« previous next »

Author Question: Give three reasons for using a soilless root substrate rather than a soil-base substrate. What ... (Read 167 times)

Deast7027

  • Hero Member
  • *****
  • Posts: 538
on: Jul 22, 2018
Give three reasons for using a soilless root substrate rather than a soil-base substrate.
 
  What will be an ideal response?

Question 2

What are three sources of Ca and Mg in a greenhouse crop system?
 
  What will be an ideal response?


robbielu01

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 22, 2018
Answer to Question 1

1) If the proper components are selected, pasteurization of the
substrate can be eliminated. 2) Low densities are easily achieved in soilless
substrates. 3) The need for a continuous supply of uncontaminated, uniform soil is
averted.

Answer to Question 2

The water source, liming materials in the root substrate, fertilizers.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

Your heart beats over 36 million times a year.

Root nodule development. Root nodule development.
Why would anyone decorate herself like this? Among the many reasons, one is to show solidarity ... Why would anyone decorate herself like this? Among the many reasons, one is to show solidarity ...
Reaction velocity as a function of substrate concentration Reaction velocity as a function of substrate concentration
Unusual base pairings in tRNA: (a, b) Some unusual pair matches Unusual base pairings in tRNA: (a, b) Some unusual pair matches
Using the measuring device to give the correct dose to children Using the measuring device to give the correct dose to children
BLAST results showing a 280-base sequence of a chromosome 12 contig from rats BLAST results showing a 280-base sequence of a chromosome 12 contig from rats
Video: Major Elements in Biological Molecules: Lipids

For a complete list of videos, visit our video library