The effect of mineral N fertiliser and sewage sludge on yield and nitrogen efficiency of silage maize

Abstract

A field experiment was conducted on a chernozem soil to estimate fertiliser N efficiency of silage maize (Zea mays L.) by the difference method as influenced by the type of N fertiliser (mineral-MF vs. sewage sludge-SS), and N rate. Eight N treatments were included (0, 60, 120, 180, and 240 kg N/ha prior to maize sowing, 60 kg N/ha at planting in MF; 120, and 240 kg N/ha in SS. The average dry mater (DM) yields were 11.2-14.8 t/ha. Average nitrogen uptakes were 88-185 kg N/ha, when the average N contents in DM were 0.8-1.25%. Nitrogen utilization efficiency (NUE) was a relatively stable value for treatments with MF. The best use of nitrogen from MF was reached by 60 and 120 kg/ha N doses. The average values of recovery efficiency of applied N (RE N ) were calculated as 41-57%. The use of SS increased the yield of silage maize by 19-25% compared to control, above all first and second year after their application. Mineral-fertilizer-N equivalents (MFE) for SS were calculated as 55 and 64%.

Systematic Review of Dairy Processing Sludge and Secondary STRUBIAS Products Used in Agriculture

“…This is due to a reduced NH 3 emission during composting, as is seen when acidifying stored pig and cattle slurry. In long-term studies adding human sewage sludge (i.e., biosolids) to silage maize, the FEV was 55% at low application rates and 64% at high application rates (Cerný et al, 2012). This result, compared with the finding by Brod et al (2012), implied that in short-term fertilizer application, doubling the application rate might not have a higher ANR and FEV, but in the long-term application, an increase of the rate increase ANR and FEV.…”

“…Other literature pertaining to the FEV of DPS, and especially DPS-derived STRUBIAS products is still limited. Many factors affect the calculation of FEV such as the treatment processes used to produce a DPS or DPS STUBIAS type (crop type, fertilizer application rate, duration of experiment and scale of experiment (pot vs. field) (Brod et al, 2012;Cerný et al, 2012).…”

Preferential percolation quantified by large water content sensors with artifactual macroporous envelopes

“…The field research was conducted in Prague – Suchdol (50°8’N, 14°23’E, 286 m a.s.l.). Average annual temperature and precipitation are 9.1 °C and 495 mm, respectively (Černý et al ., ). According to Němeček (2009, personal communication), the soil is Udic Haplustoll (Soil Survey Staff, ) or Haplic Chernozem (IUSS Working Group WRB, ) of loamy texture on an aeolic loessial substrate.…”

Optimisation of the co-combustion of meat–bone meal and sewage sludge in terms of the quality produced ashes used as substitute of phosphorites

“…The EU produces 4.5 Mt/year of MBM, used typically as biofuel (Hiromi Ariyaratne et al 2015 ; Gulyurtlu et al 2005 ) and mineral–organic fertilisers (Möller 2015 ; Lucid et al 2013 ). Studies (Nogalska and Zalewska 2013 ; Černý et al 2012 ) indicate that MBM is a valuable source of phosphorus for grain crops and, in particular, silage maize and increased maize productivity.…”