Types of intercropping
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Based on the per cent of plant population used for each crop in intercropping system, it is dividing into two types.

1. Additive series (mostly adopted in India)

• One crop is sown with 100% population in pure stand known as base crop.
• Another crop known as intercrop is introduced into the base crop adjusting or changing the base crop geometry (Paired row system).
• Here crop husbandry is according to the base crop.
• The intercrop population is less than its recommended population in pure stand
• Objective is to get additional income and to cover risk.


2. Replacement series

• In replacement series both the crops are called component crops.
• Introducing a component crop by sacrificing certain proportion of other component crop population i.e replacing one row of base crop by one row of intercrop.
• Here plant population of both component crops are lower than individual crop stand (sole crop population) Ex: in groundnut –every 7th row is replaced by red gram.
• This type of intercropping is popular in western countries.