| http://www.w3.org/ns/prov#value | - This graph tells us a couple of things. * First, don?? t count on wood-based composts (blue line) as a source of N. In fact, adding such composts to soils may even cause N deficiency in fast growing crops such as tomato or lettuce as shown below. (Hue and Sobieszczyk, unpublished data)
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