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Type: Journal article
Title: Microbial biomass, nutrient availability and nutrient uptake by wheat in two soils with organic amendments
Author: Malik, M.
Khan, K.
Marschner, P.
Ul-Hassan, F.
Citation: Journal of Soil Science and Plant Nutrition, 2013; 13(4):955-966
Publisher: Instituto de Agroindustria, Universidad de La Frontera
Issue Date: 2013
ISSN: 0718-9508
Statement of
M.A. Malik, K.S. Khan, P. Marschner, Fayyaz-ul-Hassan
Abstract: A 72-day greenhouse pot experiment was conducted with a sandy loam or a silt loam soil to examine the effects of farmyard manure (FYM), poultry litter (PL) and biogenic waste compost (BWC) at 10 g dw kg-1 soil on microbial biomass and activity and growth and nutrient uptake by wheat. Soil samples were collected at days 0, 14, 28, 42, 56 and 72 after planting. Growth and nutrient uptake by wheat were determined on day 72. All three amendments increased microbial biomass C, N and P, dehydrogenase activity, plant growth and nutrient uptake with a greater effect by FYM and PL than by BWC. All amendments increased microbial biomass C, N and P and enzyme activity particularly on day 0. These microbial parameters decreased after day 0 indicating microbial biomass turnover. All amendments increased plant growth and nutrient uptake. It is concluded that organicamendments can stimulate microbial growth and nutrient uptake as well as plant growth and nutrient uptake. Microbes can increase plant nutrient availability by nutrient mobilisation but also because nutrients taken up by the microbial biomass initially could become available to plants when the microbial biomass turns over as the easily available C is depleted.
Keywords: Compost
enzyme activity
farmyard manure
microbial biomass
poultry litter
nutrient uptake.
Rights: Creative Commons License. All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License
DOI: 10.4067/S0718-95162013005000075
Appears in Collections:Agriculture, Food and Wine publications
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