In many of the regions of the world, where rainfall does not limit crop productivity, this condition is a major limitation to crop productivity.

You’re instructed to check on a resident BID (every 2 hours) for the next 8 hours starting at 0700.  Military times will be…

Solar radiation reaching the earth is greatest at:

Alexander von Humboldt was the first to notice that:

The cycle that describes the replenishing of ground and surface water is called:

In many places where crops originated a diet emerged that consisted of a legume for protein and a ____________ for energy.

You are growing Carolina Reaper peppers in a 2 ft diameter pot that has a surface area of 3.1 square feet, and believe it is time to fertilize. The instructions suggest that you apply 3 lbs of N per 1000 ft2 of garden. To apply this N rate how much fertilizer do you need to apply to the pot? Your fertilizer choice is MiracleGro 20-20-20. To the extent that you can show your work or explain your method of solving this problem for partial credit.

The ratio of the plant product you want (grain for example) compared to the total plant mass is called the?

A rock breaking apart do to freezing and thawing is an example of:

In an ecosystem with a complete vegetation cover (canopy), competition among plants will most likely be for: