Given that annual crop yields in each of the study plots were approximately 4 metric tons/ha, what is the ratio of soil lost to crop yield under conventional tillage?
a. 64,000 kg soil/1 ton crop yield
b. 4,000 tons crop yield/1 kg soil
c. 16,000 kg soil/4 tons crop yield
d. 4,000 kg soil/1 ton crop yield
Answer: d. 4,000 kg soil/1 ton crop yield
Environmental & Atmospheric Sciences
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