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FUNDAMENTAL EXPERIENCE IN LAND EXPLOITATION AND CONSTRUCTION OF NINGXIA AGRORECLAMATION AREA
摘    要:<正> Ningxia Agroreclamation Bureau was set up in 1950. Before reclamation,48% of landis saline--alkali swamp soil, 35% slight sierozem, 13% sandy soil. In the early days of recla-mation, eight unfavorable factors exist in farmlands, i. e. high underground water table (0.5--1.0m).mineralization of underground water (5--36g/l).soil salinity (0.5--10%). pH


FUNDAMENTAL EXPERIENCE IN LAND EXPLOITATION AND CONSTRUCTION OF NINGXIA AGRORECLAMATION AREA
Abstract:
Keywords:Agroreclamation  Land Exploitation  Soil Amelioration by Leaching Salt  Enrichment of Soil Fertility  Rotation
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