CROPPING SYSTEM
PATTEREN in which crops are grown in an area over time
DEFINING CROPPING SYSTEM
type of crop
management
distribution of crop over time,in space
disavantage
lo input
large land
pest
no incentive
factors influencing shift
social customs
declining sol fertility
oest and diseases
CONTINIUOS CROPPING
PLnatin on same piece of land year after year
SHIFT CULTIVATION
Land thath as been in fallow
vegetation burned
plant for 3 yrs
low input
low yields
high labour
CROP ROTATION
grow diff crops,one at a time, in definite sequence on same piece of land.
MAINTAINING FERTILITY IN CONTINOUS FARMING
fertiliser
short fallow
crop combo
SUCCESSFUL ROTATION CYCLE
nutrition demand-main crop
botanical sequence
root depth
factors of rotation
prevalent pest
climate
labour
advantage of rotattion
pest
risk control
erosion control
dis-labour
MONOCULTURE
continously cultivating the same crop piece on the same piece of land year after year
disadvantage
risk
pest
nutrient depletion
adv
focus on one enterprise
intercropping
plantin 2 crops simoulateously on same piece of land
types of intercropping
row
mixed
adv of intercropping
pest control
nitrogen fixing
yield stability
uniform distribution of labour
disadvantage
dificult to mechanise + control pest
