Policy Guidelines on Soil and Water Conservation for Rainfed Mechanized Agriculture in the Central Plains of Guarico State, VenezuelaCornell University, 1996 - 252 pages |
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agencies agricultural lands Alfisol bulk density Central Plains Chaguaramas clods conservación de suelos conservation agreement conservation tillage controlling soil conventional tillage CPGS crop residues crusting curso-II Taller degradation DICET effects environment environmental farm-plan farmers farming system fertilizer goals Gondelles Halcrow implementation important institutional loam LSWCA maize Maracay MARNR Mg ha¹ Ministry mulch National Research Council no-tillage nutrient Paéz percent phosphorus Plains of Guárico porosity protection raindrop impact rainfall reduced region reported responsibilities Rómulo Gallegos root growth runoff Sierra Club sistema de labranza soil aggregates soil and water soil compaction soil conservation programs soil erosion soil loss soil management soil moisture soil physical soil quality Soil Sci soil strength soil structure soil surface soil surveys Soils Department splash erosion Steiner subsoiling SWCLA Taller sobre sistema tillage methods tropical Venezuela Voorhees water conservation policies water conservation programs watershed