The potential impact of this project cannot be overstated. The current trends indicate that our Utah tree fruit industry, a vital player in the diversification of agriculture within the state and a valuable cash-crop, is facing pressures that could result in rapidly declining production. Urbanization has forced growers into marginal soil and growing environments that require more locally-specific management information. The expense of fertilizer management and other inputs and practices is also tightening margins and increasing grower economic risk.

The commercial tree fruit industry in Utah has a total of 6,644 acres in operation with an estimated utilized product value of $17 million (National Agricultural Statistics Service data for 2007) which accounts for about 11% of crop-related cash receipts in Utah, and is surpassed only by hay and wheat. Tart cherries are Utah’s most important fruit crop with 3,150 producing acres and a reported crop value of $6.62 million annually (NASS, 2006). Recent increases in fertilizer costs have forced fruit producers to re-examine their fertility practices. In order to remain profitable, orchard managers need to determine the optimum and most cost effective method to reach proper fertility levels, while maintaining high quality fruit.