Main page
New page
Upload file
Help
Community portal
Recent changes
Talk
Contributions
Create account
Enable dark mode
Enable read mode
Log in
View history
What links here
Related changes
Page information
Editing
Biodigester effluent fertilizer quality (IRRI)
(section)
From Appropedia
Warning!
You are not logged in.
Log in
or
create an account
to have your edits attributed to your username rather than your IP, along with other benefits.
Anti-spam check. Do
not
fill this in!
==== 4.Calcium (Ca) ==== * is essential for growth and cell structure in plants as well as acting as a secondary messenger for plant uptake and plant responses to environmental conditions. Without calcium plant cell membranes deteriorate.<ref>Greg Patterson. Calcium Nutrition in Plants. Certified Crop Advisor.</ref> * '''Excess''' may cause deficiency in magnesium or potassium. * '''Deficiency''' may cause reduced growth or death of leaf tips; blossom-end rot of tomato; and poor fruit development.<ref>Thomas Marler, Frank Cruz and James McConnell. Essential Plant Nutrients. College of Agriculture and Life Sciences, University of Guam</ref><br> * Calcium is removed by salinization (or salt) in drylands and deserts. Over irrigation in drylands causes irrigation water to evaporate, leaving behind increased amounts of salts. When this sodium is present in soils it suppresses the uptake of calcium by plants.<ref>Mollison, Bill. Permaculture a Designers Manual. Tagari, 1988.Pg 190- 198.</ref>
Summary:
Warning!
All contributions to Appropedia are released under the CC-BY-SA-4.0 license unless otherwise noted (see
Appropedia:Copyrights
for details). If you do not want your writing to be edited mercilessly and redistributed at will, then do not submit it here! You are also promising us that you wrote this yourself, or copied it from a public domain or similar free resource.
Do not submit copyrighted material without permission!
Cancel
Editing help
(opens in new window)
This page is a member of a hidden category:
Category:Pages with sections nested too deep
Cookies help us deliver our services. By using our services, you agree to our use of cookies.
OK
Discussion