Question

why are nitrogenous fertilyers not added in the soil in which leguminous plants grow why are insectivorous plants called partial heterophic?

Answer 1

Hii..

Leguminous plants have symbiotic association with bacteria called RHIZOBIUM which ensures conversion of atmospheric nitrogen into nitrogenous compounds hence no nitrogenous fertilisers are added externally..

Insectivorous plants such as pitcher plant are partially heterotrophic because they depend on insects as they grow in nitrogen deficient soils so to ensure nitrogen they consume insects..and normally depends on sunlight also as they are also autotrophic

Hope it helps..!!