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Subject: Spices, Plantation and Medicinal and Aromatic Plants × Author: KAU × End date: 1991 × Start date: 1991 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Impact of rubber producers societies on rubber plantation industry in Kasargod District
    (Department of Plantation Crops and Spices, College of Horticulture, Vellanikkara, 1991) Jose, M J; KAU; Nazeem, P A
    Rubber Producers Societies were formed among small rubber growers to improve their rubber production, productivity, processing and marketing facilities. The survey was conducted to evaluate the impact of Rubber Producers Society on rubber plantation industry in Kasargod District. 110 Rubber Producers Society members in the district were contacted for this purpose using a structured interview schedule the data were collected from the respondents and analysed by simple statistical producers such as percentage, means and standard deviations. The major findings of the study could be summarised as follows.
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    ThesisItemOpen Access
    Evaluation of the incidence of pink disease in rubber plantations in Kanjirapally Taluk, Kerala State
    (Department of Plantation Crops and Spices, College of Horticulture, Vellanikkara, 1991) Jain, P M; KAU; Sreekandan Nair, G
    A survey was conducted to study the intensity of the incidence of pink disease in Rubber Plantations of Kanjirapally Taluk, Kerala State. The clonal susceptibility, percentage of damage, control measures adopted by growers and recovery were also evaluated. Maximum incidence is noticed in RRII 105 and minimum in PB 235. The disease incidence is maximum in the 7th year . Bordeaux paste is the common fungicide used against this disease. But only few growers know the correct method of preparation and application of Bordeaux paste. Careless disposal of infected plant parts provide large inoculum for the spread of the disease. The growers fail to detect the disease sufficiently early to carry out effective control measures. Therefore need for an intensive extension education to create awareness in small growers about the disease and its timely control is evident from this study.
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    ThesisItemOpen Access
    Studies on fertility status of rubber growing soils in Kottayan Taluk
    (Department of Plantation Crops and Spices, College of Horticulture, Vellanikkara, 1991) Parameshwaran Nair, K; KAU; Srikantan Nair, G
    To assess the fertility status of the Rubber growing soils of Kottayam Taluk analytical data of five locations in Kottayam Taluk viz, Kooropada, Thiruvanchoor, Meenadam, Kottachira and Amayannur covering 200 small holdings including their case history were studied and the study revealed the following. All the soils tested were lateritic and acidic. Generally organic matter status was medium to high. Phosphorus and pottasium status were very low and Magnesium status medium to high. Tapioca intercropped areas showed depletion of nitrogen status. There was no depreciation of Phosphorus and Pottassium status in intercropped areas. Areas with leguminus ground covers showed better nitrogen status. Response to fertiliser was pronounced in the first four years and response was poor from 5th year onwards. All the small holdings were planted with modern high yielding clones and the trend is to follow Boards recommendation for manuring.