« previous next »

Author Question: Give three reasons for using a soilless root substrate rather than a soil-base substrate. What ... (Read 165 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?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Genetic control of root hair development. Genetic control of root hair 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 ...
Common Root Words and Combining Forms Cont Common Root Words and Combining Forms Cont
Soil Erosion "تآكل التربة" Soil Erosion "تآكل التربة"
Desert soil profile Desert soil profile
The relationship between acid–base imbalances and potassium imbalances The relationship between acid–base imbalances and potassium imbalances
Video: Type of Transport - Active and Passive Processes

For a complete list of videos, visit our video library