ESPM 131 Lecture Notes - Lecture 33: Soil Health, 7 World Trade Center, Tillage
1 May 2018
School
Course
Professor
Lecture 33:Soil Health 4/20
.Current stale :
"hof land is significantly degraded
-lots of soil (debt
-
causes :livestock overgrazing >deforestation >
ag
.Soil fertility:ability to supply essential plant nutrients in absmu of toxins
;
Soil capability : intrinsic capacity to contnb .to eusys .services
(
what soils can do /their potential )
Soil quality : cap . to Knut
.wlin an ecosystem
+land . use boundaries to sustain bio productivity,
an
quality,
+promote plant animal health
.Soil health :from obs
.that soil qval . inftu health
of animals +humans
-
encompasses the living tdynamic nature of soil
-quality health overlap
-the (out .capacity of soil to fruit .as avital living uosystm that sustains plants animals
,
+humans
.
Concept of soil heathtpality has evolved :suitability for crops → multi -functionality
.
Impact :
-soil Andin are (bundles OH soil processes that mehpin the delivery of eiosyst services
.Soil orders :
-mollisoils :bread baskets of the World
,
VH Central kin
-vltisoik :highly weathered tropical
,
Sant At
.
Evaluating soil health:
-
usually use total SOMK ,
PH
,Hzo storage ,
P
-Cornell soil Health Assessment :phys,dem .
bio
.healthy soil dndmltmstics :
-
good filth :phys chnmdw
,
dark tlarge clods is best -large pops of beneficial oqs
-sufficient depth :for took to grow
.low weed pressure
-good HZO storageHnimge -fnu
of ohansltoxins that ham crops
-sufficient supply ,but not excess nutrients -resistant to degradation
-small pops of plant pathogens +inset pals
-resilient
.constraints :compaction ,pior
aggregation ,
weeds
,pathogens,
low hnbrlmtr .
intent .
,swysodiuty ,
heavy metal Lmlam .
TA Healthy soils Initiative :collab of agencies ,building SOM to 7(seq .
,
9
resilience
-innovations :trace genomics ,
foodwnbs
