2026-10-14T18:55:37Z https://www.scidb.cn/oai

10.57760/sciencedb.IGA.00909 2023-12-25T16:08:03Z

2023-12-25 Soil Fertility Dataset in Northeast China (1951-1976) doi:10.57760/sciencedb.iga.00909 en a. Data content (data file/table name, including observation index content) Data file name: Soil Fertility Dataset in Northeast China (1951-1976) Includes 1 table: Excel (1) Soil Fertility Dataset in Northeast China (1951-1976) This includes indicators such as soil chemical properties, fertilizer application efficiency, nutrient supply capacity, trace element application efficiency, dry matter yield, and organic matter content growth. b. Construction purpose Provide basic data support for research on the protection and sustainable utilization of black soil resources in the Northeast region. c. Service recipients Personnel engaged in research, management, and teaching related to soil science. d. Time range of data The data collection period was from 1951 to 1976 e. The spatial range and projection method of data Northeast region Northeast China; Soil Fertility; 1951-1976 付微 PUBLIC https://creativecommons.org/licenses/by/4.0/ dataset Science Data Bank