Ushijima noticed the changes in his crops ever since he used the commercial fertilizers, he bought from Tendou. At first, he saw that his crops look more healthier but as time goes by the plants dried out even though he put water them every day and fertilizer the same amount as before.  Which of the following is the best thing Ushijima must do to save his crops? Select one: a. He must practice strip cropping to avoid depletion of minerals and erosion b. He must switch from commercial fertilizer into compost c. His crops might be accumulated by pests that is why he must use pesticides d. He must make a crop calendar and change his crop list good for 5 years

Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
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30. 

Ushijima noticed the changes in his crops ever since he used the commercial fertilizers, he bought from Tendou. At first, he saw that his crops look more healthier but as time goes by the plants dried out even though he put water them every day and fertilizer the same amount as before.  Which of the following is the best thing Ushijima must do to save his crops?
Select one:
a. He must practice strip cropping to avoid depletion of minerals and erosion
b. He must switch from commercial fertilizer into compost
c. His crops might be accumulated by pests that is why he must use pesticides
d. He must make a crop calendar and change his crop list good for 5 years
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