5 research outputs found
Effects of different manure types (slurry and solid cattle manure, SCM) and manure management practices on indicators of productive, environmental and economic farm performances.
*<p>Delayed mowing, use of zeolite manure additive, storage under an impermeable cover (sealed), and irrigation after application.</p
Dynamics of soil organic carbon (a, f, k) and nitrogen (b, g, l), inorganic nitrogen (c, h, m), N volatilization (d, i, n) and N soil losses (e, j, o) as affected by individual or combined management practices.
<p>Management scenarios were varied across columns: manure types (a-e), storage methods (f-j), and manure additives (k-o). Legends apply per column, with manure types (S = slurry, M = solid cattle manure), manure additives (T = farm topsoil, Z = zeolite, L = lava meal), storage methods (C = composting, R = roofed storage, U = impermeable sheet), I = irrigation, D = delayed mowing.</p
Relation between available inorganic N (<i>n</i>), uptake by the grassland (U) and biomass production (Y) for total (solid line) and harvested (dashed line) biomass.
<p>The dotted line indicates the annual withdrawal of inorganic N, N soil losses are calculated as the difference between this line and N uptake in total biomass in a.</p
Conversions and losses of organic and inorganic nitrogen (<i>s</i> and <i>n</i>) in excreted cattle manure as affected by events and processes in the consecutive stages of the manure handling chain on a farm.
<p>The arrows indicate flows of nitrogen between the pools.</p