Highly touted changes were adopted over the past 30 years since the collapse of the Soviet Bloc stripped Cuba of its most important sources of aid and trade. Officials have eroded the dominance of state farms and encouraged more semi-independent cooperatives. They have given farmers greater land use rights and loosened restrictions on sales. But none of those efforts has yet been able to solve the island's chronic agricultural woes. While government prices for some supplies such as local herbicides, fertilizers, wire and tools were cut, many inputs remain hard to get. The state is trying to overcome a lack of resources needed to import them.The shortage of fruits and pork, which are staples of the Cuban diet has become even more dire due to hardships caused by a pandemic that choked off the revenue-producing tourism industry - and by economic sanctions tightened under former U.S. President Donald Trump.