Responses of Soil Microbial Biomass and Enzyme Activities to Tillage and Fertilization Systems in Soybean (Glycine max L.) Production

• DOI: 10.3389/fpls.2016.01730
• Publication Date: 2016-11-21T10:19:35Z
• Authors: Gholamreza Heidari; Khosro Mohammadi; Yousef Sohrabi
• Keywords: Soil enzyme

Tillage operation and fertilizer type play important roles in soil properties as far microbial condition is concerned. Information regarding the simultaneous evaluation of effect long-term tillage fertilization on traits soybean farms not available. Accordingly, it was hypothesized that, biomass enzyme activity, more often than not, respond quickly to changes fertilization. Therefore, experiments were aimed at analyzing responses a field Kurdistan University, Iran. The categorized into coarse Loamy, mixed, superactive, calcareous, mesic Typic Xerorthents. arranged split plot, based randomized complete block design with three replications. Main plots consisted (since 2002) systems including conventional (CT), minimum (MT), no-tillage (NT). Eight methods employed sub-plots, (F1): farmyard manure (FYM); (F2): compost; (F3): chemical fertilizers; (F4): FYM + (F5): (F6): compost (F7): fertilizers (F8): Control (without fertilizer). highest carbon (385.1 μg) observed NT-F4 treatment. NT treatment comparatively recorded higher values acid phosphatase (189.1 μg PNP g-1 h-1), alkaline (2879.6 h-1) dehydrogenase activity (68.1 h-1). treated mixture inputs had maximum urease all treatments. Organically manured (F4) showed (85.7 (199.1 (3183.6 compared those fertilizers. In treatment, using on-farm most suitable for sustainable management improvement biological activities cultivation. We concluded that applying organic manures employing reduced increased activities.