na INLIS000000000002690 0010-0121001056 The Zschortau plan for the implementation of soil, water, and Nutrient Management Research : Proceedings a DSL Proceedings a DSL International Board For Soil Research And Management Workshop on Soil, Water and Nutriet Management Research Bangkok IBSRAM 1995 255 p. ill ; 30 cm 631.4 631.4 TANAH AIR NUTRISI MANAGEMENT-TANAH. 3816 3816