Soil fertility, managing rotations

The document sections referring to soil fertility management ( 205.203) and crop rotation practices ( 205.205) run along the same lines as those in the EU s standards. Neither section displays a particular awareness of salinity. 

Yield is not the only indicator of farm productivity. Inputs used to deliver those yields should also be considered, and can be in the form of materials, as discussed below, but they may also be in different forms. For example, one way to manage soil fertility and pest problems on organic farms is to employ a different rotation from that on conventional farms where synthetic fertilisers and pesticides can perform those tasks. Because of the difference in rotation, which may also mean a larger diversity of crops, the whole farm needs to be considered when determining productivity and profitability. 

Chan KY, Heenan DP (1999) Microbial-induced soil aggregate stability under different crop rotations. Biol Fertil Soils 30 29-32 Chantigny MH (2003) Dissolved and water-extractable organic matter in soils a review on the influence of land use and management practices. Geoderma 113 357-380... 

Munkholm, L.J., Schjonning, P. and Petersen, C.T. 2001a. Soil mechanical behaviour of sandy loams in a temperate climate case studies on long-term effects of fertilization and crop rotation. Soil Use and Management 17 269-277. 

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