DETFPMINATS OF CROPPING PATTERNS, CROPPING PATTERN DETERMINANTS

ENVIRONMENTAL FACTORS that influence the performance of CROPPING
PATTERNS rnd are not readily modifiable by changes in cultural
techniques -f crop production.



DIAG.,NOSTIC -;URVEY

A survey c? a potential TARGET AREA \o as to gain information on
existing F~rMING SYSTEMS particularly in terms of problem and
constraint identification.



DISCIPLINARY RESEARCH

The process of approaching the ob cct of study from the
perspecti.ei of a particular discipline, e.g., economics or soil
science.



DISC EILINARV SPECIAL ISTS

Researchers who have been trained in a particular field of study,
such as agronomy, animal husbandry, agricultural economics,
agricultural engineering or rural sociology.



DIVERSITY I;,.DEX (DI)

A measure f the multiplicity of farm products that are produced
by a farm during a single year. It is calculated as the
reciprocal of the su. of the squares of the share of the gross
revenue re:cived from each individual enterprise during a single
year.



DOUBLE CROPPING

Growing tw;; crops in sequence, seeding or transplanting one after
the harvest of the other. Also known as SEQUGNTIAL CROPPINO.


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