Share This Article:

Effects of Humic Acid and Crop Residues on Soil and Wheat Nitrogen Contents

Abstract Full-Text HTML Download Download as PDF (Size:305KB) PP. 1277-1284
DOI: 10.4236/ajps.2014.59141    4,995 Downloads   7,033 Views   Citations


This study was conducted with the aim of finding humic acid and crop residues effects on soil and wheat nitrogen at New Development Farm, University of Agriculture, Peshawar, Pakistan during winter 2009-2010. The experiment was laid out in RCB design having four replications. Different levels (1, 1.5, 2 and 2.5 kg ha-1) of Humic acid were applied at sowing time. Mungbean (5 tons ha-1), wheat straw (10 tons ha-1) and mungbean (2.5 tons ha-1) + wheat straw (5 tons ha-1) were incorporated 30 days before sowing. Our results showed higher mineral and total nitrogen (7.32 and 0.43, respectively) mg kg-1 in soil and also higher nitrogen in stem, leaves and grains (2.3, 4.6 and 21.1, respectively) mg kg-1 at maturity in those plots in which 2.5 kg ha-1 of humic acid was applied. Higher mineral and total nitrogen (7.04 and 0.5, respectively) mg kg-1 in soil and also higher nitrogen in leaves (5.5) mg kg-1 at pre-anthesis, while at maturity stage in stem, leaves and grain (5.5, 2.1, 4.2 and 20.8) g kg-1 was recorded in those plots in which 5 tons ha-1 mung bean was incorporated. Our experimental results suggest the use of 5 tons ha-1 of mungbean residues with 2.5 kg ha-1 of humic acid to improve soil fertility availability of more nitrogen in wheat plants to increase the crop yield and grains quality.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

Akhtar, K. , Muhammad Shah, S. , Ali, A. , Zaheer, S. , Wahid, F. , Khan, A. , Shah, M. , Bibi, S. and Majid, A. (2014) Effects of Humic Acid and Crop Residues on Soil and Wheat Nitrogen Contents. American Journal of Plant Sciences, 5, 1277-1284. doi: 10.4236/ajps.2014.59141.


[1] MINFAL (2005) Agricultural statistics of Pakistan. Ministry of Food, Agriculture, Livestock, Economic Wing, Islamabad.
[2] Idris, M., Shah, S.M. and Mohammad, W. (2001) Integrated Use of Organic and Mineral Nitrogen, and Phosphorus on the Yield, Yield Components, N and P Uptake by Wheat. Pakistan Journal of Soil Science, 20, 77-80.
[3] Ahmad, N. (1999) Fertilizer Scenario in Pakistan Policies and Development. Agriculture and Fertilizer Use, National Fertilizer Development Centre (NFDC), Islamabad, 15-16.
[4] Tandon, H.L.S. (1998) Organic Fertilizer and Bio-Fertilizer-A Source Book. Fertilizer Development and Consultation Organization, New Delhi.
[5] Norse, D. (2003) Fertilizer and World Food Demand-Implication for Environmental Stresses. IFA-FAO Agriculture Conference “Global Food Security and the Role of Sustainable Fertilization”, International Fertilizer Industry Association (IFA), Rome.
[6] Hai, S.M. and Mir, S. (1998) The Lignitic Coal Derived HA and the Prospective Utilization in Pakistan Agriculture and Industry. Science Technology and Development, 17, 32-40.
[7] Sharif, M., Khattak, R.A. and Sarir, M.S. (2002) Wheat Yield and Nutrients Accumulation as Affected by Humic Acid and Chemical Fertilizers. Sarhad Journal of Agriculture, 18, 323-329.
[8] Khattak, R.A. and Muhammad, D. (2008) Increasing Crop Production through Humic Acid in Salt Affected Soils in Kohat Division (NWFP). Pak-Us Collaborative Research Endeavor, ALP Project, PARC, Islamabad.
[9] Bama, K.S., Selvakumari, G., Santhi, R. and Singaram, P. (2003) Effect of Humic Acid on Nutrient Release Pattern in an Alfisol (Typic haplustalf). Madras Agricultural Journal, 90, 665-670.
[10] Singh, Y. and Singh, B. (2001) Efficient Management of Primary Nutrients in the Rice-Wheat System. Journal of Crop Production, 4, 23-85.
[11] Bremner, J.M. and Mulvaney, C.S. (1982) Nitrogen-Total. In: Page, A.L., Ed., Methods of Soil Analysis. Part 2. Chemical and Microbiological Properties, American Society of Agronomy, Soil Science Society of America, 595-624.
[12] Steel, R.G.D. and Torrie, J.H. (1980) Principles and Procedures of Statistics, a Biometrical Approach. McGraw-Hill Kogakusha, Ltd., Tokyo.
[13] Nisar, A. and Mir, S. (1989) Lignitic Coal Utilization in the Form of HA as Fertilizer and Soil Conditioner. Science Technology and Development, 8, 23-26.
[14] Bhardwaj, K.K. and Gaur, A. (1970) The Effect of HA on the Growth and Efficiency of N Fixation of Azotobacter ohroococum. Folia, 15, 367.
[15] Brannon, C.A. and Sommers, L.E. (1985) Preparation and Characterization of Model Humic Polymers Containing Organic Phosphorus. Soil Biology and Biochemistry, 17, 213-219.
[16] Sarir, M.S., Sharif, M., Ahmed, Z. and Akhlaq, M. (2005) Influence of Different Levels of Humic Acid Application by Various Methods on the Yield and Yield Components of Maize. Sarhad Journal of Agriculture, 21, 75-81.
[17] Barron, P.F. and Wilson, M.A. (1981) Humic acid and coal structure study with Magic Angle Spinning 13 CCP-NMR. Nature, 9, 289-293.
[18] Jillani, G. and Ahmad, R. (1994) Substitution of Organic Manures with Humic Substances to Enhance Microbial Activity. National Congress on Soil Science NWFP, Agricultural University Peshawar, Pakistan.
[19] Singh, Y. (2003) Crop Residue Management in Rice-Wheat System. In: Addressing Resource Conservation Issues in Rice-Wheat Systems of South Asia. A Resource Book, Rice Wheat Consortium for Indo-Gangetic Plains-International Maize and Wheat Improvement Center, New Delhi, 153.
[20] Alexander, W. (1991) Liquid Crop Stimulant. US Patent No. 5034045 A.
[21] Prasad, R., Singh, S. and Sharma, S.N. (1998) Interrelationships of Fertilizer Use and Other Agricultural Inputs for Higher Crop Yields. Fertilizer News, 43, 35-40.

comments powered by Disqus

Copyright © 2018 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.