01068nam a2200169 a 450000100080000000500110000800800410001910000190006024500310007926000590011030000160016952006260018565000240081165000230083565000230085870000170088118854122020-06-25       1999    bl uuuu      00u1 u    #d1 aFAGERIA, N. K.  aEfficient crop production.  aCampina Grande: Universidade Federal da Paraíbac1999  a541 p.cil.  aChapter 1: Crop production: past, present and future - a historical perspective. Chapter 2: Conservation tillage and crop production. Chapter 3: Sustainable agriculture. Chapter 4: Role of soil organic matter in crop production. Chapter 5: Management of plant nutrients for efficient crop production. Chapter 6: Management of acid soils for efficient crop production. Chapter 7: Management of salt-affected soils for efficient crop production. Chapter 8: Environmental impacts of deforestation of tropical rainforests. Chapter 9: Soil fertility and plant nutrition research: a review of past perceptions and future needs.  aFertilidade do solo  aNutrição vegetal  aProdução vegetal1 aGHEYI, H. R.