The phrase "fallow period" refers to a time when something or someone takes a break or rests. It is a period of inactivity or non-productivity. Full definition
This, after all, is one of America's great enterprises, an icon that, aside from the occasional fallow period, has thrived for 175 years. (fortune.com)
He needs to let his public and political profile have a somewhat fallow period if they are to fully realise the potential that remains within them. (labour-uncut.co.uk)
«It is unlikely that historically low rates of deforestation can persist in the face of growing pressures to clear land due to increases in population, demand for wood and charcoal, cropping with reduced fallow periods leading to soil degradation, and international interests in large scale land investments for oil, biofuel and other crops,» the study states. (scientificamerican.com)