Nutrient%20Deficiency - Plants%20need%20a%20variety%20of%20nutrients%20to%20be%20able%20to%20sustain%20their%20various%20biological%20functions.%20Oftentimes%2C%20soil%20conditions%20may%20be%20suitable%20for%20planting%2C%20but%20over%20time%20could%20be%20depleted%20of%20vital%20nutrients%20needed%20to%20further%20promote%20growth.%20These%20nutrient%20deficiencies%20can%20appear%20in%20different%20ways%2C%20depending%20on%20the%20type%20of%20nutrient%20the%20plant%20is%20lacking.