Two identical plants are grown in two pots in the greenhous

# Two identical plants are grown in two pots in the greenhouse. The pots are identical except for the nutrient levels (fertility). As a result, for nutrient uptake, one plant relies on mass flow of nutrients while the other uses diffusion and interception. Which plant would you expect to have more roots? Both answers can be rational/ possible if you think carefully.

# If the same mass per area of corn and alfalfa residue are placed in a field, which would you expect to decompose more quickly? Why? Estimate the C/N ratios of alfalfa and corn residues.

#Why is NEP referred to as ‘the organic C available for storage’?

# Corn and soybeans are planted in 15” or 30” rows. When water and nutrients are not limiting, crops planted in narrow rows have greater NPP than crops planted in wide rows. What controls on NPP affect this difference? 4 points

Solution

1. the plant which uses diffusion and interception is expected with more roots.Because--