01669naa a2200181 a 450000100080000000500110000800800410001910000200006024501690008026000090024952010120025865000130127065000180128365300440130165300260134570000180137177300980138912800722025-07-25       1983    bl uuuu     u00u1 u    #d1 aANDERSON, G. W.  aPasture, sheep and timber production from agroforestry systems with subterraneum clover sown under 15 years old Pinus radiata by a method simulating aerial seeding.  c1983  aA fifteen-year-old plantation of P. radiata at Mundaring, Western Australia, was thinned to densities ranging from 0 to 200 trees/ha, and pruned to 6 m. Subterranean clover cv. Seaton Park was sown with fertilizer by a method simulating aerial seeding. Pasture, sheep and tree growth and changes in soil and foliar nutrient levels were measured over a four year period. Clover establishment was most satisfactory. In the second year the pastures under tree densities of 150 or more trees/ha carried 60% of the numbers of sheep carried on the pastures with no trees. Two years later, following increased canopy growth and shading, this relative carrying capacity was down to 40%. After four years, soil and foliar nutrient levels were not affected by tree density. At the lowest density of trees (&lt 100 stems/ha), individual tree diameter growth and volume production per hectare were stimulated and there was least loss of agricultural productivity. This density was therefore preferable for agroforestry.  aPastagem  aPinus Radiata  aIntegração lavoura-pecuária-floresta  aSistema agroflorestal1 aBATINI, F. E.  tAustralian Journal of Experimental Agriculture and Animal Husbandrygv. 23, p. 123-130, 1983.