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Inter crops for Rubber Plantation

Rubber plantations are suitable for the cultivating inter cops during the initial years of a rubber plantation. Inter space which receive plenty of sunlight can be used for growing Inter crops. The main Inter cops suitable for the rubber plantation are:

Ginger and Turmeric

Ginger and Turmeric can be grown during the initial two years of the rubber plantations. Thorough digging of the land is required for the cultivation of these crops and heavy application of cattle manure or compost and organic mulches are important in the cultivation of these crops.

Vegetables

Vegetables like cowpea, cucumber, ladies finger, amaranthus etc. can be grown during the initial 2-3 years with proper addition of organic manures.

Banana

Primarily there are two types Ratoon types and Non-Ratoon types. Another advantage of growing bananas is that, the pseudo stem, leaves and mother rhizome left after harvest can be used for mulching the rubber plant.

Among these Non-Ratoon types like Nendran is suitable as intercrop during the initial three years. Non-Ratoon types, During first year plants acn be grown in double row and during second and third only single row should be grown. In the case of Ratton-types, should be planted in single row only.

Pineapple

Pineapple is a good inter cop during initial four years. Two or three rows of pineapple suckers are planted along the inter rows of rubber in trenches during the year of planting of rubber. In sloppy lands the trenches should be taken across the slope parallel to the contour terraces to reduce soil erosion. Proper manuring using organic and chemical fertilizers is necessary to ensure high yield and to prevent depletion of soil fertility. Pineapple, once planted, will give fruits for a period of about four years.

Medicinal Plants

Some shade tolerant medicinal plants can also be grown in rubber plantation  Strobilanthus haenianus (‘Karimkurinji’), Adathoda vasica (‘Valiya Adalodakam’) and Plumbago rosea (‘Chuvanna  Koduveli’) are found suitable for cultivation in rubber plantations.

Tuber crops

Amorphophallus, dioscorea, calocasia and arrowroot can be cultivated as inter crop during the initial years of plantations. These crops can be grown alone, in mixed pattern along with banana or sequentially after one or two crops of banana or vegetable and can be retained up to 4 - 5 years. Since cultivation of these crops need filling the soil to varying degrees their cultivation should be restricted to level lands and gentle slops and fillage operations should be kept to a minimum. when dioscorea is cultivated, along with rubber, the vines should be trailed on artificial supports.