potassium oxide has been researched along with phosphorus in 2 studies
| Timeframe | Studies, this research(%) | All Research% |
|---|---|---|
| pre-1990 | 0 (0.00) | 18.7374 |
| 1990's | 1 (50.00) | 18.2507 |
| 2000's | 0 (0.00) | 29.6817 |
| 2010's | 1 (50.00) | 24.3611 |
| 2020's | 0 (0.00) | 2.80 |
| Authors | Studies |
|---|---|
| Chen, X; Ding, D; Huang, W; Liu, S; Lu, J; Xu, D | 1 |
| Thiex, NJ | 1 |
2 other study(ies) available for potassium oxide and phosphorus
| Article | Year |
|---|---|
[Nutritive physiology of Psoralea corylifolia L].
Topics: Fabaceae; Fertilizers; Nitrogen; Oxides; Phosphorus; Phosphorus Compounds; Plants, Medicinal; Potassium; Potassium Compounds; Soil; Tissue Distribution | 1990 |
Determination of Phosphorus and Potassium in Commercial Inorganic Fertilizers by Inductively Coupled Plasma-Optical Emission Spectrometry: Single-Laboratory Validation, First Action 2015.18.
Topics: Calibration; Citric Acid; Edetic Acid; Fertilizers; Oxides; Phosphorus; Phosphorus Compounds; Potassium; Potassium Compounds; Quaternary Ammonium Compounds; Spectrophotometry, Atomic; Validation Studies as Topic | 2016 |