Moran introduces one study she conducted in Arizona to investigate the use of remote sensing data for scheduling cotton irrigations. Typically, those farmers irrigate ten times per growing season, but evidence showed that some of those farmers could achieve basically the same harvest with only nine irrigations.
“In those cases, one less irrigation saved more than all the cost of remote sensing data,” she states. “Both irrigation and satellite remote sensing data are expensive. But then again many farmers are used to working together as a group. They are used to sharing. I'm hoping they could do the same with remote sensing data—purchase one scene over a large area to cover many farms, which would further reduce the cost.”
1. What does Moran think is the problem with farmers?
A. Over璾sed reservoirs.
B. Precision farming.
C. Irrigation researches.
D. Over璱rrigation.
co答案解析:答案为D。 由第一段最后一句话 “… farmers have a tendency to over irrigate, spending both more time and money than necessary.” 可知,答案为D。
2. How can farmers get the new information about their crop?
A. To reschedule irrigation as required.
B. To watch weather changes regularly.
C. To use remote sensors as researchers suggest.
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