the GDT is not much help

Domaine(s) : agriculture 1 / 2

blocking plan

Terme(s) apparenté(s)
cropping plan
blocking
crop rotation system
assolement n. m.

Terme(s) apparenté(s)
plan d'assolement n. m.

Déf. :
Répartition des terres labourables d'une exploitation entre les différentes cultures pendant une année donnée.
Méthode d'exploitation des terres en vue de permettre la succession, à intervalles réguliers, de cultures variées sur une même parcelle.

So many sites on crop distribution that it is hard to select one. You could also say, as you yourself suggested "crop rotation over time and space"

hope it helps

paola l m
hull,quebec

Could "fallow" work? Also the expression "lie in fallow", not reserved exclusively in the agricultural domain either!

I did a search with both terms in French and found this :

1 -http://dsp-psd.pwgsc.gc.ca/Thesaurus/francais/00000059.htm
Rechercher le:
Catalogue du PSD sur Rotation des cultures
Catalogue d'IGCI sur Rotation des cultures
Moteur de recherche du Site du Canada sur Rotation des cultures
| Index principal | | Index des termes d'éntrée | | Index des termes |
Rotation des cultures
Anglais:
Crop rotation
Employé pour:
Assolement
Jachère
Terme associé:
Cultures

2 -http://dsp-psd.pwgsc.gc.ca/Thesaurus/francais/00001082.htm
Rechercher le:
Catalogue du PSD sur Assolement
Catalogue d'IGCI sur Assolement
Moteur de recherche du Site du Canada sur Assolement
| Index principal | | Index des termes d'éntrée | | Index des termes |
Assolement
Employer:
Rotation des cultures

3 - http://dsp-psd.pwgsc.gc.ca/Thesaurus/English/00002514.htm
Search the:
DSP Catalogue for Crop rotation
CGII Catalogue for Crop rotation
Canada Site search engine for Crop rotation |
| Main Index | | TopTerm Index | | Term Index |

Crop rotation
French:
Rotation des cultures
Used for:
Fallow
Related Terms:
Crops
4 - http://www.mo.nrcs.usda.gov/technical/section4/agronomy/328s...
CONSERVATION CROP ROTATION (Acres)
CODE 328
Issued 1-97

DEFINITION
Growing crops in a recurring sequence on the same field.
PURPOSES
This practice may be applied as part of a conservation management system to support one or more of the following:
* Reduce sheet and rill erosion.
* Reduce irrigation induced erosion.
* Reduce soil erosion from wind.
* Maintain or improve soil organic matter content.
* Manage deficient or excess plant nutrients.
* Improve water use efficiency.
* Manage saline seeps.
* Manage plant pests (weeds, insects, nematodes, and diseases).
* Provide food for domestic livestock.
* Provide food and cover for wildlife.
CONDITIONS WHERE PRACTICE APPLIES
This practice applies to all cropland and other land where crops are grown.
This standard does not apply to pastureland, hayland, or other land uses where annual row or close growing crops are grown occasionally only to facilitate renovation or reestablishment of perennial vegetation. It does not apply to land devoted to orchards, vineyards, or nurseries.
5 - http://www.academicpress.com/inscight/08111997/fallow1.htm
fallow
Agriculture
• 1. of or relating to farm land that is not in active use for the growing of crops. 2. to remove land from active crop production.

6 - www.ca.uky.edu/agc/pubs/for/for93/for93.htm

... Definition of Conservation Practices in Kentucky, An Interagency Landowner Assistance
Technical ... crop is alternated with a clean-tilled crop or fallow. 2. ...

I don't know much about this area, but Termium gives a few alternatives which may be of some help. Cropping plan, cropping programme and cropping system.

Hope this helps!