Organic farming fertilizers

H. Ferris, R. C. Venette, and S. S. Lau, Dynamics of nematode communities in tomatoes grown in conventional and organic farming. sy.stems, and their impact on soil fertility. Appl. Soil Ecol. 3 161 (1996). 

Winter barley is an ideal entry for oilseed rape because the earlier harvest allows early drilling of rape. It has been shown on organic farms that building up fertility by using a green manure crop, such as red clover, has paid off financially, with the subsequent boost in yield of the following cereal crop. 

Mader P, Fliessbach A, Dubois D, Gunst L, Fried P and Niggli U (2002). Soil fertility and biodiversity in organic farming . Science, 296,1694—1697. 

Livestock husbandry is not explicitly addressed in the historical concepts of organic farming. Livestock provided manure and was therefore an important link in the crop and soil fertility chain. Livestock played a major role on its own only in biodynamic farming, especially cattle whose organs are described as important catalysts of processes and transmitters of cosmic energies (Steiner, 1929). Nonetheless, even the pioneers of biodynamic farming did not consider livestock husbandry from an ethical or animal welfare point of view. 

Stockdale, E.A., Shepherd, M.A., Fortune, S. and Cuttle, S.P. (2002). Soil fertility in organic farming systems - fundamentally different Soil Use and Management, 18, 301-308. 

Keywords Cultivation Fertilization Indicators Integrated pest management Irrigation Land conservation Organic farming Pest control Sustainable agriculture... 

Scofield A (1986) Organic farming - the origin of the name. Biol Agric Hort 4 1-5 Shapiro BI, Sanders JH (1997) Fertilizer use in semiarid West Africa profitability and supporting policy. Agric Sys 56 467-482... 

Stevenson PC, Anderson JC, Blaney WM, Simmonds MSJ (1993) Developmental inhibition of Spodoptera litura (Fab.) larvae by a novel caffeoylquinic acid from the wild groundnut, Arachis paraguariensis. J Chem Ecol 19 2917-2933 Stockdale EA, Shepherd MA, Fortune S, Cuttle SP (2002) Soil fertility in organic farming systems - fundamentally different Soil Use Manage 18 301-308 Sturz AV, Christie BR, Matheson BG (1998) Associations of bacterial endophyte populations from red clover and potato crops with potential for beneficial allelopathy. Can J Microbiol 44 162-167... 

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