ISBN: - 978-93-88936-09-5 incorporates a spring so that it can stretch as the tree grows. The latex is led into the cup by a galvanized ‘Spout” that it has been knocked into the bark. 3. 4.8 Yield Cycle of Rubber The yield cycle of rubber involves broadly four phases. There is an initial pre-bearing phase of about seven years, followed by an early harvesting phase of about one to three years wherein yield is positive and increasing with high variability. Then comes the third phase which can be termed as peak bearing phase and it lasts for about four to 13 years wherein the yield reaches the highest level. In the last phase, there is a decline in yield. Replanting scheme has been proposed by the board and the basic objective of this scheme is to induce the growers to undertake timely replanting such that the shares of old age plants are reduced to minimum level. 3. 4.9. Marketing of rubber The rubber sheets in the store rooms are taken for sale at every Saturday evening. What is peculiar about the rubber sheet is that they assume black, brown or cream and produces a few odours? According to planters have varies cost of production of a sheet of rubber. 3. 4.10 Sale through Retailers Retail dealership in rubber sheet is a highly protectable business. One of the recent trends in the retail rubber business is that the retailers have been procuring latex which is fresh straight from the plantations and sell it to rubber factories which produce rubber tubes and gloves with the introductions of liberal trade policy the local producers of rubber sheets have come to know of the external market, where the demand of rubber sheets has gone up considerably leading to the resurgence of attractive price. Expenses required for cultivation In one acres of land 250-300 rubber trees can be grown. The number of trees may be varied from location to location. In the beginning stage of growth, water is required and cowdung should be used as basic fertilizer. Chemical fertilizer should also be used periodically for cultivation. The expenses required for cultivation of 1 acre of rubber for 1 year. It should be mentioned as below: Table 3.1 Sl. No. 2. Fertilizer i) Expenses required for cultivation Expenses 1. Plant (250 plants) Cow – dung 63 8,000 Rs. Rs. 12,500
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