**22. Nematode infection and nodulation under soilless cultivation**

In polyhouse French bean cultivation, nematode infection was found to be almost nil in plants grown on cocopeat but nearly half of the plants grown in soil were affected with a nematode [29]. In peas, root growth was better in plants grown on cocopeat than the plants grown under soil. However, when it comes to nodule formation, a good number of nodules was observed in the roots of plants grown on soil but no nodulation in the roots of the pea plants grown on cocopeat [30].
