Agriculture has long shaped life and livelihoods in the Treasure Valley, but dry conditions are putting many farms at risk.A drought emergency declared in April is affecting local farmers into July, with water allotments cut and some fields left unplanted.RELATED | Idaho declares drought emergency for all 44 counties as snowpack hits record lowsNeil Durrant manages Big D Ranch. Although the situation hasn't been quite as bad as he feared, Idaho'…