Frontiers of potassium
Potassium in Sustainable Intensification of Cropping Systems
- How do potassium inputs and outputs compare for different cropping systems and geopolitical boundaries?
- How and to what extent does potassium affect use efficiency of water, energy, and other nutrients?
- How and to what extent does potassium mitigate biotic and abiotic stresses on plants?
- What conditions favor loss of bioavailable potassium and how much is lost?
- What can long-term research experiments teach us about potassium management?
- What are the current, key issues in human and animal potassium nutrition?
4R Source: Improving decisions about the source of potassium to apply
- What are the lifetimes of the various global reserves of potassium?
- How are crops impacted (positively/negatively) by the choice of potassium source?
- How does the source of potassium fertilizer affect its proper placement in the soil?
- To what extent does potassium source impact plant recovery efficiency of potassium?
4R Rate: Improving the accuracy of potassium rate recommendations
- How can we improve the quantification of plant-available potassium in the soil?
- How can we improve approaches to making potassium rate recommendations?
- How can cycling of potassium from crop and other organic residues be integrated into potassium rate recommendations?
- How closely is potassium mass balance related to soil test changes?
- Why and to what extent do various crops differ in their recovery efficiency of potassium?
4R Time: Improving decisions about when to apply potassium
- What are the genetic effects on potassium accumulation rates, partitioning, and plant metabolism?
- How can potassium be managed to improve the synchrony of soil supply and plant demand?
- What is the potassium recovery efficiency of the cropping system as a whole, considering the crops grown and when applications are made?
4R Place: Improving potassium placement decisions
- What plant characteristics (rhizosphere biology and chemistry, root architecture, etc.) most influence potassium placement decisions?
- What soil characteristics (physical, chemical, biological) most influence potassium placement decisions?
- To what extent does nutrient placement impact plant recovery efficiency of potassium?
Connecting Frontier Science to Frontier Practice
- How do we increase the impact of scientific findings on soil and crop management of potassium in the field?
Date
25/01/2017
- 27 Jan 2017
Location
Rome, Italy
External URL