00605nam a2200169 a 450000100080000000500110000800800410001910000190006024500620007926000360014130000100017752001780018765000160036565000160038165000130039765300250041019928082022-01-10       1988    bl uuuu     u0uu1 u    #d1 aMENEZES, E. A.  aThe Brazilian semi-arid tropic and agricultural research.  aPetrolina: EMBRAPA-CPATSAc1988  a20 p.  aLegume and cereal crop; Cotton; Cassava; Fruit crops; Horticulture; Agricultural mechanization; Soil and water management; Optional crops; Forges; Forest; Animal production.  aAgriculture  aAgricultura  aPesquisa  aSemi-árido tropical