AEPS 315: Principles Of Plant Nutrition, Soil Mana
AEPS 315: Principles of Plant nutrition, Soil Mana
Exam (elaborations)
AEPS 315: Principles of Plant nutrition, Soil Management
2 views 0 purchase
Course
AEPS 315: Principles of Plant nutrition, Soil Mana
Institution
AEPS 315: Principles Of Plant Nutrition, Soil Mana
AEPS 315: Principles of Plant nutrition, Soil Management
macronutrients (6) ️N
K
Ca
P
Mg
S
Micronutrients (9) ️Fe
Mn
Cl
B
Cu
Zn
Mo
Ni
Na?
role of nitrogen ️Amino acids, protein synthesis, nucleic acids
role of Potassium (7) ️Enzyme activation, winter hardin...
AEPS 315: Principles of Plant nutrition, Soil Mana
AEPS 315: Principles of Plant nutrition, Soil Mana
Seller
Follow
CertifiedGrades
Reviews received
Content preview
AEPS 315: Principles of Plant nutrition, Soil Management
macronutrients (6) ✔️N
K
Ca
P
Mg
S
Micronutrients (9) ✔️Fe
Mn
Cl
B
Cu
Zn
Mo
Ni
Na?
role of nitrogen ✔️Amino acids, protein synthesis, nucleic acids
role of Potassium (7) ✔️Enzyme activation, winter hardiness, water relations, N uptake and protein
synthesis, disease resistance,
translocation, starch synthesis
Role of Calcium ✔️membrane function, cell regulation
Role of Phosphorus ✔️ATP, used early in life cycle, root formation, nucleic acids
,Role of magnesium ✔️Chlorophyll, co-factor in ATP metabolism
role of sulfur ✔️amino acids
role of Fe ✔️Chlorophyll, cytochromes, enzymes
role of Mn ✔️Formation of amino acids, chloroplast membrane, enzyme systems
role of cl ✔️Photosynthetic phosphorylation, charge balance, osmotic pressure
role of B ✔️Synthesis of amino acids and proteins, nodule formation
role of Cu ✔️Nitrate reduction, photosynthetic electron transfer
role of Zn ✔️Enzymatic activities
role of Mo ✔️Nitrate reductase, N fixation
role of Ni ✔️Part of urease (needed in N fixation)
role of Na ✔️Photosynthesis in C4 and CAM plants.
-Substitutes for K
-Beneficial: Si, Se, Co
Liebig's Law of the Minimum ✔️Justus von Liebig's famous "Law of the Minimum" principle implies that
crop yield is proportional to the amount of the most limiting essential nutrient, whichever nutrient that
may be.
Natural nitrate of soda (Chilean nitrate) (NNS): NaNO3 ✔️-15-0-2 or 16-0-0 (soluble N)
-Mined product from a desert in Northern Chile
-The NOSB recommended that NOP implement a rule change prohibiting NNS on certified organic farms
(was scheduled to take effect in October, 2012), but NOP never prohibited it
-Restriction: "Pending additional rule-making, operators using chilean (sodium) nitrate shall use it in a
manner that maintains or improves the natural resources of the operation, ..."
practical aspects of NNS ✔️- 24% Na: undesirable in arid and semiarid regions.
- Na, in small quantities, does not cause damage to the soil ecosystem.
-Applying NNS along with an organic amendment (e.g., cocoa meal, peanut meal or compost) will
increase the efficiency of both products.
-NNS should not be relied upon as a sole source of N
plant sources ✔️- N fixation
- Crop residues
- Plants high in protein great sources for N (protein / 6.25 = total N)
Plant fertilizer examples: ✔️-Peanut meal
-Alfalfa meal
-Soybean meal
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller CertifiedGrades. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R186,13. You're not tied to anything after your purchase.
