In North India where irrigation facilities exist, a number of cropping systems of crops involving rice are feasible. After harvest of rice, crops like potato, berseem  toria, etc., can be sown and will fit very well in intensive crop rotations. In rainfed areas too, where the soils are well drained and have good moisture retention capacity, legume crops like chick pea, lentil could be grown successfully after the harvest of rice, which mature on the residual moisture in the soil. Some of the cropping systems are given below : 

(A) Irrigated Areas-

1. Rice-wheat
2. Rice- potato-urd (black gram)
3. Rice- toria-wheat
4. Rice- wheat -moong (green gram)
5. Rice-potato -moong (green gram)
6. Rice- pea (for pods) -moong (green gram)
7. Rice-wheat -Jute
8. Rice- field peas -sugarcane.

(B) Un-irrigated Areas

1. Rice- chickpea
2. Rice- lentil
3. Rice- field pea

In case of intensive crop rotations where there are more than two crops in a year, a paddy variety of early duration should be selected.

In South India, where the winter temperature is not so low, double cropping of rice is practised. In eastern India, in low-lying areas a crop of jute is grown followed by rice. Some of the cropping systems are as below:

1. Rice -rice-wheat
2. Jute -rice-wheat
3. Rice-maize-jute
4. Rice- potato-jute