Long term soil positioning observation dataset at Helen Station (1985-1994)

a. Data content (data file/table name, including observation index content)

Data File Name: Helen Station Soil Long Term Positioning Observation Dataset (1985-1994)

Contains 3 tables: Excel

(1) Soil nutrient observation dataset

(2) Dataset on the fate of nitrogen fertilizer in black soil farmland

(3) Black soil farmland phosphorus fertilizer residual efficiency dataset

This includes indicators such as nutrient supply capacity, nutrient release, crop nutrient content, soil nutrient content, nutrient budget, soil residual nitrogen, 15N abundance, soil residual fertilizer phosphorus, available phosphorus rate, and phosphorus concentration at the Helen Experimental Station.

b. Construction purpose

Study the changes in soil nutrients under different field management methods, the fate of fertilizer nitrogen under crop rotation, and the residual problems of phosphorus fertilizer in the soil, in order to promote the sustainable development of ecological agriculture.

c. Service object

Students, managers, and researchers engaged in research on nutrient cycling and soil fertility in farmland

d. Time range of data

The data was collected from 1985 to 1994

e. The spatial range and projection method of data

Helen's long-term positioning experimental station.