Why is potash important to the worlds food supply

Improves water retention, yield, nutrient value, taste, color, texture and disease resistance of food crops.

Was giving by lincoln on march 4, 1865-as lincoln prepared to speak, the civil war was drawing to a close-lincolns address of 703 words was the second shortest inaugural address-lincoln mentions god 14 times-505 of the words were one syllable -he used the word "war" or it's pronoun 9 times