Allelopathic effect of leaf loppings of homestead trees on turmeric (Curcuma longa Linn.).
Lakshmi P. G. S., John J.
Author Affiliation: College of Agriculture, Padannakkad Kerala Agricultural University, Kasaragod 671 328, Kerala, India.
Journal of Tropical Agriculture 53 : 227-232
Abstract : A pot culture study was undertaken to assess the allelopathic compatibility of leaves of certain homestead trees, viz. coconut (Cocos nucifera L.), cashew (Anacardium occidentale L.), jack (Artocarpus heterophyllus Lamk.), mango (Mangifera indica L.), tamarind (Tamarindus indica L.) and teak (Tectona grandis L.f.), commonly planted in the home gardens of Kerala, when applied as mulch in turmeric (cv. Sobha). At 6 months after planting (MAP), the number of leaves was significantly less in plants mulched with leaves of coconut, mango and teak. Rhizome yield was significantly higher when mulched with cashew (660 g plant-1), jack (557 g plant-1) and teak (565 g plant-1) leaves. However, mulching with mango leaves resulted in significantly lower yield (346.7 g plant-1). These findings will be useful for farmers in selecting suitable tree leaves for mulching in turmeric and also laying out compatible tree-crop combinations in their homesteads.