Plant Nutrient Problems



Plant Nutrient Problems

Your Challenge: You recently inherited 500 acres of corn from your father. It’s time to fertilize again but you have no idea where to start! Solve the problems below to figure out how much fertilizer you need to apply to your corn. Good Luck!

1. Potassium sulfate is chemical used to supply plants with potassium. One major function of potassium is to strengthen a plant’s root system. If a plant is deficient in potassium, the older leaves may wilt or look scorched, therefore it is important the plants get the appropriate amount of it. How many moles of K2SO4 are in 35 grams of pure potassium sulfate?

2. Nitrogen is one of the most important nutrients for plants. It allows them to obtain their “green” color and without sufficient amounts, the leaves often become yellow (called chlorosis). One means of obtaining nitrogen is through ammonium nitrate, or NH4NO3. How many grams of ammonium nitrate are in 2.5 moles of NH4NO3?

3. Calcium Hydroxide is applied to plants to give them the proper amount of calcium. Calcium deficiency symptoms result in distorted or irregular shaped leaves. However, excessive calcium can limit the availability of other nutrients. The fertilizer tag lists calcium hydroxide in moles. You need to know the amount in grams before you can apply it to your 500 acres of corn. How many grams of calcium hydroxide are in 1.8 mol Ca(OH)2?

4. Plants absorb sulfur in the form of sulfate. This readily leaches from the soil. However, if not cautions, sulfur can increase the pH of soil, making it more acidic. Suppose you are given 38 grams MgSO4. What is this amount in moles?

................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download