What is meant by cation exchange capacity (CEC) and what is the benefit of CEC?
What will be an ideal response?
CEC is a measure of the fixed negative electrical charge in root
substrate. Since many nutrients are positively charged they are held in root
substrate on the fixed negative charges. While these nutrients are protected from
leaching they remain available for plant uptake.
You might also like to view...
What are four direct benefits of treating cuttings with auxin?
What will be an ideal response?
Signs of carbon monoxide poisoning may include vomiting, headaches, and/or dizziness.
Answer the following statement true (T) or false (F)
A 50 k? potentiometer is connected across a 15 V source. If the voltage from the wiper to the lower end of the potentiometer is 3.2 V, what is the resistance of that lower part?
A) 50 k? B) 39.3 k? C) 0 ? D) 10.7 k?
What is the number of conductors and the wire size specified for the feeder circuit supplying rooftop unit No. 1 in the power-riser diagram in the figure above?
a. Three No. 10 AWG
b. Four No. 2 AWG
c. Three No. 6 AWG
d. Four No. 4/0 AWG