Popular Agrisilvicultural systems

Multi-purpose tree based systems

Shade loving crops like ginger perform better in the inter-spaces of tree species like ailnathus (at four years of age, planted at 2 m x 2 m spacing; with 60% of open light)

Multi-purpose tree species like ailanthus, teak, vellapine, silver oak and green manure yielding trees can be successfully interplanted in the older coconut plantation (preferably above 30 years of age), in association with other field crops and medicinal plants like kacholam. 1 or 2 rows of multi-purpose trees can be grown in the middle (spacing 1-2 m between plants), depending on the space available (between coconut palms). Tree management such as lopping/pollarding etc., is important to prevent any possible inter-species competition between the multi-purpose tree component and the coconut palms.

Black pepper production

Acacia auriculiformis and Artocarpus heterophyllus are two multi-purpose support tree species suitable for block cultivation of black pepper (Piper nigrum L.). Pepper yields are promising when trees are grown in high density block plantations (3 m x 3 m) spacing; 1,111 trees ha-1). Three months old tree seedlings are planted in pits of 30 cm x 30 cm x 30 cm size during the onset of monsoon. Shade tolerant black pepper (var. Krimunda) is trailed on support trees from the second year of tree planting. The trees should be subjected to annual lopping (70%) during May. Farm yard manure and cowdung each @25 kg per tree maybe applied once annually, before the onset of monsoon rains. Both the tree species provide additional economic returns thru timber yield at final harvest. This agrisilvicultural system is most suited for warm humid tropical climate with mean annual rainfall of more than 2000 mm temperature ranges of 19.5°C (mean minimum) and 38°C (mean maximum).

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