Glen Innes, Australia hosts a long-term agricultural experiment initiated in 1921. The study analyzes soil properties under various crop rotation systems and nitrogen fertilizer treatments. Data collection was conducted by SCIOPS, with soil sampling events recorded from at least 1997 onward.
Use Cases
- Model changes in soil organic carbon percentage (OC%) over time under different rotation treatments like maize-forage oats (M,sO).
- Analyze the effect of 50kgN/ha inorganic fertilizer application on soil pH, mineral nitrogen (NO3, NH4), and nutrient levels (Mg, Ca, K, Na).
- Compare soil total nitrogen percentage (total N%) and phosphorus (P) across rotation sequences such as maize, maize, spring oats, red clover (M, M, sO, C).
- Study soil layer properties (e.g., 0-15cm, 70-80cm) and electrical conductivity (EC) from deep coring events in 1997.
Strengths
- Experiment initiated in 1921, providing a century-long observational baseline.
- Soil measurements include multiple chemical properties (OC%, total N%, P, pH, EC, nutrients).
- Treatments compare multiple defined crop rotation systems and a controlled nitrogen fertilizer split.
Limitations
- Deep soil coring has occurred infrequently, no more than 4 times over the trial's duration.
- Specific row counts, sample frequencies, and complete temporal coverage are not documented.
Provenance
- Source
- SCIOPS via NASA Earthdata.
- Collection Method
- Soil cores collected with steel cylindrical corers and a pneumatic rig, with samples bulked from multiple points per plot.
- Time Range
- Experiment initiated 1921; soil sampling data from at least 1997 present.
- Freshness
- null
- Geography
- Glen Innes, cool temperate region of Australia.