ChileanJAR

Deficiencies of nutritional elements in soil samples from the province of Chiloe were determined in 43 pot experiments with Lolium perenne X Lolium multiflorum. Deficiency in phosphorus and potassium predominated. Particularly, phosphorus deficiency was characteristic in every type of soil examined, with no exception the fertility diagram assigned maximum weight to potassium deficiency, although in didn't appear in all samples. Soils where there was low available phosphorus and potassium jointly with one or more severe scarcity ofmagnesium, sulphur, calcium and/or micronutrients were numerous.