Manure organic manures

Schuphan W (1972) Effects of application of inorganic and organic manures on market quality and on biological value of agricultural products . Qualitas Plantarum et Materiae Vegetabiles, 21, 381-398. 

Okur N, Gocmez S, Tuzel Y (2006) Effect of organic manure application and solarization on soil microbial biomass and enzyme activities under greenhouse conditions. Biol Agric Hort 23 305-320... 

Feedstock Unit Municipal organic waste Wet manure Dry manure... 

Table 3.12 Carbon balances for rice-rice and maize-rice cropping systems over five consecutive crops in 3 years at IRRI, Laguna, Philippines. Except for short stubble all straw was removed from the fields and no organic manures were applied. Values are t C...

Results from relevant long-term trials seem somewhat contradictory in connection with nitrate leaching potential. This is due to the fact that most trials are conducted with Nt-equality of the compared systems or even equal organic manure application rates. While no differences between organic and conventional systems were observed in the Swiss DOC trial (Alfoldi et al. 

N2O contributes to the greenhouse effect with 4% (Schonwiese 1995). N2O emissions from agriculture come from mineral and organic N-fertilisers and from leguminous crops. The emission levels depend on the kind of fertiliser and on the application technique. The N2O emission factors for the most frequently applied forms of mineral N-fertilisers are < 0.5%, for organic manure 1.0 - 1.8% and for N from legumes, about 1% of the fixation rate. 

Soil surface balance measures the differences between the input or application of nutrients entering the soil (e.g. mineral fertilisers or organic manure) and the output or withdrawal of nutrients from harvested and fodder crops. Farm gate balances measure the nutrient input on the basis of the nutrient contents of purchased material (e.g. concentrates, fertilisers, fodder, livestock, biological N-fixation) and farm sales such as meat, milk, fodder, cereals (OECD 1997). 

Analytical Methods Used by ADAS for the Analysis of Organic Manures ... 

Report results on a fresh weight basis, since that is how farmers apply organic manures to land. Mass/mass for solid manures, mass/volume for slurries, with the cut-off point at approx. 10% DM content. 

Calculation of Fertilizer Values of Organic Manure from Laboratory Analysis Data... 

Typical report on fertilizer value of organic manure... 

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