Answer to Question 1
Nutrient solution is applied in several short applications, none of which
lead to an effluent, rather than in a single long application that produces a sizeable
effluent. When salts build up in the pulse fertilized pots, water alone is applied for
a few days in the same several short application method. Upon resumption of a
normal salt level in the root substrate, fertilizer is again applied to start the same
cycle over.
Answer to Question 2
DROP can be used to control plant growth by dropping the temperature
for 2 hours in the morning at sunrise.
