Venkatesh MS, Kumar K., Patiram SK. 2007 Effect of rock phosphate, superphosphate and their mixtures with FYM on soybean and soil-P pools in a typic hapludalf of Meghalaya. Journal of the Indian Society of Soil Science 55(2), 167-174.
Marshner H. 1993. Mineral Nutrition of higher plant London, Academic press Ltd, (Harcourt Brace and Co publisher). Zimbabwe Journal of Agricultural Research 25, 45-50.
NFDCb. 1989. The estimate of fertilizer demand and import requirements. Publication Series 3/89, Islamabad record no. 5831.
Tomayo VA, Munoz AR, Diaz AC. 1997. Organic fertilizer application to maiz (zea mays L.) on alluvial soil in a moderate climate. Actualidades-Corpoica. No. 108, 19-24.
Muhammad Shakir Farooq, Arshad Nawaz, Tanveer Iqbal, Imran Hassan, Muhammad Umair, Muhammad Arif, Ehsanullah, Mohammad Naseem, Noman shakoor, 2018. Investigating the release of phosphorus from rock phosphate pretreated with humic acid, farm yard manure and effective microbes. Int. J. Biosci., 13(6), 36-42.
Copyright © 2018 by the Authors. This article is an open access article and distributed under the terms and conditions of the Creative Commons Attribution 4.0 (CC BY 4.0) license.